division 00 - procurement and contracting requirements€¦ · part 3 execution 3.1 general...

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

619453 00 01 01-1

SECTION 00 01 01 - PROJECT TITLE PAGE

PROJECT MANUAL

FOR

619453 - GLEN AVE HVAC REPLACEMENT

WICOMICO COUNTY PUBLIC SCHOOLS

GLEN AVENUE ELEMENTARY SCHOOL

1615 GLEN AVENUE EXT

SALISBURY, MD 21804

PREPARED BY:

RMF ENGINEERING

END OF SECTION

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

619453 00 01 10-1

SECTION 00 01 10 - TABLE OF CONTENTS

PROCUREMENT AND CONTRACTING REQUIREMENTS

1.1 DIVISION 00 -- PROCUREMENT AND CONTRACTING REQUIREMENTS

A. 00 01 01 - Project Title Page

B. 00 01 10 - Table of Contents

SPECIFICATIONS

2.1 DIVISION 01 -- GENERAL REQUIREMENTS

A. 01 25 00 - Substitution Procedures

B. 01 30 00 - Administrative Requirements

C. 01 60 00 - Product Requirements

D. 01 70 00 - Execution and Closeout Requirements

E. 01 78 00 - Closeout Submittals

2.2 DIVISION 02 -- EXISTING CONDITIONS

2.3 DIVISION 03 -- CONCRETE

2.4 DIVISION 04 -- MASONRY

2.5 DIVISION 05 -- METALS

2.6 DIVISION 06 -- WOOD, PLASTICS, AND COMPOSITES

2.7 DIVISION 07 -- THERMAL AND MOISTURE PROTECTION

2.8 DIVISION 08 -- OPENINGS

2.9 DIVISION 09 -- FINISHES

2.10 DIVISION 10 -- SPECIALTIES

2.11 DIVISION 11 -- EQUIPMENT

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2.12 DIVISION 12 -- FURNISHINGS

2.13 DIVISION 13 -- SPECIAL CONSTRUCTION

2.14 DIVISION 14 -- CONVEYING EQUIPMENT

2.15 DIVISION 21 -- FIRE SUPPRESSION

2.16 DIVISION 22 -- PLUMBING

A. 22 10 05 - Plumbing Piping

2.17 DIVISION 23 -- HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC)

A. 23 05 53 - Identification for HVAC Piping and Equipment

B. 23 05 93 - Testing, Adjusting, and Balancing for HVAC

C. 23 07 13 - Duct Insulation

D. 23 07 19 - HVAC Piping Insulation

E. 23 31 00 - HVAC Ducts and Casings

F. 23 33 00 - Air Duct Accessories

G. 23 37 00 - Air Outlets and Inlets

H. 23 74 13 - Packaged Outdoor Central-Station Air-Handling Units

I. 23 74 33 - Dedicated Outdoor Air Units

J. 23 81 29 - Variable Refrigerant Flow HVAC Systems

2.18 DIVISION 25 -- INTEGRATED AUTOMATION

2.19 DIVISION 26 -- ELECTRICAL

A. 26 05 05 - Selective Demolition for Electrical

B. 26 05 19 - Low-Voltage Electrical Power Conductors and Cables

C. 26 05 26 - Grounding and Bonding for Electrical Systems

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D. 26 05 29 - Hangers and Supports for Electrical Systems

E. 26 05 33.13 - Conduit for Electrical Systems

F. 26 05 33.16 - Boxes for Electrical Systems

G. 26 05 53 - Identification for Electrical Systems

H. 26 24 16 - Panelboards

I. 26 27 26 - Wiring Devices

J. 26 28 13 - Fuses

K. 26 28 16.16 - Enclosed Switches

2.20 DIVISION 27 -- COMMUNICATIONS

2.21 DIVISION 28 -- ELECTRONIC SAFETY AND SECURITY

A. 28 46 00 - Fire Detection and Alarm

2.22 DIVISION 31 -- EARTHWORK

2.23 DIVISION 32 -- EXTERIOR IMPROVEMENTS

2.24 DIVISION 33 -- UTILITIES

2.25 DIVISION 46 -- WATER AND WASTEWATER EQUIPMENT

END OF SECTION

DIVISION 01 - GENERAL REQUIREMENTS

619453 01 25 00-1

SECTION 01 25 00 - SUBSTITUTION PROCEDURES

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Procedural requirements for proposed substitutions.

1.2 DEFINITIONS

A. Substitutions: Changes from Contract Documents requirements proposed byContractor to materials, products, assemblies, and equipment.1. Substitutions for Cause: Proposed due to changed Project circumstances beyond

Contractor's control.a. Unavailability.b. Regulatory changes.

2. Substitutions for Convenience: Proposed due to possibility of offering substantialadvantage to the Project. Substitutions to be made at least 5 days before bids aredue to allow time for review and approval. Substitutions for Convenience afterbids have been received will not be accepted.

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

A. A Substitution Request for products, assemblies, materials, and equipment constitutes arepresentation that the submitter:1. Has investigated proposed product and determined that it meets or exceeds the

quality level of the specified product, equipment, assembly, or system.2. Agrees to provide the same warranty for the substitution as for the specified

product.3. Agrees to coordinate installation and make changes to other work that may be

required for the work to be complete, with no additional cost to WicomicoCounty Public Schools.

4. Waives claims for additional costs or time extension that may subsequentlybecome apparent.

B. Document each request with complete data substantiating compliance of proposedsubstitution with Contract Documents. Burden of proof is on proposer.

C. Content: Include information necessary for tracking the status of each SubstitutionRequest, and information necessary to provide an actionable response.

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1. No specific form is required. Contractor's Substitution Request documentationmust include the following:a. Project Information:

1) Official project name and number, and any additional requiredidentifiers established in Contract Documents.

2) Wicomico County Public Schools's, Engineer's, and Contractor'snames.

b. Substitution Request Information:1) Indication of whether the substitution is for cause or convenience.2) Issue date.3) Description of Substitution.4) Reason why the specified item cannot be provided.5) Differences between proposed substitution and specified item.6) Description of how proposed substitution affects other parts of

work.c. Attached Comparative Data: Provide point-by-point, side-by-side

comparison addressing essential attributes specified, as appropriate andrelevant for the item:1) Physical characteristics.2) In-service performance.3) Warranties.

d. Impact of Substitution:1) Savings to Wicomico County Public Schools for accepting

substitution.2) Change to Contract Time due to accepting substitution.

D. Limit each request to a single proposed substitution item.

3.2 RESOLUTION

A. Engineer may request additional information and documentation prior to rendering adecision. Provide this data in an expeditious manner.

B. Engineer will notify Contractor in writing of decision to accept or reject request.1. Engineer's decision following review of proposed substitution will be noted on

the submitted form.

3.3 ACCEPTANCE

A. Accepted substitutions change the work of the Project. They will be documented andincorporated into work of the project by Change Order, Construction Change Directive,Architectural Supplementary Instructions, or similar instruments provided for in theConditions of the Contract.

END OF SECTION

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619453 01 30 00-1

SECTION 01 30 00 - ADMINISTRATIVE REQUIREMENTS

PART 1 GENERAL


A. Electronic document submittal service.

B. Preconstruction meeting.

C. Site mobilization meeting.

D. Progress meetings.

E. Construction progress schedule.

F. Coordination drawings.

G. Number of copies of submittals.

H. Requests for Interpretation (RFI) procedures.

I. Submittal procedures.

1.2 PROJECT COORDINATOR

A. Project Coordinator: Construction Manager.

B. Cooperate with the Project Coordinator in allocation of mobilization areas of site; forfield offices and sheds, for contractor access, traffic, and parking facilities.

C. During construction, coordinate use of site and facilities through the ProjectCoordinator.

D. Comply with Project Coordinator's procedures for intra-project communications;submittals, reports and records, schedules, coordination drawings, andrecommendations; and resolution of ambiguities and conflicts.

E. Comply with instructions of the Project Coordinator for use of temporary utilities andconstruction facilities. Responsibility for providing temporary utilities and constructionfacilities is identified in Section 01 10 00 - Summary.

F. Coordinate field engineering and layout work under instructions of the ProjectCoordinator.

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G. Make the following types of submittals to Engineer through the Project Coordinator:1. Requests for Interpretation.2. Requests for substitution.3. Shop drawings, product data, and samples.4. Test and inspection reports.5. Design data.6. Progress schedules.7. Correction Punch List and Final Correction Punch List for Substantial Completion.8. Closeout submittals.


PART 3 EXECUTION

3.1 ELECTRONIC DOCUMENT SUBMITTAL SERVICE

A. All documents transmitted for purposes of administration of the contract are to be inelectronic (PDF, MS Word, or MS Excel) format, as appropriate to the document, andtransmitted via an Internet-based submittal service that receives, logs and storesdocuments, provides electronic stamping and signatures, and notifies addressees viaemail.1. Besides submittals for review, information, and closeout, this procedure applies

to Requests for Interpretation (RFIs), progress documentation, contractmodification documents (e.g. supplementary instructions, change proposals,change orders), applications for payment, field reports and meeting minutes,Contractor's correction punchlist, and any other document any participant wishesto make part of the project record.

2. Contractor and Engineer are required to use this service.3. It is Contractor's responsibility to submit documents in allowable format.4. Subcontractors, suppliers, and Engineer's consultants will be permitted to use the

service at no extra charge.5. Users of the service need an email address, internet access, and PDF review

software that includes ability to mark up and apply electronic stamps (such asAdobe Acrobat, www.adobe.com, or Bluebeam PDF Revu, www.bluebeam.com),unless such software capability is provided by the service provider.

6. All other specified submittal and document transmission procedures apply,except that electronic document requirements do not apply to samples or colorselection charts.

3.2 PRECONSTRUCTION MEETING

A. Project Coordinator will schedule a meeting after Notice of Award.

B. Attendance Required:1. Wicomico County Public Schools.

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2. Engineer.3. Contractor.

C. Agenda:1. Execution of Wicomico County Public Schools-Contractor Agreement.2. Submission of executed bonds and insurance certificates.3. Distribution of Contract Documents.4. Submission of list of subcontractors, schedule of values, and progress schedule.5. Submission of initial Submittal schedule.6. Procedures and processing of field decisions, submittals, substitutions,

applications for payments, proposal request, Change Orders, and Contractcloseout procedures.

7. Scheduling.

D. Record minutes and distribute copies withinthree days after meeting to participants,with copies to Engineer, Wicomico County Public Schools, participants, and thoseaffected by decisions made.

3.3 SITE MOBILIZATION MEETING

A. Project Coordinator will schedule meeting at the Project site prior to Contractoroccupancy.

B. Attendance Required:1. Contractor.2. Wicomico County Public Schools.3. Engineer.4. Contractor's superintendent.5. Major subcontractors.

C. Agenda:1. Use of premises by Wicomico County Public Schools and Contractor.2. Wicomico County Public Schools's requirements.3. Construction facilities and controls provided by Wicomico County Public Schools.4. Temporary utilities provided by Wicomico County Public Schools.5. Survey and building layout.6. Security and housekeeping procedures.7. Schedules.8. Application for payment procedures.9. Procedures for testing.10. Procedures for maintaining record documents.11. Requirements for start-up of equipment.12. Inspection and acceptance of equipment put into service during construction

period.

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D. Record minutes and distribute copies within three days after meeting to participants,with copies to Engineer, Wicomico County Public Schools, participants, and thoseaffected by decisions made.

3.4 PROGRESS MEETINGS

A. Project Coordinator will make arrangements for meetings, prepare agenda with copiesfor participants, preside at meetings.

B. Attendance Required:1. Contractor.2. Wicomico County Public Schools.3. Engineer.4. Contractor's superintendent.5. Major subcontractors.

C. Agenda:1. Review minutes of previous meetings.2. Review of work progress.3. Field observations, problems, and decisions.4. Identification of problems that impede, or will impede, planned progress.5. Review of submittals schedule and status of submittals.6. Review of RFIs log and status of responses.7. Maintenance of progress schedule.8. Corrective measures to regain projected schedules.9. Planned progress during succeeding work period.10. Maintenance of quality and work standards.11. Effect of proposed changes on progress schedule and coordination.12. Other business relating to work.

D. Record minutes and distribute copies within three days after meeting to participants,with copies to Engineer, Wicomico County Public Schools, participants, and thoseaffected by decisions made.

3.5 CONSTRUCTION PROGRESS SCHEDULE

A. If preliminary schedule requires revision after review, submit revised schedule within 10days.

B. Within 20 days after review of preliminary schedule, submit draft of proposed completeschedule for review.1. Include written certification that major contractors have reviewed and accepted

proposed schedule.

C. Within 10 days after joint review, submit complete schedule.

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D. Submit updated schedule with each Application for Payment.

3.6 COORDINATION DRAWINGS

A. Provide information required by Project Coordinator for preparation of coordinationdrawings.

3.7 REQUESTS FOR INTERPRETATION (RFI)

A. Definition: A request seeking one of the following:1. An interpretation, amplification, or clarification of some requirement of Contract

Documents arising from inability to determine from them the exact material,process, or system to be installed; or when the elements of construction arerequired to occupy the same space (interference); or when an item of work isdescribed differently at more than one place in Contract Documents.

2. A resolution to an issue which has arisen due to field conditions and affectsdesign intent.

B. Whenever possible, request clarifications at the next appropriate project progressmeeting, with response entered into meeting minutes, rendering unnecessary theissuance of a formal RFI.

C. Preparation: Prepare an RFI immediately upon discovery of a need for interpretation ofContract Documents. Failure to submit a RFI in a timely manner is not a legitimatecause for claiming additional costs or delays in execution of the work.1. Prepare a separate RFI for each specific item.2. Prepare in a format and with content acceptable to Wicomico County Public

Schools.

D. Content: Include identifiers necessary for tracking the status of each RFI, andinformation necessary to provide an actionable response.1. Official Project name and number, and any additional required identifiers

established in Contract Documents.2. Wicomico County Public Schools's, Engineer's, and Contractor's names.3. Discrete and consecutive RFI number, and descriptive subject/title.4. Issue date, and requested reply date.5. Reference to particular Contract Document(s) requiring additional

information/interpretation. Identify pertinent drawing and detail number and/orspecification section number, title, and paragraph(s).

6. Annotations: Field dimensions and/or description of conditions which haveengendered the request.

7. Contractor's suggested resolution: A written and/or a graphic solution, to scale,is required in cases where clarification of coordination issues is involved, forexample; routing, clearances, and/or specific locations of work shown

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diagrammatically in Contract Documents. If applicable, state the likely impact ofthe suggested resolution on Contract Time or the Contract Sum.

E. RFI Log: Prepare and maintain a tabular log of RFIs for the duration of the project.1. Indicate current status of every RFI. Update log promptly and on a regular basis.2. Note dates of when each request is made, and when a response is received.3. Highlight items requiring priority or expedited response.4. Highlight items for which a timely response has not been received to date.

F. Review Time: Engineer will respond and return RFIs to Contractor within three calendardays of receipt. For the purpose of establishing the start of the mandated responseperiod, RFIs received after 12:00 noon will be considered as having been received onthe following regular working day.1. Response period may be shortened or lengthened for specific items, subject to

mutual agreement, and recorded in a timely manner in progress meetingminutes.

G. Responses: Content of answered RFIs will not constitute in any manner a directive orauthorization to perform extra work or delay the project. If in Contractor's belief it islikely to lead to a change to Contract Sum or Contract Time, promptly issue a notice tothis effect, and follow up with an appropriate Change Order request to WicomicoCounty Public Schools.1. Response may include a request for additional information, in which case the

original RFI will be deemed as having been answered, and an amended one is tobe issued forthwith. Identify the amended RFI with an R suffix to the originalnumber.

3.8 SUBMITTAL SCHEDULE

A. Submit to Engineer for review a schedule for submittals in tabular format.1. Format schedule to allow tracking of status of submittals throughout duration of

construction.2. Arrange information to include scheduled date for initial submittal, specification

number and title, submittal category (for review or for information), descriptionof item of work covered, and role and name of subcontractor.

3. Account for time required for preparation, review, manufacturing, fabricationand delivery when establishing submittal delivery and review deadline dates.a. For assemblies, equipment, systems comprised of multiple components

and/or requiring detailed coordination with other work, allow foradditional time to make corrections or revisions to initial submittals, andtime for their review.

3.9 SUBMITTALS FOR REVIEW

A. When the following are specified in individual sections, submit them for review:1. Product data.

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2. Shop drawings.3. Samples for selection.4. Samples for verification.

B. Submit to Engineer for review for the limited purpose of checking for compliance withinformation given and the design concept expressed in Contract Documents.

C. Samples will be reviewed for aesthetic, color, or finish selection.

3.10 SUBMITTALS FOR PROJECT CLOSEOUT

A. Submit Correction Punch List for Substantial Completion.

B. Submit Final Correction Punch List for Substantial Completion.

C. When the following are specified in individual sections, submit them at project closeoutin compliance with requirements of Section 01 78 00 - Closeout Submittals:1. Project record documents.2. Operation and maintenance data.3. Warranties.4. Bonds.5. Other types as indicated.

D. Submit for Wicomico County Public Schools's benefit during and after projectcompletion.

3.11 NUMBER OF COPIES OF SUBMITTALS

A. Electronic Documents: Submit one electronic copy in PDF format; anelectronically-marked up file will be returned. Create PDFs at native size and right-sideup; illegible files will be rejected.

B. Samples: Submit the number specified in individual specification sections; one of whichwill be retained by Engineer.1. After review, produce duplicates.2. Retained samples will not be returned to Contractor unless specifically so stated.

3.12 SUBMITTAL PROCEDURES

A. General Requirements:1. Use a separate transmittal for each item.2. Submit separate packages of submittals for review and submittals for

information, when included in the same specification section.3. Transmit using approved form.

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4. Sequentially identify each item. For revised submittals use original number and asequential numerical suffix.

5. Identify: Project; Contractor; subcontractor or supplier; pertinent drawing anddetail number; and specification section number and article/paragraph, asappropriate on each copy.

6. Apply Contractor's stamp, signed or initialed certifying that review, approval,verification of products required, field dimensions, adjacent construction work,and coordination of information is in accordance with the requirements of thework and Contract Documents.

7. Schedule submittals to expedite the Project, and coordinate submission ofrelated items.a. For each submittal for review, allow 10 days excluding delivery time to and

from the Contractor.b. For sequential reviews involving Engineer's consultants, Wicomico County

Public Schools, or another affected party, allow an additional 7 days.

3.13 SUBMITTAL REVIEW

A. Submittals for Review: Engineer will review each submittal, and approve, or take otherappropriate action.

B. Engineer's actions will be reflected by marking each returned submittal using virtualstamp on electronic submittals.1. Notations may be made directly on submitted items and/or listed on appended

Submittal Review cover sheet.

C. Engineer's and consultants' actions on items submitted for review:1. Authorizing purchasing, fabrication, delivery, and installation:

a. "Approved", or language with same legal meaning.b. "Approved as Noted, Resubmission not required", or language with same

legal meaning.1) At Contractor's option, submit corrected item, with review notations

acknowledged and incorporated.c. "Approved as Noted, Resubmit for Record", or language with same legal

meaning.1) Resubmit corrected item, with review notations acknowledged and

incorporated. Resubmit separately, or as part of project recorddocuments.

2. Not Authorizing fabrication, delivery, and installation:a. "Revise and Resubmit".

1) Resubmit revised item, with review notations acknowledged andincorporated.

b. "Rejected".1) Submit item complying with requirements of Contract Documents.

D. Engineer's and consultants' actions on items submitted for information:

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1. Items for which no action was taken:a. "Received" - to notify the Contractor that the submittal has been received

for record only.2. Items for which action was taken:

a. "Reviewed" - no further action is required from Contractor.

END OF SECTION


619453 01 60 00-1

SECTION 01 60 00 - PRODUCT REQUIREMENTS

PART 1 GENERAL


A. Transportation, handling, storage and protection.

B. Product option requirements.

C. Substitution limitations.

D. Maintenance materials, including extra materials, spare parts, tools, and software.

1.2 SUBMITTALS

A. Product Data Submittals: Submit manufacturer's standard published data. Mark eachcopy to identify applicable products, models, options, and other data. Supplementmanufacturers' standard data to provide information specific to this Project.

B. Shop Drawing Submittals: Prepared specifically for this Project; indicate utility andelectrical characteristics, utility connection requirements, and location of utility outletsfor service for functional equipment and appliances.

C. Sample Submittals: Illustrate functional and aesthetic characteristics of the product,with integral parts and attachment devices. Coordinate sample submittals forinterfacing work.1. For selection from standard finishes, submit samples of the full range of the

manufacturer's standard colors, textures, and patterns.

PART 2 PRODUCTS

2.1 NEW PRODUCTS

A. Provide new products unless specifically required or permitted by Contract Documents.

B. Use of products having any of the following characteristics is not permitted:1. Made using or containing CFC's or HCFC's.2. Containing lead, cadmium, or asbestos.

2.2 PRODUCT OPTIONS

A. Products Specified by Reference Standards or by Description Only: Use any productmeeting those standards or description.

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B. Products Specified by Naming One or More Manufacturers: Use a product of one of themanufacturers named and meeting specifications, no options or substitutions allowed.

C. Products Specified by Naming One or More Manufacturers with a Provision forSubstitutions: Submit a request for substitution for any manufacturer not named.

2.3 MAINTENANCE MATERIALS

A. Furnish extra materials, spare parts, tools, and software of types and in quantitiesspecified in individual specification sections.

B. Deliver to Project site; obtain receipt prior to final payment.

PART 3 EXECUTION

3.1 SUBSTITUTION LIMITATIONS

A. See Section 01 25 00 - Substitution Procedures.

3.2 TRANSPORTATION AND HANDLING

A. Package products for shipment in manner to prevent damage; for equipment, packageto avoid loss of factory calibration.

B. If special precautions are required, attach instructions prominently and legibly onoutside of packaging.

C. Coordinate schedule of product delivery to designated prepared areas in order tominimize site storage time and potential damage to stored materials.

D. Transport and handle products in accordance with manufacturer's instructions.

E. Transport materials in covered trucks to prevent contamination of product and litteringof surrounding areas.

F. Promptly inspect shipments to ensure that products comply with requirements,quantities are correct, and products are undamaged.

G. Provide equipment and personnel to handle products by methods to prevent soiling,disfigurement, or damage, and to minimize handling.

H. Arrange for the return of packing materials, such as wood pallets, where economicallyfeasible.

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3.3 STORAGE AND PROTECTION

A. Designate receiving/storage areas for incoming products so that they are deliveredaccording to installation schedule and placed convenient to work area in order tominimize waste due to excessive materials handling and misapplication. See Section 0174 19.1. Structural Loading Limitations: Handle and store products and materials so as

not to exceed static and dynamic load-bearing capacities of project floor and roofareas.

B. Store and protect products in accordance with manufacturers' instructions.

C. Store with seals and labels intact and legible.

D. Store sensitive products in weathertight, climate-controlled enclosures in anenvironment favorable to product.

E. For exterior storage of fabricated products, place on sloped supports above ground.

F. Protect products from damage or deterioration due to construction operations,weather, precipitation, humidity, temperature, sunlight and ultraviolet light, dirt, dust,and other contaminants.

G. Comply with manufacturer's warranty conditions, if any.

H. Cover products subject to deterioration with impervious sheet covering. Provideventilation to prevent condensation and degradation of products.

I. Prevent contact with material that may cause corrosion, discoloration, or staining.

J. Provide equipment and personnel to store products by methods to prevent soiling,disfigurement, or damage.

K. Arrange storage of products to permit access for inspection. Periodically inspect toverify products are undamaged and are maintained in acceptable condition.

END OF SECTION


619453 01 70 00-1

SECTION 01 70 00 - EXECUTION AND CLOSEOUT REQUIREMENTS

PART 1 GENERAL


A. Examination, preparation, and general installation procedures.

B. Requirements for alterations work, including selective demolition, except removal,disposal, and/or remediation of hazardous materials and toxic substances.

C. Cutting and patching.

D. Cleaning and protection.

E. Starting of systems and equipment.

F. Demonstration and instruction of Wicomico County Public Schools personnel.

G. Closeout procedures, including Contractor's Correction Punch List, except paymentprocedures.

H. General requirements for maintenance service.

1.2 SUBMITTALS

A. See Section 01 30 00 - Administrative Requirements, for submittal procedures.

B. Cutting and Patching: Submit written request in advance of cutting or alteration thataffects:1. Structural integrity of any element of Project.2. Integrity of weather exposed or moisture resistant element.3. Efficiency, maintenance, or safety of any operational element.4. Visual qualities of sight exposed elements.5. Work of Wicomico County Public Schools or separate Contractor.

PART 2 PRODUCTS

2.1 PATCHING MATERIALS

A. New Materials: As specified in product sections; match existing products and work forpatching and extending work.

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B. Type and Quality of Existing Products: Determine by inspecting and testing productswhere necessary, referring to existing work as a standard.

C. Product Substitution: For any proposed change in materials, submit request forsubstitution described in Section 01 60 00 - Product Requirements.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that existing site conditions and substrate surfaces are acceptable for subsequentwork. Start of work means acceptance of existing conditions.

B. Verify that existing substrate is capable of structural support or attachment of newwork being applied or attached.

C. Examine and verify specific conditions described in individual specification sections.

D. Take field measurements before confirming product orders or beginning fabrication, tominimize waste due to over-ordering or misfabrication.

E. Verify that utility services are available, of the correct characteristics, and in the correctlocations.

F. Prior to Cutting: Examine existing conditions prior to commencing work, includingelements subject to damage or movement during cutting and patching. Afteruncovering existing work, assess conditions affecting performance of work. Beginningof cutting or patching means acceptance of existing conditions.

3.2 PREPARATION

A. Clean substrate surfaces prior to applying next material or substance.

B. Seal cracks or openings of substrate prior to applying next material or substance.

C. Apply manufacturer required or recommended substrate primer, sealer, or conditionerprior to applying any new material or substance in contact or bond.

3.3 GENERAL INSTALLATION REQUIREMENTS

A. Install products as specified in individual sections, in accordance with manufacturer'sinstructions and recommendations, and so as to avoid waste due to necessity forreplacement.

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B. Make vertical elements plumb and horizontal elements level, unless otherwiseindicated.

C. Install equipment and fittings plumb and level, neatly aligned with adjacent vertical andhorizontal lines, unless otherwise indicated.

D. Make consistent texture on surfaces, with seamless transitions, unless otherwiseindicated.

E. Make neat transitions between different surfaces, maintaining texture and appearance.

3.4 ALTERATIONS

A. Drawings showing existing construction and utilities are based on casual fieldobservation and existing record documents only.1. Verify that construction and utility arrangements are as indicated.2. Report discrepancies to Engineer before disturbing existing installation.3. Beginning of alterations work constitutes acceptance of existing conditions.

B. Maintain weatherproof exterior building enclosure except for interruptions required forreplacement or modifications; take care to prevent water and humidity damage.1. Where openings in exterior enclosure exist, provide construction to make

exterior enclosure weatherproof.2. Insulate existing ducts or pipes that are exposed to outdoor ambient

temperatures by alterations work.

C. Remove existing work as indicated and as required to accomplish new work.1. Remove items indicated on drawings.2. Relocate items indicated on drawings.3. Where new surface finishes are to be applied to existing work, perform removals,

patch, and prepare existing surfaces as required to receive new finish; removeexisting finish if necessary for successful application of new finish.

4. Where new surface finishes are not specified or indicated, patch holes anddamaged surfaces to match adjacent finished surfaces as closely as possible.

D. Services (Including but not limited to HVAC and Electrical): Remove, relocate, andextend existing systems to accommodate new construction.1. Maintain existing active systems that are to remain in operation; maintain access

to equipment and operational components; if necessary, modify installation toallow access or provide access panel.

2. Where existing systems or equipment are not active and Contract Documentsrequire reactivation, put back into operational condition; repair supply,distribution, and equipment as required.

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3. Where existing active systems serve occupied facilities but are to be replacedwith new services, maintain existing systems in service until new systems arecomplete and ready for service.a. Disable existing systems only to make switchovers and connections;

minimize duration of outages.b. Provide temporary connections as required to maintain existing systems in

service.4. Verify that abandoned services serve only abandoned facilities.5. Remove abandoned pipe, ducts, conduits, and equipment, including those above

accessible ceilings; remove back to source of supply where possible, otherwisecap stub and tag with identification; patch holes left by removal using materialsspecified for new construction.

E. Protect existing work to remain.1. Prevent movement of structure; provide shoring and bracing if necessary.2. Perform cutting to accomplish removals neatly and as specified for cutting new

work.3. Repair adjacent construction and finishes damaged during removal work.

F. Adapt existing work to fit new work: Make as neat and smooth transition as possible.

G. Patching: Where the existing surface is not indicated to be refinished, patch to matchthe surface finish that existed prior to cutting. Where the surface is indicated to berefinished, patch so that the substrate is ready for the new finish.

H. Refinish existing surfaces as indicated:1. Where rooms or spaces are indicated to be refinished, refinish all visible existing

surfaces to remain to the specified condition for each material, with a neattransition to adjacent finishes.

2. If mechanical or electrical work is exposed accidentally during the work, re-coverand refinish to match.

I. Clean existing systems and equipment.

J. Remove demolition debris and abandoned items from alterations areas and dispose ofoff-site; do not burn or bury.

K. Do not begin new construction in alterations areas before demolition is complete.

L. Comply with all other applicable requirements of this section.

3.5 CUTTING AND PATCHING

A. Whenever possible, execute the work by methods that avoid cutting or patching.

B. See Alterations article above for additional requirements.

619453 01 70 00-5

C. Perform whatever cutting and patching is necessary to:1. Complete the work.2. Fit products together to integrate with other work.3. Provide openings for penetration of mechanical, electrical, and other services.4. Match work that has been cut to adjacent work.5. Repair areas adjacent to cuts to required condition.6. Repair new work damaged by subsequent work.7. Remove samples of installed work for testing when requested.8. Remove and replace defective and non-complying work.

D. Execute work by methods that avoid damage to other work and that will provideappropriate surfaces to receive patching and finishing. In existing work, minimizedamage and restore to original condition.

E. Employ original installer to perform cutting for weather exposed and moisture resistantelements, and sight exposed surfaces.

F. Cut rigid materials using masonry saw or core drill. Pneumatic tools not allowedwithout prior approval.

G. Restore work with new products in accordance with requirements of ContractDocuments.

H. Fit work air tight to pipes, sleeves, ducts, conduit, and other penetrations throughsurfaces.

I. At penetrations of fire rated walls, partitions, ceiling, or floor construction, completelyseal voids with fire rated material in accordance with Section 07 84 00, to full thicknessof the penetrated element.

J. Patching:1. Finish patched surfaces to match finish that existed prior to patching. On

continuous surfaces, refinish to nearest intersection or natural break. For anassembly, refinish entire unit.

2. Match color, texture, and appearance.3. Repair patched surfaces that are damaged, lifted, discolored, or showing other

imperfections due to patching work. If defects are due to condition of substrate,repair substrate prior to repairing finish.

3.6 PROGRESS CLEANING

A. Maintain areas free of waste materials, debris, and rubbish. Maintain site in a clean andorderly condition.

619453 01 70 00-6

B. Remove debris and rubbish from pipe chases, plenums, attics, crawl spaces, and otherclosed or remote spaces, prior to enclosing the space.

C. Broom and vacuum clean interior areas prior to start of surface finishing, and continuecleaning to eliminate dust.

D. Collect and remove waste materials, debris, and trash/rubbish from site periodicallyand dispose off-site; do not burn or bury.

3.7 PROTECTION OF INSTALLED WORK

A. Protect installed work from damage by construction operations.

B. Provide special protection where specified in individual specification sections.

C. Provide temporary and removable protection for installed products. Control activity inimmediate work area to prevent damage.

D. Provide protective coverings at walls, projections, jambs, sills, and soffits of openings.

E. Protect finished floors, stairs, and other surfaces from traffic, dirt, wear, damage, ormovement of heavy objects, by protecting with durable sheet materials.

F. Prohibit traffic or storage upon waterproofed or roofed surfaces. If traffic or activity isnecessary, obtain recommendations for protection from waterproofing or roofingmaterial manufacturer.

G. Remove protective coverings when no longer needed; reuse or recycle coverings ifpossible.

3.8 SYSTEM STARTUP

A. Coordinate schedule for start-up of various equipment and systems.

B. Verify that each piece of equipment or system has been checked for proper lubrication,drive rotation, belt tension, control sequence, and for conditions that may causedamage.

C. Verify tests, meter readings, and specified electrical characteristics agree with thoserequired by the equipment or system manufacturer.

D. Verify that wiring and support components for equipment are complete and tested.

E. Execute start-up under supervision of applicable Contractor personnel andmanufacturer's representative in accordance with manufacturers' instructions.

619453 01 70 00-7

F. Submit a written report that equipment or system has been properly installed and isfunctioning correctly.

3.9 DEMONSTRATION AND INSTRUCTION

A. Demonstrate start-up, operation, control, adjustment, trouble-shooting, servicing,maintenance, and shutdown of each item of equipment at scheduled time, atequipment location.

B. For equipment or systems requiring seasonal operation, perform demonstration forother season within six months.

C. Provide a qualified person who is knowledgeable about the Project to performdemonstration and instruction of Owner's personnel.

3.10 ADJUSTING

A. Adjust operating products and equipment to ensure smooth and unhindered operation.

3.11 FINAL CLEANING

A. Use cleaning materials that are nonhazardous.

B. Clean interior and exterior glass, surfaces exposed to view; remove temporary labels,stains and foreign substances, polish transparent and glossy surfaces, vacuum carpetedand soft surfaces.

C. Remove all labels that are not permanent. Do not paint or otherwise cover fire testlabels or nameplates on mechanical and electrical equipment.

D. Clean equipment and fixtures to a sanitary condition with cleaning materialsappropriate to the surface and material being cleaned.

E. Clean filters of operating equipment.

F. Clean debris from drainage systems.

G. Clean site; sweep paved areas, rake clean landscaped surfaces.

H. Remove waste, surplus materials, trash/rubbish, and construction facilities from thesite; dispose of in legal manner; do not burn or bury.

619453 01 70 00-8

3.12 CLOSEOUT PROCEDURES

A. Make submittals that are required by governing or other authorities.

B. Accompany Project Coordinator on preliminary inspection to determine items to belisted for completion or correction in the Contractor's Correction Punch List forContractor's Notice of Substantial Completion.

C. Notify Engineer when work is considered ready for Engineer's Substantial Completioninspection.

D. Submit written certification containing Contractor's Correction Punch List, that ContractDocuments have been reviewed, work has been inspected, and that work is complete inaccordance with Contract Documents and ready for Engineer's Substantial Completioninspection.

E. Conduct Substantial Completion inspection and create Final Correction Punch Listcontaining Engineer's and Contractor's comprehensive list of items identified to becompleted or corrected and submit to Engineer.

F. Correct items of work listed in Final Correction Punch List and comply withrequirements for access to Wicomico County Public Schools-occupied areas.

G. Notify Engineer when work is considered finally complete and ready for Engineer'sSubstantial Completion final inspection.

H. Complete items of work determined by Engineer listed in executed Certificate ofSubstantial Completion.

3.13 MAINTENANCE

A. Provide service and maintenance of components indicated in specification sections.

B. Maintenance Period: As indicated in specification sections or, if not indicated, not lessthan one year from the Date of Substantial Completion or the length of the specifiedwarranty, whichever is longer.

C. Examine system components at a frequency consistent with reliable operation. Clean,adjust, and lubricate as required.

D. Include systematic examination, adjustment, and lubrication of components. Repair orreplace parts whenever required. Use parts produced by the manufacturer of theoriginal component.

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E. Maintenance service shall not be assigned or transferred to any agent or subcontractorwithout prior written consent of the Wicomico County Public Schools.

END OF SECTION


619453 01 78 00-1

SECTION 01 78 00 - CLOSEOUT SUBMITTALS

PART 1 GENERAL


A. Project Record Documents.

B. Operation and Maintenance Data.

C. Warranties and bonds.

1.2 SUBMITTALS

A. Project Record Documents: Submit documents to Engineer with claim for finalApplication for Payment.

B. Operation and Maintenance Data:1. Submit two copies of preliminary draft or proposed formats and outlines of

contents before start of Work. Engineer will review draft and return one copywith comments.

2. For equipment, or component parts of equipment put into service duringconstruction and operated by Wicomico County Public Schools, submitcompleted documents within ten days after acceptance.

3. Submit one copy of completed documents 15 days prior to final inspection. Thiscopy will be reviewed and returned after final inspection, with Engineercomments. Revise content of all document sets as required prior to finalsubmission.

4. Submit two sets of revised final documents in final form within 10 days after finalinspection.

C. Warranties and Bonds:1. For equipment or component parts of equipment put into service during

construction with Wicomico County Public Schools's permission, submitdocuments within 10 days after acceptance.

2. Make other submittals within 10 days after Date of Substantial Completion, priorto final Application for Payment.

3. For items of Work for which acceptance is delayed beyond Date of SubstantialCompletion, submit within 10 days after acceptance, listing the date ofacceptance as the beginning of the warranty period.

619453 01 78 00-2


PART 3 EXECUTION

3.1 PROJECT RECORD DOCUMENTS

A. Maintain on site one set of the following record documents; record actual revisions tothe Work:1. Drawings.2. Specifications.3. Addenda.4. Change Orders and other modifications to the Contract.5. Reviewed shop drawings, product data, and samples.6. Manufacturer's instruction for assembly, installation, and adjusting.

B. Ensure entries are complete and accurate, enabling future reference by WicomicoCounty Public Schools.

C. Store record documents separate from documents used for construction.

D. Record information concurrent with construction progress.

E. Specifications: Legibly mark and record at each product section description of actualproducts installed, including the following:1. Changes made by Addenda and modifications.

F. Record Drawings and Shop Drawings: Legibly mark each item to record actualconstruction including:1. Field changes of dimension and detail.2. Details not on original Contract drawings.

3.2 OPERATION AND MAINTENANCE DATA

A. Source Data: For each product or system, list names, addresses and telephonenumbers of Subcontractors and suppliers, including local source of supplies andreplacement parts.

B. Product Data: Mark each sheet to clearly identify specific products and componentparts, and data applicable to installation. Delete inapplicable information.

C. Drawings: Supplement product data to illustrate relations of component parts ofequipment and systems, to show control and flow diagrams.

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D. Typed Text: As required to supplement product data. Provide logical sequence ofinstructions for each procedure, incorporating manufacturer's instructions.

3.3 OPERATION AND MAINTENANCE DATA FOR MATERIALS AND FINISHES

A. For Each Product, Applied Material, and Finish:1. Product data, with catalog number, size, composition, and color and texture

designations.

B. Instructions for Care and Maintenance: Manufacturer's recommendations for cleaningagents and methods, precautions against detrimental cleaning agents and methods, andrecommended schedule for cleaning and maintenance.

C. Where additional instructions are required, beyond the manufacturer's standardprinted instructions, have instructions prepared by personnel experienced in theoperation and maintenance of the specific products.

3.4 OPERATION AND MAINTENANCE DATA FOR EQUIPMENT AND SYSTEMS

A. For Each Item of Equipment and Each System:1. Description of unit or system, and component parts.2. Identify function, normal operating characteristics, and limiting conditions.3. Include performance curves, with engineering data and tests.4. Complete nomenclature and model number of replaceable parts.

B. Where additional instructions are required, beyond the manufacturer's standardprinted instructions, have instructions prepared by personnel experienced in theoperation and maintenance of the specific products.

C. Panelboard Circuit Directories: Provide electrical service characteristics, controls, andcommunications; typed.

D. Operating Procedures: Include start-up, break-in, and routine normal operatinginstructions and sequences. Include regulation, control, stopping, shut-down, andemergency instructions. Include summer, winter, and any special operatinginstructions.

E. Maintenance Requirements: Include routine procedures and guide for preventativemaintenance and trouble shooting; disassembly, repair, and reassembly instructions;and alignment, adjusting, balancing, and checking instructions.

F. Provide servicing and lubrication schedule, and list of lubricants required.

G. Include manufacturer's printed operation and maintenance instructions.

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H. Include sequence of operation by controls manufacturer.

I. Provide original manufacturer's parts list, illustrations, assembly drawings, and diagramsrequired for maintenance.

J. Additional Requirements: As specified in individual product specification sections.

3.5 ASSEMBLY OF OPERATION AND MAINTENANCE MANUALS

A. Assemble operation and maintenance data into durable manuals for Wicomico CountyPublic Schools's personnel use, with data arranged in the same sequence as, andidentified by, the specification sections.

B. Where systems involve more than one specification section, provide separate tabbeddivider for each system.

C. Binders: Commercial quality, 8-1/2 by 11 inch three D side ring binders with durableplastic covers; 2 inch maximum ring size. When multiple binders are used, correlatedata into related consistent groupings.

D. Cover: Identify each binder with typed or printed title OPERATION AND MAINTENANCEINSTRUCTIONS; identify title of Project; identify subject matter of contents.

E. Project Directory: Title and address of Project; names, addresses, and telephonenumbers of Engineer, Consultants, Contractor and subcontractors, with names ofresponsible parties.

F. Tables of Contents: List every item separated by a divider, using the same identificationas on the divider tab; where multiple volumes are required, include all volumes Tablesof Contents in each volume, with the current volume clearly identified.

G. Dividers: Provide tabbed dividers for each separate product and system; identify thecontents on the divider tab; immediately following the divider tab include a descriptionof product and major component parts of equipment.

3.6 WARRANTIES AND BONDS

A. Obtain warranties and bonds, executed in duplicate by responsible Subcontractors,suppliers, and manufacturers, within 10 days after completion of the applicable item ofwork. Except for items put into use with Wicomico County Public Schools's permission,leave date of beginning of time of warranty until Date of Substantial completion isdetermined.

B. Verify that documents are in proper form, contain full information, and are notarized.

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C. Co-execute submittals when required.

D. Retain warranties and bonds until time specified for submittal.

END OF SECTION

DIVISION 22 - PLUMBING

619453 22 10 05-1

SECTION 22 10 05 - PLUMBING PIPING

PART 1 GENERAL


A. Pipe, pipe fittings, specialties, and connections for piping systems.1. Pipe hangers and supports.2. Valves.3. Flow controls.4. Check.

1.2 REFERENCE STANDARDS

A. ANSI Z223.1 - National Fuel Gas Code; 2015.

B. ASME B16.3 - Malleable Iron Threaded Fittings: Classes 150 and 300; 2016.

C. ASME B31.9 - Building Services Piping; 2014.

D. ASTM A53/A53M - Standard Specification for Pipe, Steel, Black and Hot-Dipped,Zinc-Coated, Welded and Seamless; 2012.

E. ASTM A123/A123M - Standard Specification for Zinc (Hot-Dip Galvanized) Coatings onIron and Steel Products; 2015.

F. MSS SP-58 - Pipe Hangers and Supports - Materials, Design, Manufacture, Selection,Application, and Installation; 2009.

G. MSS SP-67 - Butterfly Valves; 2011.

H. MSS SP-110 - Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and FlaredEnds; 2010.

1.3 SUBMITTALS

A. Product Data: Provide data on pipe materials, pipe fittings, valves, and accessories. Provide manufacturers catalog information. Indicate valve data and ratings.

B. Welder Certificate: Include welders certification of compliance with ASME BPVC-IX.

C. Shop Drawings: For non-penetrating rooftop supports, submit detailed layoutdeveloped for this project, with design calculations for loadings and spacings.

619453 22 10 05-2

D. Project Record Documents: Record actual locations of valves.

E. Maintenance Materials: Furnish the following for Wicomico County Public Schools's usein maintenance of project.1. Valve Repacking Kits: One for each type and size of valve.

1.4 QUALITY ASSURANCE

A. Perform work in accordance with applicable codes.

B. Valves: Manufacturer's name and pressure rating marked on valve body.

C. Welding Materials and Procedures: Comply with ASME BPVC-IX and applicable statelabor regulations.

D. Welder Qualifications: Certified in accordance with ASME BPVC-IX.

E. Identify pipe with marking including size, ASTM material classification, ASTMspecification, potable water certification, water pressure rating.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Accept valves on site in shipping containers with labeling in place. Inspect for damage.

B. Provide temporary protective coating on cast iron and steel valves.

C. Provide temporary end caps and closures on piping and fittings. Maintain in place untilinstallation.

D. Protect piping systems from entry of foreign materials by temporary covers, completingsections of the work, and isolating parts of completed system.

1.6 FIELD CONDITIONS

A. Do not install underground piping when bedding is wet or frozen.

PART 2 PRODUCTS


A. Potable Water Supply Systems: Provide piping, pipe fittings, and solder and flux (ifused), that comply with NSF 61 and NSF 372 for maximum lead content; label pipe andfittings.

619453 22 10 05-3

2.2 GAS PIPING, ABOVE GRADE

A. Steel Pipe: ASTM A53/A53M Schedule 40 black.1. Fittings: ASME B16.3, malleable iron, or ASTM A234/A234M, wrought steel

welding type.2. Joints: Threaded or welded to ASME B31.1.

2.3 FLANGES, UNIONS, AND COUPLINGS

A. Unions for Pipe Sizes 3 Inches and Under:1. Ferrous pipe: Class 150 malleable iron threaded unions.

B. Flanges for Pipe Size Over 1 Inch:1. Ferrous Pipe: Class 150 malleable iron threaded or forged steel slip-on flanges;

preformed neoprene gaskets.

2.4 PIPE HANGERS AND SUPPORTS

A. Provide hangers and supports that comply with MSS SP-58.1. If type of hanger or support for a particular situation is not indicated, select

appropriate type using MSS SP-58 recommendations.2. Overhead Supports: Individual steel rod hangers attached to structure or to

trapeze hangers.3. Trapeze Hangers: Welded steel channel frames attached to structure.4. Vertical Pipe Support: Steel riser clamp.5. Rooftop Supports for Low-Slope Roofs: Steel pedestals with bases that rest on

top of roofing membrane, not requiring any attachment to the roof structure andnot penetrating the roofing assembly, with support fixtures as specified; and asfollows:a. Bases: High density polypropylene.b. Base Sizes: As required to distribute load sufficiently to prevent

indentation of roofing assembly.c. Steel Components: Stainless steel, or carbon steel hot-dip galvanized after

fabrication in accordance with ASTM A123/A123M.d. Attachment/Support Fixtures: As recommended by manufacturer, same

type as indicated for equivalent indoor hangers and supports; corrosionresistant material.

e. Height: Provide minimum clearance of 6 inches under pipe to top ofroofing.

2.5 BALL VALVES

A. Construction, 4 Inches and Smaller: MSS SP-110, Class 150, 400 psi CWP, bronze orductile iron body, 304 stainless steel or chrome plated brass ball, regular port, teflon

619453 22 10 05-4

seats and stuffing box ring, blow-out proof stem, lever handle with balancing stops,threaded or grooved ends with union.

2.6 BUTTERFLY VALVES

A. Construction 1-1/2 Inches and Larger: MSS SP-67, 200 psi CWP, cast or ductile ironbody, nickel-plated ductile iron disc, resilient replaceable EPDM seat, wafer ends,extended neck, 10 position lever handle.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that excavations are to required grade, dry, and not over-excavated.

3.2 PREPARATION

A. Remove scale and dirt, on inside and outside, before assembly.

B. Prepare piping connections to equipment with flanges or unions.

3.3 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Provide non-conducting dielectric connections wherever jointing dissimilar metals.

C. Route piping in orderly manner and maintain gradient. Route parallel andperpendicular to walls.

D. Provide access where valves and fittings are not exposed.

E. Pipe Hangers and Supports:1. Install in accordance with ASME B31.9.2. Install hangers to provide minimum 1/2 inch space between finished covering

and adjacent work.3. Place hangers within 12 inches of each horizontal elbow.4. Use hangers with 1-1/2 inch minimum vertical adjustment. Design hangers for

pipe movement without disengagement of supported pipe.5. Where several pipes can be installed in parallel and at same elevation, provide

multiple or trapeze hangers.6. Prime coat exposed steel hangers and supports. Hangers and supports located in

crawl spaces, pipe shafts, and suspended ceiling spaces are not consideredexposed.

7. Support cast iron drainage piping at every joint.

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F. When installing more than one piping system material, ensure system components arecompatible and joined to ensure the integrity of the system. Provide necessary joiningfittings. Ensure flanges, union, and couplings for servicing are consistently provided.

3.4 APPLICATION

A. Install gate valves for shut-off and to isolate equipment, part of systems, or verticalrisers.

END OF SECTION

DIVISION 23 - HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC)

619453 23 05 53-1

SECTION 23 05 53 - IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

PART 1 GENERAL


A. Nameplates.

B. Tags.

C. Adhesive-backed duct markers.

D. Pipe markers.

E. Ceiling tacks.


A. ASME A13.1 - Scheme for the Identification of Piping Systems; 2015.

B. ASTM D709 - Standard Specification for Laminated Thermosetting Materials; 2016.

1.3 SUBMITTALS

A. List: Submit list of wording, symbols, letter size, and color coding for mechanicalidentification.

B. Chart and Schedule: Submit valve chart and schedule, including valve tag number,location, function, and valve manufacturer's name and model number.

C. Product Data: Provide manufacturers catalog literature for each product required.

D. Manufacturer's Installation Instructions: Indicate special procedures, and installation.

PART 2 PRODUCTS

2.1 IDENTIFICATION APPLICATIONS

A. Air Handling Units: Nameplates.

B. Air Terminal Units: Tags.

C. Control Panels: Nameplates.

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D. Dampers: Ceiling tacks, where located above lay-in ceiling.

E. Ductwork: Adhesive backed duct marker.

F. Instrumentation: Tags.

G. Major Control Components: Nameplates.

H. Piping: Pipe markers.

I. Pumps: Nameplates.

J. Small-sized Equipment: Tags.

K. Thermostats: Nameplates.

L. Valves: Tags and ceiling tacks where located above lay-in ceiling.

2.2 NAMEPLATES

A. Letter Color: White.

B. Letter Height: 1/4 inch.

C. Background Color: Red.

D. Plastic: Comply with ASTM D709.

2.3 TAGS

A. Metal Tags: Brass with stamped letters; tag size minimum 1-1/2 inch diameter withsmooth edges.

B. Valve Tag Chart: Typewritten letter size list in anodized aluminum frame.

2.4 ADHESIVE-BACKED DUCT MARKERS

A. Material: High gloss acrylic adhesive-backed vinyl film 0.0032 inch; printed with UV andchemical resistant inks.

B. Style: Individual Label.

C. Color: Yellow/Black.

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2.5 PIPE MARKERS

A. Color: Comply with ASME A13.1.

B. Plastic Tape Pipe Markers: Flexible, vinyl film tape with pressure sensitive adhesivebacking and printed markings.

C. Color code as follows:1. Heating, Cooling, and Boiler Feedwater: Green with white letters.

2.6 CEILING TACKS

A. Description: Steel with 3/4 inch diameter color coded head.

B. Color code as follows:1. HVAC Equipment: Yellow.2. Heating/Cooling Valves: Blue.

PART 3 EXECUTION

3.1 PREPARATION

A. Degrease and clean surfaces to receive adhesive for identification materials.

3.2 INSTALLATION

A. Install nameplates with corrosive-resistant mechanical fasteners, or adhesive. Applywith sufficient adhesive to ensure permanent adhesion and seal with clear lacquer.

B. Install tags with corrosion resistant chain.

C. Install plastic tape pipe markers complete around pipe in accordance withmanufacturer's instructions.

D. Use tags on piping 3/4 inch diameter and smaller. 1. Identify service, flow direction, and pressure.2. Install in clear view and align with axis of piping.3. Locate identification not to exceed 20 feet on straight runs including risers and

drops, adjacent to each valve and Tee, at each side of penetration of structure orenclosure, and at each obstruction.

E. Install ductwork with adhesive backed duct marker. Identify with air handling unitidentification number and area served. Locate identification at air handling unit, ateach side of penetration of structure or enclosure, and at each obstruction.

619453 23 05 53-4

F. Locate ceiling tacks to locate valves or dampers above lay-in panel ceilings. Locate incorner of panel closest to equipment.

END OF SECTION


619453 23 05 93-1

SECTION 23 05 93 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

PART 1 GENERAL


A. Testing, adjustment, and balancing of air systems.

B. Testing, adjustment, and balancing of hydronic systems.

C. Measurement of final operating condition of HVAC systems.

D. Commissioning activities.

1.2 RELATED REQUIREMENTS

A. Section 23 08 00 - Commissioning of HVAC.


A. AABC (NSTSB) - AABC National Standards for Total System Balance, 7th Edition; 2016.

B. ASHRAE Std 111 - Measurement, Testing, Adjusting, and Balancing of Building HVACSystems; 2008.

C. SMACNA (TAB) - HVAC Systems Testing, Adjusting and Balancing; 2002.

1.4 SUBMITTALS

A. Installer Qualifications: Submit name of adjusting and balancing agency and TABsupervisor for approval within 30 days after award of Contract.

B. TAB Plan: Submit a written plan indicating the testing, adjusting, and balancingstandard to be followed and the specific approach for each system and component.1. Submit to Engineer.2. Submit to the Commissioning Authority.3. Submit six weeks prior to starting the testing, adjusting, and balancing work.4. Include certification that the plan developer has reviewed Contract Documents,

the equipment and systems, and the control system with the Engineer and otherinstallers to sufficiently understand the design intent for each system.

5. Include at least the following in the plan:a. Preface: An explanation of the intended use of the control system.

619453 23 05 93-2

b. List of all air flow, water flow, sound level, system capacity and efficiencymeasurements to be performed and a description of specific testprocedures, parameters, formulas to be used.

c. Copy of field checkout sheets and logs to be used, listing each piece ofequipment to be tested, adjusted and balanced with the data cells to begathered for each.

d. Identification and types of measurement instruments to be used and theirmost recent calibration date.

e. Discussion of what notations and markings will be made on the duct andpiping drawings during the process.

f. Final test report forms to be used.g. Detailed step-by-step procedures for TAB work for each system and issue,

including:1) Terminal flow calibration (for each terminal type).2) Diffuser proportioning.3) Branch/submain proportioning.4) Total flow calculations.5) Rechecking.6) Diversity issues.

h. Expected problems and solutions, etc.i. Criteria for using air flow straighteners or relocating flow stations and

sensors.j. Details of how TOTAL flow will be determined; for example:

1) Air: Sum of terminal flows via control system calibrated readings orvia hood readings of all terminals, supply (SA) and return air (RA)pitot traverse, SA or RA flow stations.

2) Water: Pump curves, circuit setter, flow station, ultrasonic, etc.k. Confirmation of understanding of the outside air ventilation criteria under

all conditions.l. Method of checking building static and exhaust fan and/or relief damper

capacity.m. Proposed selection points for sound measurements and sound

measurement methods.n. Procedures for field technician logs of discrepancies, deficient or

uncompleted work by others, contract interpretation requests and lists ofcompleted tests (scope and frequency).

o. Procedures for formal deficiency reports, including scope, frequency anddistribution.

C. Field Logs: Submit at least twice a week to the Commissioning Authority.

D. Control System Coordination Reports: Communicate in writing to the controls installerall setpoint and parameter changes made or problems and discrepancies identifiedduring TAB that affect, or could affect, the control system setup and operation.

619453 23 05 93-3

E. Final Report: Indicate deficiencies in systems that would prevent proper testing,adjusting, and balancing of systems and equipment to achieve specified performance.1. Submit to the the Commissioning Authority within two weeks after completion of

testing, adjusting, and balancing.2. Revise TAB plan to reflect actual procedures and submit as part of final report.3. Submit draft copies of report for review prior to final acceptance of Project.

Provide final copies for Engineer and for inclusion in operating and maintenancemanuals.

4. Include actual instrument list, with manufacturer name, serial number, and dateof calibration.

5. Form of Test Reports: Where the TAB standard being followed recommends areport format use that; otherwise, follow ASHRAE Std 111.

6. Units of Measure: Report data in I-P (inch-pound) units only.7. Include the following on the title page of each report:

a. Name of Testing, Adjusting, and Balancing Agency.b. Address of Testing, Adjusting, and Balancing Agency.c. Telephone number of Testing, Adjusting, and Balancing Agency.d. Project name.e. Project location.f. Project Engineer.g. Project Engineer.h. Project Contractor.i. Project altitude.j. Report date.


PART 3 EXECUTION


A. Perform total system balance in accordance with one of the following:1. AABC (NSTSB), AABC National Standards for Total System Balance.2. SMACNA (TAB).3. Maintain at least one copy of the standard to be used at project site at all times.

B. Begin work after completion of systems to be tested, adjusted, or balanced andcomplete work prior to Substantial Completion of the project.

C. Where HVAC systems and/or components interface with life safety systems, includingfire and smoke detection, alarm, and control, coordinate scheduling and testing andinspection procedures with the authorities having jurisdiction.

D. TAB Agency Qualifications:

619453 23 05 93-4

1. Company specializing in the testing, adjusting, and balancing of systems specifiedin this section.

2. Having minimum of three years documented experience.3. Certified by one of the following:

a. AABC, Associated Air Balance Council: www.aabc.com/#sle; uponcompletion submit AABC National Performance Guaranty.

b. TABB, The Testing, Adjusting, and Balancing Bureau of National EnergyManagement Institute: www.tabbcertified.org/#sle.

E. TAB Supervisor and Technician Qualifications: Certified by same organization as TABagency.

3.2 EXAMINATION

A. Verify that systems are complete and operable before commencing work. Ensure thefollowing conditions:1. Systems are started and operating in a safe and normal condition.2. Temperature control systems are installed complete and operable.3. Proper thermal overload protection is in place for electrical equipment.4. Final filters are clean and in place. If required, install temporary media in

addition to final filters.5. Duct systems are clean of debris.6. Fans are rotating correctly.7. Fire and volume dampers are in place and open.8. Air coil fins are cleaned and combed.9. Access doors are closed and duct end caps are in place.10. Air outlets are installed and connected.11. Duct system leakage is minimized.12. Hydronic systems are flushed, filled, and vented.13. Pumps are rotating correctly.14. Proper strainer baskets are clean and in place.15. Service and balance valves are open.

B. Submit field reports. Report defects and deficiencies that will or could prevent propersystem balance.

C. Beginning of work means acceptance of existing conditions.

3.3 PREPARATION

A. Hold a pre-balancing meeting at least one week prior to starting TAB work.1. Require attendance by all installers whose work will be tested, adjusted, or

balanced.

B. Provide instruments required for testing, adjusting, and balancing operations. Makeinstruments available to Engineer to facilitate spot checks during testing.

619453 23 05 93-5

C. Provide additional balancing devices as required.

3.4 ADJUSTMENT TOLERANCES

A. Air Handling Systems: Adjust to within plus or minus 10 percent of design for supplysystems and plus or minus 10 percent of design for return and exhaust systems.

B. Air Outlets and Inlets: Adjust total to within plus 10 percent and minus 10 percent ofdesign to space. Adjust outlets and inlets in space to within plus or minus 10 percent ofdesign.

C. Hydronic Systems: Adjust to within plus or minus 10 percent of design.

3.5 RECORDING AND ADJUSTING

A. Field Logs: Maintain written logs including:1. Running log of events and issues.2. Discrepancies, deficient or uncompleted work by others.3. Contract interpretation requests.4. Lists of completed tests.

B. Ensure recorded data represents actual measured or observed conditions.

C. Permanently mark settings of valves, dampers, and other adjustment devices allowingsettings to be restored. Set and lock memory stops.

D. After adjustment, take measurements to verify balance has not been disrupted or thatsuch disruption has been rectified.

E. Leave systems in proper working order, replacing belt guards, closing access doors,closing doors to electrical switch boxes, and restoring thermostats to specified settings.

F. At final inspection, recheck random selections of data recorded in report. Recheckpoints or areas as selected and witnessed by the Wicomico County Public Schools.

G. Check and adjust systems approximately six months after final acceptance and submitreport.

3.6 AIR SYSTEM PROCEDURE

A. Adjust air handling and distribution systems to provide required or design supply,return, and exhaust air quantities.

B. Make air quantity measurements in ducts by Pitot tube traverse of entire crosssectional area of duct.

619453 23 05 93-6

C. Measure air quantities at air inlets and outlets.

D. Adjust distribution system to obtain uniform space temperatures free fromobjectionable drafts and noise.

E. Use volume control devices to regulate air quantities only to extend that adjustmentsdo not create objectionable air motion or sound levels. Effect volume control by ductinternal devices such as dampers and splitters.

F. Provide system schematic with required and actual air quantities recorded at eachoutlet or inlet.

G. Measure static air pressure conditions on air supply units, including filter and coilpressure drops, and total pressure across the fan. Make allowances for 50 percentloading of filters.

H. Adjust outside air automatic dampers, outside air, return air, and exhaust dampers fordesign conditions.

I. Measure temperature conditions across outside air, return air, and exhaust dampers tocheck leakage.

J. Measure building static pressure and adjust supply, return, and exhaust air systems toprovide required relationship between each to maintain approximately 0.05 inchespositive static pressure near the building entries.

3.7 WATER SYSTEM PROCEDURE

A. Adjust water systems to provide required or design quantities.

B. Use calibrated Venturi tubes, orifices, or other metered fittings and pressure gages todetermine flow rates for system balance. Where flow metering devices are notinstalled, base flow balance on temperature difference across various heat transferelements in the system.

C. Adjust systems to provide specified pressure drops and flows through heat transferelements prior to thermal testing. Perform balancing by measurement of temperaturedifferential in conjunction with air balancing.

D. Effect adjustment of water distribution systems by means of balancing cocks, valves,and fittings. Do not use service or shut-off valves for balancing unless indexed forbalance point.

619453 23 05 93-7

3.8 COMMISSIONING

A. Perform prerequisites prior to starting commissioning activities.

B. Fill out Prefunctional Checklists for:1. Air side systems.2. Water side systems.

C. Furnish to the Commissioning Authority, upon request, any data gathered but notshown in the final TAB report.

D. Re-check a random sample equivalent to 100 percent of the final TAB report data asdirected by Commissioning Authority.1. Original TAB agency shall execute the re-checks, witnessed by the Commissioning

Authority. 2. Use the same test instruments as used in the original TAB work.3. Failure of more than 10 percent of the re-checked items of a given system shall

result in the rejection of the system TAB report; rebalance the system, provide anew system TAB report, and repeat random re-checks.

4. For purposes of re-check, failure is defined as follows: a. Air Flow of Supply and Return: Deviation of more than 10 percent of

instrument reading.b. Minimum Outside Air Flow: Deviation of more than 20 percent of

instrument reading; for inlet vane or VFD OSA compensation system usinglinear proportional control, deviation of more than 30 percent atintermediate supply flow.

c. Air and Water Pressures: Deviation of more than 10 percent of full scale oftest instrument reading.

d. Sound Pressures: Deviation of more than 3 decibels, with considerationfor variations in background noise.

5. For purposes of re-check, a whole system is defined as one in which inaccuracieswill have little or no impact on connected systems; for example, the airdistribution system served by one air handler or the hydronic chilled water supplysystem served by a chiller or the condenser water system.

E. In the presence of the Commissioning Authority, verify that:1. Final settings of all valves, splitters, dampers and other adjustment devices have

been permanently marked.2. The air system is being controlled to the lowest possible static pressure while still

meeting design loads, less diversity; this shall include a review of TAB methods,established control setpoints, and physical verification of at least one leg fromfan to diffuser having all balancing dampers wide open and that during fullcooling of all terminal units taking off downstream of the static pressure sensor,the terminal unit on the critical leg has its damper 90 percent or more open.

619453 23 05 93-8

3. The water system is being controlled to the lowest possible pressure while stillmeeting design loads, less diversity; this shall include a review of TAB methods,established control setpoints, and physical verification of at least one leg fromthe pump to the coil having all balancing valves wide open and that during fullcooling the cooling coil valve of that leg is 90 percent or more open.

F. No further monitoring is required.

G. No deferred testing is required.

3.9 SCOPE

A. Test, adjust, and balance the following:1. Boiler Feedwater Pumps.2. HVAC Pumps.3. Packaged Steel Water Tube Boilers.4. Air Cooled Water Chillers.5. Packaged Terminal Air Conditioning Units.6. Air Handling Units.7. Air Inlets and Outlets.

3.10 MINIMUM DATA TO BE REPORTED

A. Pumps:1. Identification/number.2. Manufacturer.3. Size/model.4. Service.5. Design flow rate, pressure drop, BHP.6. Actual flow rate, pressure drop, BHP.7. Discharge pressure.8. Suction pressure.9. Total operating head pressure.

B. Combustion Equipment:1. Boiler manufacturer.2. Model number.3. Serial number.4. Heat input.5. Percent combustion efficiency.6. Heat output.

C. Chillers: 1. Identification/number.2. Manufacturer.

619453 23 05 93-9

3. Capacity.4. Model number.5. Serial number.6. Evaporator entering water temperature, design and actual.7. Evaporator leaving water temperature, design and actual.8. Evaporator pressure drop, design and actual.9. Evaporator water flow rate, design and actual.10. Condenser entering water temperature, design and actual.11. Condenser pressure drop, design and actual.12. Condenser water flow rate, design and actual.

D. Terminal Unit Data:1. Manufacturer.2. Identification/number.3. Location.4. Model number.5. Size.6. Minimum design air flow.7. Maximum design air flow.8. Maximum actual air flow.

E. Air Distribution Tests:1. Room number/location.2. Design air flow.3. Test (final) air flow.4. Percent of design air flow.

END OF SECTION


619453 23 07 13-1

SECTION 23 07 13 - DUCT INSULATION

PART 1 GENERAL


A. Duct insulation.


A. ASTM C518 - Standard Test Method for Steady-State Thermal Transmission Propertiesby Means of the Heat Flow Meter Apparatus; 2015.

B. ASTM C553 - Standard Specification for Mineral Fiber Blanket Thermal Insulation forCommercial and Industrial Applications; 2013.

C. ASTM E84 - Standard Test Method for Surface Burning Characteristics of BuildingMaterials; 2016.

D. ASTM E96/E96M - Standard Test Methods for Water Vapor Transmission of Materials;2016.

E. UL 723 - Standard for Test for Surface Burning Characteristics of Building Materials;Current Edition, Including All Revisions.

1.3 SUBMITTALS

A. Product Data: Provide product description, thermal characteristics, list of materials andthickness for each service, and locations.

B. Manufacturer's Instructions: Indicate installation procedures necessary to ensureacceptable workmanship and that installation standards will be achieved.


A. Manufacturer Qualifications: Company specializing in manufacturing products of thetype specified in this section with not less than three years of documented experience.

B. Applicator Qualifications: Company specializing in performing the type of workspecified in this section, with minimum three years of experience and approved bymanufacturer.

619453 23 07 13-2


A. Accept materials on site in original factory packaging, labelled with manufacturer'sidentification, including product density and thickness.

B. Protect insulation from weather and construction traffic, dirt, water, chemical, andmechanical damage, by storing in original wrapping.


A. Maintain ambient temperatures and conditions required by manufacturers ofadhesives, mastics, and insulation cements.

B. Maintain temperature during and after installation for minimum period of 24 hours.

PART 2 PRODUCTS

2.1 REGULATORY REQUIREMENTS

A. Surface Burning Characteristics: Flame spread index/Smoke developed index of 25/50,maximum, when tested in accordance with ASTM E84 or UL 723.

2.2 GLASS FIBER, FLEXIBLE

A. Manufacturer:

B. Insulation: ASTM C553; flexible, noncombustible blanket.1. K value: 0.36 at 75 degrees F, when tested in accordance with ASTM C518.2. Maximum Service Temperature: 1200 degrees F.3. Maximum Water Vapor Absorption: 5.0 percent by weight.

C. Vapor Barrier Jacket:1. Kraft paper with glass fiber yarn and bonded to aluminized film.2. Moisture Vapor Permeability: 0.02 perm inch, when tested in accordance with

ASTM E96/E96M.3. Secure with pressure sensitive tape.

D. Vapor Barrier Tape:1. Kraft paper reinforced with glass fiber yarn and bonded to aluminized film, with

pressure sensitive rubber based adhesive.

E. Tie Wire: Annealed steel, 16 gage, 0.0508 inch diameter.

https://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20E96/E96M






619453 23 07 13-3

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that ducts have been tested before applying insulation materials.

B. Verify that surfaces are clean, foreign material removed, and dry.

3.2 INSTALLATION


B. Install in accordance with NAIMA National Insulation Standards.

C. Insulated ducts conveying air below ambient temperature:1. Provide insulation with vapor barrier jackets.2. Finish with tape and vapor barrier jacket.3. Continue insulation through walls, sleeves, hangers, and other duct penetrations.4. Insulate entire system including fittings, joints, flanges, fire dampers, flexible

connections, and expansion joints.

D. Insulated ducts conveying air above ambient temperature:1. Provide with or without standard vapor barrier jacket.2. Insulate fittings and joints. Where service access is required, bevel and seal ends

of insulation.

E. External Duct Insulation Application:1. Secure insulation with vapor barrier with wires and seal jacket joints with vapor

barrier adhesive or tape to match jacket.2. Secure insulation without vapor barrier with staples, tape, or wires.3. Install without sag on underside of duct. Use adhesive or mechanical fasteners

where necessary to prevent sagging. Lift duct off trapeze hangers and insertspacers.

4. Seal vapor barrier penetrations by mechanical fasteners with vapor barrieradhesive.

5. Stop and point insulation around access doors and damper operators to allowoperation without disturbing wrapping.

3.3 SCHEDULES

A. Outside Air Intake Ducts: 2 inch thick external duct wrap.

B. Supply Ducts: 1 inch thick external duct wrap.

































619453 23 07 13-4

C. Return Ducts: 1 inch thick external duct wrap.

END OF SECTION





619453 23 07 19-1

SECTION 23 07 19 - HVAC PIPING INSULATION

PART 1 GENERAL


A. Piping insulation.

B. Flexible removable and reusable blanket insulation.

C. Jackets and accessories.


A. ASTM A666 - Standard Specification for Annealed or Cold-Worked Austenitic StainlessSteel Sheet, Strip, Plate, and Flat Bar; 2015.

B. ASTM C177 - Standard Test Method for Steady-State Heat Flux Measurements andThermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus; 2013.

C. ASTM C534/C534M - Standard Specification for Preformed Flexible Elastomeric CellularThermal Insulation in Sheet and Tubular Form; 2016.

D. ASTM C547 - Standard Specification for Mineral Fiber Pipe Insulation; 2015.

E. ASTM C795 - Standard Specification for Thermal Insulation for Use in Contact withAustenitic Stainless Steel; 2008 (Reapproved 2013).

F. ASTM E84 - Standard Test Method for Surface Burning Characteristics of BuildingMaterials; 2016.

G. ASTM E96/E96M - Standard Test Methods for Water Vapor Transmission of Materials;2016.

H. UL 723 - Standard for Test for Surface Burning Characteristics of Building Materials;Current Edition, Including All Revisions.

1.3 SUBMITTALS

A. Product Data: Provide product description, thermal characteristics, list of materials andthickness for each service, and locations.

B. Manufacturer's Instructions: Indicate installation procedures that ensure acceptableworkmanship and installation standards will be achieved.

619453 23 07 19-2


A. Manufacturer Qualifications: Company specializing in manufacturing the Productsspecified in this section with not less than three years of documented experience.

B. Applicator Qualifications: Company specializing in performing the type of workspecified in this section with minimum three years of experience.


A. Accept materials on site, labeled with manufacturer's identification, product density,and thickness.


A. Maintain ambient conditions required by manufacturers of each product.

B. Maintain temperature before, during, and after installation for minimum of 24 hours.

PART 2 PRODUCTS

2.1 REGULATORY REQUIREMENTS

A. Surface Burning Characteristics: Flame spread index/Smoke developed index of 25/50,maximum, when tested in accordance with ASTM E84 or UL 723.

2.2 GLASS FIBER, RIGID

A. Insulation: ASTM C547 and ASTM C795; rigid molded, noncombustible, with wickingmaterial to transport condensed water to the outside of the system for evaporation tothe atmosphere.1. K Value: ASTM C177, 0.23 at 75 degrees F.2. Maximum Service Temperature: 220 degrees F.3. Maximum Moisture Absorption: 0.2 percent by volume.

B. Vapor Barrier Jacket: White kraft paper with glass fiber yarn, bonded to aluminizedfilm; moisture vapor transmission when tested in accordance with ASTM E96/E96M of0.02 perm-inches.

2.3 FLEXIBLE ELASTOMERIC CELLULAR INSULATION

A. Insulation: Preformed flexible elastomeric cellular rubber insulation complying withASTM C534/C534M Grade 1; use molded tubular material wherever possible.1. Minimum Service Temperature: Minus 40 degrees F.

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20C534/C534M


619453 23 07 19-3

2. Maximum Service Temperature: 220 degrees F.3. Connection: Waterproof vapor barrier adhesive.

B. Elastomeric Foam Adhesive: Air dried, contact adhesive, compatible with insulation.

2.4 JACKETS

A. PVC Plastic.1. Jacket: One piece molded type fitting covers and sheet material, off-white color.

a. Minimum Service Temperature: 0 degrees F.b. Maximum Service Temperature: 150 degrees F.c. Moisture Vapor Permeability: 0.002 perm inch, maximum, when tested in

accordance with ASTM E96/E96M.d. Thickness: 10 mil.e. Connections: Brush on welding adhesive.

2. Covering Adhesive Mastic: Compatible with insulation.

B. ABS Plastic:1. Jacket: One piece molded type fitting covers and sheet material, off-white color.

a. Minimum Service Temperature: Minus 40 degrees F.b. Maximum Service Temperature: 180 degrees F.c. Moisture Vapor Permeability: 0.012 perm inch, when tested in accordance

with ASTM E96/E96M.d. Thickness: 30 mil.e. Connections: Brush on welding adhesive.

C. Stainless Steel Jacket: ASTM A666, Type 304 stainless steel.1. Thickness: 0.010 inch.2. Finish: Smooth.3. Metal Jacket Bands: 3/8 inch wide; 0.010 inch thick stainless steel.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that piping has been tested before applying insulation materials.

B. Verify that surfaces are clean and dry, with foreign material removed.

3.2 INSTALLATION


B. Install in accordance with NAIMA National Insulation Standards.


































619453 23 07 19-4

C. Exposed Piping: Locate insulation and cover seams in least visible locations.

D. Insulated pipes conveying fluids below ambient temperature; insulate entire systemincluding fittings, valves, unions, flanges, strainers, flexible connections, and expansionjoints.

E. Glass fiber insulated pipes conveying fluids below ambient temperature:1. Provide vapor barrier jackets, factory-applied or field-applied; secure with

self-sealing longitudinal laps and butt strips with pressure sensitive adhesive. Secure with outward clinch expanding staples and vapor barrier mastic.

2. Insulate fittings, joints, and valves with molded insulation of like material andthickness as adjacent pipe. Finish with glass cloth and vapor barrier adhesive orPVC fitting covers.

F. For hot piping conveying fluids 140 degrees F or less, do not insulate flanges and unionsat equipment, but bevel and seal ends of insulation.

G. For hot piping conveying fluids over 140 degrees F, insulate flanges and unions atequipment.

H. Glass fiber insulated pipes conveying fluids above ambient temperature.1. Provide standard jackets, with or without vapor barrier, factory-applied or

field-applied. Secure with self-sealing longitudinal laps and butt strips withpressure sensitive adhesive. Secure with outward clinch expanding staples.

2. Insulate fittings, joints, and valves with insulation of like material and thickness asadjoining pipe. Finish with glass cloth and adhesive or PVC fitting covers.

I. Inserts and Shields:1. Application: Piping 1-1/2 inches diameter or larger.2. Shields: Galvanized steel between pipe hangers or pipe hanger rolls and inserts.3. Insert location: Between support shield and piping and under the finish jacket.

J. Exterior Applications: Provide vapor barrier jacket. Insulate fittings, joints, and valveswith insulation of like material and thickness as adjoining pipe, and finish with glassmesh reinforced vapor barrier cement. Cover with stainless steel jacket with seamslocated on bottom side of horizontal piping. Provide two coats of UV resistant finish forflexible elastomeric cellular insulation without jacketing.

END OF SECTION


































619453 23 31 00-1

SECTION 23 31 00 - HVAC DUCTS AND CASINGS

PART 1 GENERAL


A. Metal ductwork.

B. Duct cleaning.


A. ASTM A36/A36M - Standard Specification for Carbon Structural Steel; 2014.

B. ASTM A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) orZinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process; 2015.

C. ASTM A666 - Standard Specification for Annealed or Cold-Worked Austenitic StainlessSteel Sheet, Strip, Plate, and Flat Bar; 2015.

D. ASTM B209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate;2014.

E. ASTM B209M - Standard Specification for Aluminum and Aluminum-Alloy Sheet andPlate (Metric); 2014.

F. ASTM E84 - Standard Test Method for Surface Burning Characteristics of BuildingMaterials; 2016.

G. NFPA 90A - Standard for the Installation of Air-Conditioning and Ventilating Systems;2015.

H. SMACNA (DCS) - HVAC Duct Construction Standards Metal and Flexible; 2005 (Rev.2009).

1.3 SUBMITTALS

A. Product Data: Provide data for duct materials.

B. Shop Drawings: Indicate duct fittings, particulars such as gages, sizes, welds, andconfiguration prior to start of work for low pressure class and higher systems.

C. Manufacturer's Certificate: Certify that installation of glass fiber ductwork meet orexceed specified requirements.

619453 23 31 00-2

D. Project Record Documents: Record actual locations of ducts and duct fittings. Recordchanges in fitting location and type. Show additional fittings used.


A. Manufacturer Qualifications: Company specializing in manufacturing the type ofproducts specified in this section, with minimum three years of documentedexperience, and approved by manufacturer.

B. Installer Qualifications: Company specializing in performing the type of work specifiedin this section, with minimum three years of documented experience.


A. Do not install duct sealants when temperatures are less than those recommended bysealant manufacturers.

B. Maintain temperatures within acceptable range during and after installation of ductsealants.

PART 2 PRODUCTS

2.1 DUCT ASSEMBLIES

A. Regulatory Requirements: Construct ductwork to comply with NFPA 90A standards.

B. Ducts: Galvanized steel, unless otherwise indicated.

C. Low Pressure Supply (Heating Systems): 1/2 inch w.g. pressure class, galvanized steel.

D. Low Pressure Supply (System with Cooling Coils): 1/2 inch w.g. pressure class,galvanized steel.

E. Medium and High Pressure Supply: 1/2 inch w.g. pressure class, galvanized steel.

F. Return and Relief: 1/2 inch w.g. pressure class, galvanized steel.

G. General Exhaust: 1/2 inch w.g. pressure class, galvanized steel.

H. Outside Air Intake: 1/2 inch w.g. pressure class, galvanized steel.

619453 23 31 00-3

2.2 MATERIALS

A. Galvanized Steel for Ducts: Hot-dipped galvanized steel sheet, ASTM A653/A653M FSType B, with G60/Z180 coating.

B. Aluminum for Ducts: ASTM B209 (ASTM B209M); aluminum sheet, alloy 3003-H14. Aluminum Connectors and Bar Stock: Alloy 6061-T651 or of equivalent strength.

C. Stainless Steel for Ducts: ASTM A666, Type 304.

D. Joint Sealers and Sealants: Non-hardening, water resistant, mildew and mold resistant.1. Type: Heavy mastic or liquid used alone or with tape, suitable for joint

configuration and compatible with substrates, and recommended bymanufacturer for pressure class of ducts.

2. VOC Content: Not more than 250 g/L, excluding water.3. Surface Burning Characteristics: Flame spread index of zero and smoke

developed index of zero, when tested in accordance with ASTM E84.4. For Use With Flexible Ducts: UL labeled.

E. Hanger Rod: ASTM A36/A36M; steel, galvanized; threaded both ends, threaded oneend, or continuously threaded.

2.3 DUCTWORK FABRICATION

A. Fabricate and support in accordance with SMACNA (DCS) and as indicated.

B. Provide duct material, gages, reinforcing, and sealing for operating pressures indicated.

C. Provide turning vanes of perforated metal with glass fiber insulation when acousticallining is indicated.

D. Increase duct sizes gradually, not exceeding 15 degrees divergence wherever possible;maximum 30 degrees divergence upstream of equipment and 45 degrees convergencedownstream.

E. Fabricate continuously welded round and oval duct fittings in accordance with SMACNA(DCS).

F. Where ducts are connected to exterior wall louvers and duct outlet is smaller thanlouver frame, provide blank-out panels sealing louver area around duct. Use samematerial as duct, painted black on exterior side; seal to louver frame and duct.

https://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=SMACNA%20HVAC%20DUCT%20CONSTR




619453 23 31 00-4

2.4 MANUFACTURED DUCTWORK AND FITTINGS

A. Double Wall Insulated Round Ducts: Round spiral lockseam duct with galvanized steelouter wall, galvanized steel inner wall; fitting with solid inner wall.1. Manufacture in accordance with SMACNA (DCS).2. Insulation:

a. Thickness: 1 inch.

PART 3 EXECUTION

3.1 INSTALLATION

A. Install, support, and seal ducts in accordance with SMACNA (DCS).

B. Install in accordance with manufacturer's instructions.

C. During construction provide temporary closures of metal or taped polyethylene onopen ductwork to prevent construction dust from entering ductwork system.

D. Duct sizes indicated are inside clear dimensions. For lined ducts, maintain sizes insidelining.

E. Provide openings in ductwork where required to accommodate thermometers andcontrollers. Provide pitot tube openings where required for testing of systems,complete with metal can with spring device or screw to ensure against air leakage. Where openings are provided in insulated ductwork, install insulation material inside ametal ring.

F. Locate ducts with sufficient space around equipment to allow normal operating andmaintenance activities.

G. Use double nuts and lock washers on threaded rod supports.

H. Connect air handlers to supply ducts with one foot maximum length of flexible duct. Donot use flexible duct to change direction.

I. Connect diffusers or light troffer boots to low pressure ducts directly or with 5 feetmaximum length of flexible duct held in place with strap or clamp.

J. At exterior wall louvers, seal duct to louver frame and install blank-out panels.





























619453 23 31 00-5

3.2 CLEANING

A. Clean duct system and force air at high velocity through duct to remove accumulateddust. To obtain sufficient air, clean half the system at a time. Protect equipment thatcould be harmed by excessive dirt with temporary filters, or bypass during cleaning.

END OF SECTION








619453 23 33 00-1

SECTION 23 33 00 - AIR DUCT ACCESSORIES

PART 1 GENERAL


A. Air turning devices/extractors.

B. Duct test holes.

C. Flexible duct connectors.

D. Volume control dampers.

E. Miscellaneous products:1. Duct opening closure film.


A. Section 23 31 00 - HVAC Ducts and Casings.


A. NFPA 90A - Standard for the Installation of Air-Conditioning and Ventilating Systems;2015.

B. SMACNA (DCS) - HVAC Duct Construction Standards Metal and Flexible; 2005 (Rev.2009).

C. UL 555 - Standard for Fire Dampers; Current Edition, Including All Revisions.

1.4 SUBMITTALS

A. Product Data: Provide for shop fabricated assemblies including volume controldampers. Include electrical characteristics and connection requirements.

B. Shop Drawings: Indicate for shop fabricated assemblies including volume controldampers.

C. Manufacturer's Installation Instructions: Provide instructions for fire dampers.

D. Project Record Drawings: Record actual locations of access doors and test holes.

619453 23 33 00-2


A. Manufacturer Qualifications: Company specializing in manufacturing the type ofproducts specified in this section, with minimum three years of documentedexperience.


A. Protect dampers from damage to operating linkages and blades.

PART 2 PRODUCTS

2.1 AIR TURNING DEVICES/EXTRACTORS

A. Multi-blade device with blades aligned in short dimension; steel construction; withindividually adjustable blades, mounting straps.

2.2 FIRE DAMPERS

A. Fabricate in accordance with NFPA 90A and UL 555, and as indicated.

B. Multiple Blade Dampers: 16 gage, 0.0598 inch galvanized steel frame and blades,oil-impregnated bronze or stainless steel sleeve bearings and plated steel axles, 1/8 by1/2 inch plated steel concealed linkage, stainless steel closure spring, blade stops, andlock.

2.3 FLEXIBLE DUCT CONNECTORS

A. Fabricate in accordance with SMACNA (DCS) and as indicated.

B. Flexible Duct Connections: Fabric crimped into metal edging strip.1. Fabric: UL listed fire-retardant neoprene coated woven glass fiber fabric to NFPA

90A, minimum density 30 oz per sq yd.a. Net Fabric Width: Approximately 2 inches wide.

2. Metal: 3 inches wide, 24 gage, 0.0239 inch thick galvanized steel.

C. Maximum Installed Length: 14 inch.

2.4 VOLUME CONTROL DAMPERS

A. Fabricate in accordance with SMACNA (DCS) and as indicated.

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=NFPA%2090A






619453 23 33 00-3

B. Multi-Blade Damper: Fabricate of opposed blade pattern with maximum blade sizes 8by 72 inch. Assemble center and edge crimped blades in prime coated or galvanizedchannel frame with suitable hardware.

C. End Bearings: Except in round ducts 12 inches and smaller, provide end bearings. Onmultiple blade dampers, provide oil-impregnated nylon, thermoplastic elastomer, orsintered bronze bearings.

2.5 MISCELLANEOUS PRODUCTS

A. Duct Opening Closure Film: Mold-resistant, self-adhesive film to keep debris out ofducts during construction.1. Thickness: 2 mils.2. High tack water based adhesive.3. UV stable light blue color.4. Elongation Before Break: 325 percent, minimum.

PART 3 EXECUTION

3.1 PREPARATION

A. Verify that electric power is available and of the correct characteristics.

3.2 INSTALLATION

A. Install accessories in accordance with manufacturer's instructions, NFPA 90A, and followSMACNA (DCS). Refer to Section 23 31 00 for duct construction and pressure class.

B. Provide duct access doors for inspection and cleaning before and after filters, coils,fans, automatic dampers, at fire dampers, combination fire and smoke dampers, andelsewhere as indicated. Provide minimum 8 by 8 inch size for hand access, size forshoulder access, and as indicated. Provide 4 by 4 inch for balancing dampers only. Review locations prior to fabrication.

C. Provide fire dampers at locations indicated, where ducts and outlets pass through firerated components, and where required by Authorities Having Jurisdiction. Install withrequired perimeter mounting angles, sleeves, breakaway duct connections, corrosionresistant springs, bearings, bushings and hinges.

D. Demonstrate re-setting of fire dampers to Wicomico County Public Schools'srepresentative.

E. At fans and motorized equipment associated with ducts, provide flexible ductconnections immediately adjacent to the equipment.


































619453 23 33 00-4

F. At equipment supported by vibration isolators, provide flexible duct connectionsimmediately adjacent to the equipment.

G. Provide balancing dampers at points on supply, return, and exhaust systems wherebranches are taken from larger ducts as required for air balancing. Install minimum 2duct widths from duct take-off.

H. Provide balancing dampers on duct take-off to diffusers, grilles, and registers, regardlessof whether dampers are specified as part of the diffuser, grille, or register assembly.

END OF SECTION











619453 23 37 00-1

SECTION 23 37 00 - AIR OUTLETS AND INLETS

PART 1 GENERAL


A. Duct-mounted supply and return registers/louvers.


A. AMCA 500-L - Laboratory Methods of Testing Louvers for Rating; 2012.

B. ASHRAE Std 70 - Method of Testing the Performance of Air Outlets and Inlets; 2006(R2011).

1.3 SUBMITTALS

A. Product Data: Provide data for equipment required for this project. Review outlets andinlets as to size, finish, and type of mounting prior to submission. Submit schedule ofoutlets and inlets showing type, size, location, application, and noise level.

B. Project Record Documents: Record actual locations of air outlets and inlets.


A. Test and rate air outlet and inlet performance in accordance with ASHRAE Std 70.

B. Test and rate louver performance in accordance with AMCA 500-L.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Krueger-HVAC; ______: www.krueger-hvac.com/#sle.

B. Price Industries; ______: www.price-hvac.com/#sle.

C. Titus, a brand of Air Distribution Technologies; ______: www.titus-hvac.com/#sle.

D. Tuttle and Bailey; ______: www.tuttleandbailey.com/#sle.

619453 23 37 00-2

2.2 DUCT-MOUNTED SUPPLY AND RETURN REGISTERS/LOUVERS

A. Type: Duct-mounted, rectangular register for round-spiral duct with adjustablepivot-ended blades, end caps, built-in volume damper, and dual cover flanges to layflush on duct surface regardless of diameter. Performance to match manufacturer'scatalog data.

2.3 WALL EXHAUST AND RETURN REGISTERS/GRILLES

A. Type: Streamlined blades, 3/4 inch minimum depth, 3/4 inch maximum spacing, withspring or other device to set blades, vertical face.

END OF SECTION


619453 23 74 13-1

SECTION 23 74 13 - PACKAGED OUTDOOR CENTRAL-STATION AIR-HANDLING UNITS

PART 1 GENERAL


A. Packaged roof top unit.

B. Unit controls.

C. Maintenance service.


A. Section 22 05 48 - Vibration and Seismic Controls for Plumbing Piping and Equipment.


A. NFPA 90A - Standard for the Installation of Air-Conditioning and Ventilating Systems;2015.

1.4 SUBMITTALS

A. Product Data: Provide capacity and dimensions of manufactured products andassemblies required for this project. Indicate electrical service with electricalcharacteristics and connection requirements, and duct connections.

B. Shop Drawings: Indicate capacity and dimensions of manufactured products andassemblies required for this project. Indicate electrical service with electricalcharacteristics and connection requirements, and duct connections.

C. Manufacturer's Instructions: Indicate assembly, support details, connectionrequirements, and include start-up instructions.

D. Operation and Maintenance Data: Include manufacturer's descriptive literature,operating instructions, installation instructions, maintenance and repair data, and partslisting.

E. Warranty: Submit manufacturer's warranty and ensure forms have been filled out inWicomico County Public Schools's name and registered with manufacturer.

619453 23 74 13-2


A. Manufacturer Qualifications: Company specializing in manufacturing the type ofproducts specified in this section, with minimum three years of documentedexperience.

B. Products Requiring Electrical Connection: Listed and classified by UnderwritersLaboratories Inc. as suitable for the purpose specified and indicated.

1.6 WARRANTY

A. Provide a five year warranty to include coverage for refrigeration compressors.

PART 2 PRODUCTS

2.1 MANUFACTURED UNITS

A. General: Roof mounted units having gas burner and electric refrigeration.

B. Description: Self-contained, packaged, factory assembled and prewired, consisting ofcabinet and frame, supply fan, return fan, heat exchanger and burner, heat recoverycoil, controls, air filters, refrigerant cooling coil and compressor, condenser coil andcondenser fan.

2.2 FABRICATION

A. Cabinet: Steel with baked enamel finish, including access panels with screwdriveroperated flush cam type fasteners. Structural members shall be minimum 18 gage,0.0478 inch, with access doors or panels of minimum 20 gage, 0.0359 inch.

B. Heat Exchangers: Aluminized steel, of welded construction.

C. Supply and Return Fan: Forward curved centrifugal type, resiliently mounted withV-belt drive, adjustable variable pitch motor pulley, and rubber isolated hinge mountedhigh efficiency motor or direct drive as indicated. Isolate complete fan assembly. Referto Section 22 05 48.

2.3 BURNER

A. Gas Burner: Atmospheric type burner with adjustable combustion air supply, pressureregulator, gas valves, manual shut-off, intermittent spark or glow coil ignition, flamesensing device, and automatic 100 percent shut-off pilot.

B. Gas Burner Safety Controls: Energize ignition, limit time for establishment of flame,prevent opening of gas valve until pilot flame is proven, stop gas flow on ignition failure,

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energize blower motor, and after air flow proven and slight delay, allow gas valve toopen.

C. High Limit Control: Temperature sensor with fixed stop at maximum permissiblesetting, de-energize burner on excessive bonnet temperature and energize burner whentemperature drops to lower safe value.

D. Supply Fan Control: Temperature sensor sensing bonnet temperatures andindependent of burner controls, with provisions for continuous fan operation.

2.4 EVAPORATOR COIL

A. Provide copper tube aluminum fin coil assembly with galvanized drain pan andconnection.

B. Provide capillary tubes or thermostatic expansion valves for units of 6 tons capacity andless, and thermostatic expansion valves and alternate row circuiting for units 7.5 tonscooling capacity and larger.

2.5 COMPRESSOR

A. Provide hermetic compressors, 3600 rpm maximum, resiliently mounted with positivelubrication, crankcase heater, high and low pressure safety controls, motor overloadprotection, suction and discharge service valves and gauge ports, and filter drier.

2.6 CONDENSER COIL

A. Provide copper tube aluminum fin coil assembly with subcooling rows and coil guard.

B. Provide direct drive propeller fans, resiliently mounted with fan guard, motor overloadprotection, wired to operate with compressor. Provide high efficiency fan motors.

2.7 OPERATING CONTROLS

A. Provide low voltage, adjustable thermostat to control burner operation, compressorand condenser fan, and supply fan to maintain temperature setting.1. Include system selector switch (heat-off-cool) and fan control switch (auto-on).

B. Provide night control energized by central time clock to maintain night thermostatsetting, lock out refrigeration, close outside air damper and open return air damper, setfan control switch to auto position, for night and unoccupied operation.

2.8 HEAT RECOVERY COIL

A. Provide copper tube aluminum fin coil assembly with multiple circuits arranged toprovide heat recovery.

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PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that roof is ready to receive work and opening dimensions are as indicated onshop drawings.

B. Verify that proper power supply is available.

3.2 INSTALLATION


B. Install in accordance with NFPA 90A.

3.3 SYSTEM STARTUP

A. Prepare and start equipment. Adjust for proper operation.

3.4 MAINTENANCE

A. Provide a separate maintenance contract for specified maintenance service.

B. Provide service and maintenance of packaged roof top units for one year year fromDate of Substantial Completion.

C. Provide routine maintenance service with a two month interval as maximum timeperiod between calls.

D. Include maintenance items as outlined in manufacturer's operating and maintenancedata, including minimum of six filter replacements, minimum of one fan beltreplacement, and controls check-out, adjustments, and recalibration.

E. After each service call, submit copy of service call work order or report that includesdescription of work performed.

END OF SECTION


619453 23 74 33-1

SECTION 23 74 33 - DEDICATED OUTDOOR AIR UNITS

PART 1 GENERAL


A. Indirect fired make-up air heater.

B. Cooling coil section and compressor-condenser unit.

C. Controls.

1.2 SUBMITTALS

A. Product Data: Provide data with dimensions, duct and service connections, accessories,controls, electrical nameplate data, and wiring diagrams.

B. Shop Drawings: Indicate dimensions, duct and service connections, accessories,controls, electrical nameplate data, and wiring diagrams.

C. Manufacturer's Instructions: Indicate rigging, assembly, and installation instructions.

D. Operation And Maintenance Data: Include manufacturer's descriptive literature,operating instructions, installation instructions, maintenance and repair data, and partslisting.

E. Warranty: Submit manufacturers warranty and ensure forms have been filled out inWicomico County Public Schools's name and registered with manufacturer.

1.3 WARRANTY

A. Provide five year manufacturers warranty for compressor/condenser unit.

PART 2 PRODUCTS

2.1 MANUFACTURED UNITS

A. Unit: Outdoor dual volume unit with refrigeration package.1. Construction and Ratings: In accordance with AHRI 210/240 and UL 207. Testing:

ASHRAE Std 23.1.

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2.2 FABRICATION

A. Casing and Components: Steel panels, 18 gage, 0.0478 reinforced with structural anglesand channels to ensure rigidity; access panels to burner and blower motor assembliesfrom either side of unit.

B. Outdoor Installation: Weatherproofed casing, with intake louver or hood.

2.3 BURNERS

A. Assembly: For natural gas, capable of modulating turn down ratio of 12:1, includingelectric modulating main gas valve, motorized shut down valve, main and pilot gasregulators, pilot electric gas valve, manual shut-off valve and pilot adjustment valve.

2.4 FAN

A. Fan: Statically and dynamically balanced centrifugal fan mounted on solid steel shaftwith heavy duty self-aligning pre-lubricated ball bearings and V-belt drive with matchingmotor sheaves and belts.

2.5 CONTROLS

A. Controls: Pre-wire unit for connection of power supply. Field wiring from unit toremote control panel makes unit operative.

B. Remote Control Panel: On-off-auto switch, summer-winter switch, indicating lights forsupply fan, exhaust fan, pilot operation, burner operation, lockout indication, andclogged filter indication.

C. Carbon Monoxide Monitoring System: Operates fan on high volume whenpre-determined carbon monoxide concentration is detected.

D. Night Thermostat: Thermostat set at 50 degrees F energizes system on lowtemperature.

E. Safety Controls: Sense correct air flow before energizing pilot and sense pilot ignitionbefore activating main gas valve.

2.6 REFRIGERATION PACKAGE

A. Evaporator Coil: Copper tube aluminum fin coil assembly with alternate row circuiting,and with galvanized drain pan and thermostatic expansion valve.

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B. Compressor: One AHRI 520 hermetic, 3600 rpm maximum resiliently with positivelubrication, crankcase heater, high pressure control, low pressure control, motoroverload protection, service valves and drier.

C. Condenser: AHRI 520 aluminum fin and copper tube coil, direct drive axial fanresiliently mounted, galvanized fan guard.

D. Operating Controls: Low voltage, adjustable room thermostat controls compressor andcondenser fan to maintain room temperature setting. Provide hot gas bypass on onecompressor circuit.

E. Disconnect Switch: Factory mount disconnect switch in control panel.

PART 3 EXECUTION

3.1 INSTALLATION


B. Install to NFPA 90A.

3.2 MAINTENANCE

A. Provide service and maintenance of units for one year from Date of SubstantialCompletion.

END OF SECTION


619453 23 81 29-1

SECTION 23 81 29 - VARIABLE REFRIGERANT FLOW HVAC SYSTEMS

PART 1 GENERAL


A. Variable refrigerant volume HVAC system includes:1. Outdoor/condensing unit(s).2. Indoor/evaporator units.3. Refrigerant piping.4. Control panels.5. Control wiring.


A. AHRI 210/240 - Standard for Performance Rating of Unitary Air-Conditioning andAir-Source Heat Pump Equipment; 2008, Including All Addenda.

B. ASHRAE (FUND) - ASHRAE Handbook - Fundamentals; 2013.

C. ASHRAE Std 90.1 I-P - Energy Standard for Buildings Except Low-Rise ResidentialBuildings; 2013, Including All Amendments and Errata.

D. ITS (DIR) - Directory of Listed Products; current edition.

E. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

F. UL 1995 - Heating and Cooling Equipment; Current Edition, Including All Revisions.

1.3 ADMINISTRATIVE REQUIREMENTS

A. Preinstallation Meeting: Conduct a preinstallation meeting one week prior to the startof the work of this section; require attendance by all affected installers.

1.4 SUBMITTALS

A. Pre-Bid Submittals: For proposed substitute systems/products, as defined in PART 2,and alternate systems/products, as defined above, proposer shall submit all datadescribed in this article, under the terms given for substitutions stated in PART 2.

B. Product Data: Submit manufacturer's standard data sheets showing the following foreach item of equipment, marked to correlate to equipment item markings indicated inContract Documents:1. Outdoor/Central Units:

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a. Refrigerant Type and Size of Charge.b. Cooling Capacity: Btu/h.c. Heating Capacity: Btu/h.d. Cooling Input Power: Btu/h.e. Heating Input Power: Btu/h.f. Operating Temperature Range, Cooling and Heating.g. Air Flow: Cubic feet per minute.h. Sound Pressure Level: dB(A).i. Electrical Data:

1) Maximum Circuit Amps (MCA).2) Maximum Fuse Amps (MFA).3) Maximum Starting Current (MSC).4) Full Load Amps (FLA).5) Total Over Current Amps (TOCA).6) Fan Motor: HP.

j. Weight and Dimensions.k. Maximum number of indoor units that can be served.l. Maximum refrigerant piping run from outdoor/condenser unit to

indoor/evaporator unit.m. Maximum height difference between outdoor/condenser unit to

indoor/evaporator unit, both above and below.n. Control Options.

2. Indoor/Evaporator Units:a. Cooling Capacity: Btu/h.b. Heating Capacity: Btu/h.c. Cooling Input Power: Btu/h.d. Heating Input Power: Btu/h.e. Air Flow: Cubic feet per minute.f. Sound Pressure level: dB(A).g. Electrical Data:

1) Maximum Circuit Amps (MCA).2) Maximum Fuse Amps (MFA).3) Maximum Starting Current (MSC).4) Full Load Amps (FLA).5) Total Over Current Amps (TOCA).6) Fan Motor: HP.

h. Maximum Lift of Built-in Condensate Pump.i. Weight and Dimensions.j. Control Options.

3. Control Panels: Complete description of options, control points, zones/groups.

C. Shop Drawings: Installation drawings custom-made for this project; include as-designedHVAC layouts, locations of equipment items, refrigerant piping sizes and locations,condensate piping sizes and locations, remote sensing devices, control components,electrical connections, control wiring connections. Include:1. Detailed piping diagrams, with branch balancing devices.

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2. Condensate piping routing, size, and pump connections.3. Detailed power wiring diagrams.4. Detailed control wiring diagrams.5. Locations of required access through fixed construction.6. Drawings required by manufacturer.

D. Design Data:1. Provide design calculations showing that system will achieve performance

specified.2. Provide design data required by ASHRAE Std 90.1 I-P.

E. Operating and Maintenance Data:1. Manufacturer's complete standard instructions for each unit of equipment and

control panel.2. Custom-prepared system operation, troubleshooting, and maintenance

instructions and recommendations.3. Identification of replaceable parts and local source of supply.

F. Warranty: Executed warranty, made out in Wicomico County Public Schools's name.

G. Project Record Documents: Record the following:1. As-installed routing of refrigerant piping and condensate piping.2. Locations of access panels.3. Locations of control panels.


A. Manufacturer Qualifications:1. Company that has been manufacturing variable refrigerant volume heat pump

equipment for at least 5 years.2. Company that provides system design software to installers.

B. Installer Qualifications: Trained and approved by manufacturer of equipment.

1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver, store, and handle equipment and refrigerant piping according tomanufacturer's recommendations.

1.7 WARRANTY

A. Compressors: Provide manufacturer's warranty for six (6) years from date ofinstallation. During the stated period, should any part fail due to defects in material andworkmanship, it shall be repaired or replaced at the discretion of the manufactureraccording to the manufacturer's terms and conditions. All warranty service work shallbe preformed by a factory trained service professional approved by the manufacturer.

619453 23 81 29-4

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Basis of Design: The system design indicated in Contract Documents is based onequipment and system designed by Mitsubishi Electric; www.mitsubishicomfort.com.

2.2 HVAC SYSTEM DESIGN

A. System Operation: Heating or cooling, selected at system level.1. Zoning: Provide capability for temperature control for each individual

indoor/evaporator unit independently of all other units.2. Provide a complete functional system that achieves the specified performance

based on the specified design conditions and that is designed and constructedaccording to the equipment manufacturer's requirements.

3. Conditioned spaces are indicated on drawings.4. Outdoor/Condenser unit locations are indicated on drawings.5. Indoor/Evaporator unit locations are indicated on drawings.6. Required equipment unit capacities are indicated on drawings.7. Refrigerant piping is not shown on the drawings; this design and layout is the

responsibility of the manufacturer/installer.8. Connect equipment to condensate piping provided by others; condensate piping

is indicated on drawings.

B. Cooling Mode Interior Performance:1. Daytime Setpoint: 72 degrees F, plus or minus 2 degrees F.2. Setpoint Range: 57 degrees F to 77 degrees F.3. Night Setback: 78 degrees F.4. Interior Relative Humidity: 50 percent, maximum.

C. Heating Mode Interior Performance:1. Daytime Setpoint: 70 degrees F, plus or minus 2 degrees F.2. Setpoint Range: 59 degrees F to 80 degrees F.3. Night Setback: 60 degrees F.4. Interior Relative Humidity: 10 percent, minimum.

D. Outside Air Design Conditions:1. Summer Outside Air Design Temperature: 0.4 percent cooling design condition

listed in ASHRAE Fundamentals Handbook - ASHRAE (FUND).2. Winter Outside Air Design Temperature: 99.6 percent heating design condition

listed in ASHRAE Fundamentals Handbook - ASHRAE (FUND).

E. Operating Temperature Ranges:1. Simultaneous Heating and Cooling Operating Range: minus 4 degrees F to 60

degrees F dry bulb.

619453 23 81 29-5

2. Cooling Mode Operating Range: minus 4 degrees F to 110 degrees F dry bulb.3. Heating Mode Operating Range: 0 degrees F to 77 degrees F dry bulb; minus 4

degrees F to 60 degrees F wet bulb; without low ambient controls or auxiliaryheat source.

F. Refrigerant Piping Lengths: Provide equipment capable of serving system withfollowing piping lengths without any oil traps:1. Minimum Piping Length from Outdoor/Central Unit(s) to Furthest Terminal Unit:

540 feet, actual; 620 feet, equivalent.2. Total Combined Liquid Line Length: 3280 feet, minimum.3. Maximum Vertical Distance Between Outdoor/Central Unit(s) and Terminal Units:

295 feet.4. Minimum Piping Length Between Indoor Units: 49 feet.

G. Control Wiring Lengths:1. Between Outdoor/Condenser Unit and Indoor/Evaporator Unit: 6,665 feet,

minimum.2. Between Outdoor/Condenser Unit and Central Controller: 3,330 feet, minimum.3. Between Indoor/Evaporator Unit and Remote Controller: 1,665 feet.

H. Controls: Provide the following control interfaces:1. For Each Indoor/Evaporator Unit: One wall-mounted wired "local" controller,

with temperature sensor; locate where indicated.2. One central remote control panel for entire system; locate where directed.

I. Local Controllers: Wall-mounted, wired, containing temperature sensor.

2.3 EQUIPMENT

A. All Units: Factory assembled, wired, and piped and factory tested for function andsafety.1. Refrigerant: Use only refrigerants that have ozone depletion potential (ODP) of

zero and global warming potential (GWP) of less than 50.2. Refrigerant: R-410A.3. Performance Certification: AHRI Certified; www.ahrinet.org.4. Safety Certification: Tested to UL 1995 by UL or Intertek-ETL, listed in ITS (DIR),

and bearing the certification label.5. Provide outdoor/condensing units capable of serving indoor unit capacity up to

200 percent of the capacity of the outdoor/condensing unit.6. Provide units capable of serving the zones indicated.7. Thermal Performance: Provide heating and cooling capacity as indicated, based

on the following nominal operating conditions:8. Energy Efficiency: Report EER and COP based on tests conducted at “full load” in

accordance with AHRI 210/240 or alternate test method approved by U.S.Department of Energy.

619453 23 81 29-6

B. Electrical Characteristics:1. Power - Condensing Units: 208 to 230 Volts, 3-phase, 60 Hz.2. Power - Indoor Units: 208 to 230 Volts, single phase, 60 Hz.3. 208-230 Voltage Range: 187 to 253 volts.4. Control: 16 volts DC.

C. System Controls:1. Include self diagnostic, auto-check functions to detect malfunctions and display

the type and location.

D. Remote Centralized Control Panel:

E. Unit Controls: As required to perform input functions necessary to operate system;provided by manufacturer of units.1. Provide interfaces to remote control and building automation systems as

specified.2. Outside air capability.

F. Wiring:1. Control Wiring: 18 AWG, 2-conductor, non-shielded, non-polarized, stranded

cable.2. Control Wiring Configuration: Daisy chain.

G. Refrigerant Piping:1. Refrigerant Flow Balancing: Provide refrigerant piping joints and headers

specifically designed to ensure proper refrigerant balance and flow for optimumsystem capacity and performance; T-style joints are prohibited.

2. Insulate each refrigerant line individually between the condensing and indoorunits.

2.4 OUTDOOR/CONDENSING UNITS

A. Outdoor/Condensing Units: Air-cooled DX refrigeration units, designed specifically foruse with indoor/evaporator units; factory assembled and wired with all necessaryelectronic and refrigerant controls; modular design for ganging multiple units.1. Refrigeration Circuit: Scroll compressors, motors, fans, condenser coil, electronic

expansion valves, solenoid valves, 4-way valve, distribution headers, capillaries,filters, shut off valves, oil separators, service ports and refrigerant regulator.

2. Refrigerant: Factory charged.3. Variable Volume Control: Modulate compressor capacity automatically to

maintain constant suction and condensing pressures while varying refrigerantvolume to suit heating/cooling loads.

4. Capable of being installed with wiring and piping to the left, right, rear or bottom.5. Capable of heating operation at low end of operating range as specified, without

additional low ambient controls or auxiliary heat source; during heating

619453 23 81 29-7

operation, reverse cycle (cooling mode) oil return or defrost is not permitted, dueto potential reduction in space temperature.

6. Sound Pressure Level: As specified, measured at 3 feet from front of unit;provide night setback sound control as a standard feature; three selectable soundlevel steps of 55 dB, 50 dB, and 45 dB, maximum.

7. Power Failure Mode: Automatically restart operation after power failure withoutloss of programmed settings.

8. Provide refrigerant auto-charging feature and refrigerant charge check function.9. Safety Devices: High pressure sensor and switch, low pressure sensor/switch,

control circuit fuses, crankcase heaters, fusible plug, overload relay, inverteroverload protector, thermal protectors for compressor and fan motors, overcurrent protection for the inverter and anti-recycling timers.

10. Provide refrigerant sub-cooling to ensure the liquid refrigerant does not flashwhen supplying to us indoor units.

11. Oil Recovery Cycle: Automatic, occurring 2 hours after start of operation andthen every 8 hours of operation; maintain continuous heating during oil returnoperation.

12. Controls: Provide contacts for electrical demand shedding.

B. Unit Cabinet: Weatherproof and corrosion resistant; rust-proofed mild steel panelscoated with baked enamel finish.1. Designed to allow side-by-side installation with minimum spacing.

C. Fans: One or more direct-drive propeller type, vertical discharge, with multiple speedoperation via DC (digitally commutating) inverter.1. Provide minimum of 2 fans for each condensing unit.2. External Static Pressure: Factory set at 0.12 in WG, minimum.3. Indoor Mounted Air-Cooled Units: External static pressure field set at 0.32 in

WG, minimum; provide for mounting of field-installed ducts.4. Fan Airflow: As indicated for specific equipment.5. Fan Motors: Factory installed; permanently lubricated bearings; inherent

protection; fan guard; output as indicated for specific equipment.

D. Condenser Coils: Copper tubes expanded into aluminum fins to form mechanical bond;waffle louver fin and rifled bore tube design to ensure high efficiency performance.

E. Compressors: Scroll type, hermetically sealed, variable speed inverter-driven and fixedspeed in combination to suit total capacity; minimum of one variable speed, inverterdriven compressor per condenser unit; minimum of two compressors per condenserunit; capable of controlling capacity within range of 6 percent to 100 percent of totalcapacity.1. Multiple Condenser Modules: Balance total operation hours of compressors by

means of duty cycling function, providing for sequential starting of each moduleat each start/stop cycle, completion of oil return, and completion of defrost, orevery 8 hours.

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2. Failure Mode: In the event of compressor failure, operate remainingcompressor(s) at proportionally reduced capacity; provide microprocessor andassociated controls specifically designed to address this condition.

3. Provide each compressor with crankcase heater, high pressure safety switch, andinternal thermal overload protector.

4. Provide oil separators and intelligent oil management system.

2.5 INDOOR/EVAPORATOR UNITS

A. All Indoor/Evaporator Units: Factory assembled and tested DX fan-coil units, withelectronic proportional expansion valve, control circuit board, factory wiring and piping,self-diagnostics, auto-restart function, 3-minute fused time delay, and test run switch.1. Refrigerant: Refrigerant circuits factory-charged with dehydrated air, for field

charging.2. Temperature Control Mechanism: Return air thermistor and computerized

Proportional-Integral-Derivative (PID) control of superheat.3. Coils: Direct expansion type constructed from copper tubes expanded into

aluminum fins to form a mechanical bond; waffle louver fin and high heatexchange, rifled bore tube design; factory tested.

4. Fans: Direct-drive, with statically and dynamically balanced impellers; high andlow speeds unless otherwise indicated; motor thermally protected.

5. Return Air Filter: Washable long-life net filter with mildew proof resin, unlessotherwise indicated.

6. Condensate Drainage: Built-in condensate drain pan with PVC drain connection.a. Units With Built-In Condensate Pumps: Provide condensate safety shutoff

and alarm.b. Units Without Built-In Condensate Pump: Provide built-in condensate float

switch and wiring connections.7. Cabinet Insulation: Sound absorbing foamed polystyrene and polyethylene

insulation.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that required electrical services have been installed and are in the properlocations prior to starting installation.

B. Verify that condensate piping has been installed and is in the proper location prior tostarting installation.

C. Notify Engineer if conditions for installation are unsatisfactory.

3.2 INSTALLATION


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B. Install refrigerant piping in accordance with equipment manufacturer's instructions.

C. Perform wiring in accordance with NFPA 70, National Electric Code (NEC).

D. Coordinate with installers of systems and equipment connecting to this system.

3.3 FIELD QUALITY CONTROL

A. Provide manufacturer's field representative to inspect installation prior to startup.

3.4 SYSTEM STARTUP

A. Provide manufacturer's field representative to perform system startup.

B. Prepare and start equipment and system in accordance with manufacturer'sinstructions and recommendations.

C. Adjust equipment for proper operation within manufacturer's published tolerances.

3.5 CLEANING

A. Clean exposed components of dirt, finger marks, and other disfigurements.

3.6 CLOSEOUT ACTIVITIES

A. Demonstrate proper operation of equipment to Wicomico County Public Schools'sdesignated representative.

B. Demonstration: Demonstrate operation of system to Wicomico County Public Schools'spersonnel.1. Use operation and maintenance data as reference during demonstration.2. Conduct walking tour of project.3. Briefly describe function, operation, and maintenance of each component.

C. Training: Train Wicomico County Public Schools's personnel on operation andmaintenance of system.1. Use operation and maintenance manual as training reference, supplemented

with additional training materials as required.2. Provide minimum of one day of training.3. Instructor: Manufacturer's training personnel.4. Location: At project site.

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3.7 PROTECTION

A. Protect installed components from subsequent construction operations.

B. Replace exposed components broken or otherwise damaged beyond repair.

3.8 MAINTENANCE

A. Provide a separate maintenance contract for specified maintenance service.

END OF SECTION

DIVISION 26 - ELECTRICAL

619453 26 05 05-1

SECTION 26 05 05 - SELECTIVE DEMOLITION FOR ELECTRICAL

PART 1 GENERAL


A. Electrical demolition.


A. Section 01 70 00 - Execution and Closeout Requirements: Additional requirements foralterations work.

1.3 SUBMITTALS


PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

A. Materials and equipment for patching and extending work: As specified in individualsections.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify field measurements and circuiting arrangements are as indicated.

B. Verify that abandoned wiring and equipment serve only abandoned facilities.

C. Demolition drawings are based on casual field observation and existing recorddocuments.

D. Report discrepancies to Wicomico County Public Schools before disturbing existinginstallation.

E. Beginning of demolition means installer accepts existing conditions.

3.2 PREPARATION

A. Disconnect electrical systems in walls, floors, and ceilings to be removed.

619453 26 05 05-2

B. Coordinate utility service outages with utility company.

C. Provide temporary wiring and connections to maintain existing systems in serviceduring construction. When work must be performed on energized equipment orcircuits, use personnel experienced in such operations.

D. Existing Electrical Service: Maintain existing system in service until new system iscomplete and ready for service. Disable system only to make switchovers andconnections. Minimize outage duration.1. Obtain permission from Wicomico County Public Schools at least 24 hours before

partially or completely disabling system.2. Make temporary connections to maintain service in areas adjacent to work area.

E. Existing Fire Alarm System: Maintain existing system in service until new system isaccepted. Disable system only to make switchovers and connections. Minimize outageduration.1. Notify Wicomico County Public Schools before partially or completely disabling

system.2. Make notifications at least 24 hours in advance.3. Make temporary connections to maintain service in areas adjacent to work area.

3.3 DEMOLITION AND EXTENSION OF EXISTING ELECTRICAL WORK

A. Perform work for removal and disposal of equipment and materials containing toxicsubstances regulated under the Federal Toxic Substances Control Act (TSCA) inaccordance with applicable federal, state, and local regulations. Applicable equipmentand materials include, but are not limited to:1. PCB-containing electrical equipment, including transformers, capacitors, and

switches.

B. Remove, relocate, and extend existing installations to accommodate new construction.

C. Remove abandoned wiring to source of supply.

D. Remove exposed abandoned conduit, including abandoned conduit above accessibleceiling finishes. Cut conduit flush with walls and floors, and patch surfaces.

E. Disconnect abandoned outlets and remove devices. Remove abandoned outlets ifconduit servicing them is abandoned and removed. Provide blank cover for abandonedoutlets that are not removed.

F. Disconnect and remove abandoned panelboards and distribution equipment.

G. Disconnect and remove electrical devices and equipment serving utilization equipmentthat has been removed.

619453 26 05 05-3

H. Repair adjacent construction and finishes damaged during demolition and extensionwork.

I. Maintain access to existing electrical installations that remain active. Modifyinstallation or provide access panel as appropriate.

J. Extend existing installations using materials and methods compatible with existingelectrical installations, or as specified.

3.4 CLEANING AND REPAIR

A. See Section 01 74 19 - Construction Waste Management and Disposal for additionalrequirements.

B. Clean and repair existing materials and equipment that remain or that are to be reused.

C. Panelboards: Clean exposed surfaces and check tightness of electrical connections. Replace damaged circuit breakers and provide closure plates for vacant positions. Provide typed circuit directory showing revised circuiting arrangement.

END OF SECTION


619453 26 05 19-1

SECTION 26 05 19 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 GENERAL


A. Single conductor building wire.

B. Metal-clad cable.

C. Wiring connectors.

D. Electrical tape.

E. Heat shrink tubing.

F. Cable ties.


A. Section 26 05 05 - Selective Demolition for Electrical: Disconnection, removal, and/orextension of existing electrical conductors and cables.

B. Section 26 05 26 - Grounding and Bonding for Electrical Systems: Additionalrequirements for grounding conductors and grounding connectors.

C. Section 26 05 53 - Identification for Electrical Systems: Identification products andrequirements.

D. Section 28 46 00 - Fire Detection and Alarm: Fire alarm system conductors and cables.


A. ASTM B3 - Standard Specification for Soft or Annealed Copper Wire; 2013.

B. ASTM B8 - Standard Specification for Concentric-Lay-Stranded Copper Conductors,Hard, Medium-Hard, or Soft; 2011.

C. ASTM B33 - Standard Specification for Tin-Coated Soft or Annealed Copper Wire forElectrical Purposes; 2010 (Reapproved 2014).

D. ASTM B787/B787M - Standard Specification for 19 Wire Combination Unilay-StrandedCopper Conductors for Subsequent Insulation; 2004 (Reapproved 2014).

619453 26 05 19-2

E. ASTM D3005 - Standard Specification for Low-Temperature Resistant Vinyl ChloridePlastic Pressure-Sensitive Electrical Insulating Tape; 2010.

F. ASTM D4388 - Standard Specification for Nonmetallic Semi-Conducting and ElectricallyInsulating Rubber Tapes; 2013.

G. NECA 1 - Standard for Good Workmanship in Electrical Construction; 2015.

H. NECA 120 - Standard for Installing Armored Cable (AC) and Metal-Clad Cable (MC);2012.

I. NEMA WC 70 - Power Cables Rated 2000 Volts or Less for the Distribution of ElectricalEnergy; 2009.

J. NETA ATS - Acceptance Testing Specifications for Electrical Power Equipment andSystems; 2013.

K. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

L. UL 44 - Thermoset-Insulated Wires and Cables; Current Edition, Including All Revisions.

M. UL 83 - Thermoplastic-Insulated Wires and Cables; Current Edition, Including AllRevisions.

N. UL 183 - Manufactured Wiring Systems; Current Edition, Including All Revisions.

O. UL 486A-486B - Wire Connectors; Current Edition, Including All Revisions.

P. UL 486C - Splicing Wire Connectors; Current Edition, Including All Revisions.

Q. UL 486D - Sealed Wire Connector Systems; Current Edition, Including All Revisions.

R. UL 510 - Polyvinyl Chloride, Polyethylene, and Rubber Insulating Tape; Current Edition,Including All Revisions.

S. UL 1569 - Metal-Clad Cables; Current Edition, Including All Revisions.


A. Coordination:1. Coordinate sizes of raceways, boxes, and equipment enclosures installed under

other sections with the actual conductors to be installed, including adjustmentsfor conductor sizes increased for voltage drop.

619453 26 05 19-3

2. Coordinate the installation of direct burial cable with other trades to avoidconflicts with piping or other potential conflicts.

3. Coordinate with electrical equipment installed under other sections to provideterminations suitable for use with the conductors to be installed.

4. Notify Engineer of any conflicts with or deviations from Contract Documents. Obtain direction before proceeding with work.

1.5 SUBMITTALS


B. Product Data: Provide manufacturer's standard catalog pages and data sheets forconductors and cables, including detailed information on materials, construction,ratings, listings, and available sizes, configurations, and stranding.

C. Sustainable Design Documentation: Submit manufacturer's product data on conductorand cable showing compliance with specified lead content requirements.

D. Maintenance Materials: Furnish the following for Wicomico County Public Schools's usein maintenance of project.1. See Section 01 60 00 - Product Requirements, for additional provisions.


A. Comply with requirements of NFPA 70.

B. Product Listing Organization Qualifications: An organization recognized by OSHA as aNationally Recognized Testing Laboratory (NRTL) and acceptable to authorities havingjurisdiction.


A. Receive, inspect, handle, and store conductors and cables in accordance withmanufacturer's instructions.


A. Do not install or otherwise handle thermoplastic-insulated conductors at temperatureslower than 14 degrees F, unless otherwise permitted by manufacturer's instructions.When installation below this temperature is unavoidable, notify Engineer and obtaindirection before proceeding with work.

619453 26 05 19-4

PART 2 PRODUCTS

2.1 CONDUCTOR AND CABLE APPLICATIONS

A. Do not use conductors and cables for applications other than as permitted by NFPA 70and product listing.

B. Provide single conductor building wire installed in suitable raceway unless otherwiseindicated, permitted, or required.

C. Nonmetallic-sheathed cable is not permitted.

D. Metal-clad cable is permitted only as follows:1. Where not otherwise restricted, may be used:

a. Where concealed above accessible ceilings for final connections fromjunction boxes to luminaires.1) Maximum Length: 6 feet.

b. Where concealed in hollow stud walls, above accessible ceilings, and underraised floors for branch circuits up to 20 A.

2. In addition to other applicable restrictions, may not be used:a. Unless approved by Wicomico County Public Schools.b. Where not approved for use by the authority having jurisdiction.c. Where exposed to damage.d. For damp, wet, or corrosive locations, unless provided with a PVC jacket

listed as suitable for those locations.

2.2 CONDUCTOR AND CABLE GENERAL REQUIREMENTS

A. Provide products that comply with requirements of NFPA 70.

B. Provide products listed, classified, and labeled as suitable for the purpose intended.

C. Unless specifically indicated to be excluded, provide all required conduit, boxes, wiring,connectors, etc. as required for a complete operating system.

D. Comply with NEMA WC 70.

E. Thermoplastic-Insulated Conductors and Cables: Listed and labeled as complying withUL 83.

F. Thermoset-Insulated Conductors and Cables: Listed and labeled as complying with UL44.

G. Conductor Material:

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619453 26 05 19-5

1. Provide copper conductors only. Aluminum conductors are not acceptable forthis project. Conductor sizes indicated are based on copper.

2. Copper Conductors: Soft drawn annealed, 98 percent conductivity, uncoatedcopper conductors complying with ASTM B3, ASTM B8, or ASTM B787/B787Munless otherwise indicated.

3. Tinned Copper Conductors: Comply with ASTM B33.

H. Minimum Conductor Size:1. Branch Circuits: 12 AWG.

a. Exceptions:1) 20 A, 120 V circuits longer than 75 feet: 10 AWG, for voltage drop.2) 20 A, 120 V circuits longer than 150 feet: 8 AWG, for voltage drop.

2. Control Circuits: 14 AWG.

I. Conductor Color Coding:1. Color code conductors as indicated unless otherwise required by the authority

having jurisdiction. Maintain consistent color coding throughout project.2. Color Coding Method: Integrally colored insulation.

a. Conductors size 4 AWG and larger may have black insulation color codedusing vinyl color coding electrical tape.

3. Color Code:a. 208Y/120 V, 3 Phase, 4 Wire System:

1) Phase A: Black.2) Phase B: Red.3) Phase C: Blue.4) Neutral/Grounded: White.

b. Equipment Ground, All Systems: Green.c. Isolated Ground, All Systems: Green with yellow stripe.d. Travelers for 3-Way and 4-Way Switching: Pink.e. For control circuits, comply with manufacturer's recommended color code.

2.3 SINGLE CONDUCTOR BUILDING WIRE

A. Description: Single conductor insulated wire.

B. Insulation Voltage Rating: 600 V.

C. Insulation:1. Copper Building Wire: Type THHN/THWN or THHN/THWN-2, except as indicated

below.a. Size 4 AWG and Larger: Type XHHW-2.b. Installed Underground: Type XHHW-2.c. Fixture Wiring Within Luminaires: Type TFFN/TFN for luminaires with

labeled maximum temperature of 90 degrees C; Approved suitable type forluminaires with labeled maximum temperature greater than 90 degrees C.






619453 26 05 19-6

2.4 METAL-CLAD CABLE

A. Description: NFPA 70, Type MC cable listed and labeled as complying with UL 1569, andlisted for use in classified firestop systems to be used.

B. Conductor Stranding:1. Size 10 AWG and Smaller: Solid.2. Size 8 AWG and Larger: Stranded.

C. Insulation Voltage Rating: 600 V.

D. Insulation: Type THHN, THHN/THWN, or THHN/THWN-2.

E. Grounding: Full-size integral equipment grounding conductor.1. Provide additional isolated/insulated grounding conductor where indicated or

required.

F. Armor: Steel, interlocked tape.

G. Provide PVC jacket applied over cable armor where indicated or required forenvironment of installed location.

2.5 WIRING CONNECTORS

A. Description: Wiring connectors appropriate for the application, suitable for use withthe conductors to be connected, and listed as complying with UL 486A-486B or UL 486Cas applicable.

B. Wiring Connectors for Splices and Taps:1. Copper Conductors Size 8 AWG and Smaller: Use twist-on insulated spring

connectors.2. Copper Conductors Size 6 AWG and Larger: Use mechanical connectors or

compression connectors.

C. Wiring Connectors for Terminations:1. Provide terminal lugs for connecting conductors to equipment furnished with

terminations designed for terminal lugs.2. Provide compression adapters for connecting conductors to equipment furnished

with mechanical lugs when only compression connectors are specified.3. Where over-sized conductors are larger than the equipment terminations can

accommodate, provide connectors suitable for reducing to appropriate size, butnot less than required for the rating of the overcurrent protective device.

4. Provide motor pigtail connectors for connecting motor leads in order to facilitatedisconnection.

619453 26 05 19-7

5. Copper Conductors Size 8 AWG and Larger: Use mechanical connectors orcompression connectors where connectors are required.

6. Stranded Conductors Size 10 AWG and Smaller: Use crimped terminals forconnections to terminal screws.

7. Conductors for Control Circuits: Use crimped terminals for all connections.

D. Do not use insulation-piercing or insulation-displacement connectors designed for usewith conductors without stripping insulation.

E. Do not use push-in wire connectors as a substitute for twist-on insulated springconnectors.

F. Twist-on Insulated Spring Connectors: Rated 600 V, 221 degrees F for standardapplications and 302 degrees F for high temperature applications; pre-filled with sealantand listed as complying with UL 486D for damp and wet locations.

G. Mechanical Connectors: Provide bolted type or set-screw type.

H. Compression Connectors: Provide circumferential type or hex type crimp configuration.

I. Crimped Terminals: Nylon-insulated, with insulation grip and terminal configurationsuitable for connection to be made.

2.6 ACCESSORIES

A. Electrical Tape:1. Vinyl Color Coding Electrical Tape: Integrally colored to match color code

indicated; listed as complying with UL 510; minimum thickness of 7 mil; resistantto abrasion, corrosion, and sunlight; suitable for continuous temperatureenvironment up to 221 degrees F.a. Substitutions: See Section 01 60 00 - Product Requirements.

2. Vinyl Insulating Electrical Tape: Complying with ASTM D3005 and listed ascomplying with UL 510; minimum thickness of 7 mil; resistant to abrasion,corrosion, and sunlight; conformable for application down to 0 degrees F andsuitable for continuous temperature environment up to 221 degrees F.

3. Rubber Splicing Electrical Tape: Ethylene Propylene Rubber (EPR) tape,complying with ASTM D4388; minimum thickness of 30 mil; suitable forcontinuous temperature environment up to 194 degrees F and short-term 266degrees F overload service.

4. Electrical Filler Tape: Rubber-based insulating moldable putty, minimumthickness of 125 mil; suitable for continuous temperature environment up to 176degrees F.

5. Varnished Cambric Electrical Tape: Cotton cambric fabric tape, with or withoutadhesive, oil-primed and coated with high-grade insulating varnish; minimumthickness of 7 mil; suitable for continuous temperature environment up to 221degrees F.

619453 26 05 19-8

6. Moisture Sealing Electrical Tape: Insulating mastic compound laminated toflexible, all-weather vinyl backing; minimum thickness of 90 mil.

B. Heat Shrink Tubing: Heavy-wall, split-resistant, with factory-applied adhesive; rated 600V; suitable for direct burial applications; listed as complying with UL 486D.

C. Wire Pulling Lubricant: Listed; suitable for use with the conductors or cables to beinstalled and suitable for use at the installation temperature.

D. Cable Ties: Material and tensile strength rating suitable for application.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that interior of building has been protected from weather.

B. Verify that work likely to damage wire and cable has been completed.

C. Verify that raceways, boxes, and equipment enclosures are installed and are properlysized to accommodate conductors and cables in accordance with NFPA 70.

D. Verify that field measurements are as indicated.

E. Verify that conditions are satisfactory for installation prior to starting work.

3.2 PREPARATION

A. Clean raceways thoroughly to remove foreign materials before installing conductorsand cables.

3.3 INSTALLATION

A. Circuiting Requirements:1. Unless dimensioned, circuit routing indicated is diagrammatic.2. When circuit destination is indicated without specific routing, determine exact

routing required.3. Arrange circuiting to minimize splices.4. Maintain separation of Class 1, Class 2, and Class 3 remote-control, signaling, and

power-limited circuits in accordance with NFPA 70.5. Maintain separation of wiring for emergency systems in accordance with NFPA

70.6. Circuiting Adjustments: Unless otherwise indicated, when branch circuits are

indicated as separate, combining them together in a single raceway is notpermitted.

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619453 26 05 19-9

B. Install products in accordance with manufacturer's instructions.

C. Perform work in accordance with NECA 1 (general workmanship).

D. Install metal-clad cable (Type MC) in accordance with NECA 120.

E. Installation in Raceway:1. Tape ends of conductors and cables to prevent infiltration of moisture and other

contaminants.2. Pull all conductors and cables together into raceway at same time.3. Do not damage conductors and cables or exceed manufacturer's recommended

maximum pulling tension and sidewall pressure.4. Use suitable wire pulling lubricant where necessary, except when lubricant is not

recommended by the manufacturer.

F. Exposed Cable Installation (only where specifically permitted):1. Route cables parallel or perpendicular to building structural members and

surfaces.2. Protect cables from physical damage.

G. Installation in Cable Tray: Also comply with Section 26 05 36.

H. Paralleled Conductors: Install conductors of the same length and terminate in the samemanner.

I. Secure and support conductors and cables in accordance with NFPA 70 using suitablesupports and methods approved by the authority having jurisdiction. Provideindependent support from building structure. Do not provide support from raceways,piping, ductwork, or other systems.1. Installation Above Suspended Ceilings: Do not provide support from ceiling

support system. Do not provide support from ceiling grid or allow conductors andcables to lay on ceiling tiles.

2. Installation in Vertical Raceways: Provide supports where vertical rise exceedspermissible limits.

J. Terminate cables using suitable fittings.1. Metal-Clad Cable (Type MC):

a. Use listed fittings.b. Cut cable armor only using specialized tools to prevent damaging

conductors or insulation. Do not use hacksaw or wire cutters to cut armor.

K. Install conductors with a minimum of 12 inches of slack at each outlet.

L. Where conductors are installed in enclosures for future termination by others, providea minimum of 5 feet of slack.





































619453 26 05 19-10

M. Neatly train and bundle conductors inside boxes, wireways, panelboards and otherequipment enclosures.

N. Group or otherwise identify neutral/grounded conductors with associated ungroundedconductors inside enclosures in accordance with NFPA 70.

O. Make wiring connections using specified wiring connectors.1. Make splices and taps only in accessible boxes. Do not pull splices into raceways

or make splices in conduit bodies or wiring gutters.2. Remove appropriate amount of conductor insulation for making connections

without cutting, nicking or damaging conductors.3. Do not remove conductor strands to facilitate insertion into connector.4. Clean contact surfaces on conductors and connectors to suitable remove

corrosion, oxides, and other contaminates. Do not use wire brush on platedconnector surfaces.

5. Mechanical Connectors: Secure connections according to manufacturer'srecommended torque settings.

6. Compression Connectors: Secure connections using manufacturer'srecommended tools and dies.

P. Insulate splices and taps that are made with uninsulated connectors using methodssuitable for the application, with insulation and mechanical strength at least equivalentto unspliced conductors.1. Dry Locations: Use insulating covers specifically designed for the connectors,

electrical tape, or heat shrink tubing.a. For taped connections, first apply adequate amount of rubber splicing

electrical tape or electrical filler tape, followed by outer covering of vinylinsulating electrical tape.

b. For taped connections likely to require re-entering, including motor leads,first apply varnished cambric electrical tape, followed by adequate amountof rubber splicing electrical tape, followed by outer covering of vinylinsulating electrical tape.

2. Damp Locations: Use insulating covers specifically designed for the connectors,electrical tape, or heat shrink tubing.a. For connections with insulating covers, apply outer covering of moisture

sealing electrical tape.b. For taped connections, follow same procedure as for dry locations but

apply outer covering of moisture sealing electrical tape.3. Wet Locations: Use heat shrink tubing.

Q. Insulate ends of spare conductors using vinyl insulating electrical tape.

R. Field-Applied Color Coding: Where vinyl color coding electrical tape is used in lieu ofintegrally colored insulation as permitted in Part 2 under "Color Coding", apply half









































619453 26 05 19-11

overlapping turns of tape at each termination and at each location conductors areaccessible.

S. Identify conductors and cables in accordance with Section 26 05 53.

T. Install firestopping to preserve fire resistance rating of partitions and other elements,using materials and methods specified in Section 07 84 00.

U. Unless specifically indicated to be excluded, provide final connections to all equipmentand devices, including those furnished by others, as required for a complete operatingsystem.


A. See Section 01 40 00 - Quality Requirements, for additional requirements.

B. Inspect and test in accordance with NETA ATS, except Section 4.

C. Perform inspections and tests listed in NETA ATS, Section 7.3.2. The insulationresistance test is required for all conductors. The resistance test for parallel conductorslisted as optional is not required.1. Disconnect surge protective devices (SPDs) prior to performing any high potential

testing. Replace SPDs damaged by performing high potential testing with SPDsconnected.

D. Correct deficiencies and replace damaged or defective conductors and cables.

END OF SECTION






















619453 26 05 26-1

SECTION 26 05 26 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

PART 1 GENERAL


A. Grounding and bonding requirements.

B. Conductors for grounding and bonding.

C. Connectors for grounding and bonding.


A. Section 26 05 19 - Low-Voltage Electrical Power Conductors and Cables: Additionalrequirements for conductors for grounding and bonding, including conductor colorcoding.1. Includes oxide inhibiting compound.

B. Section 26 05 53 - Identification for Electrical Systems: Identification products andrequirements.


A. IEEE 81 - IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and EarthSurface Potentials of a Grounding System; 2012.

B. NECA 1 - Standard for Good Workmanship in Electrical Construction; 2015.

C. NEMA GR 1 - Grounding Rod Electrodes and Grounding Rod Electrode Couplings; 2007.

D. NETA ATS - Acceptance Testing Specifications for Electrical Power Equipment andSystems; 2013.


F. NFPA 99 - Health Care Facilities Code; 2015.

G. UL 467 - Grounding and Bonding Equipment; Current Edition, Including All Revisions.


A. Coordination:

619453 26 05 26-2

1. Verify exact locations of underground metal water service pipe entrances tobuilding.

2. Coordinate the work with other trades to provide steel reinforcement complyingwith specified requirements for concrete-encased electrode.

3. Notify Engineer of any conflicts with or deviations from Contract Documents.Obtain direction before proceeding with work.

B. Sequencing:1. Do not install ground rod electrodes until final backfill and compaction is

complete.

1.5 SUBMITTALS

A. See Section 01 30 00 - Administrative Requirements for submittals procedures.

B. Product Data: Provide manufacturer's standard catalog pages and data sheets forgrounding and bonding system components.

C. Manufacturer's Instructions: Indicate application conditions and limitations of usestipulated by product testing agency. Include instructions for storage, handling,protection, examination, preparation, and installation of product.




A. Receive, inspect, handle, and store products in accordance with manufacturer'sinstructions.

PART 2 PRODUCTS

2.1 GROUNDING AND BONDING REQUIREMENTS

A. Existing Work: Where existing grounding and bonding system components areindicated to be reused, they may be reused only where they are free from corrosion,integrity and continuity are verified, and where acceptable to the authority havingjurisdiction.

B. Do not use products for applications other than as permitted by NFPA 70 and productlisting.

C. Unless specifically indicated to be excluded, provide all required components,conductors, connectors, conduit, boxes, fittings, supports, accessories, etc. as necessaryfor a complete grounding and bonding system.

619453 26 05 26-3

D. Where conductor size is not indicated, size to comply with NFPA 70 but not less thanapplicable minimum size requirements specified.

E. Grounding System Resistance:1. Achieve specified grounding system resistance under normally dry conditions

unless otherwise approved by Engineer. Precipitation within the previous 48hours does not constitute normally dry conditions.

2. Grounding Electrode System: Not greater than 5 ohms to ground, when testedaccording to IEEE 81 using "fall-of-potential" method.

3. Between Grounding Electrode System and Major Electrical Equipment Frames,System Neutral, and Derived Neutral Points: Not greater than 0.5 ohms, whentested using "point-to-point" methods.

F. Grounding Electrode System:1. Provide connection to required and supplemental grounding electrodes indicated

to form grounding electrode system.a. Provide continuous grounding electrode conductors without splice or joint.b. Install grounding electrode conductors in raceway where exposed to

physical damage. Bond grounding electrode conductor to metallicraceways at each end with bonding jumper.

2. Metal Underground Water Pipe(s):a. Provide connection to underground metal domestic and fire protection

(where present) water service pipe(s) that are in direct contact with earthfor at least 10 feet at an accessible location not more than 5 feet from thepoint of entrance to the building.

b. Provide bonding jumper(s) around insulating joints/pipes as required tomake pipe electrically continuous.

c. Provide bonding jumper around water meter of sufficient length to permitremoval of meter without disconnecting jumper.

3. Metal In-Ground Support Structure:a. Provide connection to metal in-ground support structure that is in direct

contact with earth in accordance with NFPA 70.

G. Service-Supplied System Grounding:1. For each service disconnect, provide grounding electrode conductor to connect

neutral (grounded) service conductor to grounding electrode system. Unlessotherwise indicated, make connection at neutral (grounded) bus in servicedisconnect enclosure.

2. For each service disconnect, provide main bonding jumper to connect neutral(grounded) bus to equipment ground bus where not factory-installed. Do notmake any other connections between neutral (grounded) conductors and groundon load side of service disconnect.

H. Bonding and Equipment Grounding:

619453 26 05 26-4

1. Provide bonding for equipment grounding conductors, equipment ground busses,metallic equipment enclosures, metallic raceways and boxes, device groundingterminals, and other normally non-current-carrying conductive materialsenclosing electrical conductors/equipment or likely to become energized asindicated and in accordance with NFPA 70.

2. Provide insulated equipment grounding conductor in each feeder and branchcircuit raceway. Do not use raceways as sole equipment grounding conductor.

3. Where circuit conductor sizes are increased for voltage drop, increase size ofequipment grounding conductor proportionally in accordance with NFPA 70.

4. Unless otherwise indicated, connect wiring device grounding terminal to branchcircuit equipment grounding conductor and to outlet box with bonding jumper.

5. Terminate branch circuit equipment grounding conductors on solidly bondedequipment ground bus only. Do not terminate on neutral (grounded) orisolated/insulated ground bus.

6. Provide bonding jumper across expansion or expansion/deflection fittingsprovided to accommodate conduit movement.

7. Provide bonding for interior metal piping systems in accordance with NFPA 70.This includes, but is not limited to:a. Metal water piping where not already effectively bonded to metal

underground water pipe used as grounding electrode.8. Provide redundant grounding and bonding for patient care areas of health care

facilities in accordance with NFPA 70 and NFPA 99.

I. Pole-Mounted Luminaires: Also comply with Section 26 56 00.

2.2 GROUNDING AND BONDING COMPONENTS

A. General Requirements:1. Provide products listed, classified, and labeled as suitable for the purpose

intended.2. Provide products listed and labeled as complying with UL 467 where applicable.

B. Conductors for Grounding and Bonding, in Addition to Requirements of Section 26 0526:1. Use insulated copper conductors unless otherwise indicated.

a. Exceptions:1) Use bare copper conductors where installed underground in direct

contact with earth.2) Use bare copper conductors where directly encased in concrete (not

in raceway).

C. Connectors for Grounding and Bonding:1. Description: Connectors appropriate for the application and suitable for the

conductors and items to be connected; listed and labeled as complying with UL467.


619453 26 05 26-5

2. Unless otherwise indicated, use exothermic welded connections forunderground, concealed and other inaccessible connections.

3. Unless otherwise indicated, use mechanical connectors, compression connectors,or exothermic welded connections for accessible connections.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that work likely to damage grounding and bonding system components has beencompleted.

B. Verify that field measurements are as indicated.

C. Verify that conditions are satisfactory for installation prior to starting work.

3.2 INSTALLATION

A. Install products in accordance with manufacturer's instructions.

B. Perform work in accordance with NECA 1 (general workmanship).

C. Make grounding and bonding connections using specified connectors.1. Remove appropriate amount of conductor insulation for making connections

without cutting, nicking or damaging conductors. Do not remove conductorstrands to facilitate insertion into connector.

2. Remove nonconductive paint, enamel, or similar coating at threads, contactpoints, and contact surfaces.

3. Exothermic Welds: Make connections using molds and weld material suitable forthe items to be connected in accordance with manufacturer's recommendations.

4. Mechanical Connectors: Secure connections according to manufacturer'srecommended torque settings.

5. Compression Connectors: Secure connections using manufacturer'srecommended tools and dies.

D. Identify grounding and bonding system components in accordance with Section 26 0553.



B. Inspect and test in accordance with NETA ATS except Section 4.

C. Perform inspections and tests listed in NETA ATS, Section 7.13.

































619453 26 05 26-6

D. Perform ground electrode resistance tests under normally dry conditions. Precipitationwithin the previous 48 hours does not constitute normally dry conditions.

E. Investigate and correct deficiencies where measured ground resistances do not complywith specified requirements.

END OF SECTION








619453 26 05 29-1

SECTION 26 05 29 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

PART 1 GENERAL


A. Support and attachment requirements and components for equipment, conduit, cable,boxes, and other electrical work.


A. Section 26 05 33.13 - Conduit for Electrical Systems: Additional support andattachment requirements for conduits.

B. Section 26 05 33.16 - Boxes for Electrical Systems: Additional support and attachmentrequirements for boxes.


A. MFMA-4 - Metal Framing Standards Publication; 2004.


C. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

D. UL 5B - Strut-Type Channel Raceways and Fittings; Current Edition, Including AllRevisions.


A. Coordination:1. Coordinate sizes and arrangement of supports and bases with the actual

equipment and components to be installed.2. Coordinate the work with other trades to provide additional framing and

materials required for installation.3. Coordinate compatibility of support and attachment components with mounting

surfaces at the installed locations.4. Coordinate the arrangement of supports with ductwork, piping, equipment and

other potential conflicts installed under other sections or by others.5. Notify Engineer of any conflicts with or deviations from Contract Documents.

Obtain direction before proceeding with work.

B. Sequencing:

619453 26 05 29-2

1. Do not install products on or provide attachment to concrete surfaces untilconcrete has fully cured in accordance with Section 03 30 00.

1.5 SUBMITTALS


B. Shop Drawings: Include details for fabricated hangers and supports where materials ormethods other than those indicated are proposed for substitution.

C. Manufacturer's Instructions: Indicate application conditions and limitations of usestipulated by product testing agency. Include instructions for storage, handling,protection, examination, preparation, and installation of product.


A. Comply with NFPA 70.

B. Comply with applicable building code.



PART 2 PRODUCTS

2.1 SUPPORT AND ATTACHMENT COMPONENTS

A. General Requirements:1. Provide all required hangers, supports, anchors, fasteners, fittings, accessories,

and hardware as necessary for the complete installation of electrical work.2. Provide products listed, classified, and labeled as suitable for the purpose

intended, where applicable.3. Where support and attachment component types and sizes are not indicated,

select in accordance with manufacturer's application criteria as required for theload to be supported. Include consideration for vibration, equipment operation,and shock loads where applicable.

4. Do not use products for applications other than as permitted by NFPA 70 andproduct listing.

5. Do not use wire, chain, perforated pipe strap, or wood for permanent supportsunless specifically indicated or permitted.

6. Steel Components: Use corrosion resistant materials suitable for theenvironment where installed.a. Indoor Dry Locations: Use zinc-plated steel or approved equivalent unless

otherwise indicated.

619453 26 05 29-3

b. Outdoor and Damp or Wet Indoor Locations: Use galvanized steel,stainless steel, or approved equivalent unless otherwise indicated.

B. Conduit and Cable Supports: Straps, clamps, etc. suitable for the conduit or cable to besupported.1. Conduit Straps: One-hole or two-hole type; steel or malleable iron.2. Conduit Clamps: Bolted type unless otherwise indicated.

C. Metal Channel (Strut) Framing Systems: Factory-fabricated continuous-slot metalchannel (strut) and associated fittings, accessories, and hardware required forfield-assembly of supports.1. Comply with MFMA-4.2. Channel (Strut) Used as Raceway (only where specifically indicated): Listed and

labeled as complying with UL 5B.3. Minimum Channel Thickness: Steel sheet, 12 gage, 0.1046 inch.4. Minimum Channel Dimensions: 1-5/8 inch width by 13/16 inch height.

D. Hanger Rods: Threaded zinc-plated steel unless otherwise indicated.1. Minimum Size, Unless Otherwise Indicated or Required:

a. Equipment Supports: 1/2 inch diameter.b. Single Conduit up to 1 inch (27 mm) trade size: 1/4 inch diameter.c. Single Conduit larger than 1 inch (27 mm) trade size: 3/8 inch diameter.d. Trapeze Support for Multiple Conduits: 3/8 inch diameter.e. Outlet Boxes: 1/4 inch diameter.f. Luminaires: 1/4 inch diameter.

E. Anchors and Fasteners:1. Unless otherwise indicated and where not otherwise restricted, use the anchor

and fastener types indicated for the specified applications.2. Post-Installed Concrete and Masonry Anchors: Evaluated and recognized by ICC

Evaluation Service, LLC (ICC-ES) for compliance with applicable building code.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that mounting surfaces are ready to receive support and attachmentcomponents.

B. Verify that conditions are satisfactory for installation prior to starting work.

3.2 INSTALLATION


619453 26 05 29-4


C. Install anchors and fasteners in accordance with ICC Evaluation Services, LLC (ICC-ES)evaluation report conditions of use where applicable.

D. Provide independent support from building structure. Do not provide support frompiping, ductwork, or other systems.

E. Unless specifically indicated or approved by Engineer, do not provide support fromsuspended ceiling support system or ceiling grid.

F. Unless specifically indicated or approved by Engineer, do not provide support from roofdeck.

G. Do not penetrate or otherwise notch or cut structural members without approval ofStructural Engineer.

H. Equipment Support and Attachment:1. Use metal fabricated supports or supports assembled from metal channel (strut)

to support equipment as required.2. Use metal channel (strut) secured to studs to support equipment

surface-mounted on hollow stud walls when wall strength is not sufficient toresist pull-out.

3. Use metal channel (strut) to support surface-mounted equipment in wet or damplocations to provide space between equipment and mounting surface.

4. Unless otherwise indicated, mount floor-mounted equipment on properly sized 4inch high concrete pad constructed in accordance with Section 03 30 00.

5. Securely fasten floor-mounted equipment. Do not install equipment such that itrelies on its own weight for support.

I. Conduit Support and Attachment: Also comply with Section 26 05 33.13.

J. Box Support and Attachment: Also comply with Section 26 05 33.16.

K. Interior Luminaire Support and Attachment: Also comply with Section 26 51 00.

L. Exterior Luminaire Support and Attachment: Also comply with Section 26 56 00.

M. Secure fasteners according to manufacturer's recommended torque settings.

N. Remove temporary supports.

O. Identify independent electrical component support wires above accessible ceilings (onlywhere specifically indicated or permitted) with color distinguishable from ceilingsupport wires in accordance with NFPA 70.

619453 26 05 29-5



B. Inspect support and attachment components for damage and defects.

C. Repair cuts and abrasions in galvanized finishes using zinc-rich paint recommended bymanufacturer. Replace components that exhibit signs of corrosion.

D. Correct deficiencies and replace damaged or defective support and attachmentcomponents.

END OF SECTION


619453 26 05 33.13-1

SECTION 26 05 33.13 - CONDUIT FOR ELECTRICAL SYSTEMS

PART 1 GENERAL


A. Galvanized steel rigid metal conduit (RMC).

B. Aluminum rigid metal conduit (RMC).

C. Intermediate metal conduit (IMC).

D. PVC-coated galvanized steel rigid metal conduit (RMC).

E. Flexible metal conduit (FMC).

F. Electrical metallic tubing (EMT).

G. Rigid polyvinyl chloride (PVC) conduit.

H. Conduit fittings.

I. Accessories.


A. Section 26 05 19 - Low-Voltage Electrical Power Conductors and Cables: Metal cladcable (Type MC), armored cable (Type AC), and manufactured wiring systems, includinguses permitted.

B. Section 26 05 26 - Grounding and Bonding for Electrical Systems.1. Includes additional requirements for fittings for grounding and bonding.

C. Section 26 05 29 - Hangers and Supports for Electrical Systems.

D. Section 26 05 33.16 - Boxes for Electrical Systems.

E. Section 26 05 33.23 - Surface Raceways for Electrical Systems.

F. Section 26 05 53 - Identification for Electrical Systems: Identification products andrequirements.

619453 26 05 33.13-2


A. ANSI C80.1 - American National Standard for Electrical Rigid Steel Conduit (ERSC); 2015.

B. ANSI C80.3 - American National Standard for Electrical Metallic Tubing -- Steel (EMT-S);2015.

C. ANSI C80.5 - American National Standard for Electrical Rigid Metal Conduit -- Aluminum(ERMC-A); 2015.

D. ANSI C80.6 - American National Standard for Electrical Intermediate Metal Conduit(EIMC); 2005.

E. NECA 1 - Standard for Good Workmanship in Electrical Construction; 2015.

F. NECA 101 - Standard for Installing Steel Conduits (Rigid, IMC, EMT); 2013.

G. NECA 102 - Standard for Installing Aluminum Rigid Metal Conduit; 2004.

H. NECA 111 - Standard for Installing Nonmetallic Raceways (RNC, ENT, LFNC); 2003.

I. NEMA FB 1 - Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit, ElectricalMetallic Tubing, and Cable; 2014.

J. NEMA RN 1 - Polyvinyl-Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduitand Intermediate Metal Conduit; 2005 (R2013).

K. NEMA TC 2 - Electrical Polyvinyl Chloride (PVC) Conduit; 2013.

L. NEMA TC 3 - Polyvinyl Chloride (PVC) Fittings for Use with Rigid PVC Conduit andTubing; 2015.

M. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

N. UL 1 - Flexible Metal Conduit; Current Edition, Including All Revisions.

O. UL 6 - Electrical Rigid Metal Conduit-Steel; Current Edition, Including All Revisions.

P. UL 6A - Electrical Rigid Metal Conduit-Aluminum, Red Brass, and Stainless Steel; CurrentEdition, Including All Revisions.

Q. UL 360 - Liquid-Tight Flexible Steel Conduit; Current Edition, Including All Revisions.

619453 26 05 33.13-3

R. UL 514B - Conduit, Tubing, and Cable Fittings; Current Edition, Including All Revisions.

S. UL 651 - Schedule 40, 80, Type EB and A Rigid PVC Conduit and Fittings; Current Edition,Including All Revisions.

T. UL 797 - Electrical Metallic Tubing-Steel; Current Edition, Including All Revisions.

U. UL 1203 - Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use inHazardous (Classified) Locations; Current Edition, Including All Revisions.

V. UL 1242 - Electrical Intermediate Metal Conduit-Steel; Current Edition, Including AllRevisions.


A. Coordination:1. Coordinate minimum sizes of conduits with the actual conductors to be installed,

including adjustments for conductor sizes increased for voltage drop.2. Coordinate the arrangement of conduits with structural members, ductwork,

piping, equipment and other potential conflicts installed under other sections orby others.

3. Verify exact conduit termination locations required for boxes, enclosures, andequipment installed under other sections or by others.

4. Coordinate the work with other trades to provide roof penetrations that preservethe integrity of the roofing system and do not void the roof warranty.


B. Sequencing:1. Do not begin installation of conductors and cables until installation of conduit is

complete between outlet, junction and splicing points.

1.5 SUBMITTALS


B. Product Data: Provide manufacturer's standard catalog pages and data sheets forconduits and fittings.

C. Project Record Documents: Record actual routing for conduits installed underground,conduits embedded within concrete slabs, and conduits 2 inch (53 mm) trade size andlarger.

619453 26 05 33.13-4




A. Receive, inspect, handle, and store conduit and fittings in accordance withmanufacturer's instructions.

PART 2 PRODUCTS

2.1 CONDUIT APPLICATIONS

A. Do not use conduit and associated fittings for applications other than as permitted byNFPA 70 and product listing.

B. Unless otherwise indicated and where not otherwise restricted, use the conduit typesindicated for the specified applications. Where more than one listed application applies,comply with the most restrictive requirements. Where conduit type for a particularapplication is not specified, use galvanized steel rigid metal conduit.

C. Concealed Within Masonry Walls: Use galvanized steel rigid metal conduit,intermediate metal conduit (IMC), or electrical metallic tubing (EMT).

D. Concealed Within Hollow Stud Walls: Use galvanized steel rigid metal conduit,intermediate metal conduit (IMC), or electrical metallic tubing (EMT).

E. Concealed Above Accessible Ceilings: Use galvanized steel rigid metal conduit,intermediate metal conduit (IMC), or electrical metallic tubing (EMT).

F. Interior, Damp or Wet Locations: Use galvanized steel rigid metal conduit orPVC-coated galvanized steel rigid metal conduit.

G. Exposed, Interior, Not Subject to Physical Damage: Use intermediate metal conduit(IMC) or electrical metallic tubing (EMT).

H. Exposed, Interior, Subject to Physical Damage: Use intermediate metal conduit (IMC).1. Locations subject to physical damage include, but are not limited to:

a. Where exposed below 8 feet, except within electrical and communicationrooms or closets.

I. Exposed, Exterior: Use intermediate metal conduit (IMC) or PVC-coated galvanizedsteel rigid metal conduit.






















619453 26 05 33.13-5

J. Concealed, Exterior, Not Embedded in Concrete or in Contact With Earth: Useintermediate metal conduit (IMC).

K. Connections to Vibrating Equipment:1. Dry Locations: Use flexible metal conduit.2. Damp, Wet, or Corrosive Locations: Use liquidtight flexible metal conduit.3. Maximum Length: 6 feet unless otherwise indicated.4. Vibrating equipment includes, but is not limited to:

a. Motors.

2.2 CONDUIT REQUIREMENTS

A. Existing Work: Where existing conduits are indicated to be reused, they may be reusedonly where they comply with specified requirements, are free from corrosion, andintegrity is verified by pulling a mandrel through them.

B. Fittings for Grounding and Bonding: Also comply with Section 26 05 26.

C. Provide all conduit, fittings, supports, and accessories required for a complete racewaysystem.

D. Provide products listed, classified, and labeled as suitable for the purpose intended.

E. Minimum Conduit Size, Unless Otherwise Indicated:1. Branch Circuits: 3/4 inch (21 mm) trade size.2. Branch Circuit Homeruns: 3/4 inch (21 mm) trade size.3. Control Circuits: 1/2 inch (16 mm) trade size.4. Flexible Connections to Luminaires: 3/8 inch (12 mm) trade size.5. Underground, Interior: 1 inch (27 mm) trade size.

F. Where conduit size is not indicated, size to comply with NFPA 70 but not less thanapplicable minimum size requirements specified.

2.3 GALVANIZED STEEL RIGID METAL CONDUIT (RMC)

A. Description: NFPA 70, Type RMC galvanized steel rigid metal conduit complying withANSI C80.1 and listed and labeled as complying with UL 6.

B. Fittings:1. Non-Hazardous Locations: Use fittings complying with NEMA FB 1 and listed and

labeled as complying with UL 514B.2. Material: Use steel or malleable iron.3. Connectors and Couplings: Use threaded type fittings only. Threadless set screw

and compression (gland) type fittings are not permitted.




























http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ANSI%20C80.1







619453 26 05 33.13-6

2.4 ALUMINUM RIGID METAL CONDUIT (RMC)

A. Description: NFPA 70, Type RMC aluminum rigid metal conduit complying with ANSIC80.5 and listed and labeled as complying with UL 6A.


labeled as complying with UL 514B.2. Material: Use aluminum.3. Connectors and Couplings: Use threaded type fittings only. Threadless set screw


2.5 INTERMEDIATE METAL CONDUIT (IMC)

A. Description: NFPA 70, Type IMC galvanized steel intermediate metal conduit complyingwith ANSI C80.6 and listed and labeled as complying with UL 1242.


labeled as complying with UL 514B.2. Material: Use steel or malleable iron.3. Connectors and Couplings: Use threaded type fittings only. Threadless set screw


2.6 PVC-COATED GALVANIZED STEEL RIGID METAL CONDUIT (RMC)

A. Description: NFPA 70, Type RMC galvanized steel rigid metal conduit with externalpolyvinyl chloride (PVC) coating complying with NEMA RN 1 and listed and labeled ascomplying with UL 6.

B. Exterior Coating: Polyvinyl chloride (PVC), nominal thickness of 40 mil.

C. Interior Coating: Urethane, minimum thickness of 2 mil.

D. PVC-Coated Fittings:1. Manufacturer: Same as manufacturer of PVC-coated conduit to be installed.2. Non-Hazardous Locations: Use fittings listed and labeled as complying with UL

514B.3. Hazardous (Classified) Locations: Use fittings listed and labeled as complying with

UL 1203 for the classification of the installed location.4. Material: Use steel or malleable iron.5. Exterior Coating: Polyvinyl chloride (PVC), minimum thickness of 40 mil.6. Interior Coating: Urethane, minimum thickness of 2 mil.





























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619453 26 05 33.13-7

E. PVC-Coated Supports: Furnish with exterior coating of polyvinyl chloride (PVC),minimum thickness of 15 mil.

2.7 FLEXIBLE METAL CONDUIT (FMC)

A. Description: NFPA 70, Type FMC standard wall steel flexible metal conduit listed andlabeled as complying with UL 1, and listed for use in classified firestop systems to beused.

B. Fittings:1. Description: Fittings complying with NEMA FB 1 and listed and labeled as

complying with UL 514B.2. Material: Use steel or malleable iron.

2.8 ELECTRICAL METALLIC TUBING (EMT)

A. Description: NFPA 70, Type EMT steel electrical metallic tubing complying with ANSIC80.3 and listed and labeled as complying with UL 797.

B. Fittings:1. Description: Fittings complying with NEMA FB 1 and listed and labeled as

complying with UL 514B.2. Material: Use steel or malleable iron.3. Connectors and Couplings: Use compression (gland) or set-screw type.

a. Do not use indenter type connectors and couplings.4. Damp or Wet Locations (where permitted): Use fittings listed for use in wet

locations.5. Embedded Within Concrete (where permitted): Use fittings listed as

concrete-tight. Fittings that require taping to be concrete-tight are acceptable.

2.9 RIGID POLYVINYL CHLORIDE (PVC) CONDUIT

A. Description: NFPA 70, Type PVC rigid polyvinyl chloride conduit complying with NEMATC 2 and listed and labeled as complying with UL 651; Schedule 40 unless otherwiseindicated, Schedule 80 where subject to physical damage; rated for use with conductorsrated 90 degrees C.

B. Fittings:1. Manufacturer: Same as manufacturer of conduit to be connected.2. Description: Fittings complying with NEMA TC 3 and listed and labeled as

complying with UL 651; material to match conduit.



























http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=NEMA%20TC%202







619453 26 05 33.13-8

2.10 ACCESSORIES

A. Conduit Joint Compound: Corrosion-resistant, electrically conductive; suitable for usewith the conduit to be installed.

B. Solvent Cement for PVC Conduit and Fittings: As recommended by manufacturer ofconduit and fittings to be installed.

C. Pull Strings: Use nylon cord with average breaking strength of not less than 200pound-force.

D. Sealing Compound for Sealing Fittings: Listed for use with the particular fittings to beinstalled.

E. Modular Seals for Conduit Penetrations: Rated for minimum of 40 psig; Suitable for theconduits to be installed.

F. Sealing Systems for Roof Penetrations: Premanufactured components and accessoriesas required to preserve integrity of roofing system and maintain roof warranty; suitablefor conduits and roofing system to be installed; designed to accommodate existingpenetrations where applicable.

G. Flashing Panels for Exterior Wall Penetrations: Premanufactured components andaccessories as required to preserve integrity of building envelope; suitable for conduitsand facade materials to be installed.

H. Firestop Sleeves: Listed; provide as required to preserve fire resistance rating ofbuilding elements.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that mounting surfaces are ready to receive conduits.


3.2 INSTALLATION



C. Install galvanized steel rigid metal conduit (RMC) in accordance with NECA 101.






























619453 26 05 33.13-9

D. Install aluminum rigid metal conduit (RMC) in accordance with NECA 102.

E. Install intermediate metal conduit (IMC) in accordance with NECA 101.

F. Install PVC-coated galvanized steel rigid metal conduit (RMC) using only tools approvedby the manufacturer.

G. Install rigid polyvinyl chloride (PVC) conduit in accordance with NECA 111.

H. Conduit Routing:1. Unless dimensioned, conduit routing indicated is diagrammatic.2. When conduit destination is indicated without specific routing, determine exact

routing required.3. Conduits in the following areas may be exposed, unless otherwise indicated:

a. Electrical rooms.b. Mechanical equipment rooms.c. Within joists in areas with no ceiling.

4. Unless otherwise approved, do not route conduits exposed:a. Across floors.b. Across roofs.c. Across top of parapet walls.d. Across building exterior surfaces.

5. Conduits installed underground or embedded in concrete may be routed in theshortest possible manner unless otherwise indicated. Route all other conduitsparallel or perpendicular to building structure and surfaces, following surfacecontours where practical.

6. Arrange conduit to maintain adequate headroom, clearances, and access.7. Arrange conduit to provide no more than the equivalent of four 90 degree bends

between pull points.8. Arrange conduit to provide no more than 150 feet between pull points.9. Route conduits above water and drain piping where possible.10. Arrange conduit to prevent moisture traps. Provide drain fittings at low points

and at sealing fittings where moisture may collect.11. Maintain minimum clearance of 6 inches between conduits and piping for other

systems.12. Maintain minimum clearance of 12 inches between conduits and hot surfaces.

This includes, but is not limited to:a. Heaters.b. Hot water piping.c. Flues.

13. Group parallel conduits in the same area together on a common rack.

I. Conduit Support:








































619453 26 05 33.13-10

1. Secure and support conduits in accordance with NFPA 70 and Section 26 05 29using suitable supports and methods approved by the authority havingjurisdiction.

2. Provide independent support from building structure. Do not provide supportfrom piping, ductwork, or other systems.

3. Installation Above Suspended Ceilings: Do not provide support from ceilingsupport system. Do not provide support from ceiling grid or allow conduits to layon ceiling tiles.

4. Use conduit strap to support single surface-mounted conduit.a. Use clamp back spacer with conduit strap for damp and wet locations to

provide space between conduit and mounting surface.5. Use metal channel (strut) with accessory conduit clamps to support multiple

parallel surface-mounted conduits.6. Use conduit clamp to support single conduit from beam clamp or threaded rod.7. Use trapeze hangers assembled from threaded rods and metal channel (strut)

with accessory conduit clamps to support multiple parallel suspended conduits.8. Use of spring steel conduit clips for support of conduits is permitted only as

follows:a. Support of electrical metallic tubing (EMT) up to 1 inch (27 mm) trade size

concealed above accessible ceilings and within hollow stud walls.9. Use of wire for support of conduits is permitted only as follows:

a. For securing conduits to studs in hollow stud walls.b. For suspending conduits supported by spring steel conduit clips (only

where specifically indicated or permitted).10. Where conduit support intervals specified in NFPA 70 and NECA standards differ,

comply with the most stringent requirements.

J. Connections and Terminations:1. Use approved zinc-rich paint or conduit joint compound on field-cut threads of

galvanized steel conduits prior to making connections.2. Where two threaded conduits must be joined and neither can be rotated, use

three-piece couplings or split couplings. Do not use running threads.3. Use suitable adapters where required to transition from one type of conduit to

another.4. Provide drip loops for liquidtight flexible conduit connections to prevent drainage

of liquid into connectors.5. Terminate threaded conduits in boxes and enclosures using threaded hubs or

double lock nuts for dry locations and raintight hubs for wet locations.6. Where spare conduits stub up through concrete floors and are not terminated in

a box or enclosure, provide threaded couplings equipped with threaded plugs setflush with finished floor.

7. Provide insulating bushings or insulated throats at all conduit terminations toprotect conductors.

8. Secure joints and connections to provide maximum mechanical strength andelectrical continuity.














































619453 26 05 33.13-11

K. Penetrations:1. Do not penetrate or otherwise notch or cut structural members, including

footings and grade beams, without approval of Structural Engineer.2. Make penetrations perpendicular to surfaces unless otherwise indicated.3. Provide sleeves for penetrations as indicated or as required to facilitate

installation. Set sleeves flush with exposed surfaces unless otherwise indicated orrequired.

4. Seal interior of conduits entering the building from underground at firstaccessible point to prevent entry of moisture and gases.

5. Where conduits penetrate waterproof membrane, seal as required to maintainintegrity of membrane.

6. Install firestopping to preserve fire resistance rating of partitions and otherelements, using materials and methods specified in Section 07 84 00.

L. Underground Installation:1. Provide trenching and backfilling in accordance with Section 31 23 16 and Section

31 23 23.2. Minimum Cover, Unless Otherwise Indicated or Required:

a. Underground, Exterior: 24 inches.b. Under Slab on Grade: 12 inches to bottom of slab.

3. Provide underground warning tape in accordance with Section 26 05 53 alongentire conduit length for service entrance where not concrete-encased.

M. Embedment Within Structural Concrete Slabs (only where approved by StructuralEngineer):1. Include proposed conduit arrangement with submittals.2. Secure conduits to prevent floating or movement during pouring of concrete.

N. Conduit Movement Provisions: Where conduits are subject to movement, provideexpansion and expansion/deflection fittings to prevent damage to enclosed conductorsor connected equipment. This includes, but is not limited to:1. Where conduits cross structural joints intended for expansion, contraction, or

deflection.2. Where calculated in accordance with NFPA 70 for rigid polyvinyl chloride (PVC)

conduit installed above ground to compensate for thermal expansion andcontraction.

3. Where conduits are subject to earth movement by settlement or frost.

O. Condensation Prevention: Where conduits cross barriers between areas of potentialsubstantial temperature differential, provide sealing fitting or approved sealingcompound at an accessible point near the penetration to prevent condensation. Thisincludes, but is not limited to:1. Where conduits pass from outdoors into conditioned interior spaces.2. Where conduits pass from unconditioned interior spaces into conditioned interior

spaces.











































619453 26 05 33.13-12

P. Provide pull string in all empty conduits and in conduits where conductors and cablesare to be installed by others. Leave minimum slack of 12 inches at each end.

Q. Provide grounding and bonding in accordance with Section 26 05 26.

R. Identify conduits in accordance with Section 26 05 53.



B. Repair cuts and abrasions in galvanized finishes using zinc-rich paint recommended bymanufacturer. Replace components that exhibit signs of corrosion.

C. Where coating of PVC-coated galvanized steel rigid metal conduit (RMC) contains cutsor abrasions, repair in accordance with manufacturer's instructions.

D. Correct deficiencies and replace damaged or defective conduits.

3.4 CLEANING

A. Clean interior of conduits to remove moisture and foreign matter.

3.5 PROTECTION

A. Immediately after installation of conduit, use suitable manufactured plugs to provideprotection from entry of moisture and foreign material and do not remove until readyfor installation of conductors.

END OF SECTION





















619453 26 05 33.16-1

SECTION 26 05 33.16 - BOXES FOR ELECTRICAL SYSTEMS

PART 1 GENERAL


A. Outlet and device boxes up to 100 cubic inches, including those used as junction andpull boxes.

B. Cabinets and enclosures, including junction and pull boxes larger than 100 cubic inches.


A. Section 03 30 00 - Cast-in-Place Concrete.

B. Section 08 31 00 - Access Doors and Panels: Panels for maintaining access to concealedboxes.

C. Section 26 05 26 - Grounding and Bonding for Electrical Systems.

D. Section 26 05 29 - Hangers and Supports for Electrical Systems.

E. Section 26 05 33.13 - Conduit for Electrical Systems:1. Conduit bodies and other fittings.2. Additional requirements for locating boxes to limit conduit length and/or number

of bends between pulling points.

F. Section 26 05 53 - Identification for Electrical Systems: Identification products andrequirements.


A. NECA 1 - Standard for Good Workmanship in Electrical Construction; 2015.

B. NECA 130 - Standard for Installing and Maintaining Wiring Devices; 2010.

C. NEMA FB 1 - Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit, ElectricalMetallic Tubing, and Cable; 2014.

D. NEMA OS 1 - Sheet-Steel Outlet Boxes, Device Boxes, Covers, and Box Supports; 2013.

E. NEMA OS 2 - Nonmetallic Outlet Boxes, Device Boxes, Covers and Box Supports; 2013.

F. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum); 2014.

619453 26 05 33.16-2

G. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

H. SCTE 77 - Specification for Underground Enclosure Integrity; 2013.

I. UL 50 - Enclosures for Electrical Equipment, Non-Environmental Considerations; CurrentEdition, Including All Revisions.

J. UL 50E - Enclosures for Electrical Equipment, Environmental Considerations; CurrentEdition, Including All Revisions.

K. UL 508A - Industrial Control Panels; Current Edition, Including All Revisions.

L. UL 514A - Metallic Outlet Boxes; Current Edition, Including All Revisions.

M. UL 514C - Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers; Current Edition,Including All Revisions.


A. Coordination:1. Coordinate the work with other trades to avoid placement of ductwork, piping,

equipment, or other potential obstructions within the dedicated equipmentspaces and working clearances for electrical equipment required by NFPA 70.

2. Coordinate arrangement of electrical equipment with the dimensions andclearance requirements of the actual equipment to be installed.

3. Coordinate minimum sizes of boxes with the actual installed arrangement ofconductors, clamps, support fittings, and devices, calculated according to NFPA70.

4. Coordinate minimum sizes of pull boxes with the actual installed arrangement ofconnected conduits, calculated according to NFPA 70.

5. Coordinate the placement of boxes with millwork, furniture, devices, equipment,etc. installed under other sections or by others.

6. Coordinate the work with other trades to preserve insulation integrity.7. Coordinate the work with other trades to provide walls suitable for installation of

flush-mounted boxes where indicated.8. Notify Engineer of any conflicts with or deviations from Contract Documents.

Obtain direction before proceeding with work.

1.5 SUBMITTALS














619453 26 05 33.16-3

B. Product Data: Provide manufacturer's standard catalog pages and data sheets forcabinets and enclosures, boxes for hazardous (classified) locations, floor boxes, andunderground boxes/enclosures.1. Underground Boxes/Enclosures: Include reports for load testing in accordance

with SCTE 77 certified by a professional engineer or an independent testingagency upon request.

C. Manufacturer's Installation Instructions: Indicate application conditions and limitationsof use stipulated by product testing agency. Include instructions for storage, handling,protection, examination, preparation, and installation of product.

D. Project Record Documents: Record actual locations for outlet and device boxes, pullboxes, cabinets and enclosures, floor boxes, and underground boxes/enclosures.

E. Maintenance Materials: Furnish the following for Wicomico County Public Schools'suse in maintenance of project.1. See Section 01 60 00 - Product Requirements, for additional provisions.2. Keys for Lockable Enclosures: Two of each different key.



B. Product Listing Organization Qualifications: An organization recognized by OSHA as aNationally Recognized Testing Laboratory (NRTL) and acceptable to authorities havingjurisdiction.



PART 2 PRODUCTS

2.1 BOXES

A. General Requirements:1. Do not use boxes and associated accessories for applications other than as

permitted by NFPA 70 and product listing.2. Provide all boxes, fittings, supports, and accessories required for a complete

raceway system and to accommodate devices and equipment to be installed.3. Provide products listed, classified, and labeled as suitable for the purpose

intended.4. Where box size is not indicated, size to comply with NFPA 70 but not less than

applicable minimum size requirements specified.




































619453 26 05 33.16-4

5. Provide grounding terminals within boxes where equipment groundingconductors terminate.

B. Outlet and Device Boxes Up to 100 cubic inches, Including Those Used as Junction andPull Boxes:1. Use sheet-steel boxes for dry locations unless otherwise indicated or required.2. Use cast iron boxes or cast aluminum boxes for damp or wet locations unless

otherwise indicated or required; furnish with compatible weatherproof gasketedcovers.

3. Use cast iron boxes or cast aluminum boxes where exposed intermediate metalconduit (IMC) is used.

4. Use nonmetallic boxes where exposed rigid PVC conduit is used.5. Use suitable concrete type boxes where flush-mounted in concrete.6. Use suitable masonry type boxes where flush-mounted in masonry walls.7. Use raised covers suitable for the type of wall construction and device

configuration where required.8. Use shallow boxes where required by the type of wall construction.9. Do not use "through-wall" boxes designed for access from both sides of wall.10. Sheet-Steel Boxes: Comply with NEMA OS 1, and list and label as complying with

UL 514A.11. Cast Metal Boxes: Comply with NEMA FB 1, and list and label as complying with

UL 514A; furnish with threaded hubs.12. Nonmetallic Boxes: Comply with NEMA OS 2, and list and label as complying with

UL 514C.13. Boxes for Supporting Luminaires and Ceiling Fans: Listed as suitable for the type

and weight of load to be supported; furnished with fixture stud to accommodatemounting of luminaire where required.

14. Boxes for Ganged Devices: Use multigang boxes of single-piece construction. Donot use field-connected gangable boxes unless specifically indicated or permitted.

15. Minimum Box Size, Unless Otherwise Indicated:a. Wiring Devices (Other Than Communications Systems Outlets): 4 inch

square by 1-1/2 inch deep (100 by 38 mm) trade size.b. Communications Systems Outlets: 4 inch square by 2-1/8 inch (100 by 54

mm) trade size.c. Ceiling Outlets: 4 inch octagonal or square by 1-1/2 inch deep (100 by 38

mm) trade size.16. Wall Plates: Comply with Section 26 27 26.

C. Cabinets and Enclosures, Including Junction and Pull Boxes Larger Than 100 cubicinches:1. Comply with NEMA 250, and list and label as complying with UL 50 and UL 50E, or

UL 508A.2. NEMA 250 Environment Type, Unless Otherwise Indicated:

a. Indoor Clean, Dry Locations: Type 1, painted steel.b. Outdoor Locations: Type 3R, painted steel.

3. Junction and Pull Boxes Larger Than 100 cubic inches:




















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619453 26 05 33.16-5

a. Provide screw-cover or hinged-cover enclosures unless otherwiseindicated.

4. Cabinets and Hinged-Cover Enclosures, Other Than Junction and Pull Boxes:a. Provide lockable hinged covers, all locks keyed alike unless otherwise

indicated.b. Back Panels: Painted steel, removable.c. Terminal Blocks: Provide voltage/current ratings and terminal quantity

suitable for purpose indicated, with 25 percent spare terminal capacity.5. Finish for Painted Steel Enclosures: Manufacturer's standard grey unless

otherwise indicated.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that mounting surfaces are ready to receive boxes.


3.2 INSTALLATION


B. Install boxes in accordance with NECA 1 (general workmanship) and, where applicable,NECA 130, including mounting heights specified in those standards where mountingheights are not indicated.

C. Arrange equipment to provide minimum clearances in accordance with manufacturer'sinstructions and NFPA 70.

D. Provide separate boxes for emergency power and normal power systems.

E. Unless otherwise indicated, provide separate boxes for line voltage and low voltagesystems.

F. Flush-mount boxes in finished areas unless specifically indicated to be surface-mounted.

G. Unless otherwise indicated, boxes may be surface-mounted where exposed conduitsare indicated or permitted.

H. Box Locations:1. Locate boxes to be accessible. Provide access panels in accordance with Section

08 31 00 as required where approved by the Architect.2. Unless dimensioned, box locations indicated are approximate.3. Locate boxes as required for devices installed under other sections or by others.



















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619453 26 05 33.16-6

a. Switches, Receptacles, and Other Wiring Devices: Comply with Section 2627 26.

4. Locate boxes so that wall plates do not span different building finishes.5. Locate boxes so that wall plates do not cross masonry joints.6. Unless otherwise indicated, where multiple outlet boxes are installed at the same

location at different mounting heights, install along a common vertical centerline.

7. Do not install flush-mounted boxes on opposite sides of walls back-to-back.Provide minimum 6 inches horizontal separation unless otherwise indicated.

8. Acoustic-Rated Walls: Do not install flush-mounted boxes on opposite sides ofwalls back-to-back; provide minimum 24 inches horizontal separation.

9. Fire Resistance Rated Walls: Install flush-mounted boxes such that the requiredfire resistance will not be reduced.a. Do not install flush-mounted boxes on opposite sides of walls

back-to-back; provide minimum 24 inches separation where wall isconstructed with individual noncommunicating stud cavities or protectboth boxes with listed putty pads.

b. Do not install flush-mounted boxes with area larger than 16 square inchesor such that the total aggregate area of openings exceeds 100 squareinches for any 100 square feet of wall area.

10. Locate junction and pull boxes in the following areas, unless otherwise indicatedor approved by the Architect:a. Concealed above accessible suspended ceilings.b. Within joists in areas with no ceiling.c. Electrical rooms.d. Mechanical equipment rooms.

I. Box Supports:1. Secure and support boxes in accordance with NFPA 70 and Section 26 05 29 using

suitable supports and methods approved by the authority having jurisdiction.2. Provide independent support from building structure except for cast metal boxes

(other than boxes used for fixture support) supported by threaded conduitconnections in accordance with NFPA 70. Do not provide support from piping,ductwork, or other systems.

3. Installation Above Suspended Ceilings: Do not provide support from ceiling gridor ceiling support system.

4. Use far-side support to secure flush-mounted boxes supported from single studin hollow stud walls. Repair or replace supports for boxes that permit excessivemovement.

J. Install boxes plumb and level.

K. Flush-Mounted Boxes:1. Install boxes in noncombustible materials such as concrete, tile, gypsum, plaster,

etc. so that front edge of box or associated raised cover is not set back fromfinished surface more than 1/4 inch or does not project beyond finished surface.













































619453 26 05 33.16-7

2. Install boxes in combustible materials such as wood so that front edge of box orassociated raised cover is flush with finished surface.

3. Repair rough openings around boxes in noncombustible materials such asconcrete, tile, gypsum, plaster, etc. so that there are no gaps or open spacesgreater than 1/8 inch at the edge of the box.

L. Floor-Mounted Cabinets: Mount on properly sized 3 inch high concrete padconstructed in accordance with Section 03 30 00.

M. Install boxes as required to preserve insulation integrity.

N. Metallic Floor Boxes: Install box level at the proper elevation to be flush with finishedfloor.

O. Underground Boxes/Enclosures:1. Install enclosure on gravel base, minimum 6 inches deep.2. Flush-mount enclosures located in concrete or paved areas.3. Mount enclosures located in landscaped areas with top at 1 inch above finished

grade.4. Provide cast-in-place concrete collar constructed in accordance with Section 03

30 00, minimum 10 inches wide by 12 inches deep, around enclosures that arenot located in concrete areas.

5. Install additional bracing inside enclosures in accordance with manufacturer'sinstructions to minimize box sidewall deflections during backfilling. Backfill withcover bolted in place.

P. Install permanent barrier between ganged wiring devices when voltage betweenadjacent devices exceeds 300 V.

Q. Install firestopping to preserve fire resistance rating of partitions and other elements,using materials and methods specified in Section 07 84 00.

R. Close unused box openings.

S. Install blank wall plates on junction boxes and on outlet boxes with no devices orequipment installed or designated for future use.

T. Provide grounding and bonding in accordance with Section 26 05 26.

U. Identify boxes in accordance with Section 26 05 53.

3.3 CLEANING

A. Clean interior of boxes to remove dirt, debris, plaster and other foreign material.


































619453 26 05 33.16-8

3.4 PROTECTION

A. Immediately after installation, protect boxes from entry of moisture and foreignmaterial until ready for installation of conductors.

END OF SECTION







619453 26 05 53-1

SECTION 26 05 53 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

PART 1 GENERAL


A. Electrical identification requirements.

B. Identification nameplates and labels.

C. Wire and cable markers.

D. Voltage markers.

E. Floor marking tape.

F. Warning signs and labels.


A. Section 26 05 19 - Low-Voltage Electrical Power Conductors and Cables: Color codingfor power conductors and cables 600 V and less; vinyl color coding electrical tape.


A. ANSI Z535.2 - American National Standard for Environmental and Facility Safety Signs;2011.

B. ANSI Z535.4 - American National Standard for Product Safety Signs and Labels; 2011.

C. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

D. UL 969 - Marking and Labeling Systems; Current Edition, Including All Revisions.


A. Coordination:1. Verify final designations for equipment, systems, and components to be

identified prior to fabrication of identification products.

B. Sequencing:1. Do not conceal items to be identified, in locations such as above suspended

ceilings, until identification products have been installed.

619453 26 05 53-2

2. Do not install identification products until final surface finishes and painting arecomplete.

1.5 SUBMITTALS


B. Shop Drawings: Provide schedule of items to be identified indicating proposeddesignations, materials, legends, and formats.

C. Samples:1. Identification Nameplates: One of each type and color specified.2. Warning Signs and Labels: One of each type and legend specified.




A. Do not install adhesive products when ambient temperature is lower thanrecommended by manufacturer.

PART 2 PRODUCTS

2.1 IDENTIFICATION REQUIREMENTS

A. Existing Work: Unless specifically excluded, identify existing elements to remain thatare not already identified in accordance with specified requirements.

B. Identification for Equipment:1. Use identification nameplate to identify each piece of electrical distribution and

control equipment and associated sections, compartments, and components.a. Panelboards:

1) Identify ampere rating.2) Identify voltage and phase.3) Identify power source and circuit number. Include location when not

within sight of equipment.4) Use typewritten circuit directory to identify load(s) served for

panelboards with a door. Identify spares and spaces.5) For power panelboards without a door, use identification nameplate

to identify load(s) served for each branch device. Do not identifyspares and spaces.

b. Enclosed switches and motor controllers:1) Identify voltage and phase.

619453 26 05 53-3

2) Identify power source and circuit number. Include location when notwithin sight of equipment.

3) Identify load(s) served. Include location when not within sight ofequipment.

2. Service Equipment:a. Use identification nameplate to identify each service disconnecting means.b. For buildings or structures supplied by more than one service, or any

combination of branch circuits, feeders, and services, use identificationnameplate or means of identification acceptable to authority havingjurisdiction at each service disconnecting means to identify all otherservices, feeders, and branch circuits supplying that building or structure.Verify format and descriptions with authority having jurisdiction.

3. Emergency System Equipment:a. Use identification nameplate or voltage marker to identify emergency

system equipment in accordance with NFPA 70.b. Use identification nameplate at each piece of service equipment to identify

type and location of on-site emergency power sources.4. Use identification nameplate to identify equipment utilizing series ratings, where

permitted, in accordance with NFPA 70.5. Use identification nameplate to identify switchboards and panelboards utilizing a

high leg delta system in accordance with NFPA 70.6. Use identification nameplate to identify disconnect location for equipment with

remote disconnecting means.7. Use identification label or handwritten text using indelible marker on inside of

door at each fused switch to identify required NEMA fuse class and size.8. Use identification label to identify overcurrent protective devices for branch

circuits serving fire alarm circuits. Identify with text "FIRE ALARM CIRCUIT".9. Use floor marking tape or warning labels to identify required equipment working

clearances where indicated or where required by the authority havingjurisdiction.

10. Available Fault Current Documentation: Use identification label to identify theavailable fault current and date calculations were performed at locationsrequiring documentation by NFPA 70, including but not limited to the following.a. Service equipment.b. Industrial control panels.c. Industrial machinery.

11. Arc Flash Hazard Warning Labels: Use warning labels to identify arc flash hazardsfor electrical equipment, such as switchboards, panelboards, industrial controlpanels, meter socket enclosures, and motor control centers that are likely torequire examination, adjustment, servicing, or maintenance while energized.a. Minimum Size: 3.5 by 5 inches.b. Legend: Include orange header that reads "WARNING", followed by the

word message "Arc Flash and Shock Hazard; Appropriate PPE Required; Donot operate controls or open covers without appropriate personalprotection equipment; Failure to comply may result in injury or death;Refer to NFPA 70E for minimum PPE requirements" or approvedequivalent.

619453 26 05 53-4

c. Service Equipment: Include the following information in accordance withNFPA 70.1) Nominal system voltage.2) Available fault current.3) Clearing time of service overcurrent protective device(s).4) Date label applied.

12. Use warning signs to identify electrical hazards for entrances to all rooms andother guarded locations that contain exposed live parts operating at 600 Vnominal or less with the word message "DANGER; Electrical hazard; Authorizedpersonnel only" or approved equivalent.

13. Use warning labels, identification nameplates, or identification labels to identifyelectrical hazards for equipment where multiple power sources are present withthe word message "DANGER; Hazardous voltage; Multiple power sources may bepresent; Disconnect all electric power including remote disconnects beforeservicing" or approved equivalent.

C. Identification for Conductors and Cables:1. Color Coding for Power Conductors 600 V and Less: Comply with Section 26 05

19.2. Identification for Communications Conductors and Cables: Comply with Section

27 10 00.3. Use identification nameplate or identification label to identify color code for

ungrounded and grounded power conductors inside door or enclosure at eachpiece of feeder or branch-circuit distribution equipment when premises hasfeeders or branch circuits served by more than one nominal voltage system.

4. Use wire and cable markers to identify circuit number or other designationindicated for power, control, and instrumentation conductors and cables at thefollowing locations:a. At each source and load connection.b. Within boxes when more than one circuit is present.c. Within equipment enclosures when conductors and cables enter or leave

the enclosure.5. Use wire and cable markers to identify connected grounding electrode system

components for grounding electrode conductors.6. Use underground warning tape to identify direct buried cables.

D. Identification for Raceways:1. Use voltage markers to identify highest voltage present for accessible conduits at

maximum intervals of 20 feet.

E. Identification for Boxes:1. Use voltage markers to identify highest voltage present.

F. Identification for Devices:1. Wiring Device and Wallplate Finishes: Comply with Section 26 27 26.2. Factory Pre-Marked Wallplates: Comply with Section 26 27 26.










































619453 26 05 53-5

3. Use identification label or engraved wallplate to identify serving branch circuit forall receptacles.a. For receptacles in public areas or in areas as directed by Architect, provide

identification on inside surface of wallplate.4. Use identification label or engraved wallplate to identify load controlled for

wall-mounted control devices controlling loads that are not visible from thecontrol location and for multiple wall-mounted control devices installed at onelocation.

5. Use identification label to identify receptacles protected by upstream GFIprotection, where permitted.

2.2 IDENTIFICATION NAMEPLATES AND LABELS

A. Identification Nameplates:1. Materials:

a. Indoor Clean, Dry Locations: Use plastic nameplates.b. Outdoor Locations: Use plastic, stainless steel, or aluminum nameplates

suitable for exterior use.2. Plastic Nameplates: Two-layer or three-layer laminated acrylic or electrically

non-conductive phenolic with beveled edges; minimum thickness of 1/16 inch;engraved text.a. Exception: Provide minimum thickness of 1/8 inch when any dimension is

greater than 4 inches.3. Stainless Steel Nameplates: Minimum thickness of 1/32 inch; engraved or

laser-etched text.4. Aluminum Nameplates: Anodized; minimum thickness of 1/32 inch; engraved or

laser-etched text.5. Mounting Holes for Mechanical Fasteners: Two, centered on sides for sizes up to

1 inch high; Four, located at corners for larger sizes.

B. Identification Labels:1. Materials: Use self-adhesive laminated plastic labels; UV, chemical, water, heat,

and abrasion resistant.a. Use only for indoor locations.

2. Text: Use factory pre-printed or machine-printed text. Do not use handwrittentext unless otherwise indicated.

C. Format for Equipment Identification:1. Minimum Size: 1 inch by 2.5 inches.2. Legend:

a. System designation where applicable:1) Emergency Power System: Identify with text "EMERGENCY".

b. Equipment designation or other approved description.c. Other information as indicated.

3. Text: All capitalized unless otherwise indicated.4. Minimum Text Height:












































619453 26 05 53-6

a. System Designation: 1 inch.b. Equipment Designation: 1/2 inch.c. Other Information: 1/4 inch.d. Exception: Provide minimum text height of 1 inch for equipment located

more than 10 feet above floor or working platform.5. Color:

a. Normal Power System: White text on black background.b. Emergency Power System: White text on red background.

D. Format for General Information and Operating Instructions:1. Minimum Size: 1 inch by 2.5 inches.2. Legend: Include information or instructions indicated or as required for proper

and safe operation and maintenance.3. Text: All capitalized unless otherwise indicated.4. Minimum Text Height: 1/4 inch.5. Color: Black text on white background unless otherwise indicated.

a. Exceptions:1) Provide white text on red background for general information or

operational instructions for emergency systems.

E. Format for Caution and Warning Messages:1. Minimum Size: 2 inches by 4 inches.2. Legend: Include information or instructions indicated or as required for proper

and safe operation and maintenance.3. Text: All capitalized unless otherwise indicated.4. Minimum Text Height: 1/2 inch.5. Color: Black text on yellow background unless otherwise indicated.

F. Format for Receptacle Identification:1. Minimum Size: 3/8 inch by 1.5 inches.2. Legend: Power source and circuit number or other designation indicated.

a. Include voltage and phase for other than 120 V, single phase circuits.3. Text: All capitalized unless otherwise indicated.4. Minimum Text Height: 3/16 inch.5. Color: Black text on clear background.

G. Format for Control Device Identification:1. Minimum Size: 3/8 inch by 1.5 inches.2. Legend: Load controlled or other designation indicated.3. Text: All capitalized unless otherwise indicated.4. Minimum Text Height: 3/16 inch.5. Color: Black text on clear background.








































619453 26 05 53-7

2.3 WIRE AND CABLE MARKERS

A. Markers for Conductors and Cables: Use wrap-around self-adhesive vinyl cloth,wrap-around self-adhesive vinyl self-laminating, heat-shrink sleeve, plastic sleeve,plastic clip-on, or vinyl split sleeve type markers suitable for the conductor or cable tobe identified.

B. Markers for Conductor and Cable Bundles: Use plastic marker tags secured by nyloncable ties.

C. Legend: Power source and circuit number or other designation indicated.

D. Text: Use factory pre-printed or machine-printed text, all capitalized unless otherwiseindicated.1. Do not use handwritten text.

E. Minimum Text Height: 1/8 inch.

F. Color: Black text on white background unless otherwise indicated.

2.4 VOLTAGE MARKERS

A. Markers for Conduits: Use factory pre-printed self-adhesive vinyl, self-adhesive vinylcloth, or vinyl snap-around type markers.

B. Markers for Boxes and Equipment Enclosures: Use factory pre-printed self-adhesivevinyl or self-adhesive vinyl cloth type markers.

C. Minimum Size:1. Markers for Conduits: As recommended by manufacturer for conduit size to be

identified.2. Markers for Pull Boxes: 1 1/8 by 4 1/2 inches.3. Markers for Junction Boxes: 1/2 by 2 1/4 inches.

D. Legend:1. Markers for Voltage Identification: Highest voltage present.2. Markers for System Identification:

a. Emergency Power System: Text "EMERGENCY".

E. Color: Black text on orange background unless otherwise indicated.






























619453 26 05 53-8

2.5 FLOOR MARKING TAPE

A. Floor Marking Tape for Equipment Working Clearance Identification: Self-adhesive vinylor polyester tape with overlaminate, 3 inches wide, with alternating black and whitestripes.

2.6 WARNING SIGNS AND LABELS

A. Comply with ANSI Z535.2 or ANSI Z535.4 as applicable.

B. Warning Signs:1. Materials:

a. Indoor Dry, Clean Locations: Use factory pre-printed rigid plastic orself-adhesive vinyl signs.

b. Outdoor Locations: Use factory pre-printed rigid aluminum signs.2. Rigid Signs: Provide four mounting holes at corners for mechanical fasteners.3. Minimum Size: 7 by 10 inches unless otherwise indicated.

C. Warning Labels:1. Materials: Use factory pre-printed or machine-printed self-adhesive polyester or

self-adhesive vinyl labels; UV, chemical, water, heat, and abrasion resistant;produced using materials recognized to UL 969.

2. Machine-Printed Labels: Use thermal transfer process printing machines andaccessories recommended by label manufacturer.

3. Minimum Size: 2 by 4 inches unless otherwise indicated.

PART 3 EXECUTION

3.1 PREPARATION

A. Clean surfaces to receive adhesive products according to manufacturer's instructions.

3.2 INSTALLATION


B. Install identification products to be plainly visible for examination, adjustment,servicing, and maintenance. Unless otherwise indicated, locate products as follows:1. Surface-Mounted Equipment: Enclosure front.2. Flush-Mounted Equipment: Inside of equipment door.3. Free-Standing Equipment: Enclosure front; also enclosure rear for equipment

with rear access.4. Elevated Equipment: Legible from the floor or working platform.5. Branch Devices: Adjacent to device.



































619453 26 05 53-9

6. Interior Components: Legible from the point of access.7. Conduits: Legible from the floor.8. Boxes: Outside face of cover.9. Conductors and Cables: Legible from the point of access.10. Devices: Outside face of cover.

C. Install identification products centered, level, and parallel with lines of item beingidentified.

D. Secure nameplates to exterior surfaces of enclosures using stainless steel screws and tointerior surfaces using self-adhesive backing or epoxy cement.1. Do not use adhesives on exterior surfaces except where substrate cannot be

penetrated.

E. Install self-adhesive labels and markers to achieve maximum adhesion, with no bubblesor wrinkles and edges properly sealed.

F. Install underground warning tape above buried lines with one tape per trench at 3inches below finished grade.

G. Secure rigid signs using stainless steel screws.

H. Mark all handwritten text, where permitted, to be neat and legible.



B. Replace self-adhesive labels and markers that exhibit bubbles, wrinkles, curling or othersigns of improper adhesion.

END OF SECTION

























619453 26 24 16-1

SECTION 26 24 16 - PANELBOARDS

PART 1 GENERAL


A. Power distribution panelboards.

B. Lighting and appliance panelboards.


A. Section 26 05 26 - Grounding and Bonding for Electrical Systems.

B. Section 26 05 29 - Hangers and Supports for Electrical Systems.


D. Section 26 28 13 - Fuses: Fuses for fusible switches and spare fuse cabinets.


A. FS W-C-375 - Circuit Breakers, Molded Case; Branch Circuit and Service; Revision E withSupplement 1, 2013.


C. NECA 407 - Standard for Installing and Maintaining Panelboards; 2015.

D. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum); 2014.

E. NEMA KS 1 - Heavy Duty Enclosed and Dead-Front Switches (600 Volts Maximum);2013.

F. NEMA PB 1 - Panelboards; 2011.

G. NEMA PB 1.1 - General Instructions for Proper Installation, Operation and Maintenanceof Panelboards Rated 600 Volts or Less; 2013.

H. NETA ATS - Acceptance Testing Specifications for Electrical Power Equipment andSystems; 2013.

619453 26 24 16-2

I. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

J. UL 50 - Enclosures for Electrical Equipment, Non-Environmental Considerations; CurrentEdition, Including All Revisions.

K. UL 50E - Enclosures for Electrical Equipment, Environmental Considerations; CurrentEdition, Including All Revisions.

L. UL 67 - Panelboards; Current Edition, Including All Revisions.

M. UL 98 - Enclosed and Dead-Front Switches; Current Edition, Including All Revisions.

N. UL 489 - Molded-Case Circuit Breakers, Molded-Case Switches and Circuit BreakerEnclosures; Current Edition, Including All Revisions.

O. UL 869A - Reference Standard for Service Equipment; Current Edition, Including AllRevisions.

P. UL 943 - Ground-Fault Circuit-Interrupters; Current Edition, Including All Revisions.

Q. UL 1053 - Ground-Fault Sensing and Relaying Equipment; Current Edition, Including AllRevisions.


A. Coordination:1. Coordinate the work with other trades to avoid placement of ductwork, piping,

equipment, or other potential obstructions within the dedicated equipmentspaces and working clearances for electrical equipment required by NFPA 70.


3. Coordinate the work with other trades to provide walls suitable for installation offlush-mounted panelboards where indicated.

4. Verify with manufacturer that conductor terminations are suitable for use withthe conductors to be installed.


1.5 SUBMITTALS


619453 26 24 16-3

B. Product Data: Provide manufacturer's standard catalog pages and data sheets forpanelboards, enclosures, overcurrent protective devices, and other installedcomponents and accessories.

C. Shop Drawings: Indicate outline and support point dimensions, voltage, main busampacity, overcurrent protective device arrangement and sizes, short circuit currentratings, conduit entry locations, conductor terminal information, and installed featuresand accessories.1. Clearly indicate whether proposed short circuit current ratings are fully rated or,

where acceptable, series rated systems.

D. Field Quality Control Test Reports.

E. Manufacturer's Installation Instructions: Indicate application conditions and limitationsof use stipulated by product testing agency. Include instructions for storage, handling,protection, examination, preparation, and installation of product.




A. Receive, inspect, handle, and store panelboards in accordance with manufacturer'sinstructions and NECA 407.

B. Store in a clean, dry space. Maintain factory wrapping or provide an additional heavycanvas or heavy plastic cover to protect units from dirt, water, construction debris, andtraffic.

C. Handle carefully in accordance with manufacturer's written instructions to avoiddamage to panelboard internal components, enclosure, and finish.


A. Maintain ambient temperature within the following limits during and after installationof panelboards:1. Panelboards Containing Circuit Breakers: Between 23 degrees F and 104 degrees

F.

PART 2 PRODUCTS

2.1 PANELBOARDS - GENERAL REQUIREMENTS

A. Provide products listed, classified, and labeled as suitable for the purpose intended.

619453 26 24 16-4

B. Unless otherwise indicated, provide products suitable for continuous operation underthe following service conditions:1. Altitude: Less than 6,600 feet.2. Ambient Temperature:

a. Panelboards Containing Circuit Breakers: Between 23 degrees F and 104degrees F.

C. Short Circuit Current Rating:1. Provide panelboards with listed short circuit current rating not less than the

available fault current at the installed location as indicated on the drawings.

D. Panelboards Used for Service Entrance: Listed and labeled as suitable for use as serviceequipment according to UL 869A.

E. Mains: Configure for top or bottom incoming feed as indicated or as required for theinstallation.

F. Branch Overcurrent Protective Devices: Replaceable without disturbing adjacentdevices.

G. Bussing: Sized in accordance with UL 67 temperature rise requirements.1. Provide fully rated neutral bus unless otherwise indicated, with a suitable lug for

each feeder or branch circuit requiring a neutral connection.2. Provide 200 percent rated neutral bus and lugs where indicated or where

oversized neutral conductors are provided.3. Provide solidly bonded equipment ground bus in each panelboard, with a suitable

lug for each feeder and branch circuit equipment grounding conductor.4. Provide separate isolated/insulated ground bus where indicated or where

isolated grounding conductors are provided.

H. Conductor Terminations: Suitable for use with the conductors to be installed.

I. Enclosures: Comply with NEMA 250, and list and label as complying with UL 50 and UL50E.1. Environment Type per NEMA 250: Unless otherwise indicated, as specified for

the following installation locations:a. Indoor Clean, Dry Locations: Type 1.b. Outdoor Locations: Type 3R.

2. Boxes: Galvanized steel unless otherwise indicated.a. Provide wiring gutters sized to accommodate the conductors to be

installed.b. Increase gutter space as required where sub-feed lugs, feed-through lugs,

gutter taps, or oversized lugs are provided.c. Provide removable end walls for NEMA Type 1 enclosures.

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619453 26 24 16-5

d. Provide painted steel boxes for surface-mounted panelboards whereindicated, finish to match fronts.

3. Fronts:a. Fronts for Surface-Mounted Enclosures: Same dimensions as boxes.b. Fronts for Flush-Mounted Enclosures: Overlap boxes on all sides to

conceal rough opening.c. Finish for Painted Steel Fronts: Manufacturer's standard grey unless

otherwise indicated.4. Lockable Doors: All locks keyed alike unless otherwise indicated.

J. Future Provisions: Prepare all unused spaces for future installation of devices includingbussing, connectors, mounting hardware and all other required provisions.

K. Ground Fault Protection: Where ground-fault protection is indicated, provide systemlisted and labeled as complying with UL 1053.1. Where electronic circuit breakers equipped with integral ground fault protection

are used, provide separate neutral current sensor where applicable.2. Where accessory ground fault sensing and relaying equipment is used, equip

companion overcurrent protective devices with ground-fault shunt trips.a. Use zero sequence ground fault detection method unless otherwise

indicated.b. Provide test panel and field-adjustable ground fault pick-up and delay

settings.

L. Load centers are not acceptable.

2.2 POWER DISTRIBUTION PANELBOARDS

A. Description: Panelboards complying with NEMA PB 1, power and feeder distributiontype, circuit breaker type, and listed and labeled as complying with UL 67; ratings,configurations and features as indicated on the drawings.

B. Conductor Terminations:1. Main and Neutral Lug Material: Copper, suitable for terminating copper

conductors only.2. Main and Neutral Lug Type: Mechanical.

C. Bussing:1. Phase and Neutral Bus Material: Copper.2. Ground Bus Material: Copper.

D. Circuit Breakers:1. Provide bolt-on type or plug-in type secured with locking mechanical restraints.2. Provide thermal magnetic circuit breakers unless otherwise indicated.3. Provide electronic trip circuit breakers where indicated.







































619453 26 24 16-6

E. Enclosures:1. Provide surface-mounted enclosures unless otherwise indicated.2. Fronts: Provide lockable hinged door with concealed hinges for access to

overcurrent protective device handles without exposing live parts.3. Provide clear plastic circuit directory holder mounted on inside of door.

2.3 OVERCURRENT PROTECTIVE DEVICES

A. Fusible Switches:1. Description: Quick-make, quick-break, dead-front fusible switch units complying

with NEMA KS 1, and listed and labeled as complying with UL 98; ratings,configurations, and features as indicated on the drawings.

2. Fuse Clips: As required to accept indicated fuses.3. Provide externally operable handle with means for locking in the OFF position.

Provide means for locking switch cover in the closed position. Provide safetyinterlock to prevent opening the cover with the switch in the ON position withcapability of overriding interlock for testing purposes.

B. Molded Case Circuit Breakers:1. Description: Quick-make, quick-break, over center toggle, trip-free,

trip-indicating circuit breakers listed and labeled as complying with UL 489, andcomplying with FS W-C-375 where applicable; ratings, configurations, andfeatures as indicated on the drawings.

2. Interrupting Capacity:a. Provide circuit breakers with interrupting capacity as required to provide

the short circuit current rating indicated, but not less than:1) 10,000 rms symmetrical amperes at 240 VAC or 208 VAC.

b. Fully Rated Systems: Provide circuit breakers with interrupting capacitynot less than the short circuit current rating indicated.

3. Conductor Terminations:a. Provide mechanical lugs unless otherwise indicated.b. Lug Material: Copper, suitable for terminating copper conductors only.

4. Thermal Magnetic Circuit Breakers: For each pole, furnish thermal inverse timetripping element for overload protection and magnetic instantaneous trippingelement for short circuit protection.a. Provide field-adjustable magnetic instantaneous trip setting for circuit

breaker frame sizes 225 amperes and larger.5. Electronic Trip Circuit Breakers: Furnish solid state, microprocessor-based, true

rms sensing trip units.6. Multi-Pole Circuit Breakers: Furnish with common trip for all poles.7. Provide the following circuit breaker types where indicated:

a. Ground Fault Circuit Interrupter (GFCI) Circuit Breakers: Listed ascomplying with UL 943, class A for protection of personnel.

b. Ground Fault Equipment Protection Circuit Breakers: Designed to trip at30 mA for protection of equipment.












































619453 26 24 16-7

c. 100 Percent Rated Circuit Breakers: Listed for application within thepanelboard where installed at 100 percent of the continuous currentrating.

d. Current Limiting Circuit Breakers: Without using fusible elements,designed to limit the let-through energy to a value less than the energy ofa one-half cycle wave of the symmetrical prospective current whenoperating within its current limiting range.

8. Do not use tandem circuit breakers.9. Do not use handle ties in lieu of multi-pole circuit breakers.10. Provide multi-pole circuit breakers for multi-wire branch circuits as required by

NFPA 70.11. Provide the following features and accessories where indicated or where

required to complete installation:a. Shunt Trip: Provide coil voltage as required for connection to indicated trip

actuator.b. Handle Pad-Lock Provision: For locking circuit breaker handle in OFF

position.c. Auxiliary Switch: SPDT switch suitable for connection to system indicated

for indicating when circuit breaker has tripped or been turned off.d. Alarm Switch: SPDT switch suitable for connection to system indicated for

indicating when circuit breaker has tripped.

2.4 SOURCE QUALITY CONTROL

A. Factory test panelboards according to NEMA PB 1.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that field measurements are as indicated.

B. Verify that the ratings and configurations of the panelboards and associatedcomponents are consistent with the indicated requirements.

C. Verify that mounting surfaces are ready to receive panelboards.

D. Verify that conditions are satisfactory for installation prior to starting work.

3.2 INSTALLATION

A. Perform work in accordance with NECA 1 (general workmanship).

B. Install products in accordance with manufacturer's instructions.

C. Install panelboards in accordance with NECA 407 and NEMA PB 1.1.




































619453 26 24 16-8

D. Arrange equipment to provide minimum clearances in accordance with manufacturer'sinstructions and NFPA 70.

E. Provide required support and attachment in accordance with Section 26 05 29.

F. Install panelboards plumb.

G. Install flush-mounted panelboards so that trims fit completely flush to wall with no gapsand rough opening completely covered.

H. Mount panelboards such that the highest position of any operating handle for circuitbreakers or switches does not exceed 79 inches above the floor or working platform.

I. Mount floor-mounted power distribution panelboards on properly sized 4 inch highconcrete pad constructed in accordance with Section 03 30 00.

J. Provide grounding and bonding in accordance with Section 26 05 26.1. Terminate branch circuit equipment grounding conductors on solidly bonded

equipment ground bus only. Do not terminate on isolated/insulated ground bus.2. Terminate branch circuit isolated grounding conductors on isolated/insulated

ground bus only. Do not terminate on solidly bonded equipment ground bus.

K. Install all field-installed branch devices, components, and accessories.

L. Provide fuses complying with Section 26 28 13 for fusible switches as indicated.

M. Multi-Wire Branch Circuits: Group grounded and ungrounded conductors together inthe panelboard as required by NFPA 70.

N. Set field-adjustable circuit breaker tripping function settings as determined byovercurrent protective device coordination study performed according to Section 26 0573.

O. Set field-adjustable ground fault protection pickup and time delay settings as indicated.

P. Provide filler plates to cover unused spaces in panelboards.

Q. Provide circuit breaker lock-on devices to prevent unauthorized personnel fromde-energizing essential loads where indicated. Also provide for the following:1. Emergency and night lighting circuits.2. Fire detection and alarm circuits.3. Communications equipment circuits.4. Intrusion detection and access control system circuits.5. Video surveillance system circuits.

































619453 26 24 16-9

R. Identify panelboards in accordance with Section 26 05 53.




C. Fusible Switches: Perform inspections and tests listed in NETA ATS, Section 7.5.1.1.

D. Molded Case Circuit Breakers: Perform inspections and tests listed in NETA ATS, Section7.6.1.1 for all main circuit breakers. Tests listed as optional are not required.

E. Ground Fault Protection Systems: Test in accordance with manufacturer's instructionsas required by NFPA 70.

F. Test GFCI circuit breakers to verify proper operation.

G. Test shunt trips to verify proper operation.

H. Correct deficiencies and replace damaged or defective panelboards or associatedcomponents.

3.4 ADJUSTING

A. Adjust tightness of mechanical and electrical connections to manufacturer'srecommended torque settings.

B. Adjust alignment of panelboard fronts.

C. Load Balancing: For each panelboard, rearrange circuits such that the differencebetween each measured steady state phase load does not exceed 20 percent and adjustcircuit directories accordingly. Maintain proper phasing for multi-wire branch circuits.

3.5 CLEANING

A. Clean dirt and debris from panelboard enclosures and components according tomanufacturer's instructions.

B. Repair scratched or marred exterior surfaces to match original factory finish.

END OF SECTION




























619453 26 27 26-1

SECTION 26 27 26 - WIRING DEVICES

PART 1 GENERAL


A. Wall plates.



B. Section 26 05 33.16 - Boxes for Electrical Systems.



A. FS W-C-596 - Connector, Electrical, Power, General Specification for; Revision H, 2014.

B. FS W-S-896 - Switches, Toggle (Toggle and Lock), Flush-mounted (General Specification);Revision G, 2014.

C. NECA 1 - Standard for Good Workmanship in Electrical Construction; 2015.

D. NECA 130 - Standard for Installing and Maintaining Wiring Devices; 2010.

E. NEMA WD 1 - General Color Requirements for Wiring Devices; 1999 (R2015).

F. NEMA WD 6 - Wiring Devices - Dimensional Specifications; 2016.

G. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

H. UL 20 - General-Use Snap Switches; Current Edition, Including All Revisions.

I. UL 498 - Attachment Plugs and Receptacles; Current Edition, Including All Revisions.

J. UL 514D - Cover Plates for Flush-Mounted Wiring Devices; Current Edition, Including AllRevisions.

K. UL 943 - Ground-Fault Circuit-Interrupters; Current Edition, Including All Revisions.

619453 26 27 26-2

L. UL 1310 - Class 2 Power Units; Current Edition, Including All Revisions.

M. UL 1449 - Standard for Surge Protective Devices; Current Edition, Including All Revisions.

N. UL 1472 - Solid-State Dimming Controls; Current Edition, Including All Revisions.


A. Coordination:1. Coordinate the placement of outlet boxes with millwork, furniture, equipment,

etc. installed under other sections or by others.2. Coordinate wiring device ratings and configurations with the electrical

requirements of actual equipment to be installed.3. Coordinate the placement of outlet boxes for wall switches with actual installed

door swings.4. Coordinate the installation and preparation of uneven surfaces, such as split face

block, to provide suitable surface for installation of wiring devices.5. Notify Engineer of any conflicts or deviations from Contract Documents to obtain

direction prior to proceeding with work.

B. Sequencing:1. Do not install wiring devices until final surface finishes and painting are complete.

1.5 SUBMITTALS


B. Product Data: Provide manufacturer's catalog information showing dimensions, colors,and configurations.1. Wall Dimmers: Include derating information for ganged multiple devices.2. Surge Protection Receptacles: Include surge current rating, voltage protection

rating (VPR) for each protection mode, and diagnostics information.

C. Certificates for Surge Protection Receptacles: Manufacturer's documentation of listingfor compliance with UL 1449.

D. Project Record Documents: Record actual installed locations of wiring devices.



B. Products: Listed, classified, and labeled as suitable for the purpose intended.

619453 26 27 26-3

1.7 DELIVERY, STORAGE, AND PROTECTION

A. Store in a clean, dry space in original manufacturer's packaging until ready forinstallation.

PART 2 PRODUCTS

2.1 WIRING DEVICE APPLICATIONS

A. Provide wiring devices suitable for intended use and with ratings adequate for loadserved.

2.2 WIRING DEVICE FINISHES

A. Provide wiring device finishes as described below unless otherwise indicated.

B. Wiring Devices, Unless Otherwise Indicated: Ivory with ivory nylon wall plate.

C. Wiring Devices Installed in Unfinished Spaces: Gray with galvanized steel wall plate.

D. Wiring Devices Installed in Wet or Damp Locations: Gray with specified weatherproofcover.

2.3 WALL PLATES

A. Wall Plates: Comply with UL 514D.1. Configuration: One piece cover as required for quantity and types of

corresponding wiring devices.2. Size: Standard.3. Provide screwless wallplates with concealed mounting hardware.

B. Nylon Wall Plates: Smooth finish, high-impact thermoplastic.

C. Stainless Steel Wall Plates: Brushed satin finish, Type 302 stainless steel.

D. Galvanized Steel Wall Plates: Rounded corners and edges, with corrosion resistantscrews.

E. Weatherproof Covers for Wet or Damp Locations: Gasketed, cast aluminum, withhinged lockable cover and corrosion-resistant screws; listed as suitable for use in wetlocations while in use with attachment plugs connected and identified as extra-dutytype.

619453 26 27 26-4

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that field measurements are as indicated.

B. Verify that outlet boxes are installed in proper locations and at proper mounting heightsand are properly sized to accommodate devices and conductors in accordance withNFPA 70.

C. Verify that wall openings are neatly cut and will be completely covered by wall plates.

D. Verify that final surface finishes are complete, including painting.

E. Verify that floor boxes are adjusted properly.

F. Verify that branch circuit wiring installation is completed, tested, and ready forconnection to wiring devices.

G. Verify that conditions are satisfactory for installation prior to starting work.

3.2 PREPARATION

A. Provide extension rings to bring outlet boxes flush with finished surface.

B. Clean dirt, debris, plaster, and other foreign materials from outlet boxes.

3.3 INSTALLATION

A. Perform work in accordance with NECA 1 (general workmanship) and, where applicable,NECA 130, including mounting heights specified in those standards unless otherwiseindicated.

B. Coordinate locations of outlet boxes provided under Section 26 05 33.16 as required forinstallation of wiring devices provided under this section.1. Mounting Heights: Unless otherwise indicated, as follows:

a. Wall Switches: 48 inches above finished floor.b. Wall Dimmers: 48 inches above finished floor.c. Receptacles: 18 inches above finished floor or 6 inches above counter.

2. Orient outlet boxes for vertical installation of wiring devices unless otherwiseindicated.

3. Where multiple receptacles, wall switches, or wall dimmers are installed at thesame location and at the same mounting height, gang devices together under acommon wall plate.


























619453 26 27 26-5

4. Locate wall switches on strike side of door with edge of wall plate 3 inches fromedge of door frame. Where locations are indicated otherwise, notify Engineer toobtain direction prior to proceeding with work.

5. Locate receptacles for electric drinking fountains concealed behind drinkingfountain according to manufacturer's instructions.

C. Install wiring devices in accordance with manufacturer's instructions.

D. Where required, connect wiring devices using pigtails not less than 6 inches long. Donot connect more than one conductor to wiring device terminals.

E. Connect wiring devices by wrapping conductor clockwise 3/4 turn around screwterminal and tightening to proper torque specified by the manufacturer. Wherepresent, do not use push-in pressure terminals that do not rely on screw-actuatedbinding.

F. Unless otherwise indicated, connect wiring device grounding terminal to branch circuitequipment grounding conductor and to outlet box with bonding jumper.

G. For isolated ground receptacles, connect wiring device grounding terminal only toidentified branch circuit isolated equipment grounding conductor. Do not connectgrounding terminal to outlet box or normal branch circuit equipment groundingconductor.

H. Provide GFCI receptacles with integral GFCI protection at each location indicated. Donot use feed-through wiring to protect downstream devices.

I. Install wiring devices plumb and level with mounting yoke held rigidly in place.

J. Install wall switches with OFF position down.

K. Install wall dimmers to achieve full rating specified and indicated after derating forganging as instructed by manufacturer.

L. Do not share neutral conductor on branch circuits utilizing wall dimmers.

M. Install vertically mounted receptacles with grounding pole on top and horizontallymounted receptacles with grounding pole on left.

N. Install wall plates to fit completely flush to wall with no gaps and rough openingcompletely covered without strain on wall plate. Repair or reinstall improperly installedoutlet boxes or improperly sized rough openings. Do not use oversized wall plates inlieu of meeting this requirement.

O. Install blank wall plates on junction boxes and on outlet boxes with no wiring devicesinstalled or designated for future use.



































619453 26 27 26-6

P. Identify wiring devices in accordance with Section 26 05 53.



B. Inspect each wiring device for damage and defects.

C. Operate each wall switch, wall dimmer, and fan speed controller with circuit energizedto verify proper operation.

D. Test each receptacle to verify operation and proper polarity.

E. Test each GFCI receptacle for proper tripping operation according to manufacturer'sinstructions.

F. Inspect each surge protection receptacle to verify surge protection is active.

G. Correct wiring deficiencies and replace damaged or defective wiring devices.

3.5 ADJUSTING

A. Adjust devices and wall plates to be flush and level.

B. Adjust presets for wall dimmers according to manufacturer's instructions as directed byEngineer.

3.6 CLEANING

A. Clean exposed surfaces to remove dirt, paint, or other foreign material and restore tomatch original factory finish.

END OF SECTION






















619453 26 28 13-1

SECTION 26 28 13 - FUSES

PART 1 GENERAL


A. Fuses.


A. Section 26 05 53 - Identification for Electrical Systems: Identification products andrequirements.

B. Section 26 24 16 - Panelboards: Fusible switches.

C. Section 26 28 16.16 - Enclosed Switches: Fusible switches.


A. NEMA FU 1 - Low Voltage Cartridge Fuses; 2012.

B. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

C. UL 248-4 - Low-Voltage Fuses - Part 4: Class CC Fuses; Current Edition, Including AllRevisions.

D. UL 248-10 - Low-Voltage Fuses - Part 10: Class L Fuses; Current Edition, Including AllRevisions.

E. UL 248-12 - Low-Voltage Fuses - Part 12: Class R Fuses; Current Edition, Including AllRevisions.


A. Coordination:1. Coordinate fuse clips furnished in equipment provided under other sections for

compatibility with indicated fuses.a. Fusible Switches for Panelboards: See Section 26 24 16.b. Fusible Enclosed Switches: See Section 26 28 16.16.

2. Coordinate fuse requirements according to manufacturer's recommendationsand nameplate data for actual equipment to be installed.


619453 26 28 13-2

1.5 SUBMITTALS


B. Product Data: Provide manufacturer's standard data sheets including voltage andcurrent ratings, interrupting ratings, time-current curves, and current limitation curves.1. Spare Fuse Cabinet: Include dimensions.

C. Maintenance Materials: Furnish the following for Wicomico County Public Schools'suse in maintenance of project.1. See Section 01 60 00 - Product Requirements, for additional provisions.2. Extra Fuses: Two set(s) of three for each type and size installed.3. Spare Fuse Cabinet Keys: Two.



PART 2 PRODUCTS

2.1 APPLICATIONS

A. General Purpose Branch Circuits: Class RK1, time-delay.

B. Individual Motor Branch Circuits: Class RK1, time-delay.

2.2 FUSES

A. Provide products listed, classified, and labeled as suitable for the purpose intended.

B. Unless specifically indicated to be excluded, provide fuses for all fusible equipment asrequired for a complete operating system.

C. Provide fuses of the same type, rating, and manufacturer within the same switch.

D. Comply with UL 248-1.

E. Unless otherwise indicated, provide cartridge type fuses complying with NEMA FU 1,Class and ratings as indicated.

F. Voltage Rating: Suitable for circuit voltage.

G. Class R Fuses: Comply with UL 248-12.

619453 26 28 13-3

H. Class L Fuses: Comply with UL 248-10.

I. Class CC Fuses: Comply with UL 248-4.

J. Provide the following accessories where indicated or where required to completeinstallation:1. Fuseholders: Compatible with indicated fuses.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that fuse ratings are consistent with circuit voltage and manufacturer'srecommendations and nameplate data for equipment.

B. Verify that mounting surfaces are ready to receive spare fuse cabinet.


3.2 INSTALLATION

A. Do not install fuses until circuits are ready to be energized.

B. Install fuses with label oriented such that manufacturer, type, and size are easily read.

C. Install spare fuse cabinet in convenient location in main electrical room unlessotherwise indicated.

D. Identify spare fuse cabinet in accordance with Section 26 05 53.

END OF SECTION


619453 26 28 16.16-1

SECTION 26 28 16.16 - ENCLOSED SWITCHES

PART 1 GENERAL


A. Enclosed safety switches.



B. Section 26 05 29 - Hangers and Supports for Electrical Systems.


D. Section 26 28 13 - Fuses.


A. NECA 1 - Standard for Good Workmanship in Electrical Construction; 2015.

B. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum); 2014.

C. NEMA KS 1 - Heavy Duty Enclosed and Dead-Front Switches (600 Volts Maximum);2013.

D. NETA ATS - Acceptance Testing Specifications for Electrical Power Equipment andSystems; 2013.


F. UL 50 - Enclosures for Electrical Equipment, Non-Environmental Considerations; CurrentEdition, Including All Revisions.

G. UL 50E - Enclosures for Electrical Equipment, Environmental Considerations; CurrentEdition, Including All Revisions.

H. UL 98 - Enclosed and Dead-Front Switches; Current Edition, Including All Revisions.

I. UL 869A - Reference Standard for Service Equipment; Current Edition, Including AllRevisions.

619453 26 28 16.16-2


A. Coordination:1. Coordinate the work with other trades. Avoid placement of ductwork, piping,

equipment, or other potential obstructions within the dedicated equipmentspaces and within working clearances for electrical equipment required by NFPA70.


3. Verify with manufacturer that conductor terminations are suitable for use withthe conductors to be installed.


1.5 SUBMITTALS


B. Product Data: Provide manufacturer's standard catalog pages and data sheets forenclosed switches and other installed components and accessories.

C. Manufacturer's Installation Instructions: Indicate application conditions and limitationsof use stipulated by product testing agency. Include instructions for storage, handling,protection, examination, preparation, installation, and starting of product.




A. Store in a clean, dry space. Maintain factory wrapping or provide an additional heavycanvas or heavy plastic cover to protect units from dirt, water, construction debris, andtraffic.

B. Handle carefully in accordance with manufacturer's written instructions to avoiddamage to enclosed switch internal components, enclosure, and finish.


A. Maintain ambient temperature between -22 degrees F and 104 degrees F during andafter installation of enclosed switches.


























619453 26 28 16.16-3

PART 2 PRODUCTS

2.1 ENCLOSED SAFETY SWITCHES

A. Description: Quick-make, quick-break enclosed safety switches listed and labeled ascomplying with UL 98; heavy duty; ratings, configurations, and features as indicated onthe drawings.

B. Provide products listed, classified, and labeled as suitable for the purpose intended.

C. Unless otherwise indicated, provide products suitable for continuous operation underthe following service conditions:1. Altitude: Less than 6,600 feet.2. Ambient Temperature: Between -22 degrees F and 104 degrees F.

D. Horsepower Rating: Suitable for connected load.

E. Voltage Rating: Suitable for circuit voltage.

F. Short Circuit Current Rating:1. Provide enclosed safety switches, when protected by the fuses or supply side

overcurrent protective devices to be installed, with listed short circuit currentrating not less than the available fault current at the installed location asindicated on the drawings.

2. Minimum Ratings:a. Switches Protected by Class H Fuses: 10,000 rms symmetrical amperes.b. Heavy Duty Single Throw Switches Protected by Class R, Class J, Class L, or

Class T Fuses: 200,000 rms symmetrical amperes.

G. Provide with switch blade contact position that is visible when the cover is open.

H. Fuse Clips for Fusible Switches: As required to accept fuses indicated.1. Where NEMA Class R fuses are installed, provide rejection feature to prevent

installation of fuses other than Class R.

I. Conductor Terminations: Suitable for use with the conductors to be installed.

J. Provide solidly bonded equipment ground bus in each enclosed safety switch, with asuitable lug for terminating each equipment grounding conductor.

K. Enclosures: Comply with NEMA 250, and list and label as complying with UL 50 and UL50E.1. Environment Type per NEMA 250: Unless otherwise indicated, as specified for

the following installation locations:a. Indoor Clean, Dry Locations: Type 1.



































619453 26 28 16.16-4

b. Outdoor Locations: Type 3R.2. Finish for Painted Steel Enclosures: Manufacturer's standard, factory applied

grey unless otherwise indicated.

L. Provide safety interlock to prevent opening the cover with the switch in the ON positionwith capability of overriding interlock for testing purposes.

M. Heavy Duty Switches:1. Comply with NEMA KS 1.2. Conductor Terminations:

a. Lug Material: Aluminum, suitable for terminating aluminum or copperconductors.

3. Provide externally operable handle with means for locking in the OFF position,capable of accepting three padlocks.a. Provide means for locking handle in the ON position where indicated.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that the ratings of the enclosed switches are consistent with the indicatedrequirements.

B. Verify that mounting surfaces are ready to receive enclosed safety switches.


3.2 INSTALLATION



C. Arrange equipment to provide minimum clearances in accordance with manufacturer'sinstructions and NFPA 70.

D. Provide required support and attachment in accordance with Section 26 05 29.

E. Install enclosed switches plumb.

F. Except where indicated to be mounted adjacent to the equipment they supply, mountenclosed switches such that the highest position of the operating handle does notexceed 79 inches above the floor or working platform.

G. Provide grounding and bonding in accordance with Section 26 05 26.
































619453 26 28 16.16-5

H. Provide fuses complying with Section 26 28 13 for fusible switches as indicated or asrequired by equipment manufacturer's recommendations.

I. Identify enclosed switches in accordance with Section 26 05 53.




C. Perform inspections and tests listed in NETA ATS, Section 7.5.1.1.

D. Correct deficiencies and replace damaged or defective enclosed safety switches orassociated components.

3.4 ADJUSTING

A. Adjust tightness of mechanical and electrical connections to manufacturer'srecommended torque settings.

3.5 CLEANING

A. Clean dirt and debris from switch enclosures and components according tomanufacturer's instructions.

B. Repair scratched or marred exterior surfaces to match original factory finish.

END OF SECTION



















DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

619453 28 46 00-1

SECTION 28 46 00 - FIRE DETECTION AND ALARM

PART 1 GENERAL


A. Fire alarm system design and installation, including all components, wiring, and conduit.

B. Transmitters for communication with supervising station.

C. Maintenance of fire alarm system under contract for specified warranty period.


A. Section 07 84 00 - Firestopping: Materials and methods for work to be performed bythis installer.

B. Section 23 33 00 - Air Duct Accessories: Smoke dampers monitored and controlled byfire alarm system.


A. 36 CFR 1191 - Americans with Disabilities Act (ADA) Accessibility Guidelines forBuildings and Facilities; Architectural Barriers Act (ABA) Accessibility Guidelines; currentedition.

B. ADA Standards - Americans with Disabilities Act (ADA) Standards for Accessible Design;2010.

C. IEEE C62.41.2 - Recommended Practice on Characterization of Surges in Low-Voltage(1000 V and less) AC Power Circuits; 2002 (Cor 1, 2012).

D. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority HavingJurisdiction, Including All Applicable Amendments and Supplements.

E. NFPA 72 - National Fire Alarm and Signaling Code; 2016.

F. NFPA 101 - Life Safety Code; 2015.

1.4 SUBMITTALS


B. Proposal Documents: Submit the following with cost/time proposal:

619453 28 46 00-2

1. NFPA 72 "Record of Completion", filled out to the extent known at the time.2. Manufacturer's detailed data sheet for each control unit, initiating device, and

notification appliance.3. Certification by Contractor that the system design will comply with Contract

Documents.4. Proposed maintenance contract.

C. Drawings must be prepared using AutoCAD Release ___.1. Wicomico County Public Schools will provide floor plan drawings for Contractor's

use; verify all dimensions on Wicomico County Public Schools-provided drawings.

D. Evidence of designer qualifications.

E. Design Documents: Submit all information required for plan review and permitting byauthorities having jurisdiction, including but not limited to floor plans, riser diagrams,and description of operation:1. Copy (if any) of list of data required by authority having jurisdiction.2. NFPA 72 "Record of Completion", filled out to the extent known at the time.3. Clear and concise description of operation, with input/output matrix similar to

that shown in NFPA 72 Appendix A-7-5-2.2(9), and complete listing of softwarerequired.

4. System zone boundaries and interfaces to fire safety systems.5. Location of all components, circuits, and raceways; mark components with

identifiers used in control unit programming.6. Circuit layouts; number, size, and type of raceways and conductors; conduit fill

calculations; spare capacity calculations; notification appliance circuit voltagedrop calculations.

7. List of all devices on each signaling line circuit, with spare capacity indicated.8. Manufacturer's detailed data sheet for each component, including wiring

diagrams, installation instructions, and circuit length limitations.9. Description of power supplies; if secondary power is by battery include

calculations demonstrating adequate battery power.10. Certification by either the manufacturer of the control unit or by the

manufacturer of each other component that the components are compatiblewith the control unit.

11. Certification by the manufacturer of the control unit that the system designcomplies with Contract Documents.

12. Certification by Contractor that the system design complies with ContractDocuments.

F. Evidence of installer qualifications.

G. Evidence of instructor qualifications; training lesson plan outline.

H. Evidence of maintenance contractor qualifications, if different from installer.

619453 28 46 00-3

I. Inspection and Test Reports:1. Submit inspection and test plan prior to closeout demonstration.2. Submit documentation of satisfactory inspections and tests.3. Submit NFPA 72 "Inspection and Test Form," filled out.

J. Operating and Maintenance Data: Revise and resubmit until acceptable; have one setavailable during closeout demonstration:1. Complete set of specified design documents, as approved by authority having

jurisdiction.2. Additional printed set of project record documents and closeout documents,

bound or filed in same manuals.3. Contact information for firm that will be providing contract maintenance and

trouble call-back service.4. List of recommended spare parts, tools, and instruments for testing.5. Replacement parts list with current prices, and source of supply.6. Detailed troubleshooting guide and large scale input/output matrix.7. Preventive maintenance, inspection, and testing schedule complying with NFPA

72; provide printed copy and computer format acceptable to Wicomico CountyPublic Schools.

8. Detailed but easy to read explanation of procedures to be taken by non-technicaladministrative personnel in the event of system trouble, when routine testing isbeing conducted, for fire drills, and when entering into contracts for remodeling.

K. Project Record Documents: See Section 01 78 00 for additional requirements; have oneset available during closeout demonstration:1. Complete set of floor plans showing actual installed locations of components,

conduit, and zones.2. "As installed" wiring and schematic diagrams, with final terminal identifications.3. "As programmed" operating sequences, including control events by device,

updated input/output chart, and voice messages by event.

L. Closeout Documents:1. Certification by manufacturer that the system has been installed in compliance

with manufacturer's installation requirements, is complete, and is in satisfactoryoperating condition.

2. NFPA 72 "Record of Completion", filled out completely and signed by installerand authorized representative of authority having jurisdiction.

3. Certificate of Occupancy.4. Maintenance contract.

M. Maintenance Materials, Tools, and Software: Furnish the following for WicomicoCounty Public Schools's use in maintenance of project.1. Furnish spare parts of same manufacturer and model as those installed; deliver in

original packaging, labeled in same manner as in operating and maintenance dataand place in spare parts cabinet.


























619453 28 46 00-4

2. In addition to the items in quantities indicated in PART 2, furnish the following:a. All tools, software, and documentation necessary to modify the fire alarm

system using Wicomico County Public Schools's personnel; minimummodification capability to include addition and deletion of devices, circuits,and zones, and changes to system description, operation, and evacuationand instructional messages.


A. Designer Qualifications: NICET Level III or IV (3 or 4) certified fire alarm technician orregistered fire protection engineer, employed by fire alarm control panel manufacturer,Contractor, or installer.

B. Installer Qualifications: Firm with minimum 2 years experience installing fire alarmsystems of the specified type and providing contract maintenance service as a regularpart of their business.1. Authorized representative of control unit manufacturer; submit manufacturer's

certification that installer is authorized; include name and title of manufacturer'srepresentative making certification.

2. Installer Personnel: At least 2 years of experience installing fire alarm systems.3. Supervisor: NICET level III or IV (3 or 4) certified fire alarm technician; furnish

name and address.4. Contract maintenance office located within 50 miles of project site.5. Certified in Maryland as fire alarm installer.

C. Maintenance Contractor Qualifications: Same entity as installer or different entity withspecified qualifications.

D. Instructor Qualifications: Experienced in technical instruction, understanding fire alarmtheory, and able to provide the required training; trained by fire alarm control unitmanufacturer.

1.6 WARRANTY

A. See Section 01 78 00 - Closeout Submittals, for additional warranty requirements.

B. Provide control panel manufacturer's warranty that system components other thanwire and conduit are free from defects and will remain so for 1 year after date ofSubstantial Completion.

C. Provide installer's warranty that the installation is free from defects and will remain sofor 1 year after date of Substantial Completion.



































619453 28 46 00-5

PART 2 PRODUCTS

2.1 FIRE ALARM SYSTEM

A. Fire Alarm System: Provide modifications and extensions to the existing automatic firedetection and alarm system:1. Provide all components necessary, regardless of whether shown in Contract

Documents or not.2. Protected Premises: Entire building shown on drawings.3. Comply with the following; where requirements conflict, order of precedence of

requirements is as listed:a. ADA Standards.b. The requirements of the State Fire Marshal.c. The requirements of the local authority having jurisdiction.d. Applicable local codes.e. Contract Documents (drawings and specifications).f. NFPA 101.g. NFPA 72; where the word "should" is used consider that provision

mandatory; where conflicts between requirements require deviation fromNFPA 72, identify deviations clearly on design documents.

4. Program notification zones and voice messages as directed by Wicomico CountyPublic Schools.

B. Supervising Stations and Fire Department Connections:1. Public Fire Department Notification: Via existing system.2. Remote Supervising Station: UL-listed central station under contract to facility.3. Means of Transmission to Remote Supervising Station: via existing system.

C. Circuits:1. Initiating Device Circuits (IDC): Class B, Style A.2. Notification Appliance Circuits (NAC): Class B, Style W.

2.2 FIRE SAFETY SYSTEMS INTERFACES

A. HVAC:1. Duct Smoke Detectors: Close dampers indicated; shut down air handlers

indicated.

2.3 COMPONENTS

A. General:1. Provide flush mounted units where installed in finish areas; in unfinished areas,

surface mounted unit are acceptable.2. Provide legible, permanent labels for each control device, using identification

used in operation and maintenance data.







































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B. Master Control Unit: existing.

C. Initiating Devices:1. Duct Smoke Detectors: for HVAC unit serving Gymnasium.

D. Circuit Conductors: Copper or optical fiber; provide 200 feet extra; color code andlabel.

E. Surge Protection: In accordance with IEEE C62.41.2 category B combination waveformand NFPA 70; except for optical fiber conductors.

F. Locks and Keys: Deliver keys to Wicomico County Public Schools.1. Provide the same standard lock and key for each key operated switch, lockable

panel, cabinet and key-operated alram initiating device; provide 5 keys of eachtype

G. Instruction Charts: Printed instruction chart for operators, showing steps to be takenwhen a signal is received (normal, alarm, supervisory, and trouble); easily readable fromnormal operator's station.1. Frame: Stainless steel or aluminum with polycarbonate or glass cover.2. Provide one for each control unit where operations are to be performed.3. Obtain approval of Wicomico County Public Schools prior to mounting; mount in

location acceptable to Wicomico County Public Schools.4. Provide extra copy with operation and maintenance data submittal.

PART 3 EXECUTION

3.1 INSTALLATION

A. Install in accordance with applicable codes, NFPA 72, NFPA 70, and ContractDocuments.

B. Conceal all wiring, conduit, boxes, and supports where installed in finished areas.

C. Obtain Wicomico County Public Schools's approval of locations of devices, beforeinstallation.

D. Install instruction cards and labels.

3.2 INSPECTION AND TESTING FOR COMPLETION

A. Notify Wicomico County Public Schools 7 days prior to beginning completioninspections and tests.
































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B. Notify authorities having jurisdiction and comply with their requirements for schedulinginspections and tests and for observation by their personnel.

C. Provide the services of the installer's supervisor or person with equivalent qualificationsto supervise inspection and testing, correction, and adjustments.

D. Prepare for testing by ensuring that all work is complete and correct; performpreliminary tests as required.

E. Provide all tools, software, and supplies required to accomplish inspection and testing.

F. Perform inspection and testing in accordance with NFPA 72 and requirements of localauthorities; document each inspection and test.

G. Correct defective work, adjust for proper operation, and retest until entire systemcomplies with Contract Documents.

3.3 WICOMICO COUNTY PUBLIC SCHOOLS PERSONNEL INSTRUCTION

A. Provide the following instruction to designated Wicomico County Public Schoolspersonnel:1. Hands-On Instruction: On-site, using operational system.2. Classroom Instruction: Wicomico County Public Schools furnished classroom,

on-site or at other local facility.

B. Administrative: One-hour session(s) covering issues necessary for non-technicaladministrative staff; classroom:1. Initial Training: 1 session pre-closeout.

C. Basic Operation: One-hour sessions for attendant personnel, security officers, andengineering staff; combination of classroom and hands-on:1. Initial Training: 1 session pre-closeout.

D. Furnish the services of instructors and teaching aids; have copies of operation andmaintenance data available during instruction.

3.4 CLOSEOUT

A. Closeout Demonstration: Demonstrate proper operation of all functions to WicomicoCounty Public Schools.1. Be prepared to conduct any of the required tests.2. Have at least one copy of operation and maintenance data, preliminary copy of

project record drawings, input/output matrix, and operator instruction chart(s)available during demonstration.


































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3. Have authorized technical representative of control unit manufacturer presentduring demonstration.

4. Demonstration may be combined with inspection and testing required byauthority having jurisdiction; notify authority having jurisdiction in time toschedule demonstration.

5. Repeat demonstration until successful.

3.5 MAINTENANCE

A. See Section 01 70 00 - Execution and Closeout Requirements, for additionalrequirements relating to maintenance service.

B. Provide to Wicomico County Public Schools, at no extra cost, a written maintenancecontract for entire manufacturer's warranty period, to include the work describedbelow.

C. Perform routine inspection, testing, and preventive maintenance required by NFPA 72,including:1. Maintenance of fire safety interface and supervisory devices connected to fire

alarm system.2. Repairs required, unless due to improper use, accidents, or negligence beyond

the control of the maintenance contractor.3. Record keeping required by NFPA 72 and authorities having jurisdiction.

D. Provide trouble call-back service upon notification by Wicomico County Public Schools:1. Provide on-site response within 2 hours of notification.2. Include allowance for call-back service during normal working hours at no extra

cost to Wicomico County Public Schools.3. Wicomico County Public Schools will pay for call-back service outside of normal

working hours on an hourly basis, based on actual time spent at site and notincluding travel time; include hourly rate and definition of normal working hoursin maintenance contract.

E. Provide a complete description of preventive maintenance, systematic examination,adjustment, cleaning, inspection, and testing, with a detailed schedule.

F. Maintain a log at each fire alarm control unit, listing the date and time of eachinspection and call-back visit, the condition of the system, nature of the trouble,correction performed, and parts replaced. Submit duplicate of each log entry toWicomico County Public Schools's representative upon completion of site visit.

G. Comply with Wicomico County Public Schools's requirements for access to facility andsecurity.

END OF SECTION






































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