hacienda la puente unified school district willow...

Joel Duarte Director Purchasing and Warehouse

February 5, 2020

HACIENDA LA PUENTE UNIFIED SCHOOL DISTRICT BID NUMBER 2019-20.02R

WILLOW CAMPUS SOUTH CONFERENCE ROOM AND RESTROOM RENOVATION

ADDENDUM #3

This Addendum number three (#3) hereby makes changes to Bid #2019-20.02R. Bidder shall acknowledge receipt of this Addendum in space provided on the Bid Form. Failure to acknowledge may subject Bidder to disqualification. Included in this Addendum is the following:

1. Clarifications from Architect which can be found at from ARC visit www.crplanwell.com, click on Public Plan room, & search by Hacienda La Puente USD in the dropdown list.

Questions may be directed to my attention at 626-933-3932 or email me at [email protected]. Sincerely,

Joel Duarte Director of Purchasing and Warehouse

HACIENDA LA PUENTE UNIFIED SCHOOL DISTRICT PURCHASING DEPARTMENT

15959 E. GALE AVENUE • P.O. BOX 60002 • CITY OF INDUSTRY, CA 91716-0002 (626) 933-3930 • (626) 933-3939

mailto:[email protected]

WILLOW ADULT SCHOOL – S. CONF. RM. REV. & RESTROOM UPGRADES ADDENDUM NO. 3 HACIENDA LA PUENTE UNIFIED SCHOOL DISTRICT Page 1 of 4

Date: February 5, 2020 ADDENDUM NO. 3 To Project Bidding Documents for: WILLOW ADULT SCHOOL SOUTH CONFERENCE ROOM RENOVATION & RESTROOM UPGRADES LA PUENTE, CA tBP Proj. No. 21018.00 tBP/ARCHITECTURE 4611 Teller Avenue Newport Beach, CA 92660 949/673-0300 TO: PROSPECTIVE BIDDERS This Addendum forms a part of the Contract Documents and modifies the original Drawings dated June 25, 2019. Acknowledge receipt of this Addendum in space provided on the Bid Form. Failure to acknowledge may subject Bidder to disqualification. CHANGES TO SPECIFICATIONS

1. SPECIFICATIONS SECTION 08 06 71 DOOR HARDWARDE SCHEDULE Replace Section 08 06 71 Door Hardware Schedule in its entirety, issued with this addendum.

2. SPECIFICATIONS SECTION 23 05 48 HVAC SOUND-VIBRATION & SEISMIC CONTROL Add Section 23 05 48 HVAC Sound-Vibration and Seismic Control in its entirety, issued with this addendum.

3. SPECIFICATIONS SECTION 27 41 00 AUDIO/VISUAL COMMUNICATIONS Replace Section 27 41 00 Audio/Visual Communications in its entirety, issued with this addendum.

4. SPECIFICATIONS SECTION 27 51 26 ASSISTIVE LISTENING SYSTEM Replace Section 27 51 26 Assistive Listening System in its entirety, issued with this addendum.

CHANGES TO DRAWINGS

1. SHEET AS-1 OVERALL CAMPUS SITE PLAN Replace full size sheet Drawing AS-1 in its entirety, issued with this addendum.

2. SHEET A0-1 SOUTH CONFERECE ROOM FLOOR PLAN - DEMOLITION Replace full size sheet Drawing A0-1 in its entirety, issued with this addendum.

3. SHEET A0-2 SOUTH CONFERENCE RM. REFLECTED CEILING – DEMO

Replace full size sheet Drawing A0-2 in its entirety, issued with this addendum.


4. SHEET A0-3 SOUTH CONFERENCE RM. ROOF PLAN – DEMOLITION


5. SHEET A1-1 SOUTH CONFERENCE RM. FLOOR PLAN - REMODEL Replace full size sheet Drawing A1-1 in its entirety, issued with this addendum.

6. SHEET A1-2 S. CONF. RM. REFLECTED CEILING PLAN – REMODEL Replace full size sheet Drawing A1-2 in its entirety, issued with this addendum.

7. SHEET A1-3 SOUTH CONFERENCE RM.- ROOF PLAN Replace full size sheet Drawing A1-3 in its entirety, issued with this addendum.

8. SHEET A1-4 SOUTH CONFERENCE RM. – EXTERIOR ELEVATIONS


9. SHEET A1-5 SOUTH CONFERENCE RM. – BUILDING SECTIONS Replace full size sheet Drawing A1-5 in its entirety, issued with this addendum.

10. SHEET A1-5.1 SOUTH CONFERENCE RM. BUILDING SECTIONS

Replace full size sheet Drawing A1-5.1 in its entirety, issued with this addendum.

11. SHEET A1-6 SOUTH CONFERENCE RM. INTERIOR ELEVATIONS Replace full size sheet Drawing A1-6 in its entirety, issued with this addendum.

12. SHEET A3-1 UNIT 6 – RESTROOM PLANS AND ELEVATIONS


13. SHEET A3-2 UNIT 6 – RESTROOM PLANS AND ELEVATIONS Replace full size sheet Drawing A3-2 in its entirety, issued with this addendum.



16. SHEET A6-1 BLDG ‘A’ – RESTROOM PLANS AND ELEVATIONS Replace full size sheet Drawing A6-1 in its entirety, issued with this addendum.



19. SHEET A7-1 BLDG ‘B’ – RESTROOM PLANS AND ELEVATIONS Replace full size sheet Drawing A7-1 in its entirety, issued with this addendum.



21. SHEET A7-3 BLDG ‘B’ – RESTROOM PLANS AND ELEVATIONS



23. SHEET A8-1 BLDG ‘C’ – RESTROOM PLANS AND ELEVATIONS


24. SHEET A8-2 BLDG ‘C’ – RESTROOM PLANS AND ELEVATIONS Replace full size sheet Drawing A8-2 in its entirety, issued with this addendum.

25. SHEET 4.01 PARTITION TYPES/CASEWORK DETAILS

Replace full size sheet Drawing 4.01 in its entirety, issued with this addendum.

26. SHEET 4.02 WALLDETAILS Replace full size sheet Drawing 4.02 in its entirety, issued with this addendum.

27. SHEET 5.01 CEILING DETAILS Replace full size sheet Drawing 5.01 in its entirety, issued with this addendum.

28. SHEET 7.01 ROOF DETAILS

Detail No. 19 – base plate and bolts detail reference is 4/M5-01.

29. SHEET 8.01 S. CONDERENCE RM. DOOR AND WINDOW SCHEDULES Replace full size sheet Drawing 8.01 in its entirety, issued with this addendum.

30. SHEET 8.02 DOOR & WINDOW DETAILS

Replace full size sheet Drawing 8.02 in its entirety, issued with this addendum. 31. SHEET 9.01 S. CONF. RM. FINISH PLAN, COLOR & FINISH SCHEDULES


32. SHEET 9.02 RESTROOM FINISH SCHEDULE Replace full size sheet Drawing 9.02 in its entirely, issued with this addendum.

33. SHEET 11.01 SIGNAGE DETAILS


34. SHEET S-2.1 FOUNDATION PLAN Replace full size sheet Drawing S-2.1 in its entirety, issued with this addendum.

35. SHEET S-3.1 ROOF FRAMING PLAN

Replace full size sheet Drawing S-3.1 in its entirely, issued with this addendum. 36. SHEET S-4.1 FOUNDATION DETAILS

Replace full size sheet Drawing S-4.1 in its entirely, issued with this addendum.

37. SHEET S-4.2 FOUNDATION DETAILS Replace full size sheet Drawing S-4.2 in its entirety, issued with this addendum.


38. SHEET S-5.1 FRAMING DETAILS

Replace full size sheet Drawing S-5.1 in its entirely, issued with this addendum. 39. SHEET E0-1 SYMBOL LIST AND SHEET INDEX

Replace full size sheet Drawing E0-1 in its entirely, issued with this addendum.

40. SHEET E1-1 LIGHTING PLAN Replace full size sheet Drawing E1-1 in its entirety, issued with this addendum.

41. SHEET E1-4 FIRE ALARM PANELS

Replace full size sheet Drawing E1-4 in its entirely, issued with this addendum.

42. SHEET E1-5 FIRE ALARM EQUIPMENT SCHEDULE AND NOTES & RISER DIAGRAM Replace full size sheet Drawing E1-5 in its entirely, issued with this addendum.

43. SHEET E1-8 AV ELECTRICL PLAN

Replace full size sheet Drawing E1-8 in its entirely, issued with this addendum. 44. SHEET E1-11 AV WIRING DIAGRAMS

Add full size sheet Drawing E1-11 in its entirely, issued with this addendum. ATTACHMENTS The following attachments are a part of Addendum No. 3:

1. Specification Sections (8.5” x 11”) 08 06 71 23 05 48 27 41 00

27 51 26 2. Full Size Sheets (30” x 42”): (Total 43)

AS-1 A7-1 S-4.2 A0-1 A7-2 S-5.1 A0-2 A7-3 E0-1 A0-3 A7-4 E1-1 A1-1 A8-1 E1-4 A1-2 A8-2 E1-5 A1-3 4.01 E1-8 A1-4 4.02 E1-11 A1-5 5.01 A1-5.1 A1-6 8.01 A3-1 8.02 A3-2 9.01 A4-1 9.02 A5-1 11.01 A6-1 S-2.1 A6-2 S-3.1 A6-3 S-4.1

Willow Adult School Conference Room Renovation tBP/Architecture Project No. 21000.01

DOOR HARDWARE SCHEDULE 08 06 71 - 1

SECTION 08 06 71

DOOR HARDWARE SCHEDULE

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Preliminary schedule of door hardware sets for swinging and other door types as indicated on drawings.

1.02 RELATED REQUIREMENTS

A. Section 08 71 00 - Door Hardware: Requirements to comply with in coordination with this section.

1.03 REFERENCE STANDARDS

A. BHMA (CPD) - Certified Products Directory; 2016.

B. BHMA A156.3 - American National Standard for Exit Devices; 2014.

C. BHMA A156.5 - American National Standard for Cylinders and Input Devices for Locks; 2014.

D. BHMA A156.13 - American National Standard for Mortise Locks & Latches Series 1000; 2012.

E. BHMA A156.18 - American National Standard for Materials and Finishes; 2012.

F. DHI (H&S) - Sequence and Format for the Hardware Schedule; 1996.

1.04 SUBMITTALS

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

B. Comply with submittal requirements as indicated in Section 08 71 00.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Only manufacturers listed in Door Hardware Schedule or Section 08 71 00 are considered acceptable, unless noted otherwise.

B. Obtain each type of door hardware as indicated from a single manufacturer and single supplier.

C. Products are listed and certified compliant with specified standards by BHMA (CPD).

D. Manufacturer's Abbreviations: Coordinate with manufacturers listed in Section 08 71 00.

1. GLY - Glynn Johnson, Allegion, PLC.

2. IVE - Ives, Allegion, PLC.

3. LCN - LCN Commercial Division, Allegion, PLC.

4. SCE - Schlage Electronic Security, Allegion, PLC

5. SCH/SC - Schlage Lock Company, Allegion, PLC.

6. VON - Von Duprin, Allegion, PLC..

7. ZER - Zero Industries, Inc., Allegion, PLC.

http://buildershardware.com/certified-products/directory

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ANSI%20A156.3




http://www.dhi.org/

http://buildershardware.com/certified-products/directory



8. TBD - To be determined.

9. BYO/OT - By Others.

2.02 DESCRIPTION

A. Door hardware sets provided represent the design intent, they are only a guideline and should not be considered a detailed or complete hardware schedule.

1. Provide door hardware item(s) as required for similar purposes, even when item is not listed for a door in Door Hardware Schedule.

2. Necessary items that are not included in a Hardware Set should be added and have the appropriate additional hardware as required for proper application and functionality.

3. Door hardware supplier is responsible for providing proper size and hand of door for products required in accordance with Door Hardware Schedule and as indicated on drawings.

4. Quantities listed are for each Pair (PR) of doors, or for each Single (SGL) door, as indicated in hardware sets.

2.03 LOCK FUNCTION CODES

A. Function Codes for Cylindrical Locks: Complying with BHMA A156.5.

B. Function Codes for Mortise Locks: Complying with BHMA A156.13.

C. Function Codes for Exit Devices: Complying with BHMA A156.3.

2.04 FINISHES

A. Finishes: Complying with BHMA A156.18.

PART 3 EXECUTION

3.01 DOOR HARDWARE SCHEDULE

A. Organize listing of door hardware components within each hardware set in compliance with 10-Part scheduling sequence indicated in DHI (H&S), unless otherwise indicated.

B. See door schedule in drawings for hardware set assignments.

C. No hardware shall be ordered until Finished Hardware has been reviewed and approved by Architect’s hardware consultant.

D. Provide Factory order numbers for all products supplied on this project as part of close out documents for District’s warranty records.

E. Any door count quantity shown in the HW set listings is for reference only. Contractor shall verify all door quantities with the Architectural Drawings.

F. Hardware Sets: Next page





http://www.dhi.org/



SpeXtra: 476348-3 HARDWARE GROUP NO. 01

For use on Door #(s):

1 2

Provide each SGL door(s) with the following:

QTY DESCRIPTION CATALOG NUMBER FINISH MFR

1 EA CONT. HINGE 700 630 IVE

1 EA PASSAGE SET L9010 06A 626 SCH

1 EA SURFACE CLOSER 4040XP SCUSH 689 LCN

1 EA KICK PLATE 8400 10" X 1" LDW B-CS 630 IVE

1 EA GASKETING 188SBK PSA BK ZER

1 EA FINGER GUARD 951A 84" (2134MM) A ZER

1 EA FINGER GUARD 51A-90 84" (2134MM) A ZER

CHILDREN RESTROOM

FINGER GUARD 951 AT PULL SIDE FULL HEIGHT

FINGER GUARD 51 AT PUSH SIDE FULL HEIGHT

STONE THRESHOLD BY FLOORING SECTION

NEW LOCKSET TO MATCH CAMPUS STANDARD – CONSULT CAMPUS LOCKSMITH

HARDWARE GROUP NO. 02


3 4



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE

1 EA PRIVACY W/COIN TURN L9044 06A L583-363 L283-722 626 SCH

1 EA SURFACE CLOSER 4040XP REG OR PA AS REQ 689 LCN


1 EA MOP PLATE 8400 4" X 1" LDW B-CS 630 IVE


ALL GENDER RESTROOM







5 6 7 8 18 19

20 21 24 25



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE





CHILDREN RESTROOM





9 11 12 22



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE




1 EA WALL STOP WS406/407CCV 630 IVE


MEN/WOMEN RESTROOM







10 17



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE

1 EA STOREROOM LOCK L9080HD 06A 626 SCH

1 EA SFIC EVEREST CORE 80-037 626 SCH



1 EA WALL STOP WS406/407CCV 630 IVE


JANITOR ROOM


NEW CYLINDER TO MATCH CAMPUS STANDARD – CONSULT CAMPUS LOCKSMITH




13 14 15 16



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE



ALL GENDER RESTROOM





23 26



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE





ALL GENDER RESTROOM







23 26



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE





ALL GENDER RESTROOM



END OF SECTION

HARDWARE GROUP NO. 08For use on Door #(s):104A 105A 106A 107AProvide each SGL door(s) with the following:

Qty Description Catalog Number Finish Mfr 1 EA CONT. HINGE 112HD 628 IVE 1 EA PANIC HARDWARE CDSI-PA-AX-98-NL-OP-110MD 626 VON 2 EA SFIC EVEREST CORE 80-037 EV29 R 626 SCH 1 EA SFIC MORTISE CYL. 80-132 626 SCH 1 EA SFIC RIM CYLINDER 80-159 626 SCH 1 EA DOOR PULL VR910 NL 630 IVE 1 EA SURFACE CLOSER 4040XP SCUSH TORX 689 LCN 1 EA PROTECTION PLATE 8400 10" X 2" LDW B-CS 630 IVE 1 EA RAIN DRIP 142AA (IF EXPOSED ABOVE) AA ZER 1 EA GASKETING 429AA-S AA ZER 1 EA DOOR SWEEP 8198AA AA ZER 1 EA THRESHOLD 655A-223 (OR PER SILL DETAIL) A ZER

NEW CYLINDER TO MATCH EXISTING CAMPUS STANDARD - CONSULT CAMPUS LOCKSMITH

HARDWARE GROUP NO. 09For use on Door #(s):108Provide each SGL door(s) with the following:

Qty Description Catalog Number Finish Mfr 3 EA HINGE 5BB1 4.5 X 4.5 652 IVE 1 EA STOREROOM LOCK L9080HD 06A 626 SCH 1 EA SFIC EVEREST CORE 80-037 EV29 R 626 SCH 1 EA WALL STOP WS406/407CCV 630 IVE 1 EA THRESHOLD 63A-223 (OR PER SILL DETAIL) A ZER 3 EA SILENCER SR64 GRY IVE

NEW CYLINDER TO MATCH EXISTING CAMPUS STANDARD - CONSULT CAMPUS LOCKSMITH

HARDWARE GROUP NO. 10For use on Door #(s):104B 105C 105B 106BProvide each SGL door(s) with the following:

Qty Description Catalog Number Finish Mfr 3 EA HINGE 5BB1 4.5 X 4.5 652 IVE 1 EA CLASSROOM

SECURITY L9071HD 06A 626 SCH

2 EA SFIC EVEREST CORE 80-037 EV29 R 626 SCH 1 EA SURFACE CLOSER 4040XP REG OR PA AS REQ TORX 689 LCN 1 EA PROTECTION PLATE 8400 10" X 2" LDW B-CS 630 IVE 1 EA FLOOR STOP FS436/FS438 (AS REQ'D) 626 IVE 1 EA GASKETING 8303AA AA ZER





23 26



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE





ALL GENDER RESTROOM



END OF SECTION


1 EA CONT. HINGE 112HD 628 IVE 1 EA PANIC HARDWARE CDSI-PA-AX-98-NL-OP-110MD 626 VON 2 EA SFIC EVEREST CORE 80-037 EV29 R 626 SCH 1 EA SFIC MORTISE CYL. 80-132 626 SCH 1 EA SFIC RIM CYLINDER 80-159 626 SCH 1 EA DOOR PULL VR910 NL 630 IVE 1 EA SURFACE CLOSER 4040XP SCUSH TORX 689 LCN 1 EA PROTECTION PLATE 8400 10" X 2" LDW B-CS 630 IVE 1 EA RAIN DRIP 142AA (IF EXPOSED ABOVE) AA ZER 1 EA GASKETING 429AA-S AA ZER 1 EA DOOR SWEEP 8198AA AA ZER 1 EA THRESHOLD 655A-223 (OR PER SILL DETAIL) A ZER NEW CYLINDER TO MATCH EXISTING CAMPUS STANDARD - CONSULT CAMPUS LOCKSMITH HARDWARE GROUP NO. 12For use on Door #(s):102Provide each SGL door(s) with the following:

Qty Description Catalog Number Finish Mfr 3 EA HINGE 5BB1 4.5 X 4.5 652 IVE 1 EA CLASSROOM

SECURITY L9071HD 06A 626 SCH

2 EA SFIC EVEREST CORE 80-037 EV29 R 626 SCH 1 EA SURFACE CLOSER 4040XP REG OR PA AS REQ TORX 689 LCN 1 EA PROTECTION PLATE 8400 10" X 2" LDW B-CS 630 IVE 1 EA FLOOR STOP FS436/FS438 (AS REQ'D) 626 IVE 1 EA GASKETING 8303AA AA ZER

1 EA THRESHOLD 63A-223 (OR PER SILL DETAIL) A ZER


1 EA CONT. HINGE 112HD 628 IVE 1 EA PANIC HARDWARE CDSI-PA-AX-98-NL-OP-110MD 626 VON 2 EA SFIC EVEREST CORE 80-037 EV29 R 626 SCH 1 EA SFIC MORTISE CYL. 80-132 626 SCH 1 EA SFIC RIM CYLINDER 80-159 626 SCH 1 EA DOOR PULL VR910 NL 630 IVE 1 EA SURFACE CLOSER 4040XP SCUSH TORX 689 LCN 1 EA PROTECTION PLATE 8400 10" X 2" LDW B-CS 630 IVE 1 EA RAIN DRIP 142AA (IF EXPOSED ABOVE) AA ZER 1 EA GASKETING 429AA-S AA ZER 1 EA DOOR SWEEP 8198AA AA ZER 1 EA THRESHOLD 655A-223 (OR PER SILL DETAIL) A ZER NEW CYLINDER TO MATCH EXISTING CAMPUS STANDARD - CONSULT CAMPUS LOCKSMITH

7





23 26



3 EA HINGE 5BB1 4.5 X 4.5 652 IVE





ALL GENDER RESTROOM



END OF SECTION

HARDWARE GROUP NO. 14For use on Door #(s):101 103Provide each SGL door(s) with the following:

1 EA CONT. HINGE 112HD 83" 628 IVE1 EA PANIC HARDWARE CDSI PA AX 98 NL OP 110MD 36" 626 VON2 EA SFIC EVEREST CORE 80-037 EV29 R 626 SCH1 EA SFIC MORTISE CYL. 80-132 626 SCH1 EA SFIC RIM CYLINDER 80-159 626 SCH1 EA DOOR PULL VR910 NL 630 IVE1 EA SURFACE CLOSER 4040XP EDA TORX 689 LCN1 EA FLOOR STOP FS18S BLK IVE1 EA DOOR SEAL/SWEEP PROVIDED BY DOOR MANUFACTURER B/O

1 EA THRESHOLD 103A-223 36" A ZER

8

Hacienda La Puente Unified School District HVAC SOUND, VIBRATION, AND SEISMIC CONTROL

Willow ES MPR Remodel 23 05 48 - 1

tBP Project No. 21000.00

SECTION 23 0548

HVAC SOUND, VIBRATION AND SEISMIC CONTROL

PART 1 – GENERAL

1.01 SUMMARY

A. Section Includes: Reduction or elimination of excessive noise or vibration within building due to operation of equipment, machinery, piping, and ductwork as specified.

1. Vibration isolators.

2. Seismic restraint devices.

3. Duct silencers.

4. Acoustic housings.

5. Lining and enclosing ductwork.

6. Acoustic louvers.

7. Sound attenuation boots at supply, return, exhaust and transfer air inlets, outlets and openings.

8. Flexible ducts, conduits and piping.

B. Related Requirements:

1. Division 01: General Requirements.

2. Section 01 4525: Testing, Adjusting, and Balancing for HVAC.

3. Section 23 0500: Common Work Results for HVAC.

4. Section 23 0513: Basic HVAC Materials and Methods.

6. Section 23 3000: Air Distribution.

14. Section 23 8000: Heating, Ventilating and Air Conditioning Equipment (with Split Systems).




15. Section 23 8010: Heating, Ventilating and Air Conditioning Equipment.

1.02 GENERAL REQUIREMENTS

A. Provide vibration isolators to eliminate or reduce the transmission of vibration noise to any part of building and mitigate vibration frequency and load imposed by equipment. Vibration isolators, base frames, inertia bases and seismic restraints shall be of sufficient size, flexibility and load distribution configuration to assure that deflection, stability and seismic restraint requirements are met without permitting excessive movement when starting. For typical units, no fewer than four isolators shall be provided. Isolators shall be provided to deflect uniformly under operating gravity and equipment thrust loadings to within plus or minus 10 percent of specified deflection values.

B. Static deflections specified are based on the anticipated equipment characteristics. In the event the equipment proposed by the Contractor has characteristics other than those indicated, particularly the rated rpm, the static deflection shall be re-evaluated and the proper mountings and other devices shall be provided.

C. Where fabricated vibration isolator units are indicated, furnish manufacturer's standard catalog products with printed loading ratings or certified submittals

D. Seismic Requirements:

1. Refer to Seismic Restraint Manual: Guidelines for Mechanical Systems, published by SMACNA and approved by DSA, for minimum seismic restraints required on mechanical components design and construction details.

2. Provide seismic restraints for mechanical equipment or components specified. Where equipment is specified with proprietary names, design for seismic restraints is for first proprietary name listed.

3. Provide restraints, bracing and anchorage as required for the mechanical equipment, electrical equipment and components specified in the Contract Documents. Restraints, bracing and anchorage shall be installed to resist the total design earthquake or wind loads in any direction in accordance with CBC and SMACNA guidelines.

4. Provide restraints, bracing, and anchorage for the mechanical equipment and components.

5. For rigidly mounted liquid filled steel pipe, comply with the following:

a. Provisions of NFPA Pamphlet 13, section for sway bracing.

b. Provisions of NFPA Pamphlet 13, section for earthquake protection.




c. Hanger spacing as specified in Section 23 0513 under Hanger Spacing Schedule.

d. SMACNA Seismic Restraint Manual: Guidelines for Mechanical Systems and approval by DSA.

6. For flexibly mounted liquid filled steel pipe, comply with the following:

a. Provisions of the California Building Code for flexibly mounted equipment.

b. Provisions of VISCMA (Vibration Isolation and Seismic Control Manufacturer’s Association) Seismic Control Device Installation, Best Practices Manuals.

c. Installer may provide a DSA or OSHPD approved system such as the SMACNA Seismic Restraint Manual with Addendum No. 1, the Mason Industries Seismic Restraint Guidelines or other proprietary pre-approved system.

7. For ductwork and other mechanical equipment restraints, comply with SMACNA Seismic Restraint Manual: Guidelines for Seismic Mechanical Systems and obtain approval by DSA.

1.03 SUBMITTALS

A. Provide in accordance with Division 01.

1. Catalog cuts and data sheets on specific vibration isolators, seismic restraints, and anchors demonstrating compliance with the Specifications.

2. Shop Drawings for each piece of equipment including dimensions, structural member size, support point, vibration, and seismic restraints.

3. Written approval of frame design to be furnished by the equipment manufacturer.

4. Drawings indicating methods for suspension, support, seismic restraints, guides, etc., for piping, ductwork, etcetera.

5. Drawings indicating methods for isolation of pipes, ducts etcetera, piercing slabs, beams, etcetera.

B. Vibration Test Reports: At completion of installation, submit the following documents. Submission of these documents must be complete before final acceptance of vibration isolation systems is given. Assistance from the vibration isolation equipment Manufacturer may be required.

1. Complete tabulation showing for each vibration isolator:




a. Actual static deflection measured at the project.

b. Specified minimum static deflection.

2. Report certifying:

a. Each piece of operative rotating mechanical equipment does not exceed the specified vibration displacement level.

b. Each piece of isolated equipment or equipment component (ducts, pipes, conduit, etcetera) is not short-circuited by any means.

c. Requirements of Part 2 are satisfied for equipment.

1.04 QUALITY ASSURANCE

A. Standards and Codes: Comply with applicable codes and standards having jurisdiction including, but not limited to:

1. NFPA, Pamphlet 13.

2. ASHRAE Handbook: HVAC Systems and Equipment.

3. SMACNA Seismic Restraint Manual: Guidelines for Mechanical Systems.

4. California Building Code.

5. VISCMA

a. Installing Seismic Restraints for Mechanical Equipment.

b. Installing Seismic Restraints for Duct and Pipe.

B. Qualifications of Manufacturer and Installers: Comply with provisions as set forth in Section 23 0500: Common Work Results for HVAC.

PART 2 – PRODUCTS

2.01 GENERAL

A. Furnish and install vibration dampers, sound isolation pads, flexible connections and similar equipment required to prevent sound of water flowing in pipes, vibration of motors, and motor operated equipment from being transmitted to building structure; and, in case of fans, from being transmitted along ducts. Piping shall be isolated from vibrating equipment by furnishing required flexible connectors.




B. Pumps and similar motor operated equipment shall be installed on anti-vibration units.

C. Fans, except curb-mounted roof-type exhaust fans and wall mounted propeller fans, shall be installed with anti-vibration units, whether indicated on Drawings or not. Fans built into air handling units may be furnished with independent anti-vibration mountings or whole unit may be installed on an external vibration isolation system.

D. Other equipment shall be installed on anti-vibration bases, pads, or hangers, unless specifically noted otherwise on Drawings. Package units, furnished with built in anti- vibration bases, do not require unit bases unless otherwise specified.

1. Unless specified otherwise, anti-vibration bases shall be Mason Industries, M.W. Sausse & Co., the VMC Group, or equal, of the Model Number specified or indicated on the drawings. Furnished base including sub-base, shall be manufactured by same company with fan and integral motor base. Seismic restraints may be incorporated into bases or furnished separately.

2. Inertia anti-vibration bases shall conform to requirements indicated.

3. Unless noted otherwise, furnished anti-vibration bases, including supporting units for inertia bases, shall be of the spring type.

4. Selection of bases or supporting units shall be in accordance with manufacturer's recommendations based on following installed minimum effective isolation efficiencies (where not provided with each piece of equipment):

a. Centrifugal fans, packaged fan and coil units and cooling towers, less than 800 RPM

80 percent

b. Centrifugal fans over 800 RPM 90 percent

c. Centrifugal pumps 95 percent

d. Reciprocating compressors 95 percent

E. Flexible duct connections shall be provided at inlet and outlets of each fan or HVAC unit, except curb-mounted roof exhaust fans whether indicated on the drawings or not.

F. Flexible pipe or conduit connections shall be provided at piping and conduit connections to HVAC units, pumps, compressors and other moving (reciprocating or rotating) mechanical or electrical equipment provided under this Section whether indicated on the drawings or not.

G. Flexible connections for Freon piping shall be seamless flexible metal hoses of type and length recommended by manufacturer and suitable for system operating pressure.

H. Flexible connections for all other piping shall be flexible metal hose or spool type with flanged ends, unless otherwise specified. Metal hose shall be covered with protective braiding in areas where physical abrasion may occur, or for personnel safety.




I. Spool types shall be similar to American Rubber Co., Mercer Rubber Co., PROCO Products, Inc., or equal, and hose types shall be similar to DME, Inc., U.S. Flex, Pennflex, Anaconda Flexpipe, Keflex, or equal with any required modifications to meet specified requirements. Flanges shall be furnished with steel retaining rings. Units installed on discharge side of pumps shall be furnished for a suitable working pressure of not less than 100 psig, and those on suction side for working pressures of 50 psig or 30 inches Hg vacuum.

J. Units installed in cold water lines (less than 125 degrees F) shall furnish a minimum temperature rating of 180 degrees F and those installed in hot water lines (above 125 degrees F) shall be constructed of special heat resistant materials and be furnished for a minimum temperature rating of 220 degrees F, continuous operation. Units shall be able to withstand a maximum lateral deflection of 3/8 inch. Temperature and pressure ratings shall be molded into body of each spool unit so they are easily identified. Spool types shall be for straight in flow only.

K. Spool type units shall be furnished with control units comprised of a minimum of two tie-rods and anchor plates or internal guide sleeves to prevent excessive elongation or misalignment. Rubber washers shall be provided under bolt heads and rubber grommets in bolt holes to prevent any metal to metal contact between bolts and flanges.

L. Where hose type units are furnished, restraining anchors or braces shall be provided if excessive or undesirable pipe movement occurs when system is operated.

2.02 GENERAL PROPERTIES OF VIBRATION ISOLATORS.

A. Shall be provided with markings so that, after adjustment, when carrying their load, deflection under load can be verified; thus determining that load is within proper range of device and that correct degree of vibration isolation is being provided according to the design.

B. Isolators to operate in direct proportion to their load versus deflection curve. Load versus deflection curves shall be furnished by manufacturer and must be linear over a deflection range of 50 percent above design deflection.

C. Wave motion through isolator shall be reduced to following extent: Isolation above resonant frequency shall follow theoretical prediction based upon an un-dampened single degree of freedom system with a minimum isolation of 50 decibels above 150 cycles per second.

D. Vibration isolator spring diameters shall be no less than their deflected height. Furnish spring with a 50 percent overload safety factor.

E. Unless otherwise indicated, equipment installed on vibration bases shall provide a minimum operating clearance of one inch between structural steel base and floor or support base. Provide flexible connectors in piping and flexible conduit in power wiring to minimize transmission of vibration.




F. Isolators and springs exposed to weather shall be hot-dipped galvanized or powder coated after fabrication and before installation. Hot-dipped zinc coating shall be not less than two ounces per square foot by weight complying with ASTM A123. In addition, provide limit stops to resist wind velocity.

G. Where indicated, provide structural steel bases with height saving brackets, and minimum of three points of support. Isolators shall be furnished with a method for leveling.

H. Design isolators and seismic restraints for positive anchorage against uplift and overturning.

I. Provide and install, under this Section of the Specifications, structural steel required to properly support equipment and steel required to support horizontal thrust arrestors.

2.03 ISOLATOR TYPES

A. Type A: Steel Spring Isolators: Un-housed steel spring isolators, laterally stable and unrestrained. Design springs so that ratio of horizontal to vertical spring (stiffness) constant is between 0.9 and 1.3. Natural frequency of isolator must be 1/3 to 1/4 of driving frequency that is to be controlled. Isolators to provide a minimum additional travel to solid equal to 50 percent of rated deflection. Isolators shall be furnished with built-in leveling bolts complete with sound isolation pads type B. Static deflection as specified.

B. Type B: Sound Isolation Pad: Provide under each spring isolator a sound isolation pad, utilizing high quality durable neoprene pad material, loaded to 40 psi. Build sound pad up to 2 layers of 1/4 inch thick neoprene material; separate layers with a 16 gage galvanized sheet metal plate. Top layer shall provide a hardness of 40 durometers and the bottom layer shall be 40 durometers. Cold bond sound pads together and to isolator baseplate.

C. Type C: Neoprene-in-Shear Isolators: Isolator shall be neoprene-in-shear type as recommended by manufacturer. Isolator shall provide a static deflection under rated load at 1/4 inch.

2.04 EQUIPMENT FRAMES

A. Provide mounting frames and brackets to carry load of equipment without causing mechanical distortion or stress to the equipment.

B. Type A Frame: Wide flange members, rigidized structural steel frame with brackets. Maximum allowable deflection at any point on load frame relative to unloaded frame shall be 0.005 inch. Members to be constructed of wide flange beams, with a depth of not less than 1/10 of length of span between isolators. Frame shall be M.W. Sausse & Co. type RMSB-W, as basis of design, or Mason Industries, Caldyn, or equal.

C. Type B Frame: Channel members, rigidized structural steel frame with brackets. Frame to be constructed of channel steel with section depth equal to 1/10th length of longest structural




member. Frame shall be M.W. Sausse & Co. type RMSB-C, as basis of design, or Mason Industries, Caldyn, or equal.

D. Type C Frame: Steel gusset or bracket welded or bolted directly to machine frame in order to accommodate isolator. Frame shall be M.W. Sausse & Co. type RMSG, as basis of design, or Mason Industries, Caldyn, or equal.

E. Type D Frame: Fabricated of rectangular channel steel forms for floating foundations to be filled with concrete on the Project site. Channel depth to be a minimum of 1/12th of longest dimension, but in no case less than 6 inches. Form shall include 1/2 inch reinforcing bars installed each way in a layer 1 ½ inches above bottom and drilled steel members with sleeves mounted below holes to receive equipment anchor bolts. Weight of concrete and frame shall be two times or more than the weight of the unit it supports. Frame shall be M.W. Sausse & Co. type RMSBI, as basis of design, or Mason Industries, Caldyn, or equal.

2.05 MATERIALS AND CONSTRUCTION

A. Duct Silencers: Provide factory fabricated duct silencers of tubular or rectangular type, for low or medium velocity service, with arrangements, sizes, and capacities as indicated on the Drawings.

1. Construction:

a. Fabricate silencers of galvanized steel with casing seams sealed or welded to be airtight at a pressure differential of 8 inches water gage between inside and outside of unit, and stiffen or brace as necessary to prevent structural failure or deformation at same condition, or audible vibration during normal operation. Outer casings of rectangular silencer modules shall be made of 22 gage galvanized steel in accordance with ASHRAE Guide of recommended construction for high-pressure rectangular ductwork. Seams shall be lock formed and mastic filled. Outer casings of tubular silencers shall be made of galvanized steel in 18 to 22 gage. Internal acoustic elements of rectangular silencers shall incorporate integral die formed entry and exit to minimize pressure drop and self-noise. Interior partitions for rectangular silencers shall be fabricated of not less than 26 gage galvanized perforated steel. Interior construction of tubular silencers shall be compatible with the outside casings.

b. Filler material shall comply with the following:

1) Fire Safety Standards: NFPA 90A and NFPA 90B.

2) Temperature: ASTM C411.

3) Air velocity: ASTM C1071, UL 181.




4) Fire Hazard Classification: ASTM E84, UL 723-Class 1, NFPA 255.

5) Corrosion Resistance: ASTM C739, C665.

6) Fungi Resistance: ASTM G21.

7) Water Vapor Sorption: ASTM C1104, less than 1 percent by weight.

8) Formaldehyde, Phenolic Resins or other Volatile Organic Compounds: 0 percent.

c. Airtight construction shall be provided by furnishing a duct sealing compound installed on the Project site. Silencers shall not fail structurally when subjected to a differential air pressure of 8 inches w.g. inside to outside of casing.

2. Acoustic Performance: Silencer ratings shall be determined in a duct-to-reverberant room test facility, which provides for airflow in both directions through the test silencer in accordance with ASTM Standard E477. The test facility shall be accredited by the National Voluntary Laboratory Accredited Program for the ASTM E477 test standard. Data from a non-accredited laboratory is not permitted. The test set-up and procedure shall eliminate effects due to end reflection, directivity, flanking transmission, standing waves, and test chamber sound absorption. Acoustic ratings shall include dynamic insertion loss (DIL) and self-noise (SN) power levels both for forward flow (air and noise in same direction) and reverse flow (air and noise in opposite directions). Data shall be for test silencers no smaller than the following cross-sections:

Rectangular, inches - 24 by 24, 24 by 30, or 24 by 36 Tubular, inches - 12, 24, 36, and 48

a. Noise reduction values (dynamic insertion loss) in decibels reference 10-12 watts, shall not be less than (of the model, size and length) indicated on Drawings.

b. Self generated noise in decibels reference 10 to 12 watts, shall not be more than of the model, size and length indicated on Drawings.

3. Aerodynamic performance: Airflow measurements shall be performed in accordance with ASTM specification E477 and applicable portions of ASME, Air Movement and Control Association (AMCA), and Air Diffusion Council (ADC) airflow test codes. Tests shall be reported on the identical units for which acoustic data is presented. Air pressure drops shall not exceed those (of the model, size and length) indicated on Drawings.

4. Certification: With submittals, provide certified test data on dynamic insertion loss, self-noise power levels, and aerodynamic performance for reverse and forward flow test conditions. Test data shall be for a standard product. Rating tests shall be




conducted in the same facility, shall utilize the same silencer, and shall be open to inspection if required by the Architect.

5. Rectangular silencers shall be Industrial Acoustics Company of the model number indicated on the drawing, as basis of design, or Vibro-Acoustics, Dynasonics, SEMCO Silentair, TranSonics, Inc., or equal.

B. Duct Liner: As indicated in Section 23 0700: HVAC Insulation.

C. Flexible Ducts: As indicated in Section 23 0700: HVAC Insulation.

PART 3 – EXECUTION

3.01 INSTALLATION

A. Provide isolators, flexible pipe connectors, flexible electrical conduit and flexible duct connectors at all moving mechanical system components to prevent transmission of vibration noise to any part of building whether indicated on the drawings or not.

B. Install isolators to suit imposed load and the vibration frequency to be absorbed. Isolator units shall furnish adequate strength and flexibility to exhibit proper resiliency under machine load and impact without permitting excessive movement when starting.

C. Where commercial vibration isolator and seismic restraint units are specified, furnish manufacturer's standard catalog products with printed loading ratings, or provide substantiating calculations.

D. Install vibration isolators and seismic restraints in accordance with manufacturer's printed installation instructions.

E. Where equipment is belt driven and motor is not installed on equipment, install motor and driven equipment on unitized support, and install entire support isolators. Unitized support to be provided with adjustable slide rails sized for motor weight and frequency. Support shall be Mason Industries type WF, M.W. Sausse & Co., type RMSF, Caldyn, or equal.

F. Do not install any equipment, piping, conduit, ductwork, etc., that makes rigid contact with building or its structural members, unless reviewed by the Architect.

1. Coordinate Work with other trades to avoid rigid contact with building.

2. Correct, before installation, any conflict with other Work that would result in solid contact to equipment or piping due to inadequate space.

3. Obtain inspection from the Project Inspector for concealed Work before enclosure.




4. Notify manufacturer before installation of vibration isolation devices so that manufacturer may instruct and demonstrate technique for proper installation.

G. The furnishing or installation of vibration isolators must not cause any change of position or alignment of equipment, ductwork, or piping, resulting in stresses in piping or ductwork, connections, or misalignment of shafts or bearings. Equipment, piping, and ductwork shall be maintained in a rigid position during installation. Load shall not be transferred to isolator until installation is complete and under full operational load.

I.

K. Air Handling, Air Conditioning Units, Floor Mounted Fans, and Cabinet-Installed Fans: Install entire casing including filters, mixing box, fan section, coil sections, etc., on a continuous, integral, structural steel base, as indicated. Furnish type A, B, or C frames, reinforced as necessary to prevent distortion of frame. Furnish isolator type A; static deflection shall be a minimum of l ½ inches.

L. Suspended Fans and Air Conditioning Unit Fan Coils and Unit Ventilators: Suspend each integral unit from overhead structure on steel spring and elastomer hanger isolators. Support deflection under rated load of 3/8 inch. Provide spring static deflection as follows:

Fan RPM Min. Deflection

200 – 400 3 inches

400 – 700 2 inches

Above 700 1 inches

M. Pipe Isolation: Where indicated and as required, furnish and support each pipe from an isolator. Isolator for the first five support locations away from vibrating equipment shall have the same deflection as the equipment isolators. After that, isolators shall be a neoprene-in-shear type of size as recommended by manufacturer; except where indicated on Drawings, pipe hanger rod shall be furnished with a steel spring isolator and elastomeric element, with lower rod capable of 30 degrees total misalignment without contact on spring housing.

N. Seismic Restraints: Floor or pad mounted equipment that do not require vibration isolators, shall be bolted to floor or other support. Floor mounted equipment with vibration isolators shall be provided with lateral and vertical restraining devices on all sides of base to restrict displacement of equipment. On all sides of suspended equipment, provide bracing for rigid supports and provide aircraft cable restraints for resiliently supported equipment.

O. Ductwork, duct acoustical lining, manual volume dampers and flexible ducts: Do not reduce length of duct runs, duct acoustical lining, manual volume dampers and flexible ducts for economy.

P. Installation of flexible ducts at air inlets and outlets: Do not attach flexible ducts directly to air inlets and outlets unless a straight, smooth and uniform air flow can be achieved with sufficient




space to make an elbow with a radius of at least three times the diameter of the duct. If sufficient space is not available to make such an elbow, provide a rigid elbow or a lined plenum.

Q. Placement of Air Devices: Do not relocate air devices without the Architect’s approval.

3.02 EXAMINATION

A. Arrange for the services of a certified representative of isolation manufacturer to visit the Project site for inspecting installation of devices. In the event the isolators do not meet specified requirements perform necessary revisions. Submit a written report to the Architect, signed by above representative, indicating all devices are properly installed and are operating as specified or required by isolation manufacturer.

END OF SECTION

Willow Adult School AUDIO/VIDEO COMMUNICATIONS Conference Room Renovation 27 41 00 - 1 tBP/Architecture Project No. 21000.01

SECTION 27 41 00

AUDIO/VIDEO COMMUNICATIONS

PART 1 - GENERAL

1.01 SCOPE

A. Work Included: All labor, materials, appliances, tools, equipment, facilities, transportation and services necessary for and incidental to performing all operations in connection with furnishing, delivery and installation of the work of this Section, complete as shown on the Drawings and/or specified herein. Work includes, but is not necessary limited to the following:

1. Examine all other Sections for work related to those other Sections and required to the included as work under this Section.

2. General Provisions and Requirements for electrical work.

3. Design, provides equipment for, and installs a complete instructional classroom Audio-Video technology system.

1.02 RELATED WORK:

Document affecting work of this Section include, but are not necessarily limited to, General Conditions, Supplementary Conditions and Sections of Divisions 1 and 26 of these Specifications.

A. The work described by this part includes the furnishing of all materials, equipment, supplies, labor and the performing of all operations necessary for the installation of complete and operating systems.

B. District has elected that the AV systems equipment be Contractor furnished and Contractor installed.

C. The Contractor shall provide the latest equipment of equal or better Specification to any item listed where the model number is no longer available.

D. Refer to the Telecommunications Drawings and AV riser diagrams for all required equipment and cabling. Equipment and quantities listed on the AV riser diagrams supersedes equipment listed in this Specification.

1.03 GENERAL REQUIREMENTS

The Installing Communications Contractor shall be a factory authorized Distributor and warrantee station for the brand of equipment specified and shall maintain a fully equipped service organization capable of furnishing adequate repair service to the equipment. The Installing Communication Contractor shall maintain a spare set of all major parts for the system at all times. All circuit boards, amplifiers and control sub systems shall be 100% backed up with stock at Contractor’s shop.

1.04 QUALITY ASSURANCE:

A. Electrical Component Standard: Provide work complying with applicable Requirements of NFPA 70 "National Electrical Code" including, but not limited to:

1. Article 250, Grounding.


2. Article 300, Part A. Wiring Method.

3. Article 310, Conductors for General Wiring.

4. Article 725, Remote Control, Signaling Circuits.

5. Article 800, Communication Systems.

B. EIA Compliance: Comply with the following Electronics Industries Association Standards:

1. Sound Systems, EIA-160.

2. Loudspeakers, Dynamic Magnetic Structures, and Impedance, EIA-299-A.

3. Racks, Panels, and Associated Equipment, EIA-310-A.

4. Amplifiers for Sound Equipment, SE-101-A.

5. Speakers for Sound Equipment, SE-103.

C. Installation and startup of all systems shall be under the direct supervision of a local Agency regularly engaged in installation, repair, and maintenance of such systems. The Supplier shall be accredited by the proposed Equipment Manufacturers and be prepared to offer a Service Contract for system

1.05 SUBMITTALS (ADDITIONAL REQUIREMENTS)

A. Submit Product Data Sheets for all wire, supports, conduit, fittings and splicing equipment.

B. Product Data:

1. Provide a complete bill of materials, including all quantities of components, devices, equipment, and wiring required to complete this work.

2. Submit product data, including Manufacturer’s data sheets for all proposed system components.

C. Shop Drawings, Indicate on a Floor Plan for each room system topology with the following:

1. All equipment part numbers shall be listed to the bill of materials and the System Drawings.

2. Configuration.

3. Wiring diagram.

4. Sizes.

5. Materials.

6. Finishes.

7. Locations.

8. Utility connections, types, and locations.

D. Manufacturer's Qualification Statement.

E. Specimen Warranty.

F. Certificate: Certify that products of this Section meet or exceed Specified Requirements.

G. Evaluation Service Reports: Show compliance with Specified Requirements.

H. Installer's Qualification Statement.

I. Project Record Documents: Record actual locations of equipment and wiring types with color coding.


J. Warranty: Submit Manufacturer warranty, dated at Substantial Completion and ensure that forms have been completed in District's name and registered with Manufacturer.

K. Maintenance Materials: Furnish the following for District's use in maintenance of project.

1. See Section 01 60 00 - Product Requirements, for additional provisions.

2. Spare Parts: One of each kind of equipment or portable device.

3. Tools: One each of every special tool required for maintenance of equipment.

1.06 REFERENCE STANDARDS

A. ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials; 2010b.

B. NFPA 70 - National Electrical Code; National Fire Protection Association; Most Recent Edition Adopted by Authority Having Jurisdiction, Including All Applicable Amendments and Supplements.

1.07 ADMINISTRATIVE REQUIREMENTS

A. Coordination: Coordinate the installation of conduits, switches, and equipment with size, location and installation of service utilities.

B. Pre-installation Meeting: Conduct a pre-installation meeting one week prior to the start of the work of this Section; require attendance by all affected Installers.

C. Sequencing: Ensure that utility connections are achieved in an orderly and expeditious manner.

1.08 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in manufacturing products specified in this Section, with not less than 3-years of documented experience.

B. Installer Qualifications: Company specializing in performing the work of this Section with minimum 5-years of experience.

1. Must be an Authorized Extron Reseller at time of bid.

2. Must be an Epson Reseller at time of bid.

3. Must have a CTS-D Engineer on Staff at time of bid.

4. Must have a RCDD on Staff at time of bid.

5. Installing Technicians must be Trained and Certified for the implementation of PoleVault Systems at time of bid.

1.09 DELIVERY, STORAGE, AND HANDLING

A. Deliver Equipment to Project Site in unopened boxes.

B. Store Equipment under cover and elevated above grade.

1. Equipment shall be kept in a locked environment to avoid theft.

1.10 WARRANTY

A. See Section 01 78 00 Closeout Submittals, for Additional Warranty Requirements.

B. Correct Defective Work within a 2-year period after Date of Substantial Completion.


C. Provide 5-year Manufacturer Warranty for Equipment.

PART 2 - PRODUCTS

2.01 REGULATORY REQUIREMENTS

A. All systems must be approved under Part 15, Subpart B, and Section 17.107b of the FCC Rules and Regulations.

B. All Material and Systems must be UL approved.

C. The System shall follow Local and National Codes and be installed in accordance.

D. All enclosures and A/V equipment shall be anchored to the structure and shall comply with CBC Section 163A.

2.02 BASE BID MANUFACTURER

A. Extron Electronics: www.extron.com; 1230 South Lewis Street, Anaheim, California 92805, (714) 491-1500 or (800) 633-9876.

B. Other Acceptable Manufacturers:

1. Substitutions: Extron matches District Standards. No substitutions will be approved.

2.03 SYSTEM DESCRIPTION

A. Provide a complete Audiovisual System in each room where shown on Plans. The system switching and audio amplification equipment shall be securely mounted and concealed in an enclosure mounted to the ceiling. Audio and image source equipment can be connected to the system and displayed via active (powered) interface panels located throughout the room. The audio and image signals from source devices shall be transmitted from the active interface panels over standard UTP Cabling Architecture.

B. Conference Room Definition: Rooms that has fixed instructional media video projection capabilities, internet connectivity at the operator's station, student networking (usually wireless), a document camera, DVD/VCR and-or other multimedia input devices, standard laptop inter-face, multimedia control system that is connected to the network and capabilities for additional add-on modular features.

C. Technology Enhanced Classrooms (TECs) use standardized control/interface systems and employ a standardized operational protocol. The principles of this recommendation are to establish desirable goals with respect to classroom design and installed technology. The TEC Classroom Standard includes control systems that have ADA, Section 508 compliant buttons that are discernible without activating the controls or buttons on the control panel, easily reached control panel locations, closed captioning, hearing assistance capability and user friendly operator protocols among the features that are consistent with universal design principles.

D. Provide the following media source equipment for the audiovisual system in each classroom, conference room and platform area listed above and shall include the following:

1. Pole Vault PVM220

2. District provided, Contractor installed LCD projector

3. All required connectors, cabling and installation for a complete Audio/Video Integrated System


2.04 GENERAL EQUIPMENT REQUIREMENTS

A. The room shall be equipped with a standard easy to operate teacher interface (a tactile button keypad layout). The audio system may be monaural or stereo for program sound. The instructional media system will be controlled by a control system with a control panel mounted near the operator's area. System parameters can be monitored, administered and controlled over the data network. The instructional media equipment will be located within close proximity to the operator's area or through a Graphical User Interface (GUI) on a computer to allow for ease of operation during instruction.

B. Acceptable functionality Requirements are listed below in this Specification categorized by type of equipment. Quantities are listed for movable, portable or loose equipment, and other selected entries. Where quantities are not listed, refer to the System Drawings.

C. Deviations from this Specification must be documented in writing to the Architect and Owner at least 10-business days before the submittal date.

D. The System Components shall all be correctly listed and labeled by Underwriters Laboratories Incorporated (UL) for their intended use.

E. All products shall be new and under warranty at the time of installation. B-stock, previously installed, refurbished or used equipment shall not be allowed on this Project.

F. Where Specification lists several Manufacturers for a major item, or group of items, the A/V Contractor shall provide that entire item from one Manufacturer only.

G. The Contractor shall provide all options, accessories and hardware necessary to meet the function of the design even if they are not specifically listed (i.e. mounting kits, separate or additional power supplies, input modules, transformers, etc.).

2.05 RACK MOUNTED EQUIPMENT

A. Equipment rack – Contractor furnished and installed

1. Hinged/locking Plexiglas front door and non-vented side panels with tamper proof screws.

2. Hinged/locking rear louvered door with ventilation openings at bottom.

3. Ventilating top panel with four thermostatically speed-controlled ventilation fans with whisper quiet operation and wire guards. Include power outlets and cords to connect fans.

4. Cable management system including telescoping lacer bars.

5. Seismic floor anchors.

6. Vertical copper ground bus bar.

7. Rack isolation to insulate rack from floor.

8. Blank panels between heat generating equipment and filler panels.

9. Textured black enamel finish.

10. Nominal rack size: 24-inches wide by 28-inches deep by maximum 84-inches high.

B. Audio Equipment in Rack

1. Four Electrovoice #CPS Series power amplifiers, number of channels as indicated on Plans. Four-channel amplifiers shall be #CPS4.5. Two-channel amplifiers shall be #CPS2.12.


2. Electrovoice #Dx46 speaker controller with equalization and full speaker protection package. Provide software for programming via laptop computer and control port for selection of presets via the touch-screen control system.

3. Yamaha #IMX644 rack mounted mixer with equalization and memory presets.

4. Telex ST-300 Series personal listening system transmitter with remotely mounted antenna for the hearing impaired.

5. Two Electrovoice #RE-2 UHF wireless microphone receivers with remote antennae. Provide two Electrovoice #ADP-4+ UHF antenna distribution systems and four FA-XX remotely mounted antennae, each with #AB-2 mounting bracket, cables and terminators.

6. Pink noise generator to facilitate system set up.

C. Video Equipment in Rack

1. Extron #DVS605A Presentation Scaler/Switcher with control port for operation via the touch-screen control system, and LAN connection.

2. Extron #MVX 48 VGA A Series matrix switcher with control port for operation via the touch-screen control system.

3. Pioneer #BDP-V6000 Blu-Ray DVD/CD player control port for operation via the touch-screen control system, and LAN connection.

4. Extron #AVT 200HD high definition TV tuner with stereo audio output and control port for operation via the touch-screen control system, and LAN connection.

5. Three Extron #P/2 D2xi VGA distribution amplifiers.

6. Two Extron #MTP RL 15HD a SEQ twisted pair receivers.

7. Extron #VSC 500 Series scan converter.

8. Extron #SME 100 HD streaming media encoder with RS232C control port, and LAN connection.

D. Miscellaneous Rack Equipment

1. Extron #IPCP 505 Control Processor for control of system components.

2. Extron #PS-124 12-volt dc power supplies for various components in the system.

3. Custom power sequencing system including controllers and 20-amp power modules connected to control six 120-volt branch circuits so that rack equipment is sequentially turned on with amplifiers turned on last. Provide surge suppressor for each power module.

4. Provide flush mount switch with LED status lights for mounting external to the rack so that system can be remotely turned on.

5. Rack mounting hardware for all system components.

2.06 FIXED EQUIPMENT

A. Provide the following Audio Visual System as an all-inclusive system as described below, one system for each room:

1. Projector Mounting - shall be mounted using the following components.

a. Extron PCM 340 projector drop ceiling mount with adjustable pole.


1) The PCM 340 projector mount must be capable of mounting to the structural ceiling (concrete or wood joists) above the suspended t-bar ceiling via turn-buckles and tie wire or threaded rod, to provide a full 100 degrees of adjustment enabling a PMP Series pole to hang level.

2) The mount shall be capable of supporting up to 50 pounds (23kgs) of A/V equipment.

3) The mount must also include a 1.5-inches threaded pipe adapter for projector mount poles.

b. Extron Universal Projector Bracket.

1) The bracket shall be able to support projectors up to 25 pounds.

2) The projector bracket must have independent adjustments of horizontal tilt or roll (±4 degrees of horizontal tilt), vertical angle or pitch (±25 degrees of vertical angle), and rotation or yaw (360 degrees of rotation).

3) The projector bracket shall also use a 1.5-inches NTP (National Tapered Pipe) threaded pipe adapter for mounting a projector pole.

4) The projector bracket should also maintain positioning adjustments even if the projector is removed for service.

5) The bracket should also feature security flanges that enable the entire unit to be padlocked to prevent theft.

c. Extron Projector Mounting Pole.

1) The projector mounting pole shall be 1.5-inches NTP (National Tapered Pipe) threaded pipe threaded at both ends to facilitate mounting the projector to the ceiling mount and to the universal projector mount.

2) The projector mounting pole shall be of a custom length for proper mounting from building structure.

3) The pole shall provide a cutout section to all for cable access.

d. Extron Pole Mount Kit.

1) The Project Mounting Kit is a lightweight, fully enclosed vented housing for quickly installing and securing Extron PoleVault System components above a pole-mounted projector. These products may be Extron PVS 305SA TP, Switcher, power supplies, audio amplifiers, IP Link products and other Extron quarter rack product options.

2. Media Source Switching:

a. System source selection and switching shall be provided by a PVS A/V Switcher.

b. The switcher shall have two RGB video inputs capable of VGA - UXGA RGBHV, RGBS, RBsB and RsGsBs input resolution via two pairs of female RJ-45 connectors.

c. The switcher shall have two inputs that can be configurable for either composite video via two female RJ-45 connectors or two additional RGB video inputs capable of VGA-UXGA RGBHV, RGBS, RBsB an RsGsBs input resolution via two pairs of female RJ-45 connectors.

d. Audio input shall be via four stereo, balanced/unbalanced inputs via the same four and/or six RJ-45 RGB and composite video connectors.

e. The switcher shall have two video outputs, one RGB output capable of outputting VGA - UXGA RGBHV, RGBS, RBsB and RsGsBs (following input type) via a 15-pin HD female connector and one composite video via one RCA female connector.


f. Connection from the switcher to the display device shall be provided with one 3-foot VGA to VGA and one 3-foot composite video cable.

g. An onboard audio amplifier shall provide gain/volume adjustment from -10db to +10db, adjustable in 1db steps. The speaker amplifier shall have two channels, one stereo (default) or dual mono channels via one 5.0mm 4 pole captive screw connector. The output of the amplifier shall be 25watts (rms) per channel at 2/4/8 ohms.

h. In addition to the stereo/mono speaker output, an additional audio output that will produce line level output shall also be available. This line level audio output must be capable for being set at with "fixed" or "variable" and with Balanced or Unbalanced settings.

3. Media Source Control:

a. Provide Media Source Controllers, MLC 104 IP Plus, in each designated classroom.

b. The room media sources shall be controlled with a MediaLink Controller with IP Link.

c. The MediaLink Controller shall contain six tri-color, multi-status LEDs push-buttons for device selection and projector on/off control. A rotary volume control knob with five LED volume indicators shall permit system volume level control.

e. The MLC Controller shall feature Extron IP Link Ethernet for monitoring, scheduling and control. This IP technology shall enable the device to be controlled, scheduled, and monitored over a LAN, WAN or the Internet using Extron Global Viewer or MLC controller software.

f. The Controller shall contain a serial host port which shall consist of one bi-directional RS-232 front panel 2.5mm mini stereo jack. This host connection port shall be for configuration and control of the controller itself and to install device drivers for the equipment to be controlled.

g. The Controller shall also feature two bi-directional serial ports to provide device control. These two ports shall control the display device and PBS Switcher respectively via two bi-directional RS-232 control via one 3.5mm direct insertion captive screw connector.

h. The MLC Controller shall also have two configurable (via software) digital input/out-puts for devices such as sensors, switches, LEDs and relays via one 3.5mm 4-pole direct insertion captive screw connector.

i. Connection from the MLC Controller to the display shall be provided by one 50-foot Projector control cable.

j. Connection from the MLC Controller to the PVS Switcher shall be provided by one 50-foot Switcher Control cable.

4. Audio and Speech Reinforcement:

a. Speakers: In suspended ceiling applications, provide two pairs of Extron FF120 speakers in each designated classroom and conference room.

1) These speakers shall be 3.5-inches deep low profile featuring a deep aluminized composite enclosure, rectangular shape with a metal grille.

2) The coverage angle of the speaker offers an extraordinary wide dispersion area of 170 degrees, providing a very wide room coverage pattern.


3) Meeting the Regulatory Compliance Safety Specifications of NFPA90A, NFPA70, UL listed for use in plenum air-spaces, meets UL 2043 for heat and smoke release meets UL 1480 for commercial and professional audio.

4) The speakers feature a frequency response of 68Hz to 18kHz-10db, half space.

5) The power capacity is 16watts of continuous pink noise or 32watts of continuous program media.

6) The nominal impedance is 8ohms.

7) The input connector shall be one 5mm captive screw for one input.

8) Connection from the PVS 305SA Plus switcher to the FF120 speaker is provided by one 50-foot plenum rated 18 Gauge Speaker Cable Extron SPK-18.

5. Media Source Interfacing:

a. The media source equipment shall be connected to the audiovisual system via two or four Active (powered) Twisted Pair Transmitter Wall Plates as shown on Plans. These wall plates shall enable the system to display video and graphic data from Laptop computers, DVD and VCRs, document camera, camcorders, etc.

b. These active interface transmitters shall be placed in convenient locations throughout the room to facilitate easy connection of sources.

c. Provide two types of active interface transmitter panels. The RGB Video Twisted Pair Transmitter – Wall plate shall be used to connect up to one RGB device to the system and transmit the video and audio data to the switcher.

d. The RGB Video Twisted Pair Transmitter - Wall Plates shall fit a standard, single-gang electrical box with typical type faceplates.

e. The RGB Video Active Twisted Pair Transmitter – Wall plates shall transmit RGB video over UTP cable to the PVS Switcher and support video input resolutions of VGA - UXGA RGBHV, RGBS, RBsB and RsGsBs via one female 15-pin HD connector. The RGB input plate shall also support EDID emulation.

f. Stereo audio shall be input via one 3.5mm mini stereo jack.

g. Connection to each PVT RGB D shall be provided via an Extron male VGA to male VA and male 3.5mm TRS to male 3.5mm TRS cable for RGBHV and audio, length to be coordinated by Owner.

h. The output of the interface shall be via two female RJ-45 connectors.

i. Connection to the PVS Switcher shall be via two UL plenum rated UTP cables.

j. The System shall include one Extron PVT CV D Composite Video Twisted Pair Transmitter – Wall Plate.

k. The Composite Video Active Twisted Pair Transmitter – Wall Plates shall transmit composite video over UTP cable to the PVS Switcher and support video input via a RCA female connector.

l. The Composite Video Twisted Pair Transmitter – Wall plates shall fit in a standard, single-gang electrical box and feature Decora® type faceplates.

m. Stereo audio shall be input via two RCA female connectors.

n. Connections to the PVT CV D from the DVD/VCR shall be provided via one Extron male 3 x RCA to male 3 x RCA cable for composite video and audio, cable length to be coordinated by Owner.

o. The output of the interface shall be via one female RJ-45 connector.

p. Connection to the PVS Switcher shall be via one UL plenum rated UTP cable.


q. Provide USB Extender D Rx and connect via one UL plenum rated UTP cable to USB Extender Rx located at the PVS switcher.

2.07 ACCESSORIES

A. Supports:

1. All supports shall meet or exceed the load Requirements of the intended application with a minimum safety factor of five.

2. Provide support structure and hardware with a SAE Grade 8 load rating (minimum).

PART 3 - EXECUTION

3.01 GENERAL

A. All Equipment and Enclosures described in this Specification shall be installed plumb and square per Manufacturer’s instructions.

B. All Equipment, except that designated as movable, portable or loose equipment shall be secured and permanently attached to the permanent structure in a manner which will require the use of a tool (e.g.: screw driver, nut driver, etc.) for removal.

3.02 EXAMINATION

A. Site Verification of Conditions: Verify that related conditions, including equipment that has been previously installed under other sections, are acceptable for product installation in accordance with Manufacturer’s instructions.

B. All Devices Connected to Equipment specified in this section shall bear the UL label and comply with the applicable California Electrical Code (CEC) Standards.

3.03 INSTALLATION

A. Contractor shall furnish all equipment, labor, system setup, and other services necessary for the proper installation of the products/system as indicated on the Drawings and specified herein. System setup information shall include each components proper mounting and alignment and properly verified signal pathways and operation. Proper operational and network support control functions shall be verified.

B. Install in accordance with Manufacturer’s handling and installation instructions.

C. Install in accordance with all Local and Pertaining Codes and Regulations

D. Utilize an Installer with demonstrated experience in Projects of similar size and complexity.

E. Equipment shall be configured and ready for use to condition at the end of installation.

F. Energize and commission equipment in accordance with Manufacturer’s instructions.

3.04 TESTING AND TRAINING

A. Demonstrate proper operation of all equipment to the Project Inspector.

B. Provide 8-hour on-site training by qualified Technicians on system operation.

3.05 PROTECTION AND CLEANING

A. Storage and Protection: Store materials protected from exposure to harmful environmental conditions and at temperature and humidity conditions recommended by the Manufacturer.


B. Repair or replace damaged components before Substantial Completion of the Project.

C. Remove temporary tags, coverings, and construction debris from interior and exterior surfaces of the equipment. Remove construction debris from equipment area and dispose of properly.

3.06 FIELD QUALITY CONTROL

A. Manufacturer's Field Services: Provide services of a duly factory authorized Service Representative for this project location to supervise the field assembly and connection of components and the pre-testing, testing, and adjustment of the system.

B. Inspection: Make observations to verify that units and controls are properly labeled and inter-connecting wires and terminals are identified. Provide a list of final tap settings of paging speaker line matching transformers.

C. Testing:

1. Provide all instruments for testing and demonstrating in the presence of the District's Inspector that the system is operating as stated in the factory data sheets. Check all circuits and wiring to verify they are free of shorts and grounds. Perform all tests stated in each separate System Specification.

2. The Contractor shall time align and balance the system and shall report the on-axis frequency results after equalization of the system. The Contractor shall also measure and report:

a. Maximum program material sound level and related headroom.

b. Maximum system gain, and

c. Hum and noise signal-to-noise ratio of the overall system for each mike input channel.

3. Rectify deficiencies indicated by tests and completely re-test work affected by such deficiencies at Contractor's expense. Verify by the system test that the total system meets the Specifications and complies with applicable Standards.

4. The District reserves the right to make independent tests of all equipment furnished to determine whether or not the equipment complies with the Requirements specified herein and to accept or reject any or all of the equipment on the basis of the results thereby obtained.

5. The Contractor shall adjust system gain controls for optimum S/N ratio so that full amplifier output will be achieved with 0dBm at a line-level input. Contractor shall also verify correct polarity of the cluster speakers and verify all operational functions at each control device. Each of these items shall be documented and reported in a test report to be included as part of District’s Manual.

3.07 IN SERVICE TRAINING

A. Train District's Maintenance Personnel in the procedures and schedules involved in operating, troubleshooting, servicing, and preventative maintenance of the system. Provide a minimum of two 4-hour training sessions at completion of the project, one for Operations and Maintenance Personnel and one for Teaching Staff. Operator’s Manuals and Users Guides shall be provided at the time of this training.

B. Provide an additional 4-hour refresher training course within 12-months of acceptance of the project when requested by the District.


C. Schedule training with District through the Architect, with at least 7-days advance notice. This instruction time shall be divided as directed by the District.

3.08 WARRANTY

A. The entire system shall be warranted free of mechanical or electrical defects for a period of 1-year after final acceptance of the installation. Any material showing mechanical or electrical defects shall be replaced promptly at no expense to the Purchaser.

B. The Contractor shall maintain a competent service organization and shall, if requested, submit a service maintenance agreement to the District after the end of the guarantee period.

C. A typewritten notice shall be posted at the equipment rack which shall indicate the firm, address and telephone number to call when service is necessary. The notice shall be mounted in a neatly finished metal frame with a clear plastic window and securely attached to the inside of the door.

END OF SECTION 27 41 00

020420/212250

Willow Adult School ASSISTIVE LISTENING SYSTEM Conference Room Renovation 27 51 26 - 1 tBP/Architecture Project No. 21000.01

SECTION 27 51 26

ASSISTIVE LISTENING SYSTEM

PART 1 - GENERAL

1.01 SCOPE

A. Work Included: All labor, materials, appliances tools, equipment, facilities transportation and services necessary for and incidental to performing all operations in connection with furnishing, delivery and installation of the work of this Section, complete as shown on the Drawings and/or specified herein. Work includes, but is not necessarily limited to the following:

1. Examine all other Sections for work related to those other Sections and required to be included as work under this Section.

2. General Provisions and Requirements for electrical work.

1.02 SUBMITTALS (ADDITIONAL REQUIREMENTS)

Submit block wiring diagrams and catalog data showing component interconnection and descriptive literature for all component parts and cabinets.

1.03 EQUIPMENT QUALIFICATION

A. All Equipment shall conform to Federal, State and Local applicable Codes, Ordinances and AHJ, and shall be listed and labeled by Underwriters Laboratories.

B. Assistive-Listening Systems

1. Assistive-listening systems shall be provided in accordance with CBC Section 11B-219 and shall comply with CBC Section 11B-706.

2. The minimum number of receivers to be provided shall be equal to 4% of the total number of seats, but in no case less than two. 25% minimum of the receivers provided, but no less than two shall be hearing-aid compatible in accordance with CBC Section 11B-706.3.

3. If the system provided is limited to specific areas or seats, then such areas or seats shall be within a 50-foot viewing distance of, and have a complete view of, the stage or playing area. CBC Section 11B-219.4.

PART 2 - PRODUCTS

2.01 GENERAL

A. The Assistive Listening System shall include the following items

1. Instructor (program source) wireless transmitter units.

2. Student (audience) portable wireless receiver units.

3. Plug-in microphones and earphones, for each unit.

4. Multiple program source inputs for, Instructor’s microphone, respective room audio/ video A/V system input/output and Instructor’s computer audio input/output.


5. System accessories.

B. Function

1. The Assistive Listening System shall provide amplified available audio programs for hearing impaired students/audience, originating from classroom/ stage/room instructors and audio/video instructional program source materials, and equipment in respective building spaces, rooms, classrooms and outdoor areas.

2. The audible program shall be transmitted wireless from the program source to the student/audience, with reception coverage throughout not less than approximately 80% of the respective floor space/area space.

3. Shall provide automatic stereo or mono audio full system operation, depending on pro-gram source input.

4. The system in each space shall comply with Federal ADA, State and Local AHJ Require-ments for the hearing impaired.

2.02 MATERIALS (RF WIRELESS)

A. General

1. Power for each portable unit operation shall be supplied by internal, changeable rechargeable NiCad batteries and alternately by alkaline disposable batteries. Recharge-able batteries shall be recharged without removal from the unit. Each unit shall have a charging indicator light. The batteries shall be recharged from either a portable charger/ organizer and with wall transformer/two unit chargers. The units shall operate for up to 40-hours with alkaline batteries, and up to 10-hours with NiCad (NiMH) batteries. The batteries shall be rechargeable without removal from unit.

2. Provide power on-off control on each unit, to extend battery duration.

3. A protection circuit shall prevent battery “back-drain” if the power to the charger is turned off while the unit is being recharged.

4. The receivers and transmitters shall be US Government FCC and Industry Canada-approved, for FM-RF (radio frequency) wireless operation.

5. All components shall be the product of the same Manufacturer.

6. As manufactured by Williams Sound; or PhonicEar; or Listen Technologies; or Centrum Sound.

B. Instructors Portable (Program Source) RF Transmitter Units

1. The transmitter, shall be compact, easily portable units, self-contained ABS, plastic housing/enclosure shall clip to a pocket or belt.

2. Each portable transmitter shall provide RF transmitting on one of the US Government 40 different FCC – and Industry Canada-approved narrow-band channels in the 72-86MHz RF band.

a. Line-of-sight transmits distance range of not less than 100-feet up to 150-feet from transmitter to receiver.

3. Easy-to-read channel label and volume adjustment on the front unit face. Stereo and mono audio processing.


4. 3.5mm auxiliary input jack that allows transmission of audio from an auxiliary source such as a cassette recorder, computer, CD/DVD player or television audio source. The transmitter shall also provide a second 3.5mm microphone input source jack. The two input sources shall be simultaneously operational to provide a mixed signal output RF transmission of the two sources.

5. Select the separate independent RF transmission frequency for each transmitter to pre-vent transmission interference between units and to provide for at least two student receiver units to selectively overlap reception of the transmitter.

6. Quantity of Instructor’s portable RF transmitters

a. Provide quantity of four Instructor portable transmitters, two-on low band; one-on mid band and one-on high band RF frequencies.

b. Provide a quantity of one portable transmitter at the respective room audio/video (A/V) equipment, program output source. Provide 120 volt AC-to-DC power-supply for portable transmitter at the A/V equipment location.

7. Extended range fixed base non-portable RF transmitter.

a. Provide fixed location non-portable base unit RF transmitter for spaces larger than 9,000 square foot indoor or outdoor spaces.

b. Shall have the same RF characteristics and performance as the portable transmitter except as follows:

1) Line-of-sight transmits distance range of not less than 800-feet from transmitter to receiver.

2) Fixed install location non-portable, with NEMA-1 metal housing.

3) Radiated RF energy intensity shall provide manual attenuation adjustments to prevent multiple adjacency RF interferences.

c. Provide a student/audience portable RF receiver unit at the RF base unit to receive RF signals from an instructors RF transmitter. Connect to the base unit to rebroad-cast. Provide a self-contained 120-volt AC-to-DC power-supply for the portable receiver at the base unit transmitter.

d. Shall operate on 120 volt 60Hz AC branch circuit. Provide remote system master on-off control.

e. Provide remote RF antenna (outdoor/indoor) rated, for fixed base RF transmitter. Antenna shall extend the transmitter range for large spaces. Provide two RG-6 coaxial cable connects from antenna to base transmitter.

C. Student/Audience Receiver Units

1. The multi-channel narrow-band FM receivers shall be compact easily portable units, self-contained ABS/plastic housing/enclosure and shall clip to a pocket or belt.

2. The receiver shall provide an on/off switch and volume control which adjusts the output level as required by the listener.

3. The receiver shall have a 3.5mm output jack which accepts one of any of the plug-in listening accessories. Headsets shall provide magnetic induction pick-up for hearing impaired, hearing aid interface operation.

4. The receiver shall have an easy-to-read channel label on the front face. The receiver shall incorporate an automatic squelch circuit which eliminates white noise when the receiver is out of transmission range. Stereo and mono audio reception and processing.


5. The multi-channel receiver shall receive any six of the US Government forty different FCC- approved narrow-band FM frequencies within the 72-76MHz band from the respective transmitter units. The user shall be able to change to any one of these six frequencies by using a slide or rotary switch on the receiver. Label on the front face shall indicate the receiver is a multi-channel unit. A label inside the battery compartment shall indicate the six channels that are available to the user.

6. Quantity of portable RF receivers

a. Provide a quantity of two receivers with matching frequencies for each transmitter, not less than eight total quantities of receivers.

b. Provide a quantity of one receiver with matching RF frequency of the transmitter at the respective room audio/video (A/V) equipment, program input source. Provide 120 volt AC-to-DC power-supply for portable receiver at the A/V equipment location.

c. Provide hearing aid compatible units at a ratio of one per four receivers in accordance with ADA 219.3.

D. RF System Accessories

1. Battery recharger portable charger/organizer pack.

Locking, portable case with cover, shall accept a group of not less than twelve plug-in portable transmitter and receiver units in each pack for simultaneous multi-unit battery recharging. Provide a quantity of one organizer for each quantity group of twelve (or fraction thereof) transmitters receivers provided as part of the Contract.

2. Stereo audio headset style automatic noise canceling microphone, integral on-off-volume control and with behind the neck support style each with cable and outlet plug-jacks to match transmitter jacks. Provide two cables for each transmitter.

3. Equipment wall mount support brackets.

4. Auxiliary audio program source 15-feet long cables with plug-in at both ends to match transmitter jacks. Provide two for each transmitter.

5. Stereo audio headset style ear phones with cable and plug to match receiver jacks. Head-sets shall provide magnetic induction pick-up for hearing impaired, hearing aid interface operation. Provide one headset for each receiver.

6. Rechargeable Ni-Cad (NiMH) batteries, one complete set for each transmitter and receiver unit.

7. Locking auxiliary equipment storage cases for cables, microphones and headsets, with quantity and capacity for all auxiliary accessories furnished as part of the Contract.

2.03 MATERIAL (INFRARED WIRELESS)

A. General

1. All equipment shall be the product of the same Manufacturer.

2. The receivers and transmitters shall be US Government FCC and Industry Canada-approved.

3. Provide power on-off control on each unit, to extend battery duration.

4. As manufactured by Williams Sound; or PhonicEar; or Listen Technologies; or Centrum Sound.


B. Master (Program Source) Transmitter (Infrared Emitter) Units

1. The infrared emitter/transmitter shall be compact, portable units, self-contained ABS/ plastic housing/enclosure.

2. The emitter panel shall be a dual-channel system operating on both 2.3 and 2.8MHz invisible infrared light waves frequencies. The channels shall be designated “CHANNEL A” for the left and “CHANNEL B” for the right.

3. The emitter shall provide left and right AUDIO IN jacks to accept an input signal from a sound system, left and right “SYNC IN/SYNC OUT” jacks for master/slave daisy-chaining with other emitters if desired, and left and right “MIC-IN” jacks to accept an audio signal from a microphone or Audio/Video preamplifier.

4. The emitter shall provide separate LED input level detectors for each channel which illuminate when the audio signal peaks. Stereo and mono audio processing.

5. The emitter shall be mounted by the following methods:

a. Fixed to a wall with an adjustable, wall-mounting support bracket accessory.

b. Portable mounted to a table-top-or floor-stand, using accessory support-stand adapter.

6. Each emitter shall provide an array of not less than 130-infrared LEDs covered by an infrared transparent acrylic lens. The infrared signal from each emitter shall cover not less than 3,000 square feet (32,000 cubic feet) enclosed space. Note: For room sizes smaller than 3000 square feet, the infrared transmitter/ emitter infrared output shall be reduced to accommodate the actual smaller room square feet size and height.

7. 120 volt 60Hz AC input to nominal 24-volt DC output (plug-in “power-brick”) power supply external transformer shall be UL approved, with cable “plug-in” connection to emitter/transmitter. Provide remote system master on-off control.

8. Slave emitter/transmitter for rooms exceeding 30,000 cubic feet. Provide one additional infrared emitter/transmitter repeater slave unit, for each additional 30,000 cubic feet room volume, or fraction thereof. The slave repeater shall receive and retransmit the program signals from the master unit. Provide one 100-foot long “master-to-slave” auxiliary portable extension wire cable for each slave unit.

9. Provide wall mount plug-in outlets for instructors’ microphone outlet connect ports to emitter/transmitter.

a. Provide 1.0-inch conduit and wire, homerun connect from microphone outlet to each room respective emitter/transmitter and slaves. Provide conductors as recommended by Manufacturer.

b. Provide 1.0-inch conduit and wire homerun connect from microphone outlet to respective room Audio/Video (A/V) equipment, microphone program source input. Provide conductors as recommended by Manufacturer.

10. Provide a quantity of nine emitter/transmitter “master” units, plus additional “slave” units for adjusted room sizes.

C. Student/Audience Receiver Units

1. Battery Power

a. Power for each unit operation shall be supplied by internal, changeable recharge-able NiCad batteries and alternately by alkaline disposable batteries. Rechargeable


batteries shall be recharged without removal from the unit. Each unit shall have a charging indicator light. The batteries shall be recharged from either a portable charger/organizer and with wall transformer/two unit chargers. The units shall operate for up to 40-hours with alkaline batteries, and up to 15-hours with NiCad (NiMH) batteries.

b. Provide power on-off control on each unit, to extend battery duration.

c. A protection circuit shall prevent battery “back-drain” if the power to the charger is turned off while the unit is being recharged.

2. The receiver shall be a dual-channel unit for wearing around the neck with an adjustable strap. Stereo and mono audio reception and processing.

3. Compatible with the transmitter (emitter) and operate on 2.3MHz and 2.8MHz frequencies invisible infrared light waves. Self-contained and switchable from “CHANNEL A” to “CHANNEL B” through a switch located on the back of the unit.

4. The receiver shall provide an infrared light-gathering lens on the front of the unit to focus the light signal from the emitter onto the infrared detector element. The receiver

shall detect and decode the infrared emitter/transmitter light source within a 160 acceptance angle.

5. Audio squelch circuit which turns the output circuit off when the infrared signal is reduced or not received, with on/off and volume control.

6. Output jack, which accepts any of the listening accessories. Headsets shall provide magnetic induction pick-up for hearing impaired, hearing aid interface operation.

7. Shall be compact easily portable units, self-contained ABS/plastic housing/ enclosure with red infrared receiver lens; shall clip to pocket or belt.

8. Provide quantity of two infrared receivers for each master transmitter, not less than eight total quantities of receivers.

D. Infrared System Accessories

1. Battery recharger portable charger/organizer pack.

Locking, portable case with cover, shall accept a group of not less than twelve plug-in portable transmitters and receivers units in each pack for simultaneous multi-unit battery recharging. Provide a quantity of one organizer for each quantity group of twelve (or fraction thereof) receivers provided as part of the Contract.

2. Stereo audio headset style automatic noise canceling microphones, integral on-off-volume control and with behind the neck support style. Each with 25-feet long extension cables and outlet plug-jacks to match transmitter outlet jacks. Provide two cables for each emitter/transmitter.

3. Equipment wall mount support brackets.

4. Auxiliary audio program source 15-feet long cables with plug-in at both ends to match transmitter jacks. Provide two for each transmitter.

5. Headset style ear phones with cable and plug to match receiver jacks. Headsets shall provide magnetic induction pick-up for hearing impaired, hearing aid interface operation. Provide one headset for each receiver.

6. Rechargeable Ni-Cad (NiMH) batteries, one complete set for each unit.


7. Locking auxiliary equipment storage cases for cables, microphones and headsets. Quantity and capacity as required to store all accessories.

8. Portable floor stand, for infrared emitter/transmitter units mounting and support, with variable height adjustment and tip-resistant weighted base. Provide one floor stand for each infrared emitter/transmitter.

9. Locking, portable case for infrared emitter/transmitter. One for each emitter/trans-mitter unit.

10. Provide microphone extension cable with plug to match microphone and infrared emitter /transmitter microphone input jack, 25-feet length. One for each microphone.

PART 3 - EXECUTION

3.01 GENERAL

A. Each System General

1. Assemble, set up, and test each transmitter, receiver, and accessories units.

2. Install and fully charge all batteries prior to and after testing/set up are complete.

B. Wireless RF Units

1. Perform an onsite RF frequency survey to determine available unused RF channels, prior to selecting unit operating channels and prior to ordering the equipment.

2. Select operational RF frequency to prevent system RF interference’s with other equipment.

3. Provide - one 0.75-inch conduit with two Category–6A, ANSI/EIA/TIA-568C 4-pair, UTP cables connecting from each emitter/transmitter master outlet box location to respective room instructors microphone outlet box location. Provide matching RJ-45 Category-6A female jacks at each outlet box for each cable. Provide an audio circuit matching Balun at each outlet RJ-45 jack location, for RJ-45-to-portable cable plug-in transition and circuit impedance matching audio/transformer, into respective equip-ment. Additionally provide four portable Category-6A patch cables with RJ-45 jacks on each end of 7-foot long patch cable. Typical for each outlet location.

C. Wireless Infrared Units

1. Provide aiming and intensity adjustments of emitter/transmitter units to insure complete room coverage.

2. Provide - one 0.75-inch conduit with two Category–6A, ANSI/EIA/TIA-568C 4-pair, UTP cables connecting from each emitter/transmitter master outlet box location to respective room instructors microphone outlet box location. Provide matching RJ-45 Category-6A female jacks at each outlet box for each cable. Provide an audio circuit matching Balun at each outlet RJ-45 jack location, for RJ-45-to-portable cable plug-in transition and circuit impedance matching audio/transformer, into respective equip-ment. Additionally provide four portable Category-6A patch cables with RJ-45 jacks on each end of 7-foot long patch cable. Typical for each outlet location.

3. Provide - one 0.75-inch conduit with two Category–6A, ANSI/EIA/TIA – 568C, 4-pair UTP cables connecting from each emitter/transmitter master outlet box location to respective room audio amplifier/preamplifier location. Provide matching RJ-45 Category-


6A female jacks at each outlet box location for each UTP cable. Provide an audio circuit matching Balun at each outlet RJ-45 jack location, for RJ-45-to-portable cable plug-in transition and circuit impedance matching audio/transformer, into respective equipment. Additionally provide four portable Category-6A patch cables with RJ-45 jacks on each end of 7-foot long patch cable. Typical for each outlet location.

END OF SECTION 27 51 26

020420/212250