california mechanical code 2010 chapter 1 & 2 lanes points

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California Mechanical Code

2010Chapter 1 & 2

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Preface

• By adoption, the 2010 California Mechanical Code is 2009 Uniform Mechanical Code with additional amendments

• The California legislature delegated authority to various State agencies, boards, commissions, and departments to create building regulations to implement the State’s statutes.

• A city, county or city and county may establish more restrictive building standards reasonably necessary because of local climatic, geological or topographical conditions

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TABLE OF CONTENTS

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Chapter 1

Division 1Administration

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Table of Contents

• 17 CHAPTERS– Each chapter is a different subject related to the Mechanical Code

• DIVISION– Divisions are related subject matter in a chapter

• PARTS– Chapters are broken down in to “PART” with sub-headings.

• TABLES– Tables provide an easy method to determine sizing or facts based on

conditions• APPENDICES

– The appendices are intended to supplement the provisions of the installation requirements

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Table of Contents

• Chapter 1 - Administration• Chapter 2 – Definitions• Chapter 3 – General Requirements• Chapter 4 – Ventilation and Supply• Chapter 5 – Exhaust Systems• Chapter 6 – Duct Systems• Chapter 7 – Combustion Air

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Table of Contents

• Chapter 8 – Chimney and Vents• Chapter 9 – Installation of Specific Appliances• Chapter 10 – Steam and Hot Water Boilers• Chapter 11 – Refrigeration• Chapter 12 – Hydronics• Chapter 13 – Fuel Gas Piping• Chapter 14 – Process Piping

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Table of Contents

• Chapter 15 – Solar Systems• Chapter 16 – Stationary Power Plants• Chapter 17 – Standards• Appendices• Index• History Note

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CHAPTER 1 Division I

• Administration– Those regulations dealing with

• Changes in the code• Department descriptions and purpose• Alternate methods and materials• Enforcement• Permits and Fees• Existing installations• Inspections• General operation• Temporary operation

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• 1.1.3 – Scope– The provisions of this code shall apply to the

construction, alteration, movement, enlargement, replace ment repair, equipment, use and occupancy, location, main tenance, removal, and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California

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• 1.1.8 City, County, or City and County Amendments, Additions or Deletions– The provisions of this code do not limit the authority of city,

county or city and county governments to establish more restrictive and reasonable necessary differences to the provisions contained in this code pursuant to complying with Section 1.1.8.1. The effective date of amendments, additions, or deletions to this code by a city, county or city and county filed pursuant to Section 1.1.8.1 shall be the date filed. However, in no case shall the amendments, additions or deletions to this code be effective any sooner than the effective date of this code.

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• 1.1.8 City, County, or City and County Amendments, Additions or Deletions– Local modifications shall comply with Health and

Safety Code Section 1984.1 for Building Standards Law, Health and Safety Code Section 17958 for State Housing Law or Health and Safety Code Section 13869.7 for Fire Protection Districts.

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• 1.2.2 Alternative Materials, Design, and Methods Of Construction And Equipment.– The provisions of this code are not intended to prevent the

installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material, design, or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety.

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• 1.8.3 Local Enforcing Agency.• 1.8.3.1 Duties and Powers. The building department of

every city, county, or city and county shall enforce all the provisions of law, this code, and the other rules and regulations promulgated by the Department of Housing and Community Development pertaining to the installation, erection, construction, reconstruction, movement, enlargement, conversion, alter ation, repair, removal, demolition, or arrangement of apartment houses, motels, lodging houses, and dwellings, including accessory buildings, facilities and uses thereto.

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• 1.8.4 Permits, Fees, Applications, and Inspections.– 1.8.4.1 Permits. A written construction permit shall be

obtained from the enforcing agency prior to the erection, construction, reconstruction, installation, relocation, or alteration of any mechanical system.• Exceptions:

– Work exempt from permits as specified in Chapter 1, Administration, Division II, Sections 112.2 through 112.2.5 of this code.

– Changes, alterations, or repairs of a minor nature not affecting structural features, egress, sanitation, safety, or accessibility as determined by the enforcing agency.

– Exemptions from permit requirements shall not be deemed to grant authorization for any work to be done in any manner in violation of other provisions of law or this code.

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• 1.8.4.4 Inspections. – Construction or work for which a permit is

required shall be subject to inspection by the building official and such construction or work shall remain accessible and exposed for inspection purposes until approved. Approval as a result of an inspection shall not be construed to be an approval of a violation of the provisions of this code or other regulations of the Department of Housing and Community Development.

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• 1.8.5 Right of Entry for Enforcement• 1.8.5.1 – General Subject to other provisions of law,

officers, and agents of the enforcing agency may enter and inspect public and private properties to secure compliance with the rules and regulations promulgated by the Department of Housing and Community Development. For limitations and additional information regarding enforcement, see CMC text.

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• 1.8.7.2 Local Building Departments. – The building department of any city, county, or

city and county may approve alternates for use in the erection, construction, reconstruction, movement, enlargement, conversion, alteration, repair; removal, demolition, or arrangement of an apartment house, hotel, motel, lodging house, dwelling, or an accessory structure, except for the following:

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Chapter 1Division I

Special Occupancy

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– Structures located in mobilehome parks as defined in California Health and Safety Code Section 18214.

– Structures located in special occupancy parks as defined in California Health and Safety Code Section 18862.43.

– Factory-built housing as defined in California Health and Safety Code Section 19971.

These inspections are performed by HUD [Housing Urban Development Department] State Controlled

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• 1.8.9 Unsafe Buildings or Structures.• 1.8.9.1 Authority to Enforce. – Subject to other provisions of law, the administration,

enforcement, actions, proceedings, abatement, violations, and penalties for unsafe buildings and structures are contained in the following statures and regulations:• See text for a listing of agencies pertaining to:

– Mobilehome Parks– Special Occupancy Parks– Employee Housing [farming]– Factory built housing [pre-fab]

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• 1.9.0 Division of State Architect– 1.9.2.1 DSA-SS Division of the State Architect –

Structural Safety;• Community Colleges

– College owned buildings

• Public Elementary Schools• Secondary Schools• State-owned or sate leased essential services buildings

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• 1.10.0 Office of Statewide Health Planning and Development.– OSHPD1 = General acute hospitals and acute psychiatric

hospitals, excluding distinct part units or distinct part freestanding buildings providing skilled nursing or intermediate-care services.

– OSHPD2 = Skilled nursing facilities– OSHPD3 = Licensed clinics and any freestanding building under a

hospital license where outpatient clinical services are provided– OSHPD4 = Correctional Treatment Centers

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• 1.11.0 Office of the State Fire Marshal– 1.11.1 SFM – Office of the State Fire Marshal

• Specific scope of application of the agency responsible for enforcement, the enforcement agency and the specific authority to adopt and enforce such provisions of this code unless otherwise stated.

– Institutional– Educational or similar occupancy– Place of Assemblage [theater, dancehall, auditorium,

nightclub, where 50 or more persons may gather in a building room or structure for the purpose of amusement, entertainment, instruction, deliberation, worship, drinking or dining, awaiting transportation, or education.

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• 1.11.1 SFM – Office of the State Fire Marshal– Small Family Day Care Homes– Large Family Day Care Homes– Residential Facilities for the Elderly– Any State Institution, other state owned or state occupied

building– High Rise Structures– Motion Picture Production Studios– Organized Camps– Residential –

» All hotels, motels, lodging houses, apartment houses, and dwellings, including congregate residences and buildings.

» Multiple – story structures existing after January 1975

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• 1.11.1 SFM – Office of the State Fire Marshal– Tents, awnings, or other Fabric Enclosures used in connection

with any occupancy.– Fire alarm devices, equipment, and systems in connection

with any occupancy.– Hazardous materials– Public School automatic fire detection, alarm and sprinkler

systems

• Wildland – Urban Interface Fire Area

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Chapter 1

Division IIPart I

General

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Chapter 1Division II

• Existing Installations• Powers & Duties• Stop Orders– Equipment disconnection– Condemn equipment

• Liability of building official• Exemptions• Permits & Time Limits• Inspections

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• 103.0 Scope.– 103.1 General. • The provisions of this code shall apply to the addition to

or erection, installation, alteration, repair, relocation, replacement, use, or maintenance of any heating, ventilating, cooling, refrigeration systems; incinerators; or other miscellaneous heat-producing appliances within this jurisdiction. Additions, alterations, repairs to, and replacement of equipment or systems shall comply with the provisions for new equipment and systems, except as otherwise provided in Section 104.0 of this code.

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• 103.2 Conflicts. – Where, in any specific case, different sections of

this code or referenced standards specify different materials, methods of construction, or other requirements, the most restrictive shall govern as determined by the Authority Having Jurisdiction. When there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable. [OSHPD 1, 2, 3 & 4] See Chapter 1, Division I, Section 1.1.7.

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• 103.3 Design and Testing. – The design and testing of equipment regulated by this

code shall be subject to the approval of the Authority Having Jurisdiction.

• 103.4 Appendices. – The standards contained in Appendix A shall be

considered as part of this code. Appendices B and C contain recommended practices that shall not apply unless specifically adopted. Appendix D contains conversion tables and a table for determining the approximate minimum thickness for carbon sheet steel.

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• 104.0 Application to Existing Mechanical Systems.– 104.1 Additions, Alterations, or Repairs. Additions, alterations, or

repairs shall be permitted to be made to any mechanical system without requiring the existing mechanical system to comply with all the requirements of this code, provided the addition, alteration, or repair conforms to that required for a new mechanical system. Additions, alterations, or repairs shall not cause an existing system to become unsafe or create unhealthy or overloaded conditions.

Minor additions, alterations, and repairs to existing mechanical systems shall be permitted to be installed in accordance with the law in effect at the time the original installation was made, when approved by the Authority Having Jurisdiction.

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• 104.2 Existing Installations. – Mechanical systems lawfully in existence at the

time of the adoption of this code shall be permitted to have their use, maintenance, or repair continued if the use, maintenance, or repair is in accordance with the original design and location and no hazard to life, health, or property has been created by such mechanical system

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• 104.4 Maintenance. – Mechanical systems, materials, and appurtenances, both

existing and new, and parts thereof shall be maintained in proper operating condition in accordance with the original design and in a safe and hazard-free condition. Devices or safeguards that are required by this code shall be maintained in conformance with the code edition under which installed. The owner or the owner’s designated agent shall be responsible for maintenance of mechanical systems and equipment. To determine compliance with this subsection, the Authority Having Jurisdiction shall be permitted to cause a mechanical system or equipment to be re-inspected.

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Chapter 1

Division IIPart II

Enforcement

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• 108.0 Powers and Duties of the Authority Having Jurisdiction– 108.1 General. The Authority Having Jurisdiction is hereby

authorized and directed to enforce the provisions of this code. For such purposes, the Authority Having Jurisdiction shall have the powers of a law enforcement officer.• The Authority Having Jurisdiction shall have the power to render

interpretations of this code and to adopt and enforce rules and regulations supplemental to this code as may be deemed necessary in order to clarify the application of the provisions of this code. Such interpretations, rules, and regulations shall be in accordance with the intent and purpose of this code.

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– 108.2 Deputies • In accordance with the prescribed procedures

and with the approval of the appointing authority, the Authority Having Jurisdiction shall be permitted to appoint such number of technical officers and inspectors and other employees as shall be authorized from time to time. The Authority Having Jurisdiction shall be permitted to deputize such inspectors or employees as may be necessary to carry out the functions of the code enforcement agency.

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Special Inspector

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– 108.4 Stop Orders • When any work is being done contrary to the

provisions of this code; the Authority Having Jurisdiction shall have the authority to order the work stopped by notice in writing served on any persons engaged in doing or causing such work to be done, and such persons shall forth-with stop work until authorized by the Authority Having Jurisdiction to proceed with the work.

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• 108.6 Authority to Condemn Equipment. – When the Authority Having Jurisdiction ascertains that any equipment, or

portion thereof, regulated by this code has become hazardous to life, health, or property, it shall order in writing that the equipment either be removed or restored to a safe or sanitary condition, as appropriate. The written notice shall contain a fixed time limit for compliance with such order. Persons shall not use or maintain defective equipment after receiving a notice.

– When equipment or an installation is to be disconnected, written notice of the disconnection and causes therefore shall be given within twenty-four (24) hours to the serving utility, owner, and occupant of the building, structure, or premises. When any equipment is maintained in violation of this code, and in violation of a notice issued pursuant to the provisions of this section, the Authority Having Jurisdiction shall institute an appropriate action to prevent, restrain, correct, or abate the violation.

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– 108.8 Liability • The Authority Having Jurisdiction charged with the enforcement of

this code acting in good faith and without malice in the discharge of the duties required by this code or other pertinent law or ordinance shall not thereby be rendered personally liable for damages that may accrue to persons or property as a result of an act or by reason of an act or omission in the discharge of such duties. A suit brought against the Authority Having Jurisdiction or employee because of such act or omission performed by the Authority Having Jurisdiction or employee in the enforcement of any provision of such codes or other pertinent laws or ordinances implemented through the enforcement of this code or enforced by the code enforcement agency shall be defended by this jurisdiction until final termination of such proceedings, and any judgment resulting there from shall be assumed by this jurisdiction.

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– 108.8 Liability [cont.’d]• This code shall not be construed to relieve from or

lessen the responsibility of any person owning, operating, or controlling any equipment regulated herein for damages to persons or property caused by defects, nor shall the code enforcement agency or its parent jurisdiction be held as assuming any such liability by reason of the inspections authorized by this code or any permits or certificates issued under this code.

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– 111.0 Violations.• It shall be unlawful for a person, firm, or corporation to

erect, construct, enlarge, alter, repair, move, improve, remove, convert or demolish, equip, use, or maintain mechanical systems or equipment or cause or permit the same to be done in violation of this code.

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Chapter 1

Division IIPart III

Permits and Inspections

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• 112.0 Permits.– 112.1 Permits Required • Except as permitted in Section 112.2, no mechanical

system regulated by this code shall be installed, altered, repaired, replaced, or remodeled unless a separate mechanical permit for each separate building or structure has first been obtained.

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• 112.2 Exempt Work – A mechanical permit shall not be required for the following:

• 112.2.1 A portable heating appliance, portable ventilating equipment, a portable cooling unit, or a portable evaporative cooler.

• 112.2.2 A closed system of steam, hot, or chilled water piping within heating or cooling equipment regulated by this code.

• 112.2.3 Replacement of any component part or assembly of an appliance that does not alter its original approval and complies with other applicable requirements of this code.

• 112.2.4 Refrigerating equipment that is part of the equipment for which a permit has been issued pursuant to the requirements of this code.

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• 113.0 Application for Permit– 113.1 Application. To obtain a permit, the applicant

shall first file an application in writing on a form furnished by the code enforcement agency for that purpose. Every such application shall:• Describe work covered by permit• Describe land on which work is performed• Indicate use or occupancy• Have plans• Be signed by applicant• Other data as may be required

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• 114.4 Expiration– Every permit issued under the provisions of this code shall expire by

limitation and become null and void if the work authorized by such permit is not commenced within one-hundred and eighty (180) days from the date of such permit, or if the work authorized by such permit is suspended or abandoned at any time after the work is commenced for a period of one-hundred and eighty (180) days. Before such work can be recommenced, a new permit shall be first obtained, and the fee therefore shall be one-half (1/2) the amount required for a new permit for such work, provided no changes have been made or will be made in the original plans and specifications for such work and provided further that such suspension or abandonment has not exceeded one (1) year. No permit shall be extended more than once. To renew action on a permit after expiration, the permittee shall pay a new full permit fee.

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– 114.4 Expiration [cont’d]• A permittee holding an unexpired permit shall be

permitted to apply for an extension of the time within which work may be commenced under that permit when the permittee is unable to commence work within the time required by this section for good and satisfactory reasons. The Authority Having Jurisdiction shall have the authority to extend the time for action by the permittee for a period not exceeding one-hundred and eighty (180) days upon written request by the permittee showing that circumstances beyond the control of said permittee have prevented action from being taken.

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– 116.0 Inspections• 116.1 Mechanical systems for which a permit is required by this

code shall be subject to inspection and such mechanical systems shall remain accessible and exposed for inspection purposes until approved by the Authority Having Jurisdiction. It shall be the duty of the permit applicant to cause the mechanical systems to remain accessible and exposed for inspection purposes. The Authority Having Jurisdiction shall not be liable for expense entailed in the removal or replacement of any material required to permit inspection. When the installation of a mechanical system is complete, an additional and final inspection shall be made. Mechanical systems regulated by this code shall not be connected to the energy fuel supply lines until authorized by the Authority Having Jurisdiction.

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– 116.2 Operation of Mechanical • Equipment

– The requirements of this section shall not be considered to prohibit the operation of mechanical systems installed to replace existing equipment or fixtures serving an occupied portion of the building in the event a request for inspection of such equipment or fixture has been filed with the Authority Having Jurisdiction not exceeding forty-eight (48) hours after such replacement work is completed and before any portion of such mechanical system is concealed by any permanent portion of the building.

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Chapter 2

Definitions

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CHAPTER 2

• Legal Definitions– General definitions– Accepted meanings– Alphabetical Order– Covered by Chapter parts

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CHAPTER 2Definitions

• 201.0 = General Purpose Statement• 202.0– Except as defined in this chapter or

elsewhere in this code, the interpretation of words used in this code shall be in accordance with the meaning defined in the applicable building, electric, fire, or plumbing code and Webster’s Third New International Dictionary of the English Language Unabridged, copyright 1993.

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• 203.0– Approved• Acceptable to the Authority Having Jurisdiction

– State approvals for materials and methods– Local city approvals for materials and methods

CERTIFICATE OF AUTHENTICITYPresented To:Verification By:

Dated:

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• 205– Confined Space. A room or space having a volume

less than fifty (50) cubic feet (1.42 m3) per 1,000 Btu/h (293 W) of the aggregate input rating of all fuel-burning appliances installed in that space. (w x d x h)

Garage = 22’ w x 22’ d x 8h = 3875 cu. Ft.

80,000 btu/h furnace

80,000 / 1000 = 80 x 50 = 4,000 cu. Ft.

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• 206.0– Direct Vent Appliance. An appliance that is

constructed and installed so that all air for combustion is derived from the outside atmosphere and all flue gases are discharged to the outside atmosphere.

This is accomplished either with a single pipe that contains a second pipe within it [concentric] or there are two pipes.

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• 207.0– Floor Furnace. A completely self-contained

furnace suspended from the floor of the space being heated, taking air for combustion from outside such space and with means for observing flames and lighting the appliance from such space

Understand this definition to mean that you MUST be able to control the gas and observe the flames on the burner from above the floor.

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• 207.0– Forced-Air-Type Central Furnace. A central furnace

equipped with a fan or blower that provides the primary means for circulation of air.

• 209.0– Gravity-Type Warm-Air Furnace. A warm-air furnace

depending primarily on circulation of air through the furnace by gravity. This definition also shall include any furnace approved with a booster-type fan that does not materially restrict free circulation of air through the furnace when the fan is not in operation

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• 216.0– Noncombustible. As applied to building construction material, means

a material that in the form in which it is used is either one of the following:• A material that, in the form in which it is used and under the conditions

anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a vertical Tube Furnace at 750°, are considered noncombustible material. [NFPA 220:3.3.4]

• Material having a structural base of noncombustible material as defined in 1 above, with a surfacing material not over one-eighth ('/8) inch (3.2 mm) thick that has a flame-spread index not higher than fifty (50).

• Noncombustible does not apply to surface finish materials. Material required to be noncombustible for reduced clearances to flues, heating appliances, or other sources of high temperature

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• Cont. ‘d– shall refer to material conforming to 1 above. No materials

shall be classed as noncombustible that is subject to increase in combustibility or flame – spread index beyond the limits herein established, through the effects of age, moisture, or other atmospheric condition.

In the past, covering a wooden post or structure with sheet metal to change it’s classification worked. Today, because the sheet metal would be considered “surface finish material” it would NOT conform unless the specific spacing is met. See table 3-2 and 3-3

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• 223.0– Unusually Tight Construction is construction where:

• Walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one (1) perm or less with any openings gasketed or sealed;

• Weatherstripping is on openable windows and doors; and• Caulking or sealants are applied to areas such as joints

around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, and at penetrations for plumbing, electrical, and gas lines and at other openings.

california mechanical code 2010 chapter 1 & 2 lanes points

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