Other Specific Appliances (Incinerators, Heaters, Refrigeration, Specialty)

Grounded in the retrieved California Mechanical Code — click a citation to read the verbatim passage:

• CMC § 919.0 High relevance — show source text

  919.0 Household Cooking Appliances. . . 209

  919.1 Application . . . . . . . . . . . . . . . . . . 209

  919.2 Electric Household Cooking Appliances . . . . . . . . . . . . . . . . . . 209

  919.3 Gas-Fired Household Cooking Appliances . . . . . . . . . . . . . . . . . . 209

  919.4 Floor-Mounted Units . . . . . . . . . . . 210

  919.5 Built-In Units . . . . . . . . . . . . . . . . . 210

  919.6 Level Installation. . . . . . . . . . . . . . 210

  920.0 Cooking Appliance Listings . . . . . 210

  920.1 Commercial Electric Ranges . . . . 210

  920.2 Commercial Wood-Fired

  Baking Ovens . . . . . . . . . . . . . . . . 210

  920.3 Oil-Burning Ranges . . . . . . . . . . . 210

  921.0 Open-Top Broiler Units. . . . . . . . . 210

  921.1 Application . . . . . . . . . . . . . . . . . . 210

  921.2 Protection Above Domestic Units. . 210

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  TABLE OF CONTENTS

  921.3 Commercial Units . . . . . . . . . . . . . 210

  922.0 Outdoor Cooking Appliances . . . . 210

  922.1 Application . . . . . . . . . . . . . . . . . . 210

  923.0 Illuminating Appliances. . . . . . . . . 211

  923.1 Clearances for Listed Appliances. . 211

  923.2 Clearances for Unlisted

  Appliances . . . . . . . . . . . . . . . . . . 211

  Table 923.2.1 Clearances for Unlisted Outdoor

  Open-Flame Illuminating Appliances . . . . . . . . . . . . . . . . . . 211

  923.3 Mounting on Buildings . . . . . . . . . 211

  923.4 Mounting on Posts . . . . . . . . . . . . 211

  923.5 Appliance Pressure Regulators . . . 211

  924.0 Incinerators and Crematories . . . . 211

  924.1 Field Constructed Commercial Industrial Incinerators . . . . . . . . . . 211

  924.2 Factory-Built Commercial Crematories . . . . . . . . . . . . . . . . . 211

  924.3 Residential Incinerators . . . . . . . . 211

  925.0 Infrared Heaters . . . . . . . . . . . . . . 211

  925.1 Application . . . . . . . . . . . . . . . . . . 211

  925.2 Support . . . . . . . . . . . . . . . . . . . . . 211

  925.3 Clearance . . . . . . . . . . . . . . . . . . . 211

  925.4 Combustion and Ventilation Air . . . 212

  925.5 Installation in Commercial

• CMC § 923.0 High relevance — show source text

  923.0 Illuminating Appliances. . . . . . . . . 211

  923.1 Clearances for Listed Appliances. . 211

  923.2 Clearances for Unlisted

  Appliances . . . . . . . . . . . . . . . . . . 211

  Table 923.2.1 Clearances for Unlisted Outdoor

  Open-Flame Illuminating Appliances . . . . . . . . . . . . . . . . . . 211

  923.3 Mounting on Buildings . . . . . . . . . 211

  923.4 Mounting on Posts . . . . . . . . . . . . 211

  923.5 Appliance Pressure Regulators . . . 211

  924.0 Incinerators and Crematories . . . . 211

  924.1 Field Constructed Commercial Industrial Incinerators . . . . . . . . . . 211

  924.2 Factory-Built Commercial Crematories . . . . . . . . . . . . . . . . . 211

  924.3 Residential Incinerators . . . . . . . . 211

  925.0 Infrared Heaters . . . . . . . . . . . . . . 211

  925.1 Application . . . . . . . . . . . . . . . . . . 211

  925.2 Support . . . . . . . . . . . . . . . . . . . . . 211

  925.3 Clearance . . . . . . . . . . . . . . . . . . . 211

  925.4 Combustion and Ventilation Air . . . 212

  925.5 Installation in Commercial

  Garages and Aircraft Hangars . . . 212

  925.6 Electric Radiant Heaters. . . . . . . . 212

  926.0 Pool Heaters. . . . . . . . . . . . . . . . . 212

  926.1 Application . . . . . . . . . . . . . . . . . . 212

  926.2 Location . . . . . . . . . . . . . . . . . . . . 212

  926.3 Clearance . . . . . . . . . . . . . . . . . . . 212

  926.4 Temperature or PressureLimiting Devices . . . . . . . . . . . . . . 212

  926.5 Bypass Valves . . . . . . . . . . . . . . . 212

  926.6 Venting . . . . . . . . . . . . . . . . . . . . . 212

  927.0 Refrigerators. . . . . . . . . . . . . . . . . 212

  927.1 Application . . . . . . . . . . . . . . . . . . 212

  927.2 Clearance . . . . . . . . . . . . . . . . . . . 212

  927.3 Venting or Ventilating Kits Approved for Use with a Refrigerator. . . . . . . . . . . . . . . . . . 212

  928.0 Gas-Fired Toilets . . . . . . . . . . . . . 212

  928.1 Clearance . . . . . . . . . . . . . . . . . . . 212

  928.2 Installation on Combustible

• CMC § 923.5 Medium relevance — show source text

  923.5 Appliance Pressure Regulators. Where an appliance pressure regulator is not supplied with an illuminating appliance and the service line is not equipped with a service pressure regulator, an appliance pressure regulator shall be installed in the line serving one or more illuminating appliances. [NFPA 54:10.14.5]

  924.0 Incinerators and Crematories.

  924.1 Field Constructed Commercial-Industrial

  Incinerators. Field constructed commercial-industrial incin erators shall be constructed and installed in accordance with

  NFPA 82.

  924.2 Factory-Built Commercial Crematories. Factorybuilt commercial incinerators and crematories shall comply with UL 2790 and installed in accordance with the manufac turer’s installation instructions.

  924.3 Residential Incinerators. Residential incinerators shall comply with UL 791 and installed in accordance with the manufacturer’s installation instructions.

  925.0 Infrared Heaters.

  925.1 Application. Infrared heaters having an input rating of 400 000 Btu/hr (117 kW) or less shall be listed in accordance with ANSI Z83.19/CSA 2.35 or ANSI Z83.20/CSA 2.34. [NFPA 54:10.16.1]

  925.2 Support. Suspended-type infrared heaters shall be fixed in position independent of gas and electric supply lines. Hangers and brackets shall be of noncombustible material. Heaters subject to vibration shall be provided with vibrationisolating hangers. [NFPA 54:10.16.2]

  925.3 Clearance. The installation of infrared heaters shall comply with the following clearance requirements:

  (1) Listed heaters shall be installed with clearances from combustible material in accordance with their listing and the manufacturer’s installation instructions.

  (2) Unlisted heaters shall be installed in accordance with clearances from combustible material acceptable to the Authority Having Jurisdiction.

  (3) In locations used for the storage of combustible materials, signs shall be posted to specify the maximum per

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  FLAME HEIGHT ABOVE BURNER HEAD (inches)	MINIMUM CLEARANCE FROM COMBUSTIBLE MATERIAL (feet)*	Col3
  FLAME HEIGHT ABOVE BURNER HEAD (inches)	HORIZONTAL	VERTICAL
  12	2	6
  18	3	8
  24	3	10
  30	4	12

  For SI units: 1 inch = 25.4 mm, 1 foot = 304.8 mm

  • Measured from the nearest portion of the burner head.

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  INSTALLATION OF SPECIFIC APPLIANCES

  927.2 Clearance. Refrigerators shall be provided with clearances for ventilation at the top and back in accordance with the manufacturer’s instructions. Where such instructions are

• CMC § 904.0 Medium relevance — show source text

  • See Section 904.0 for additional requirements for central heating boilers and furnaces.

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  INSTALLATION OF SPECIFIC APPLIANCES

  also be handled by a duct(s) sealed to the furnace casing and terminating outside the space containing the furnace. The duct furnace shall be installed on the positive-pressure side of the circulating air blower. [NFPA 54:10.9.6]

  905.7 Duct Furnaces Used with Refrigeration Sys- tems. A duct furnace shall not be installed in conjunction with a refrigeration coil where circulation of cooled air is provided by the blower.

  Exception: Where the blower has sufficient capacity to overcome the external static resistance imposed by the duct system, the furnace, and the cooling coil and the air throughput necessary for heating or cooling, whichever is greater. [NFPA 54:10.9.7.1]

  905.7.1 In Conjunction with Cooling Appliances. Duct furnaces used in conjunction with cooling appliances shall be installed in parallel with or on the upstream side of cooling coils to avoid condensation within heating elements. With a parallel flow arrangement, the dampers or other means used to control the flow of air shall be sufficiently tight to prevent any circulation of cooled air through the unit.

  Exception: Where the duct furnace has been specifically listed for downstream installation. [NFPA 54:10.9.7.2]

  905.7.2 Heat Exchangers. Where a duct furnace is installed downstream of an evaporative cooler or air washer, the heat exchanger shall be constructed of corrosion-resistant materials. Air washers operating with chilled water that deliver air below the dew point of the ambient air at the duct furnace shall be considered as refrigeration systems. [NFPA 54:10.9.7.3]

  905.8 Installation in Commercial Garages and Aircraft Hangars. Duct furnaces installed in garages for more than three motor vehicles or in aircraft hangars shall be installed in accordance with Section 303.11 and Section 303.12. [NFPA 54:10.9.8]

  905.9 Electric Duct Heaters. Electric duct heaters installed

  within an air duct shall be listed and labeled in accordance with UL 1996 and designed for the maximum air temperature. The duct heater and fan shall be interlocked such that the electric duct heater operates when the fan is operating.

  905.9.1 Installation. Duct heaters shall be installed in

  accordance with the manufacturer’s installation instructions, and shall not create a hazard to persons or property. Where installed 4 feet (1219 mm) or less from a heat pump or air conditioner, the duct heater shall be listed for such installation.

  905.9.2 Clearance. A working space clearance shall be maintained to permit replacement of controls and heating elements and for adjusting and cleaning of controls. The working space for energized equipment shall comply with the California Electrical Code .

  906.0 Floor Furnaces.

  906.1 Application. Floor furnaces shall be listed in accordance with ANSI Z21.86/CSA 2.32. [NFPA 54:10.10.1]

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• CMC § 605.5.1 Medium relevance — show source text

  (a) Appliances employing open flame radiated heat shall have fixed and substantially constructed metallic guards located not less than 10 inches from the radiating flame and the guard members shall be spaced not more than 2 inches apart.

  (b) Cabinet type appliances that are not provided with an inner combustion chamber and an air circulating space between the combustion chamber and the outer shell, shall have fixed and substantially constructed metallic guards located not less than 3 inches from the shell and spaced not more than 2 inches apart.

  605.5.1 Guard against contact. The heating element or combustion chamber shall be permanently guarded so as to prevent accidental contact by persons or material.

  605.5.2 Heating appliance installation and maintenance. Heating appliances shall be installed and maintained in accordance with the manufacturer’s instructions, the California Building Code, the International Fuel Gas Code, the California Mechanical Code and the California Electrical Code.

  605.6 Unauthorized operation. It shall be a violation of this code for any person, user, firm or agent to continue the utilization of any device or appliance (the operation of which has been discontinued or ordered discontinued in accordance with Section 605.2) unless written authority to resume operation is given by the fire code official. Removing or breaking the means by which operation of the device is prevented shall be a violation of this code.

  605.7 Incinerators. Commercial, industrial and residential-type incinerators and chimneys shall be constructed in accordance with California Building Code and the California Mechanical Code. Unless other approved means are provided for the prompt disposal of rubbish, an approved incinerator shall be provided and maintained for the disposal of combustible waste. Incinerators shall be constructed, located and maintained in such manner that waste material can be safely burned at any hour of the day, where local ordi- nances permit. Fuel-fired and garbage burning incinerators shall be constructed and maintained in conformance with NFPA 82-2019 Incinerators, Waste and Linen Handling Systems and Equipment or UL 791-2006 Standard for Residential Incinerators, whichever is applicable.

  605.7.1 Residential incinerators. Residential incinerators shall be listed and labeled in accordance with UL 791.

  605.7.2 Spark arrestor. Incinerators shall be equipped with an effective means for arresting sparks.

  605.7.3 Restrictions. Where the fire code official determines that burning in incinerators located within 500 feet (152 m) of mountainous, brush or grass-covered areas will create an undue fire hazard because of atmospheric conditions, such burning shall be prohibited.

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  605.7.4 Time of burning. Burning shall take place only during approved hours.

  605.7.5 Discontinuance. The fire code official is authorized to require incinerator use to be discontinued immediately if the fire code official determines that smoke emissions are offensive to occupants of surrounding property or if the use of incinerators is determined by the fire code official to constitute a hazardous condition.

  605.7.6 Flue-fed incinerators in Group I-2. In Group I-2 occupancies, the continued use of existing flue-fed incinerators is prohibited.

• CMC § 101.1 Medium relevance — show source text

  PART 1—SCOPE AND APPLICATION

  SECTION 101—SCOPE AND GENERAL REQUIREMENTS

  [A] 101.1 Title. These regulations shall be known as the Building Code of [ NAME OF JURISDICTION ], hereinafter referred to as “this code.”

  [A] 101.2 Scope. The provisions of this code shall apply to the construction, alteration, relocation, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures.

  Exception: Detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress, and their accessory structures not more than three stories above grade plane in height, shall comply with this code or the California Residential Code .

  [A] 101.2.1 Appendices. Provisions in the appendices shall not apply unless specifically adopted.

  [A] 101.3 Purpose. The purpose of this code is to establish the minimum requirements to provide a reasonable level of safety, health and general welfare through structural strength, means of egress, stability, sanitation, light and ventilation, energy conservation, and for providing a reasonable level of life safety and property protection from the hazards of fire, explosion or dangerous conditions, and to provide a reasonable level of safety to firefighters and emergency responders during emergency operations.

  [A] 101.4 Referenced codes. The other codes specified in Sections 101.4.1 through 101.4.7 and referenced elsewhere in this code shall be considered to be part of the requirements of this code to the prescribed extent of each such reference.

  [A] 101.4.1 Gas. The provisions of the California Plumbing Code and/or the California Mechanical Code shall apply to the installation of gas piping from the point of delivery, gas appliances and related accessories as covered in this code. These requirements apply to gas piping systems extending from the point of delivery to the inlet connections of appliances and the installation and operation of residential and commercial gas appliances and related accessories.

  [A] 101.4.2 Mechanical. The provisions of the California Mechanical Code shall apply to the installation, alterations, repairs and replacement of mechanical systems, including equipment, appliances, fixtures, fittings and appurtenances, including ventilating, heating, cooling, air-conditioning and refrigeration systems, incinerators and other energy-related systems.

  [A] 101.4.3 Plumbing. The provisions of the California Plumbing Code shall apply to the installation, alteration, repair and replacement of plumbing systems, including equipment, appliances, fixtures, fittings and appurtenances, and where connected to a water or sewage system and all aspects of a medical gas system. The provisions of the California Plumbing Code shall apply to private sewage disposal systems.

  [A] 101.4.4 Property maintenance. The provisions of the California Existing Building Code shall apply to existing structures and premises; equipment and facilities; light, ventilation, space heating, sanitation, life and fire safety hazards; responsibilities of owners, operators and occupants; and occupancy of existing premises and structures.

• CMC § 933.2 Medium relevance — show source text

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  INSTALLATION OF SPECIFIC APPLIANCES

  933.2 Unit Coolers. Factory-built unit coolers for use in refrigerators, freezers, refrigerated warehouses, and walk-in coolers shall comply with UL 412 or UL 60335-2-89 and shall be installed in accordance with the manufacturer’s

  installation instructions.

  933.3 Self-Contained Mechanical Refrigeration Sys- tems. Self-contained mechanical refrigeration systems for use in walk-in coolers shall comply with UL 427 or UL 60335-2-89 and shall be installed in accordance with the man ufacturer’s installation instructions.

  934.0 Ductless Mini-Split Systems Installation.

  934.1 General. A ductless mini-split system installation shall be installed in accordance with the manufacturer’s

  installation instructions and Section 310.2 for condensate

  control.

  935.0 Air Filter Appliances.

  935.1 Electrostatic Air Cleaners. Electrostatic air cleaners shall comply with UL 867 and installed in accordance with the manufacturer’s installation instructions.

  935.2 High-Efficiency Particulate Air Filter Units. High-efficiency particulate air filter units for use in industrial and laboratory exhaust and ventilation systems shall be installed in accordance with the manufacturer’s installation

  instructions.

  936.0 Gaseous Hydrogen Systems.

  936.1 General. Gaseous hydrogen systems shall be installed in accordance with NFPA 2.

  937.0 Compressed Natural Gas (CNG) Vehicular Fuel Systems.

  937.1 General. The installation of compressed natural gas (CNG) fueling (dispensing) systems shall be in accordance with NFPA 52. Residential CNG fueling appliances shall be listed in accordance with ANSI/CSA NGV 5.1 and installed in accordance to the appliance manufacturer’s installation instructions. Non-residential CNG fueling appliances shall be listed in accordance with ANSI/CSA NGV 5.2 and installed in accordance with the appliance manufacturer’s installation instructions. [NFPA 54:10.27]

  938.0 Dehumidifiers.

  938.1 General. Dehumidifiers shall comply with UL 603352-40, and be installed in accordance with the manufacturer’s installation instructions.

  939.0 Sauna Heaters.

  939.1 Electric Sauna Heaters. Sauna heaters shall comply with UL 875 and shall be installed in accordance with the manufacturer’s installation instructions.

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  CALIFORNIA MECHANICAL CODE – MATRIX ADOPTION TABLE

  CHAPTER 10 – BOILERS AND PRESSURE VESSELS

  (Matrix Adoption Tables are non-regulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

• CMC § 2025 Medium relevance — show source text

  Chapter 7 Combustion Air. Chapter 7 regulates combustion air requirements for ventilation and dilution of flue gases for appliances installed in buildings. Fuel-gas appliances not regulated by chapter include direct vent appliances and Type I clothes dryers. Makeup air requirements for Type I clothes dryers are located in Chapter 5. Chapter 7 provides acceptable methods for supplying satisfactory combustion air to ensure proper combustion. Combustion air can be supplied by using indoor combustion air or by introducing the air from the outdoors.

  Combustion is the rapid oxidation of fuel to release energy. The oxygen required to release the energy from the fuel normally comes from the air. Incomplete combustion of fuel occurs when inadequate oxygen is provided to the appliance. Combustion is needed to provide ventilation cooling for the casing and internal controls. When a lack of oxygen occurs, some of the carbon is not oxidized, and carbon monoxide forms.

  Chapter 8 Chimneys and Vents. Chapter 8 regulates the installation, design, and construction of venting systems for fuel-burning appliances. The provisions addressed within this chapter follow procedures an installer would use to design or evaluate a venting system. Many requirements apply to the design and construction of venting systems, chimneys, installation of gas vents, and the sizing of venting system for a Category I appliance. Sizing venting systems require rigorous engineering calculations. However, the venting sizing requirements and sizing tables in this chapter already perform the calculations for the benefit of the end user.

  Combustion appliances produce products of incomplete combustion, including potentially harmful carbon monoxide (CO). It is desirable to vent these products to the outdoors. Although the gas is clean-burning fuel, the products of combustion must not be allowed to collect within a building.

  Chapter 9 Installation of Specific Appliances. Chapter 9 regulates the minimum requirements for the design, construction and installation of specific appliances. The provisions address the minimum requirements for gas-fired appliances, oil-fired appliances, wood-fired appliances, and electric-type appliances. In addition to the requirements of this chapter, appliances are also required to comply with the general requirements of Chapter 3.

  Chapter 10 Boilers and Pressure Vessels. Chapter 10 regulates the construction, installation, operation, repair, and alteration of boilers and pressure vessels. The safety provisions within this chapter address controls and limit devices for automatic boilers, methods of determining expansion tank capacities, discharge piping, relief valves, shutoff valves, gas-pressure and combustion regulators, and inspections and tests. Potable water heaters are free from the requirements of Chapter 10 as they are within the scope of the Uniform Plumbing Code (UPC).

  Pressure vessels store large amounts of energy and must comply with ASME Boiler and Pressure Vessel Code (BPVC) Section VIII.1. The stored energy must be contained to prevent disastrous failures. Boilers must comply with ASME BPVC Section I, ASME BPVC Section IV, or NFPA 85. Installing a safety relief valve and expansion tank prevents pressures in the tank from exceeding the design threshold.

  Chapter 11 Refrigeration. Chapter 11 regulates the design, installation, and construction requirements of refrigeration systems and the installation and construction of cooling towers. Refrigeration is a method used for achieving heat transfer to cool spaces. Refrigerants are the most common medium used to transfer the heat energy from the low-temperature level to the high-temperature level. Table

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  FORMAT OF THE UNIFORM MECHANICAL CODE

• CMC § 101.5 Medium relevance — show source text

  101.5 Referenced codes and standards. The codes and standards referenced elsewhere in this code shall be considered part of the requirements of this code to the prescribed extent of each such reference.

  101.5.1 Building. The provisions of the California Building Code, California Residential Code and California Existing Building Code, as applicable, shall apply to the construction, alteration, movement, enlargement, replacement, repair, use and occupancy, location, maintenance, removal and demolition of every structure or any appurtenances connected or attached to such buildings or structures.

  101.5.2 Electrical. The provisions of the California Electrical Code shall apply to the installation of electrical systems, including but not limited to, alterations, repair, replacement, equipment, appliances, fixtures, fittings and appurtenances thereto.

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  ADMINISTRATION

  101.5.3 Mechanical. The provisions of the California Mechanical Code shall apply to the installation, alterations, repair and replacement of mechanical systems, including equipment, appliances, fixtures, fittings and/or appurtenances, including ventilating, heating, cooling, air-conditioning and refrigeration systems, incinerators and other energy-related systems.

  101.5.4 Plumbing. The provisions of the California Plumbing Code shall apply to the installation, alteration, repair and replacement of plumbing systems, including equipment, appliances, fixtures, fittings and appurtenances where connected to a water or sewage system.

  101.5.5 Fire prevention. The provisions of CCR, Title 19, Division 1 and CCR, Title 24, Part 2 and Part 9 relating to fire and panic safety as adopted by the Office of the State Fire Marshal shall apply to all structures, processes and premises for protection from the hazard of fire, panic and explosion.

  101.5.6 Energy. The provisions of the California Energy Code shall apply to the minimum design and construction of buildings for energy efficiency.

  101.6 Order of precedence and use.

  101.6.1 Differences. In the event of any differences between these building standards and the standard reference documents, the text of these building standards shall govern. In the event a local amendment to this code results in differences between these building standards and the amendment, the text of the amendment shall govern.

  101.6.2 Specific provision. Where a specific provision varies from a general provision, the specific provision shall apply.

  101.6.3 Conflicts. When the requirements of this code conflict with the requirements of any other part of the California Building Standards Code, Title 24, the most restrictive requirement shall prevail.

  101.6.4 Explanatory notes. Explanatory material, such as references to websites or other sources where additional information may be found, is included in this code in the form of notes. Notes are informational only and are not enforceable requirements of this code.

  101.7 City, county, or city and county amendments, additions or deletions. This code is intended to set mandatory minimum Green Building Standards and includes optional tiers that may, at the discretion of any city, county, or city and county, be applied.

• CMC § 82-2019 Medium relevance — show source text

  Incinerators shall be_ constructed, located and maintained in such manner that waste material can be safely burned at any hour of the day, where local ordi- nances permit. Fuel-fired and garbage burning incinerators shall be constructed and maintained in conformance with NFPA 82-2019 Incinerators, Waste and Linen Handling Systems and Equipment or UL 791-2006 Standard for Residential Incinerators, whichever is applicable.

  605.7.1 Residential incinerators. Residential incinerators shall be listed and labeled in accordance with UL 791.

  605.7.2 Spark arrestor. Incinerators shall be equipped with an effective means for arresting sparks.

  605.7.3 Restrictions. Where the fire code official determines that burning in incinerators located within 500 feet (152 m) of mountainous, brush or grass-covered areas will create an undue fire hazard because of atmospheric conditions, such burning shall be prohibited.

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  605.7.4 Time of burning. Burning shall take place only during approved hours.

  605.7.5 Discontinuance. The fire code official is authorized to require incinerator use to be discontinued immediately if the fire code official determines that smoke emissions are offensive to occupants of surrounding property or if the use of incinerators is determined by the fire code official to constitute a hazardous condition.

  605.7.6 Flue-fed incinerators in Group I-2. In Group I-2 occupancies, the continued use of existing flue-fed incinerators is prohibited.

  605.7.7 Incinerator inspections in Group I-2. Incinerators in Group I-2 occupancies shall be inspected not less than annually in accordance with the manufacturer’s instructions. Inspection records shall be maintained on the premises and made available to the fire code official upon request.

  605.8 Gas meters. Above-ground gas meters, regulators and piping subject to damage shall be protected by a barrier complying with Section 312 or otherwise protected in an approved manner.

  SECTION 606—COMMERCIAL COOKING EQUIPMENT AND SYSTEMS

  [M] 606.1 General. Commercial kitchen exhaust hoods shall comply with the requirements of the California Mechanical Code .

  [M] 606.2 Where required. A Type I hood shall be installed at or above all commercial cooking appliances and domestic cooking appliances used for commercial purposes that produce grease vapors.

  Exceptions:

  1. Factory-built commercial exhaust hoods that are listed and labeled in accordance with UL 710, and installed in accordance with Section 304.1 of the California Mechanical Code, shall not be required to comply with Sections 507.1.5, 507.2.3, 507.2.5, 507.2.8, 507.3.1, 507.3.3, 507.1.6 and 507.2.10 of the California Mechanical Code .
• CMC § 1207.5 Medium relevance — show source text

  Heat pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1207.5

  Heat sources . . . . . . . . . . . . . . . . . . . . . . . . . . . 1203.1

  Heat transfer fluid . . . . . . . . . . . . . . . . . . 1201.3, 1204.7

  Identification of piping . . . . . . . . . . . . . . . . . . . . . 1204.0

  Installation . . . . . . . . . . . . . . . . . . . . . . . 1205.0, 1221.0

  Insulation. . . . . . . . . 1201.2, 1217.8.2, 1217.10, 1220.4.7

  Joints and connections . . . . . . . . . . . . . . . . . . . . 1211.0

  Materials . . . . . . . . . . . . . . . . . . . . 1210.0, Table 1210.1

  Protection of potable water supply . . . . . . . . . . . 1202.0

  Radiant heating and cooling . . . . . . . . . . . . . . . . 1217.0

  Snow melt systems . . . . . . . . . . . . . . . . 1220.4, 1220.0,

  1217.8.2, Table 1220.4.2

  Safety devices. . . . . . . . . . . . . . . . . . . . . . . . . . . 1206.0

  Steam systems . . . . . . . . . . . . . . . . . . . . . . . . . . 1216.0

  Testing . . . . . . . . . . . . . . . . . . . . . . . . . . 1205.2, 1221.3

  Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1212.0

  Water heaters . . . . . . . . . . . . . . . . . . . . 1203.2, 1203.3,

  1207.3, Table 1203.2

  – I –

  IDLH

  Definition,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211.0

  Refrigeration . . . . . . . . . . . . . . . . 1106.2.5, 1106.11.10.3

  INCINERATORS

  Commercial and

  industrial type . . . . . . . . . . . . . . . . . . . . . . . . . . 924.0

  Fume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208.0, 512.3

  Residential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 924.3

  INDOOR HORTICULTURAL FACILITIES . . . . . . Appendix I

• CMC § 503.7.1 Medium relevance — show source text

  ** Heat pumps equipped with internal electric resistance heaters shall have controls that prevent supplemental heater operation where the heating load is capable of being met by the heat pump alone during both steady-state operation and setback recovery. Supplemental heater operation shall be permitted during outdoor coil defrost cycles. Exception: Heat pumps whose minimum efficiency is regulated by U.S. National Appliance Energy Conservation Act (NAECA) and whose ratings are in accordance with the requirements shown in Table E 503.7.1(2) and includes the use of an internal electric resistance heating. [ASHRAE 90.1:6.4.3.5] E 503.4.6.7 Humidification and Dehumidifica- tion Control. Humidification and dehumidification

  control shall be in accordance with Section E 503.4.6.7.1 through Section E 503.4.6.7.3. E 503.4.6.7.1 Dehumidification. Humidistatic controls shall not use mechanical cooling to reduce the humidity below the lower of a dew point of 55°F (12.8°C) or relative humidity of 60 percent in the coldest zone served by the system. Exceptions: (1) Lower humidity shall be permitted when operating mechanical cooling for temperature control.

  (2) Systems serving zones where specific humidity levels are required, such as museums and hospitals, and approved by the Authority Having Jurisdiction or required by accreditation standards, and where humidistatic controls are capable of and configured to maintain a dead band of at least 10 percent relative humidity where no active humidification or dehumidification takes place.

  (3) Systems serving zones where humidity levels are required to be maintained with precision of not more than ±5 percent relative humidity to comply with applicable codes or accreditation standards or as approved by the Authority Having Jurisdiction.

  [ASHRAE 90.1:6.4.3.6.1]

  E 503.4.6.7.2 Humidification. Humidistatic controls shall not use fossil fuel or electricity to produce relative humidity above 30 percent in the warmest zone served by the system.

  Exceptions:

  (1) Systems serving zones where specific humidity levels are required, such as museums and hospitals, and approved by the Authority Having Jurisdiction or required by accreditation standards, and where humidistatic controls are capable of and configured to maintain a dead band of at least 10 percent relative humidity where no active humidification or dehumidification takes place.

  TABLE E 503.4.6.4.2 MAXIMUM DAMPER LEAKAGE [1, 2]

  (cubic foot per minute per square foot) at 1.0 inch water gauge

  [ASHRAE 90.1: TABLE 6.4.3.4.3]