Chapter 1 Administration

Chapter 2 Definitions

Chapter 3 General Regulations

Chapter 4 Ventilation Air

Chapter 5 Exhaust Systems

Chapter 6 Duct Systems

Chapter 7 Combustion Air

Chapter 8 Chimneys and Vents

Chapter 9 Installation of Specific Appliances

Chapter 10 Boilers and Pressure Vessels

Chapter 11 Refrigeration

Chapter 12 Hydronics

Chapter 13 Fuel Gas Piping

Chapter 14 Process Piping

Chapter 15 Solar Energy Systems

Chapter 16 Stationary Power Plants

Chapter 17 Referenced Standards

Appendices [PDF]

Appendix A Residential Plan Examiner Review Form for HVAC System Design

Appendix B Procedures to be Followed to Place Gas Equipment in Operation

Appendix C Installation and Testing of Oil (Liquid) Fuel-Fired Equipment

Appendix D Fuel Supply: Manufactured/Mobile Home Parks and Recreational Vehicle Parks

Appendix E Sustainable Practices

Appendix F Sizing of Venting Systems and Outdoor Combustion and Ventilation Opening Design

Appendix G Example Calculation of Outdoor Air Rate

This chapter covers general requirements for heating, ventilating, air-conditioning, refrigeration, miscellaneous heat-producing, and energy-utilizing equipment or appliances. Such equipment or appliances shall comply with the requirements of this code.
Equipment or appliance shall be approved by the Authority Having Jurisdiction for safe use or comply with applicable nationally recognized standards as evidenced by the listing and label of an approved agency. A list of accepted standards is included in Chapter 17. Defective materials or parts shall be replaced in such a manner as not to invalidate an approval.
Installers shall furnish satisfactory evidence that the appliance is constructed in accordance with the requirements of this code. The permanently attached label of an approved agency shall be permitted to be accepted as such evidence.
Equipment regulated by this code requiring electrical connections of more than 50 volts shall have a positive means of disconnect adjacent to and in sight from the equipment served. A 120 volt receptacle shall be located within 25 feet (7620 mm) of the equipment for service and maintenance purposes. The receptacle need not be located on the same level as the equipment. Low-voltage wiring of 50 volts or less within a structure shall be installed in a manner to prevent physical damage. Electrical wiring, controls, and connections to equipment and appliances regulated by this code shall be in accordance with NFPA 70.
The tank, piping, and valves for appliances burning oil shall be installed in accordance with the requirements of NFPA 31.
A metal guard shall be provided around exposed flywheels, fans, pulleys, belts, and moving machinery that are portions of a heating, ventilating, or refrigerating system.
Listed pipe, pipe fittings, appliances, appurtenances, equipment, materials, and devices used in a mechanical system shall be listed or labeled (third-party certified) by a listing agency (accredited conformity assessment body) and shall comply with the approved applicable recognized standards referenced in this code, and shall be free from defects. Unless otherwise provided for in this code, materials, appurtenances, or devices used or entering into the construction of mechanical systems, or parts thereof, shall be submitted to the Authority Having Jurisdiction for approval.
Each length of pipe and each pipe fitting, material, and device used in a mechanical system shall have cast, stamped, or indelibly marked on it the manufacturer's mark or name, which shall readily identify the manufacturer to the end user of the product. Where required by the approved standard that applies, the product shall be marked with the weight and the quality of the product. Materials and devices used or entering into the construction of mechanical systems, or parts thereof, shall be marked and identified in a manner satisfactory to the Authority Having Jurisdiction. Such marking shall be done by the manufacturer. Field markings shall not be acceptable.

Exception: Markings shall not be required on nipples created from cutting and threading of approved pipe.
Standards listed or referred to in this chapter or other chapters cover materials that will conform to the requirements of this code, where used in accordance with the limitations imposed in this or other chapters thereof and their listing. Where a standard covers materials of various grades, weights, quality, or configurations, the portion of the listed standard that is applicable shall be used. Design and materials for special conditions or materials not provided for herein shall be permitted to be used by special permission of the Authority Having Jurisdiction after the Authority Having Jurisdiction has been satisfied as to their adequacy. A list of accepted mechanical system material standards is referenced in Table 1701.1.
In existing buildings or premises in which mechanical installations are to be altered, repaired, or renovated, the Authority Having Jurisdiction has discretionary powers to permit deviation from the provisions of this code, provided that such proposal to deviate is first submitted for proper determination in order that health and safety requirements, as they pertain to mechanical systems, shall be observed.
Nothing in this code is intended to prevent the use of systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durability, and safety over those prescribed by this code. Technical documentation shall be submitted to the Authority Having Jurisdiction to demonstrate equivalency. The Authority Having Jurisdiction shall have the authority to approve or disapprove the system, method, or device for the intended purpose.

    However, the exercise of this discretionary approval by the Authority Having Jurisdiction shall have no effect beyond the jurisdictional boundaries of said Authority Having Jurisdiction. An alternate material or method of construction so approved shall not be considered as in accordance with the requirements, intent, or both of this code for a purpose other than that granted by the Authority Having Jurisdiction where the submitted data does not prove equivalency.
The Authority Having Jurisdiction shall have authority to require tests, as proof of equivalency.
Tests shall be made in accordance with approved testing standards, by an approved testing agency at the expense of the applicant. In the absence of such standards, the Authority Having Jurisdiction shall have the authority to specify the test procedure.
The Authority Having Jurisdiction shall have the authority to require tests to be made or repeated where there is reason to believe that a material or device no longer is in accordance with the requirements on which its approval was based.
An alternative engineered design shall comply with the intent of the provisions of this code and shall provide an equivalent level of quality, strength, effectiveness, fire resistance, durability, and safety, Material, equipment, or components shall be designed and installed in accordance with the manufacturer's installation instructions.
The registered design professional shall indicate on the design documents that the mechanical system, or parts thereof, is an alternative engineered design so that it is noted on the construction permit application. The permit and permanent permit records shall indicate that an alternative engineered design was part of the approved installation.
The registered design professional shall submit sufficient technical data to substantiate the proposed alternative engineered design and to prove that the performance meets the intent of this code.
The registered design professional shall provide two complete sets of signed and sealed design documents for the alternative engineered design for submittal to the Authority Having Jurisdiction. The design documents shall include floor plans of the work. Where appropriate, the design documents shall indicate location, sizing, and loading of appurtenances, equipment, appliances, and devices.
An approval of an alternative engineered design shall be at the discretion of the Authority Having Jurisdiction. The exercise of this discretionary approval by the Authority Having Jurisdiction shall have no effect beyond the jurisdictional boundaries of said Authority Having Jurisdiction. An alternative engineered design so approved shall not be considered as in accordance with the requirements, intent or both of this code for a purpose other than that granted by the Authority Having Jurisdiction.
The Authority Having Jurisdiction shall have the authority to require testing of the alternative engineered design in accordance with Section 302.2.1, including the authority to require an independent review of the design documents by a registered design professional selected by the Authority Having Jurisdiction and at the expense of the applicant.
The alternative engineered design shall be tested and inspected in accordance with the submitted testing and inspection plan and the requirements of this code.
Except as otherwise provided in this code, the installation of appliances regulated by this code shall be in accordance with the conditions of the listing. The appliance installer shall leave the manufacturer's installation and operating instructions attached to the appliance. Clearances of listed appliances from combustible materials shall be as specified in the listing or on the rating plate.
Central heating furnaces and boilers installed in closets or alcoves shall be listed for such installation. Central heating furnaces not listed for closet or alcove installation shall be installed in a room or space having a volume not less than 12 times the total volume of the furnace. Central heating boilers not listed for closet or alcove installation shall be installed in a room or space having a volume 16 times the volume of the boiler. [OSHPD 1, 2, 3 & 4] The total volume of the boilers shall be based on the total number of central-heating boilers that can operate at the same time.

Exception: [OSHPD 1, 2, 3 & 4] A 25 percent reduction in the boiler room volume is allowed with forced-draft boilers and approved ventilation of the boiler room. In no case shall boiler room volume or clearances be reduced below those required by the conditions of the boiler listing. The boiler and the boiler room ventilation system. including fans, controls, and damper motors shall be on emergency power when required by Section 321.0. The ventilation system shall either operate continuously, or, if interlocked with the boiler(s) it shall not interfere with the proper boiler operation.

    Where the ceiling height of the room or space exceeds 8 feet (2438 mm), the volume shall be calculated on the basis of an 8 foot (2438 mm) height.

    The installation clearances shall be in accordance with the appliance listing, shall not be reduced, and shall be installed in accordance with Section 904.1.
Except as otherwise provided in this code, unlisted appliances shall be installed in accordance with the manufacturer's installation instructions and with the standard clearances from combustibles in accordance with Section 303.10 or Section 303.10.1.
Appliances designed to be fixed in position shall be securely fastened in place in accordance with the manufacturer's installation instructions. Supports for appliances shall be designed and constructed to sustain vertical and horizontal loads within the stress limitations specified in the building code.
Movement of appliances with casters shall be limited by a restraining device installed in accordance with the connector and appliance manufacturer's installation instructions.
Where more than one heating, cooling, ventilating, or refrigerating system is installed on the roof of a building or within a building, it shall be permanently identified as to the area or space served by the equipment.
Containers, container valves regulating equipment, and appurtenances for the storage and supply of liquefied petroleum gas shall be installed in accordance with NFPA 58 and the California Fire Code.
[HCD 1 & HCD 2] Liquefied petroleum gas-burning appliances shall not be installed in a pit, basement, or similar location where heavier-than-air gas might collect. Appliances so fueled shall not be installed in an above-grade under-floor space or basement unless such location is provided with an approved means for removal of unburned gas.
Equipment and appliances on roofs shall be designed or enclosed so as to withstand climatic conditions in the area in which they are installed. Where enclosures are provided, each enclosure shall permit easy entry and movement, shall be of reasonable height, and shall have not less than a 30 inch (762 mm) clearance between the entire service access panel(s) of the equipment and appliance, and the wall of the enclosure. [NFPA 54:9.4.1.1]
Roofs on which equipment and appliances are to be installed shall be capable of supporting the additional load or shall be reinforced to support the additional load. [NFPA 54:9.4.1.2]
Access locks, screws, and bolts shall be of corrosion-resistant material. [NFPA 54:9.4.1.3]
Equipment and appliances shall be installed in accordance with the manufacturer's installation instructions. [NFPA 54:9.4.2.1]
Equipment and appliances shall be installed on a well-drained surface of the roof. Not less than 6 feet (1829 mm) of clearance shall be between a part of the equipment and appliance and the edge of a roof or similar hazard, or rigidly fixed rails, guards, parapets, or other building structures not less than 42 inches (1067 mm) in height shall be provided on the exposed side. [NFPA 54:9.4.2.2]
Equipment and appliances requiring an external source of electrical power for its operation shall be provided with the following:
  1. A readily accessible electrical disconnecting means within sight of the equipment and appliance that will completely de-energize the equipment and appliance.
  2. A 120-VAC grounding-type receptacle outlet on the roof adjacent to the equipment and appliance. The receptacle outlet shall be on the supply side of the disconnect switch. [NFPA 54:9.4.2.3]
Where water stands on the roof at the equipment and appliance, or in the passageways to the equipment and appliance, or where the roof is of a design having a water seal, an approved platform, walkway, or both shall be provided above the waterline. Such platforms or walkways shall be located adjacent to the equipment and appliance and control panels so that the equipment and appliance is capable of being safely serviced where water stands on the roof. [NFPA 54:9.4.2.4]
Appliances shall be supported and connected to the piping so as not to exert undue strain on the connections. [NFPA 54:9.1.17]
Where not provided in this code, listed and unlisted equipment or appliances shall be installed to maintain the required clearances for servicing and to combustible construction in accordance with the manufacturer's installation instructions.
Reduce clearances to combustible construction for listed equipment and appliances shall comply with the listing and Table 303.10.1. Where permitted by the manufacturer, and not provided in this code, reduce clearances to combustible construction for unlisted equipment and appliances shall comply with Table 303.10.1.

TABLE 303.10.1
REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
[NFPA 54: TABLE 10.2.3]
TYPE OF PROTECTION APPLIED
TO AND COVERING SURFACES
OF COMBUSTIBLE MATERIAL
WITHIN THE DISTANCE SPECIFIED
AS THE REQUIRED CLEARANCE
WITH NO PROTECTION
[SEE FIGURE 303.10.1(1)
THROUGH FIGURE 303.10.1(3)]
WHERE THE REQUIRED CLEARANCE WITH NO PROTECTION FROM APPLIANCE, VENT CONNECTOR,
OR SINGLE-WALL METAL PIPE IS:
36 (Inches) 18 (Inches) 12 (Inches) 9 (Inches) 6 (Inches)
ALLOWABLE CLEARANCES WITH SPECIFIED PROTECTION (inches)
USE COLUMN 1 FOR CLEARANCES ABOVE APPLIANCE OR HORIZONTAL CONNECTOR. USE COLUMN 2 FOR
CLEARANCES FROM APPLIANCES, VERTICAL CONNECTOR, AND SINGLE-WALL METAL PIPE.
ABOVE
COLUMN 1
SIDES AND
REAR
COLUMN 2
ABOVE
COLUMN 1
SIDES AND
REAR
COLUMN 2
ABOVE
COLUMN 1
SIDES AND
REAR
COLUMN 2
ABOVE
COLUMN 1
SIDES AND
REAR
COLUMN 2
ABOVE
COLUMN 1
SIDES AND
REAR
COLUMN 2
  1.  (1)   312 inch thick masonry
    wall without ventilated air space
- 24 - 12 - 9 - 6 - 5
  1.  (2)   12 of an inch insulation
    board over 1 inch glass
    fiber or mineral wool batts
24 18 12 9 9 6 6 5 4 3
  1.  (3)   0.024 inch sheet metal
    over 1 inch glass fiber or
    mineral wool batts reinforced
    with wire on rear
    face with ventilated air
    space
18 12 9 6 6 4 5 3 3 3
  1.  (4)   312 inch thick masonry
    wall with ventilated air space
- 12 - 6 - 6 - 6 - 6
  1.  (5)   0.024 inch sheet metal
    with ventilated air space
18 12 9 6 6 4 5 3 3 2
  1.  (6)   12 of an inch insulation
    board with ventilated
    air space
18 12 9 6 6 4 5 3 3 3
  1.  (7)   0.024 inch sheet metal
    with ventilated air space
    over 0.024 inch sheet
    metal with ventilated air
    space
18 12 9 6 6 4 5 3 3 3
  1.  (8)   1 inch glass fiber or
    mineral wool batts sandwiched
    between two sheets
    0.024 inch sheet metal
    with ventilated air
    space
18 12 9 6 6 4 5 3 3 3
For SI units: 1 inch = 25.4 mm, °C = (°F-32)/1.8

Notes:

1   Reduction of clearances from combustible materials shall not interfere with combustion air, draft hood clearance and relief, and accessibility of servicing.
2   Clearances shall be measured from the outer surface of the combustible material to the nearest point on the surface ofthe appliance, disregarding an intervening protection applied to the combustible material.
3   Spacers and ties shall be of noncombustible material. No spacer or tie shall be used directly opposite the appliance or connector.
4   Where clearance reduction systems use a ventilated air space, a provision for air circulation shall be provided as described. [See Figure 303.10.1(2) and Figure 303.10.1(3)]
5   There shall be not less than 1 inch (25.4 mm) between clearance reduction systems and combustible walls and ceilings for reduction systems using a ventilated air space.
6   Where a wall protector is mounted on a single flat wall away from comers, it shall have not less than a 1 inch (25.4 mm) air gap. To provide air circulation, the bottom and top edges, or the side and top edges, or edges shall be left open.
7   Mineral wool batts (blanket or board) shall have a density of not less than 8 pounds per cubic foot (lb/ft3) (128 kg/m3) and a minimum melting point of 1500°F (816°C).
8   Insulation material used as part of a clearance reduction system shall have a thermal conductivity of 1 British thennal unit inch per hour square toot degree Fahrenheit [Btu·in/(h·ft2·°F)] [0.1 W/(m·K)] or less.
9   There shall be not less than 1 inch (25.4 mm) between the appliance and the protector. In no case shall the clearance between the appliance and the combustible surface be reduced below that allowed in this table.
10 Clearances and thicknesses are minimum; larger clearances and thicknesses are acceptable.
11 Listed single-wall connectors shall be installed in accordance with the terms of their listing and the manufacturer's installation instructions.
Notes:

1   A - Equals the clearance with no protection specified in Table 802.7.3.4 and Table 904.2 and in the sections applying to various types of appliances.
2   B - Equals the reduced clearance permitted in accordance with Table 303.10.1.
3   The protection applied to the construction using combustible material shall extend far enough in each direction to make C equal to A.
FIGURE 303.10.1(1)1, 2, 3
EXTENT OF PROTECTION NECESSARY TO REDUCE
CLEARANCES FROM GAS APPLIANCES OR VENT CONNECTORS
[NFPA 54: FIGURE 10.3.2.3(a)]

Note: Masonry walls shall be permitted to be attached to combustible walls using wall ties. Spacers shall not be used directly behind appliance or connector.
FIGURE 303.10.1(2)
WALL PROTECTOR CLEARANCE REDUCTION SYSTEM
[NFPA 54: FIGURE 10.3.2.3(b)]

FIGURE 303.10.1(3)
MASONRY CLEARANCE REDUCTION SYSTEM
[NFPA 54: FIGURE 10.3.2.3(c)]
Appliances shall be located with respect to building construction and other equipment so as to permit access to the appliance. Sufficient clearance shall be maintained to permit cleaning of heating surfaces; the replacement of filters, blowers, motors, burners, controls, and vent connections; the lubrication of moving parts where necessary; the adjustment and cleaning of burners and pilots; and the proper functioning of explosion vents, where provided. For attic installation, the passageway and servicing area adjacent to the appliance shall be floored. [NFPA 54:9.2.1]

    Unless otherwise specified, not less than 30 inches (762 mm) in depth, width, and height of working space shall be provided.

Exception: A platform shall not be required for unit heaters or room heaters.
Where equipment or appliances that require service are installed on a roof having a slope of 4 units vertical in 12 units horizontal (33 percent slope) or more, a level platform of not less than 30 inches by 30 inches (762 mm by 762 mm) shall be provided at the service side of the equipment or appliance.
Equipment and appliances located on roofs or other elevated locations shall be accessible. [NFPA 54:9.4.3.1]
Buildings exceeding 15 feet (4572 mm) in height shall have an inside means of access to the roof, unless other means acceptable to the Authority Having Jurisdiction are used. [NFPA 54:9.4.3.2]
The inside means of access shall be a permanent, or foldaway inside stairway or ladder, terminating in an enclosure, scuttle, or trap door. Such scuttles or trap doors shall be not less than 22 inches by 24 inches (559 mm by 610 mm) in size, shall open easily and safely under all conditions, especially snow; and shall be constructed so as to permit access from the roof side unless deliberately locked on the inside.

    Not less than 6 feet (1829 mm) of clearance shall be between the access opening and the edge of the roof or similar hazard, or rigidly fixed rails or guards not less than 42 inches (1067 mm) in height shall be provided on the exposed side. Where parapets or other building structures are utilized in lieu of guards or rails, they shall be not less than 42 inches (1067 mm) in height. [NFPA 54:9.4.3.3]
Permanent ladders required by Section 304.3.1.1 shall be constructed in accordance with the following:
  1. Side railings shall extend not less than 30 inches (762 mm) above the roof or parapet wall.
  2. Landings shall not exceed 18 feet (5486 mm) apart measured from the finished grade.
  3. Width shall be not less than 14 inches (356 mm) on center.
  4. Rungs spacing shall not exceed 12 inches (305 mm) on center and each rung shall be capable of supporting a 300 pound (136.1 kg) load.
  5. Toe space shall be not less than 6 inches (152 mm).
Permanent lighting shall be provided at the roof access. The switch for such lighting shall be located inside the building near the access means leading to the roof. [NFPA 54:9.4.3.4]
An attic or under-floor space in which an appliance is installed shall be accessible through an opening and passageway not less than the largest component of the appliance, and not less than 22 inches by 30 inches (559 mm by 762 mm).
Where the height of the passageway is less than 6 feet (1829 mm), the distance from the passageway access to the appliance shall not exceed 20 feet (6096 mm) measured along the centerline of the passageway. [NFPA 54:9.5.1.1]
The passageway shall be unobstructed and shall have solid flooring not less than 24 inches (610 mm) wide from the entrance opening to the appliance. [NFPA 54:9.5.1.2]
A level working platform not less than 30 inches by 30 inches (762 mm by 762 mm) shall be provided in front of the service side of the appliance. [NFPA 54:9.5.2]

Exception: A working platform need not be provided where the furnace is capable of being serviced from the required access opening. The furnace service side shall not exceed 12 inches (305 mm) from the access opening.
A permanent 120-volt receptacle outlet and a lighting fixture shall be installed near the appliance. The switch controlling the lighting fixture shall be located at the entrance to the passageway. [NFPA 54:9.5.3]
Appliances in garages and in adjacent spaces that open to the garage and are not part of the living space of a dwelling unit shall be installed so that burners and burner-ignition devices are located not less than 18 inches (457 mm) above the floor unless listed as flammable vapor ignition resistant. [NFPA 54:9.1.10.1]
Appliances installed in garages, warehouses, or other areas subject to mechanical damage shall be guarded against such damage by being installed behind protective barriers or by being elevated or located out of the normal path of vehicles.
Where appliances are installed within a garage and are enclosed in a separate enclosed space having access only from outside of the garage, such appliances shall be permitted to be installed at floor level, provided the required combustion air is taken from the exterior of the garage. [NFPA 54:9.1.10.3]
Heating equipment located in rooms where cellulose nitrate plastic is stored or processed shall be in accordance with the fire code.
For buildings located in flood hazard areas, heating, ventilating, air-conditioning, refrigeration, miscellaneous heat-producing, and energy-utilizing equipment and appliances shall be elevated at or above the elevation in accordance with the building code for utilities and attendant equipment or the elevation of the lowest floor, whichever is higher.

Exception: Equipment and appliances shall be permitted to be located below the elevation in accordance with the building code for utilities and attendant equipment or the elevation of the lowest floor, whichever is higher, provided that the systems are designed and installed to prevent water from entering or accumulating within their components and the systems are constructed to resist hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to such elevation.
Mechanical systems in buildings located in coastal high hazard areas shall be in accordance with the requirements of Section 305.2, and mechanical systems, pipes, and appurtenances shall not be mounted on or penetrate through walls that are intended to breakaway under flood loads in accordance with the building code.
Outside air exhaust openings and air intake openings shall be located at or above the elevation required by the building code for utilities and attendant equipment or the elevation of the lowest floor, whichever is higher.
Unless required for the functionality and safety of the elevator system, mechanical systems shall not be located in an elevator shaft.
Where a water heater is located in an attic, in or on an attic-ceiling assembly, floor-ceiling assembly, or floor-subfloor assembly where damage results from a leaking water heater, a watertight pan of corrosion-resistant materials shall be installed beneath the water heater with not less than 34 of an inch (20 mm) diameter drain to an approved location. Such pan shall be not less than 112 inches (38 mm) in depth.
Heating appliances shall be equipped with a listed device or devices that will shut off the fuel supply to the main burner or burners in the event of pilot or ignition failure. Liquefied petroleum gas-air-burning heating appliances shall be equipped with a listed automatic device or devices that will shut off the flow of gas to the pilot in the event of ignition failure.

Exception: The listed shutoff devices shall not be required on range or cooking tops, log lighters, lights, or other open-burner manually operated appliances, or listed appliances not requiring such devices and specific industrial appliances as approved by the Authority Having Jurisdiction.

    Heating appliances whose manual fuel controls are not readily accessible from the main portion of the building being heated shall be equipped with remote controls.

    Forced-air and gravity-type warm air furnaces shall be equipped with a listed air outlet temperature limit control that cannot be set for temperatures exceeding 250°F (121°C). Such controls shall be located in the bonnet or plenum, within 2 feet (610 mm) of the discharge side of the heating element of gravity furnaces or in accordance with the conditions of listing.

    Electric duct heaters shall be equipped with an approved automatic reset air outlet temperature limit control that will limit the outlet air temperature to not exceed 200°F (93°C). The electric elements of the heater shall be equipped with fusible links or a manual reset temperature limit control that will prevent outlet air temperature in excess of 250°F (121°C).
Fuel-burning heating appliances shall bear a permanent and legible factory-applied nameplate on which shall appear:
  1. The name or trademark of the manufacturer.
  2. The approved fuel input rating of the appliance, expressed in Btu/h (kW).
  3. The model number or equivalent.
  4. The serial number.
  5. Instructions for the lighting, operation, and shutdown of the appliance.
  6. The type of fuel approved for use with the appliance.
  7. The symbol of an approved agency certifying compliance of the equipment with recognized standards.
  8. Required clearances from combustible surfaces on which or adjacent to which it is permitted to be mounted.
Electric heating appliances shall bear a permanent and legible factory-applied nameplate on which shall appear:
  1. The name or trademark of the manufacturer.
  2. The model number or equivalent.
  3. The serial number.
  4. The electrical rating in volts, amperes (or watts), and, for other than single phase, the number of phases.
  5. The output rating in Btu/h (kW).
  6. The electrical rating in volts, amperes, or watts of each field-replaceable electrical component.
  7. The symbol of an approved agency certifying compliance of equipment with recognized standards.
  8. Required clearances from combustible surfaces on which or adjacent to which it is permitted to be mounted.
    An appliance shall be accompanied by clear and complete installation instructions, including required clearances from combustibles other than mounting or adjacent surfaces, and temperature rating of field-installed wiring connections exceeding 140°F (60°C).
Heat pumps and electric cooling appliances shall bear a permanent and legible factory-applied nameplate on which shall appear:
  1. The name or trademark of the manufacturer.
  2. The model number or equivalent.
  3. The serial number.
  4. The amount and type of refrigerant.
  5. The factory test pressures or pressures applied.
  6. The electrical rating in volts, amperes, and, for other than single phase, the number of phases.
  7. The output rating in Btu/h (kW).
  8. The electrical rating in volts, amperes, or watts of each field replaceable electrical component.
  9. The symbol of an approved agency certifying compliance of the equipment with recognized standards.
  10. Required clearances from combustible surfaces on which or adjacent to which it is permitted to be mounted.
    An appliance shall be accompanied by clear and complete installation instructions, including required clearances from combustible other than mounting or adjacent surfaces, and temperature rating of field-installed wiring connections exceeding 140°F (60°C).
Absorption units shall bear a permanent and legible factory-applied nameplate on which shall appear:
  1. The name or trademark of the manufacturer.
  2. The model number or equivalent.
  3. The serial number.
  4. The amount and type of refrigerant.
  5. Hourly rating in Btu/h (kW).
  6. The type of fuel approved for use with the unit.
  7. Cooling capacity Btu/h (kW).
  8. Required clearances from combustible surfaces on which or adjacent to which it is permitted to be mounted.
  9. The symbol of an approved agency certifying compliance of the equipment with recognized standards.
Piping or equipment shall not be so located as to interfere with the normal use thereof or with the normal operation and use of windows, doors, or other required facilities.
Design, construction, and workmanship shall comply with accepted engineering practices and shall be of such character as to secure the results sought to be obtained by this code.
It shall be unlawful to conceal cracks, holes, or other imperfections in materials by welding, brazing, or soldering, by using therein or thereon paint, wax, tar, solvent cement, other leak-sealing or repair agent.
Mechanical systems shall be installed in a manner that is in accordance with this code, applicable standards, and the manufacturer's installation instructions.
Condensate from air washers, air-cooling coils, condensing appliances, and the overflow from evaporative coolers and similar water-supplied equipment or similar air-conditioning equipment shall be collected and discharged to an approved plumbing fixture or disposal area. Where discharged into the drainage system, equipment shall drain by means of an indirect waste pipe. The waste pipe shall have a slope of not less than 18 inch per foot (10.4 mm/m) or 1 percent slope and shall be of approved corrosion-resistant material not smaller than the outlet size in accordance with Section 310.3 or Section 310.4 for air-cooling coils or condensing appliances, respectively. Condensate or wastewater sha1l not drain over a public way.
Where approved by the Authority Having Jurisdiction, condensate pumps shall be installed in accordance with the manufacturer's installation instructions. Pump discharge shall rise vertically to a point where it is possible to connect to a gravity condensate drain and discharged to an approved disposal point. Each condensing unit shall be provided with a separate sump and interlocked with the equipment to prevent the equipment from operating during a failure. Separate pumps shall be permitted to connect to a single gravity indirect waste where equipped with check valves and approved by the Authority Having Jurisdiction.
Where an equipment or appliance is installed in a space where damage is capable of resulting from condensate overflow, other than damage to replaceable lay-in ceiling tiles, a drain line shall be provided and shall be drained in accordance with Section 310.1. An additional protection method for condensate overflow shall be provided in accordance with one of the following:
  1. A water level detecting device that will shut off the equipment or appliance in the event the primary drain is blocked.
  2. An additional watertight pan of corrosion-resistant material, with a separate drain line, installed beneath the cooling coil, unit, or the appliance to catch the overflow condensate due to a clogged primary condensate drain.
  3. An additional drain line at a level that is higher than the primary drain line connection of the drain pan.
  4. An additional watertight pan of corrosion-resistant material with a water level detection device installed beneath the cooling coil, unit, or the appliance to catch the overflow condensate due to a clogged primary condensate drain and to shut off the equipment.
    The additional pan or the additional drain line connection shall be provided with a drain pipe of not less than 34 of an inch (20 mm) nominal pipe size, discharging at a point that is readily observed.
Where insulation or appurtenances are installed where damage is capable of resulting from a condensate drain pan overfill, such installations shall occur above the rim of the drain pan with supports. Where the supports are in contact with the condensate waste, the supports shall be of approved corrosion-resistant material.
Condensate waste pipes from air-cooling coils shall be sized in accordance with the equipment capacity as specified in Table 310.3. The material of the piping shall comply with the pressure and temperature rating of the appliance or equipment, and shall be approved for use with the liquid being discharged.

TABLE 310.3
MINIMUM CONDENSATE PIPE SIZE
EQUIPMENT CAPACITY IN
TONS OF REFRIGERATION
MINIMUM CONDENSATE
PIPE DIAMETER
(inches)
Up to 20 34
21-40 1
41-90 114
91-125 112
126-250 2
For SI units: 1 ton of refrigeration = 3.52kW, 1 inch = 25 mm

    The size of condensate waste pipes is for one unit or a combination of units, or as recommended by the manufacturer. The capacity of waste pipes assumes a 18 inch per foot (10.4 mm/m) or 1 percent slope, with the pipe running three-quarters full at the following pipe conditions:

Outside Air - 20% Room Air - 80%
DB WB DB WB
90°F 73°F 75°F 62.5°F
For SI units: °C = (°F - 32)/1.8

    Condensate drain sizing for other slopes or other conditions shall be approved by the Authority Having Jurisdiction.
Condensate drain lines shall be configured or provided with a cleanout to permit the clearing of blockages and for maintenance without requiring the drain line to be cut.
Condensate drain lines from individual condensing appliances shall be sized as required by the manufacturer's instructions. Condensate drain lines serving more than one appliance shall be approved by the Authority Having Jurisdiction prior to installation.
Air-conditioning condensate waste pipes shall connect indirectly, except where permitted in Section 310.6, to the drainage system through an air gap or airbreak to trapped and vented receptors, dry wells, leach pits, or the tailpiece of plumbing fixtures. A condensate drain shall be trapped in accordance with the appliance manufacturer's instruction or as approved.
Where the condensate waste from air-conditioning coils discharges by direct connection to a lavatory tailpiece or to an approved accessible inlet on a bathtub overflow, the connection shall be located in the area controlled by the same person controlling the air-conditioned space.
Female plastic screwed fittings shall be used with plastic male fittings and plastic male threads.
A heating or cooling air system shall be provided with return air, outside air, or both. A heating or cooling air system regulated by this code and designed to replace required ventilation shall be arranged to discharge into a conditioned space not less than the amount of outside air specified in Chapter 4.
Air filters shall be installed in a heating, cooling, or makeup air system. Media-type air filters shall comply with UL 900. Electrostatic and high efficiency particulate filters shall comply with Section 937.0.

Exceptions:
  1. Systems serving single guest rooms or dwelling units shall not require a listed filter.
  2. Air filters used in listed appliances and in accordance with the manufacturer's instructions.
Outside or return air for a heating or cooling air system shall not be taken from the following locations:
  1. Less than 10 feet (3048 mm) in distance from an appliance vent outlet, a vent opening of a plumbing drainage system, or the discharge outlet of an exhaust fan, unless the outlet is 3 feet (914 mm) above the outside-air inlet.
  2. Less than 10 feet (3048 mm) above the surface of an abutting public way, sidewalk, street, alley, or driveway.
  3. A hazardous or insanitary location, or a refrigeration machinery room as defined in this code.
  4. An area, the volume of which is less than 25 percent of the entire volume served by such system, unless there is a permanent opening to an area the volume of which is equal to 25 percent of the entire volume served.

    Exception: Such openings where used for a heating or cooling air system in a dwelling unit shall be permitted to be reduced to not less than 50 percent of the required area, provided the balance of the required return air is taken from a room or hall having not less than three doors leading to other rooms served by the furnace.
  5. A closet, bathroom, toilet room, or kitchen.
  6. Rooms or spaces containing a fuel-burning appliance therein. Where such room or space serves as source of return-air.
  7. Exceptions:

    1. This shall not apply to fireplaces, fireplace appliances, residential cooking appliances, direct-vent appliances, enclosed furnaces, and domestic-type clothes dryers installed within the room or space.
    2. This shall not apply to a gravity-type or listed vented wall heating or cooling air system.
    3. This shall not apply to a blower-type heating or cooling air system installed in accordance with the following requirements:

      1. Whcre the return air is taken from a room or space having a volume exceeding 1 cubic foot (0.03 m3) for each 10 Btu/h (0.003 kW) fuel input rating of fuel-burning appliances therein.
      2. Not less than 75 percent of the supply air is discharged back into the same room or space.
      3. Return-air inlets shall not be located within 10 feet (3048 mm) from an appliance firebox or draft diverter in the same enclosed room or confined space.
Return air from one dwelling unit shall not discharge into another dwelling unit through the heating or cooling air system.
Water supply, sanitary drainage, and backflow protection shall be in accordance with the California Plumbing Code.
Piping, tubing, appliances, and appurtenances shall be supported in accordance with this code, the manufacturer's installation instructions, and in accordance with the Authority Having Jurisdiction.
Hangers and anchors shall be of sufficient strength support the weight of the pipe or tubing and its contents. Piping or tubing shall be isolated from incompatible materials.
Suspended piping or tubing shall be supported at intervals not to exceed those shown in Table 313.3.

TABLE 313.3
HANGERS AND SUPPORTS
MATERIALS TYPES OF JOINTS HORIZONTAL VERTICAL
Cast Lead and Oakum 5 feet, except 10 feet where 10 foot
lengths are installed1, 2, 3
Base and each floor, not to exceed 15 feet
Compression Gasket Every other joint, unless over 4 feet
then support each joint1, 2, 3
Base and each floor, not to exceed 15 feet
Cast-Iron Hubless Shielded Coupling Every other joint, unless over 4 feet
then support each joint1, 2, 3, 4
Base and each floor, not to exceed 15 feet
Copper & Copper Alloys Soldered, Brazed,
Threaded, or Mechanical
112 inches and smaller, 6 feet; 2
inches and larger, 10 feet
Each floor, not to exceed 10 feet5
Steel Pipe for Water DWV Threaded or Welded 34 inch and smaller, 10 feet; 1 inch
and larger, 12 feet
Every other floor, not to exceed 25 feet5
Steel Pipe for Gas Threaded or Welded 12 inch, 6 feet; 34 inch and 1 inch, 8
feet; 114 inches and larger, 10 feet
12 inch, 6 feet; 34 inch and 1 inch, 8 feet;
114 inches every floor level
Schedule 40 PVC and
ABS
Solvent Cemented All sizes, 4 feet; allow for expansion
every 30 feet3
Base and each floor; provide mid-story
guides; provide for expansion every 30 feet
CPVC Solvent Cemented 1 inch and smaller, 3 feet; 114 inches
and larger, 4 feet
Base and each floor; provide mid-story guides
Lead Wiped or Burned Continuous Support Not to exceed 4 feet
Steel Mechanical In accordance with standards acceptable to the Authority Having Jurisdiction
PEX Cold Expansion, Insert
and Compression
1 inch and smaller, 32 inches;
114 inches and larger, 4 feet
Base and each floor;
provide mid-story guides
PEX-AL-PEX Metal insert and metal
compression
Base and each floor;
provide mid-story guides
PE-AL-PE Metal insert and metal
compression
Base and each floor;
provide mid-story guides
PE-RT Insert and Compression 1 inch and smaller, 32 inches;
114 inches and larger, 4 feet
Base and each floor;
provide mid-story guides
Polypropylene (PP) Fusion weld (socket, butt,
saddle, electrofusion),
threaded (metal threads
only), or mechanical
1 inch and smaller, 32 inches;
114 inches and larger, 4 feet
Base and each floor;
provide mid-story guides
For SI Unit: 1 inch = 25.4 mm, 1 foot = 304.8 mm

Notes:
1 Support adjacent to joint, not to exceed 18 inches (457 mm).
2 Brace not to exceed 40 feet (12192 mm) intervals to prevent horizontal movement.
3 Support at each horizontal branch connection.
4 Hangers shall not be placed on the coupling.
5 Vertical water lines shall be permitted to be supported in accordance with recognized engineering principles with regard to expansion and contraction, where first approved by the Authority Having Jurisdiction.
Piping or tubing shall be supported in such a manner as to maintain its alignment and prevent sagging.
Piping or tubing in the ground shall be laid on a firm bed for its entire length; where other support is otherwise provided, it shall be approved in accordance with Section 302.0.
Hanger rod sizes shall be not smaller than those shown in Table 313.6.

TABLE 313.6
HANGER ROD SIZES
PIPE AND TUBE SIZE
(inches)
ROD SIZES
(inches)
12 - 4 38
5 - 8 12
10 - 12 58
For SI units: 1 inch = 25.4 mm
Gas piping shall be supported by metal straps or hooks at intervals not to exceed those shown in Table 1311.2.4.1.
Heating, ventilating, and air-conditioning systems (including hydronic systems) shall be balanced in accordance with one of the following methods:
  1. AABC National Standards for Total System Balance
  2. ACCA Manual B
  3. ASHRAE 111
  4. NEBB Procedural Standards for Testing Adjusting Balancing of Environmental Systems
  5. SMACNA HVAC Systems Testing, Adjusting, and Balancing
Louvers located in areas within hurricane-prone regions that are within 1 mile (2 km) of the coastal mean high water line where the basic wind speed is 110 miles per hour (mi/h) (49.2 m/s) or more; or portions of hurricane-prone regions where the basic wind speed is 120 mi/h (53.6 m/s) or more; or Hawaii, as described in ASCE 7 shall be tested in accordance with Section 315.1.1 and Section 315.1.2.
Louvers that protect air intake or exhaust openings shall be tested in accordance with AMCA 550 for resistance to wind-driven rain.
Upon request by the Authority Having Jurisdiction, louvers protecting intake and exhaust ventilation ducts that are not fixed in the open position and located within 30 feet (9144 mm) of the grade shall be tested for impact resistance in accordance with AMCA 540.
Piping or tubing passing under or through walls shall be protected from breakage. Piping passing through or under cinders or other corrosive materials shall be protected from external corrosion in an approved manner. Approved provisions shall be made for expansion of hot water piping. Voids around piping or tubing passing through concrete floors on the ground shall be sealed.
Piping or tubing shall be installed so that the piping, tubing, or connections will not be subject to undue strains or stresses, and provisions shall be made for expansion, contraction, and structural settlement. No piping or tubing, unless designed and listed for such use, shall be directly embedded in concrete or masonry. No structural member shall be seriously weakened or impaired by cutting, notching, or otherwise as defined in the building code.
Piping or tubing subject to corrosion, erosion, or mechanical damage shall be protected in an approved manner.
Protectively coated pipe or tubing shall be inspected and tested, and a visible void, damage, or imperfection to the pipe coating shall be repaired in an approved manner.
Piping, tubing, and duct system penetrations of fire-resistance-rated walls, partitions, floors, floor/ceiling assemblies, roof/ceiling assemblies, or shaft enclosures shall be protected in accordance with the requirements of the building code.
Plastic piping or tubing, copper or copper alloy piping or tubing, and ducts penetrating framing members to within 1 inch (25.4 mm) of the exposed framing shall be protected by steel nail plates not less than No. 18 gauge (0.0478 inches) (1.2141 mm) in thickness. The steel nail plate shall extend along the framing member not less than 112 inches (38 mm) beyond the outside diameter of the pipe or tubing.

Exception: See Section 1311.3.3.
Sleeves shall be provided to protect piping through concrete and masonry walls and concrete floors.

Exception: Sleeves shall not be required where openings are drilled or bored.
Piping or tubing through concrete or masonry walls shall not be subject to a load from building construction.
In exterior walls, annular space between sleeves and pipes or tubing shall be sealed and made watertight, as approved by the Authority Having Jurisdiction. A penetration through fire-resistive construction shall be in accordance with Section 316.5.
A pipe sleeve through a firewall shall have the space around the pipe or tubing completely sealed with an approved fire-resistive material in accordance with other codes.
A structural member weakened or impaired by cutting, notching, or otherwise shall be reinforced, repaired, or replaced so as to be left in a safe structural condition in accordance with the requirements of the building code.
Mechanical system shall be constructed in such a manner as to restrict rodents or vermin from entering a building by following the ductwork from the outside into the building.
In or on buildings where openings have been made in walls, floors, or ceilings for the passage of ductwork or pipes, such openings shall be closed and protected by the installation of approved metal collars securely fastened to the adjoining structure.
Trenches deeper than the footings of a building or structure, and paralleling the same, shall be located not less than 45 degrees (0.79 rad) from the bottom exterior edge of the footing, or as approved in accordance with Section 302.0.
Tunneling and driving shall be permitted to be done in yards, courts, or driveways of a building site. Where sufficient depth is available to permit, tunnels shall be permitted to be used between open-cut trenches. Tunnels shall have a clear height of 2 feet (610 mm) above the pipe and shall be limited in length to one-half the depth of the trench, with a maximum length of 8 feet (2438 mm). Where pipes are driven, the drive pipe shall be not less than one size larger than the pipe to be laid.
Excavations required to be made for the installation of a mechanical system or part thereof, within the walls of a building, shall be open trench work and shall be kept open until it has been inspected, tested, and accepted.
Excavations shall be completely backfilled as soon after inspection as practicable. Precaution shall be taken to ensure compactness of backfill around piping without damage to such piping. Trenches shall be backfilled in thin layers to 12 inches (305 mm) above the top of the piping with clean earth, which shall not contain stones, boulders, cinderfill, frozen earth, construction debris, or other materials that will damage or break the piping or cause corrosive action. Mechanical devices such as bulldozers, graders, etc., shall be permitted to then be used to complete backfill to grade. Fill shall be properly compacted. Precautions shall be taken to ensure permanent stability for pipe laid in filled or made ground.
This part is applicable to health facilities regulated by OSHPD (See Adoption Tables for application for specific sections).

Note: This section has no corresponding provisions in the UMC. For the scope and authority of each state agency, refer to Chapter 1.
Refer to Section 1224.4.1 of the California Building Code.
Boilers shall have the capacity, based upon the rest ratings published by the Hydronics Institute or another acceptable national standard to supply the normal operating requirements of all connected systems and equipment.
A minimum of two boilers shall be provided. The arrangement of boilers shall be based on the capacity and capability of a boiler or boilers to operate all systems during-periods of breakdown or maintenance of anyone boiler.
Boiler systems providing space heating shall be designed to maintain a minimum temperature of 60°F (15.6°C) in general patient areas and the temperatures specified in Table 4-A for sensitive areas during periods of breakdown or maintenance of any one boiler
Boiler feed pumps, condensate return pumps, fuel oil pumps, and heating circulating pumps shall be connected and installed to provide standby service in the event of pump failure. Installation of duplex pumps or provision of a spare pump will meet this requirement.
At least two sources of heat (e.g. two pieces of equipment) shall be provided for supplying essential services such as sterilizers, hot water for dishwashing, and domestic hot water for minimum patient service, such as handwashing and baths. Booster heaters for dishwashing providing 125°F to 180°F (52°C to 82°C) water may be counted as the second source of heat for that service.
Boilers, if provided, shall accommodate Section 319.1.
Two or more interconnected water heaters are an acceptable means to provide two sources of heat for hot water (See Section 319.1.5).
The systems shall be designed to provide the temperatures and relative humidity for sensitive areas or rooms shown in Table 4-A. When outdoor humidity and internal moisture sources are not sufficient to meet the requirements of sensitive areas or rooms in Table 4-A, humidification shall be provided by means of the healthcare facility air-handling systems. Temperature shall be individually controlled for each operating and delivery room. Burn unit patient rooms that require humidifiers to comply with the requirements of sensitive areas or rooms in Table 4-A shall be provided with individual humidity control. All humidifiers shall use dry steam. Humidifiers shall be located within air handling systems or ductwork to avoid moisture accumulation in downstream components, including filters and insulation.

TABLE 320.0
HEATING, COOLING, AND RELATIVE HUMIDITY LD
REQUIREMENTS FOR SENSITIVE AREAS OR ROOMS
Area or Rooms Designation TEMPERATURE
RANGE1, 2
RELATIVE
HUMIDITY1, 3
°F Percent
Operating room 68-75 20-60
Cystoscopy 68-75 20-60
Cardiac catheterization lab 70-75 max 60
Trauma/cardiac room 70-75 20-60
Delivery room, Caesaream
operating room
68-75 20-60
Gastrointestinal endoscopy
procedure room
68-73 20-60
Post-Anesthesia Care Unit 70-75 20-60
Newborn nursery 72-78 30-60
Newborn Intensive-care nursery unit 72-78 30-60
Intensive care4 70-75 30-60
Burn Unit 70-7540-60

1   Thermostats and humidistat shall be either locally resetable and of the non-locking type or remotely resetable and of the locking type.
2   Systems shall be capable of maintaining the rooms within the range during normal operation. Lower or higher temperature shall be permitted when patients' comfort and/or medical conditions require those conditions.
3   The ranges listed are the minimum and maximum limits where control is specifically needed.
4   Types of intensive care service spaces are listed in the California Building Code.
Heating systems shall be designed based on the “Heating DB 99.6%” column of the Climatic Design Data in ASHRAE Handbook-Fundamentals. The systems shall be thermostatically controlled with appropriate zoning to achieve the above conditions.
Cooling systems shall be designed based on the 0.4% columns of the four Annual Design Conditions titled Cooling, Evaporation, Dehumidification, and Enthalpy shown by the Climate Design Data in ASHRAE Handbook-Fundamentals. The systems shall be thermostatically controlled with appropriate zoning to achieve the above conditions.
Systems shall accommodate the provisions of Sections 320.1.2 through 320.1.3.
Where air conditioning is provided, the system shall be thermostatically controlled in one or more zones.
The system shall be designed to provide the temperature and humidity's for sensitive areas for rooms shown in Table 4-A.
Where telecommunications service entrance rooms, technology equipment centers, or technology distribution rooms are provided in accordance with Section 1224.5 of the California Building Code, the following requirements shall apply:
Power for HVAC systems serving the room(s) shall be supplied by the Equipment Branch pursuant to the California Electrical Code. Where redundant systems are provided, only one shall be required to be supplied by the Equipment Branch.
Mechanical equipment or fixtures that are not directly related to the support of the room shall not be installed in or pass through the room.

Exception: Unrelated ductwork may be installed and shall be not less than 10 feet (3048 mm) above the finished floor.
HVAC systems shall be provided to maintain environmental conditions recommended in ASHRAE’s Thermal Guidelines for Data Processing Environment and the requirements of the specific equipment installed.
For projects associated with provision of psychiatric services in acute psychiatric hospitals, general acute-care hospitals, and special treatment program service units in skilled nursing facilities, psychiatric, seclusion, and holding-patient rooms shall be designed with security diffusers, grilles, and registers.
During periods of power outages essential electrical power shall be provided for the following equipment:
(Does not apply to OSHPD 3 surgical clinic.) All heating equipment necessary to maintain a minimum temperature of 60°F (15.6°) in patient areas which are not specified in Section 322.0.
All heating equipment necessary to maintain the minimum temperatures listed in Table 4-A for sensitive areas specified in Section 322.0.
Equipment necessary for humidification of the areas listed in Section 322.0.
All supply, return, and exhaust fans required to maintain the positive and negative air balances as required in Table 4-A.
All control components and control systems necessary for the normal operation of equipment required to have essential electrical power.
Alarms for airborne infection isolation rooms and protective environment rooms.
The following are sensitive areas or rooms:
  1. Operating room, hybrid operation room
  2. Cystoscopy
  3. Cardiac catheterization lab
  4. Trauma/cardiac room
  5. Delivery room, cesarean operating room
  6. Gastrointestinal endoscopy procedure room
  7. Post-anesthesia care unit
  8. Newborn nursery
  9. Newborn intensive-care nursery unit
  10. Intensive care
  11. Burn unit
The following conditions shall be met for sensitive areas or rooms:
  1. Thermostats and humidistats shall be either locally resettable and of the non-locking type or remotely resettable and of the locking type.
  2. Systems shall be capable of maintaining the rooms within the temperature range in Table 4-A during normal operation. Lower or higher temperature shall be permitted when patients’ comfort and/or medical conditions require those conditions.
  3. The humidity ranges listed in Table 4-A are the minimum and maximum limits where control is specifically needed.
  4. Types of intensive care service spaces are listed in the California Building Code.
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