The provisions of this chapter shall apply to the installation, operation and maintenance of fuel-fired appliances and heating
systems, electrical
systems and equipment, mechanical refrigeration
systems, elevator recall and commercial kitchen equipment.
The installation shall be made in accordance with the manufacturer's instructions and applicable federal, state and local rules and regulations. Where it becomes necessary to change, modify or alter a manufacturer's instructions in any way, written approval shall first be obtained from the manufacturer.
Electrical wiring and equipment used in connection with oil-burning equipment shall be installed and maintained in accordance with
Section 604 and NFPA 70.
The grade of fuel oil used in a burner shall be that for which the burner is approved and as stipulated by the burner manufacturer. Oil containing gasoline shall not be used. Waste crankcase oil shall be an acceptable fuel in Group F, M and S occupancies where utilized in equipment listed for use with waste oil and where such equipment is installed in accordance with the manufacturer's instructions and the terms of its listing.
The installation shall be provided with
access to equipment for cleaning hot surfaces; removing burners; replacing motors, controls, air filters,
chimney connectors, draft regulators and other working parts; and for adjusting, cleaning and lubricating parts.
After installation of the oil-burning equipment, operation and combustion performance tests shall be conducted to determine that the burner is in proper operating condition and that all accessory equipment, controls, and safety devices function properly.
Contractors installing industrial oil-burning
systems shall furnish not less than two copies of diagrams showing the main oil lines and controlling valves, one copy of which shall be posted at the oil-burning equipment and another at an
approved location that will be available in case of emergency.
After completing the installation, the installer shall instruct the
owner or operator in the proper operation of the equipment. The installer shall furnish the
owner or operator with the name and telephone number of persons to contact for technical information or assistance and routine or emergency services.
Working clearances between oil-fired appliances and electrical panelboards and equipment shall be in accordance with NFPA 70. Clearances between oil-fired equipment and oil supply
tanks shall be in accordance with NFPA 31.
Where connected to a fuel-oil piping
system, the maximum amount of fuel oil storage allowed outside above ground without additional protection shall be 660 gallons (2498 L). The storage of fuel oil above ground in quantities exceeding 660 gallons (2498 L) shall comply with NFPA 31.
One or more fuel oil storage tanks containing Class II or III combustible liquid shall be permitted in a building. The aggregate capacity of all tanks shall not exceed the following:
- 660 gallons (2498 L) in unsprinklered buildings, where stored in a tank complying with UL 80, UL 142 or UL 2085.
- 1,320 gallons (4996 L) in buildings equipped with an automatic sprinkler system in accordance with Section 903.3.1.1, where stored in a tank complying with UL 142.
- 3,000 gallons (11 356 L) where stored in protected above-ground tanks complying with UL 2085 and Section 5704.2.9.7 and the room is protected by an automatic sprinkler system in accordance with Section 903.3.1.1.
Tanks installed in accordance with
Section 603.3.2 shall be used only to supply fuel oil to fuel-burning equipment, generators or fire pumps installed in accordance with
Section 603.3.2.4. Connections between
tanks and equipment supplied by such
tanks shall be made using closed piping
systems.
Tanks exceeding 55-gallon (208 L) capacity or an aggregate capacity of 1,000 gallons (3785 L) that are not provided with integral
secondary containment shall be provided with spill containment sized to contain a release from the largest
tank.
The storage of fuel oil in underground storage
tanks shall comply with NFPA 31.
Portable unvented fuel-fired heating equipment shall be prohibited in occupancies in Groups A, E, I, R-1, R-2, R-3 and R-4 and ambulatory care facilities.
Exceptions:
- In one- and two-family dwellings portable unvented fuel-fired heaters, where approved and listed in accordance with UL 647.
- Portable outdoor gas-fired heating appliances in accordance with Section 603.4.2.
Unvented fuel-fired heating equipment shall not be located in, or obtain combustion air from, any of the following rooms or spaces: sleeping rooms, bathrooms, toilet rooms or storage closets.
Portable gas-fired heating appliances located outdoors shall be in accordance with Sections
603.4.2.1 through
603.4.2.3.4.
Portable outdoor gas-fired heating appliances shall be located in accordance with Sections
603.4.2.1.1 through
603.4.2.1.4.
The storage or use of portable outdoor gas-fired heating appliances is prohibited in any of the following locations:
- Inside of any occupancy where connected to the fuel gas container.
- Inside of tents, canopies and membrane structures.
On exterior balconies.
Exception: As allowed in Section 6.22 of NFPA 58.
Portable outdoor gas-fired heating appliances shall be located not less than 5 feet (1524 mm) from buildings.
Portable outdoor gas-fired heating appliances shall not be located beneath, or closer than 5 feet (1524 mm) to combustible decorations and combustible overhangs,
awnings, sunshades or similar combustible attachments to buildings.
Portable outdoor gas-fired heating appliances shall not be located within 5 feet (1524 mm) of
exits or
exit discharges.
Portable outdoor gas-fired heating appliances shall be installed and operated in accordance with Sections
603.4.2.2.1 through
603.4.2.2.4.
Only
listed and
approved portable outdoor gas-fired heating appliances utilizing a fuel gas
container that is integral to the appliance shall be used.
Portable outdoor gas-fired heating appliances shall be installed and maintained in accordance with the manufacturer's instructions.
Portable outdoor gas-fired heating appliances shall be equipped with a tilt or tip-over switch that automatically shuts off the flow of gas if the appliance is tilted more than 15 degrees (0.26 rad) from the vertical.
The heating element or combustion chamber of portable outdoor gas-fired heating appliances shall be permanently guarded so as to prevent accidental contact by persons or material.
Only
approved DOTn or ASME gas
containers shall be used.
Replacement of fuel gas
containers in portable outdoor gas-fired heating appliances shall not be conducted while the public is present.
The maximum individual capacity of gas
containers used in connection with portable outdoor gas-fired heating appliances shall not exceed 20 pounds (9 kg).
Heating appliances shall be
listed and shall comply with Sections
603.5.1 and
603.5.2.
The heating element or combustion chamber shall be permanently guarded so as to prevent accidental contact by persons or material.
Chimneys, incinerators, smokestacks or similar devices for conveying smoke or hot gases to the outer air and the stoves, furnaces, fireboxes or boilers to which such devices are connected, shall be maintained so as not to create a fire hazard.
Masonry chimneys that, upon inspection, are found to be without a flue liner and that have open
mortar joints which will
permit smoke or gases to be discharged into the building, or which are cracked as to be dangerous, shall be repaired or relined with a
listed chimney liner
system installed in accordance with the manufacturer's instructions or a flue lining
system installed in accordance with the requirements of the
International Building Code and appropriate for the intended class of
chimney service.
Metal chimneys that are corroded or improperly supported shall be repaired or replaced.
Existing chimney and vent connectors that are damaged, corroded or improperly supported shall be repaired or replaced.
The
fire code official is authorized to order that measures be taken to prevent the operation of any
existing stove, oven, furnace, incinerator, boiler or any other heat-producing device or appliance found to be defective or in violation of code requirements for
existing appliances after giving notice to this effect to any person,
owner, firm or
agent or operator in charge of the same. The
fire code official is authorized to take measures to prevent the operation of any device or appliance without notice when inspection shows the existence of an immediate fire hazard or when imperiling human life. The defective device shall remain withdrawn from service until all necessary repairs or
alterations have been made.
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 603.7) 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.
Residential incinerators shall be of an approved type.
Incinerators shall be equipped with an effective means for arresting sparks.
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.
Burning shall take place only during approved hours.
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.
In Group I-2 occupancies, the continued use of
existing flue-fed incinerators is prohibited.
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
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.
Identified electrical hazards shall be abated. Identified hazardous electrical conditions in permanent wiring shall be brought to the attention of the responsible code official. Electrical wiring, devices, appliances and other equipment that is modified or damaged and constitutes an electrical shock or fire hazard shall not be used.
Illumination shall be provided for service equipment areas, motor control centers and electrical panelboards.
A working space of not less than 30 inches (762 mm) in width, 36 inches (914 mm) in depth and 78 inches (1981 mm) in height shall be provided in front of electrical service equipment. Where the electrical service equipment is wider than 30 inches (762 mm), the working space shall be not less than the width of the equipment. Storage of materials shall not be located within the designated working space.
Exceptions:
- Where other dimensions are required or allowed by NFPA 70.
- Access openings into attics or under-floor areas that provide a minimum clear opening of 22 inches (559 mm) by 30 inches (762 mm).
Doors into electrical control panel rooms shall be marked with a plainly visible and legible sign stating ELECTRICAL ROOM or similar approved wording. The disconnecting means for each service, feeder or branch circuit originating on a switchboard or panelboard shall be legibly and durably marked to indicate its purpose unless such purpose is clearly evident. Where buildings or structures are supplied by more than one power source, markings shall be provided at each service equipment location and at all interconnected electric power production sources identifying all electric power sources at the premises in accordance with NFPA 70.
Multiplug adapters, such as cube adapters, unfused plug strips or any other device not complying with NFPA 70 shall be prohibited.
Relocatable power taps shall be of the polarized or grounded type, equipped with overcurrent protection, and shall be listed in accordance with UL 1363.
Relocatable power taps shall be directly connected to a permanently installed receptacle.
Relocatable power tap cords shall not extend through walls, ceilings, floors, under doors or floor coverings, or be subject to environmental or physical damage.
Extension cords and flexible cords shall not be a substitute for permanent wiring and shall be listed and
labeled in accordance with UL 817. Extension cords and flexible cords shall not be affixed to structures, extended through walls, ceilings or floors, or under doors or floor coverings, nor shall such cords be subject to environmental damage or physical impact. Extension cords shall be used only with portable appliances. Extension cords marked for
indoor use shall not be used outdoors.
Extension cords shall be plugged directly into an approved receptacle, power tap or multiplug adapter and, except for approved multiplug extension cords, shall serve only one portable appliance.
The ampacity of the extension cords shall be not less than the rated capacity of the portable appliance supplied by the cord.
Extension cords shall be maintained in good condition without splices, deterioration or damage.
Extension cords shall be grounded where serving grounded portable appliances.
Open junction boxes and open-wiring splices shall be prohibited. Approved covers shall be provided for all switch and electrical outlet boxes.
Electrical equipment and fixtures shall be tested and
listed by an
approved agency and installed and maintained in accordance with all instructions included as part of such listing.
Electrical motors shall be maintained free from excessive accumulations of oil, dirt, waste and debris.
Temporary wiring for electrical power and lighting installations is allowed for a period not to exceed 90 days. Temporary wiring methods shall meet the applicable provisions of NFPA 70.
Exception: Temporary wiring for electrical power and lighting installations is allowed during periods of construction, remodeling, repair or demolition of buildings, structures, equipment or similar activities.
Temporary wiring attached to a structure shall be attached in an approved manner.
Where not prohibited by other sections of this code, portable, electric space heaters shall be permitted to be used in all occupancies in accordance with Sections
604.10.1 through
604.10.5.
Only
listed and
labeled portable, electric space heaters shall be used.
Portable, electric space heaters shall be plugged directly into an approved receptacle.
Portable, electric space heaters shall not be plugged into extension cords.
Portable, electric space heaters shall not be operated within 3 feet (914 mm) of any combustible materials. Portable, electric space heaters shall be operated only in locations for which they are listed.
Where used in Group I-2 and
ambulatory care facilities, portable, electric space heaters shall be limited to those having a heating element that cannot exceed a temperature of 212°F (100°C), and such heaters shall only be used in nonsleeping staff and employee areas.
Abandoned cables in
plenums that are able to be accessed without causing damage, or requiring demolition to the building, shall be tagged for future use or shall be removed.
Where a
refrigerant other than ammonia is used, refrigeration
systems and the buildings in which such
systems are installed shall be in accordance with ASHRAE 15.
Refrigeration
systems using ammonia
refrigerant and the buildings in which such
systems are installed shall comply with IIAR-2 for
system design and installation and IIAR-7 for operating procedures. Decommissioning of ammonia refrigeration
systems shall comply with IIAR-8.
Refrigeration equipment and
systems having a
refrigerant circuit containing more than 220 pounds (100 kg) of Group A1 or 30 pounds (14 kg) of any other group
refrigerant shall be subject to periodic testing in accordance with
Section 605.6.1. Records of tests shall be maintained. Tests of emergency devices or
systems required by this chapter shall be conducted by persons trained and qualified in refrigeration
systems.
The following emergency devices or systems shall be periodically tested in accordance with the manufacturer's instructions and as required by the fire code official.
- Treatment and flaring systems.
- Valves and appurtenances necessary to the operation of emergency refrigeration control boxes.
- Fans and associated equipment intended to operate emergency ventilation systems.
- Detection and alarm systems.
Refrigeration units or
systems having a
refrigerant circuit containing more than 220 pounds (100 kg) of Group A1 or 30 pounds (14 kg) of any other group
refrigerant shall be provided with
approved emergency signs, charts and labels in accordance with NFPA 704. Hazard signs shall be in accordance with the
International Mechanical Code for the classification of
refrigerants listed therein.
A detector, or a sampling tube that draws air to a detector, shall be provided at an approved location where refrigerant from a leak is expected to accumulate. The system shall be designed to initiate audible and visible alarms inside of and outside each entrance to the refrigerating machinery room and transmit a signal to an approved location where the concentration of refrigerant detected exceeds the lesser of the following:
- The corresponding TLV-TWA values shown in the International Mechanical Code for the refrigerant classification.
- Twenty-five percent of the lower flammable limit (LFL).
Detection of a refrigerant concentration exceeding the upper detection limit or 25 percent of the lower flammable limit (LFL), whichever is lower, shall stop refrigerant equipment in the machinery room in accordance with Section 605.9.1.
Where flammable
refrigerants are used and compliance with
Section 1106 of the
International Mechanical Code is required, remote control of the mechanical equipment and appliances located in the machinery room as required by Sections
605.9.1 and
605.9.2 shall be provided at an approved location immediately outside the machinery room and adjacent to its principal entrance.
A clearly identified switch of the break-glass type or with an
approved tamper-resistant cover shall provide off-only control of
refrigerant compressors,
refrigerant pumps and normally closed
automatic refrigerant valves located in the machinery room. Additionally, this equipment shall be automatically shut off when the
refrigerant vapor concentration in the machinery room exceeds the vapor detector's upper detection limit or 25 percent of the LEL, whichever is lower.
A clearly identified switch of the break-glass type or with an approved tamper-resistant cover shall provide on-only control of the machinery room
ventilation fans.
Automatic crossover valves shall be arranged to automatically relieve excess
system pressure to a lower pressure
zone if the pressure in a high- or intermediate-pressure
zone rises to within 90 percent of the set point for emergency pressure relief devices.
Refrigeration
system zones that are connected to a higher pressure
zone by an
automatic crossover valve shall be designed to safely contain the maximum pressure that can be achieved by interconnection of the two
zones.
Operation of an
automatic crossover valve shall cause all compressors on the affected
system to immediately stop. Dedicated pressure-sensing devices located immediately adjacent to crossover valves shall be permitted as a means for determining operation of a valve. To ensure that the
automatic crossover valve
system provides a redundant means of stopping compressors in an overpressure condition, high-pressure cutout sensors associated with compressors shall not be used as a basis for determining operation of a crossover valve.
The lowest pressure
zone in a refrigeration
system shall be provided with a dedicated means of determining a rise in
system pressure to within 90 percent of the set point for emergency pressure relief devices. Activation of the overpressure sensing device shall cause all compressors on the affected
system to immediately stop.
Flammable and combustible materials shall not be stored in machinery rooms for refrigeration systems having a refrigerant circuit containing more than 220 pounds (100 kg) of Group A1 or 30 pounds (14 kg) of any other group refrigerant. Storage, use or handling of extra refrigerant or refrigerant oils shall be as required by Chapters 50, 53, 55 and 57.
Exception: This provision shall not apply to spare parts, tools and incidental materials necessary for the safe and proper operation and maintenance of the system.
Discharge piping and devices connected to the discharge side of a fusible plug or rupture member shall have provisions to prevent plugging the pipe in the event the fusible plug or rupture member functions.
Systems containing more than 6.6 pounds (3 kg) of flammable
refrigerants having a density equal to or greater than the density of air shall discharge vapor to the atmosphere only through an
approved treatment
system in accordance with
Section 605.12.5 or a flaring
system in accordance with
Section 605.12.6.
Systems containing more than 6.6 pounds (3 kg) of flammable
refrigerants having a density less than the density of air shall be permitted to discharge vapor to the atmosphere provided that the point of discharge is located outside of the structure at not less than 15 feet (4572 mm) above the adjoining grade level and not less than 20 feet (6096 mm) from any window,
ventilation opening or
exit.
Systems containing more than 6.6 pounds (3 kg) of ammonia refrigerant shall discharge vapor to the atmosphere in accordance with one of the following methods:
- Directly to atmosphere where the fire code official determines, on review of an engineering analysis prepared in accordance with Section 104.7.2, that a fire, health or environmental hazard would not result from atmospheric discharge of ammonia.
- Through an approved treatment system in accordance with Section 605.12.5.
- Through a flaring system in accordance with Section 605.12.6.
- Through an approved ammonia diffusion system in accordance with Section 605.12.7.
- By other approved means.
Exception: Ammonia/water absorption systems containing less than 22 pounds (10 kg) of ammonia and for which the ammonia circuit is located entirely outdoors.
Treatment
systems shall be designed to reduce the allowable discharge concentration of the
refrigerant gas to not more than 50 percent of the IDLH at the point of exhaust. Treatment
systems shall be in accordance with
Chapter 60.
Flaring
systems for incineration of flammable
refrigerants shall be designed to incinerate the entire discharge. The products of
refrigerant incineration shall not pose health or environmental hazards. Incineration shall be
automatic upon initiation of dis-charge, shall be designed to prevent blowback and shall not expose structures or materials to threat of fire. Standby fuel, such as LP-gas, and standby power shall have the capacity to operate for one and one-half the required time for complete incineration of
refrigerant in the
system. Standby electrical power, where required to complete the incineration process, shall be in accordance with
Section 1203.
Ammonia diffusion
systems shall include a
tank containing 1 gallon of water for each pound of ammonia (8.3 L of water for each 1 kg of ammonia) that will be released in 1 hour from the largest relief device connected to the discharge pipe. The water shall be prevented from freezing. The discharge pipe from the pressure relief device shall distribute ammonia in the bottom of the
tank, but not lower than 33 feet (10 058 mm) below the maximum
liquid level. The
tank shall contain the volume of water and ammonia without overflowing.
Exhaust from mechanical ventilation systems serving refrigeration machinery rooms containing flammable, toxic or highly toxic refrigerants, other than ammonia, capable of exceeding 25 percent of the LFL or 50 percent of the IDLH shall be equipped with approved treatment systems to reduce the discharge concentrations to those values or lower.
Exception: Refrigeration systems containing Group A2L complying with Section 605.17.
A record of
refrigerant quantities brought into and removed from the premises shall be maintained.
Where refrigerant of Groups A2, A3, B2 and B3, as defined in the International Mechanical Code, are used, refrigeration machinery rooms shall conform to the Class I, Division 2 hazardous location classification requirements of NFPA 70.
Machinery rooms with systems containing Group A2L refrigerants shall comply with Sections 605.17.1 through 605.17.3.
Exception: Machinery rooms conforming to the Class 1, Division 2 hazardous location classification requirements of NFPA 70.
An emergency ventilation system shall be provided at the minimum exhaust rate specified in ASHRAE 15 or Table 605.17.2. Shut down of the emergency ventilation system shall be by manual means.
TABLE [M] 605.17.2
MINIMUM EXHAUST RATE
REFRIGERANT | Q (m3/sec) | Q (cfm) |
R32 | 15.4 | 32,600 |
R143a | 13.6 | 28,700 |
R444A | 6.46 | 13,700 |
R444B | 10.6 | 22,400 |
R445A | 7.83 | 16,600 |
R446A | 23.9 | 50,700 |
R447A | 23.8 | 50,400 |
R451A | 7.04 | 15,000 |
R451B | 7.05 | 15,000 |
R1234yf | 7.80 | 16,600 |
R1234ze(E) | 5.92 | 12,600 |
The point of discharge to the atmosphere shall be located outside of the structure at not less than 15 feet (4572 mm) above the adjoining grade level and not less than 20 feet (6096 mm) from any window,
ventilation opening or
exit.
Existing elevators with a travel distance of 25 feet (7620 mm) or more shall comply with the requirements in
Chapter 11. New elevators shall be provided with Phase I emergency recall operation and Phase II emergency in-car operation in accordance with ASME A17.1/CSA B44.
In buildings and structures where standby power is required or furnished to operate an elevator, standby power shall be provided in accordance with
Section 1203. Operation of the
system shall be in accordance with Sections
606.2.1 through
606.2.4.
Standby power shall be manually transferable to all elevators in each bank.
Where only one elevator is installed, the elevator shall automatically transfer to standby power within 60 seconds after failure of normal power.
Where two or more elevators are controlled by a common operating
system, all elevators shall automatically transfer to standby power within 60 seconds after failure of normal power where the standby power source is of sufficient capacity to operate all elevators at the same time. Where the standby power source is not of sufficient capacity to operate all elevators at the same time, all elevators shall transfer to standby power in sequence, return to the designated landing and disconnect from the standby power source. After all elevators have been returned to the designated level, not less than one elevator shall remain operable from the standby power source.
Where standby power is connected to elevators, the machine room
ventilation or air conditioning shall be connected to the standby power source.
An approved pictorial sign of a standardized design shall be posted adjacent to each elevator call station on all floors instructing occupants to use the exit stairways and not to use the elevators in case of fire. The sign shall read: IN FIRE EMERGENCY, DO NOT USE ELEVATOR. USE EXIT STAIRS.
Where occupant evacuation elevators are provided in accordance with
Section 3008 of the
International Building Code, occupant evacuation elevator lobbies shall be maintained free of storage and furniture.
Keys for the elevator car doors and fire-fighter service keys shall be kept in an approved location for immediate use by the fire department.
Buildings with elevators equipped with Phase I emergency recall, Phase II emergency in-car operation, or a fire service access elevator shall be equipped to operate with a standardized fire service elevator key approved by the fire code official.
Exception: The owner shall be permitted to place the building's nonstandardized fire service elevator keys in a key box installed in accordance with Section 506.1.2.
Standardized fire service elevator keys shall comply with all of the following:
- All fire service elevator keys within the jurisdiction shall be uniform and specific for the jurisdiction. Keys shall be cut to a uniform key code.
- Fire service elevator keys shall be of a patent-protected design to prevent unauthorized duplication.
- Fire service elevator keys shall be factory restricted by the manufacturer to prevent the unauthorized distribution of key blanks. Uncut key blanks shall not be permitted to leave the factory.
- Fire service elevator keys subject to these rules shall be engraved with the words "DO NOT DUPLICATE."
A person shall not duplicate a standardized fire service elevator key or issue, give, or sell a duplicated key unless in accordance with this code.
The building
owner shall provide up to three standardized fire service elevator keys where required by the
fire code official, upon installation of a standardized fire service key switch or switches in the building.
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:
- 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 International 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, 507.4 and 507.5 of the International Mechanical Code.
- Factory-built commercial cooking recirculating systems that are listed and labeled in accordance with UL 710B, and installed in accordance with Section 304.1 of the International 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, 507.4 and 507.5 of the International Mechanical Code. Spaces in which such systems are located shall be considered to be kitchens and shall be ventilated in accordance with Table 403.3.1.1 of the International Mechanical Code. For the purpose of determining the floor area required to be ventilated, each individual appliance shall be considered as occupying not less than 100 square feet (9.3 m2).
- Where cooking appliances are equipped with integral down-draft exhaust systems and such appliances and exhaust systems are listed and labeled for the application in accordance with NFPA 96, a hood shall not be required at or above them.
- A Type I hood shall not be required for an electric cooking appliance where an approved testing agency provides documentation that the appliance effluent contains 5 mg/m3 or less of grease when tested at an exhaust flow rate of 500 cfm (0.236 m3/s) in accordance with UL 710B.
Commercial cooking
systems shall be operated and maintained in accordance with Sections
607.3.1 through
607.3.4.
The
ventilation system in connection with
hoods shall be operated at the required rate of air movement, and grease filters listed and
labeled in accordance with UL 1046 shall be in place where equipment under a kitchen grease
hood is used.
Where grease extractors are installed, they shall be operated when the commercial-type cooking equipment is used.
Hoods, grease-removal devices, fans, ducts and other appurtenances shall be cleaned at intervals as required by Sections
607.3.3.1 through
607.3.3.3.
Hoods, grease-removal devices, fans, ducts and other appurtenances shall be inspected at intervals specified in Table 607.3.3.1 or as approved by the fire code official. Inspections shall be completed by qualified individuals.
TABLE 607.3.3.1
COMMERCIAL COOKING SYSTEM INSPECTION FREQUENCY
TYPE OF COOKING OPERATIONS | FREQUENCY OF INSPECTION
|
High-volume cooking operations such as 24- hour cooking, charbroiling or wok cooking | 3 months |
Low-volume cooking operations such as places of religious worship, seasonal businesses and senior centers | 12 months |
Cooking operations utilizing solid fuelburning cooking appliances | 1 month |
All other cooking operations | 6 months |
If during the inspection it is found that
hoods, grease-removal devices, fans, ducts or other appurtenances have an accumulation of grease, such components shall be cleaned in accordance with ANSI/IKECA C10.
Records for inspections shall state the individual and company performing the inspection, a description of the inspection and when the inspection took place. Records for cleanings shall state the individual and company performing the cleaning and when the cleaning took place. Such records shall be completed after each inspection or cleaning and maintained.
When a commercial kitchen
hood or duct
system is inspected, a tag containing the service provider name, address, telephone number and date of service shall be provided in a conspicuous location. Prior tags shall be covered or removed.
Gas-fired
commercial cooking appliances installed on casters and appliances that are moved for cleaning and sanitation purposes shall be connected to the piping
system with an appliance connector listed as complying with ANSI Z21.69. The commercial cooking appliance connector installation shall be configured in accordance with the manufacturer's installation instructions. Movement of appliances with casters shall be limited by a restraining device installed in accordance with the connector and appliance manufacturer's instructions.
Storage of cooking oil (grease) in commercial cooking operations utilizing above-ground
tanks with a capacity greater than 60 gal (227 L) installed within a building shall comply with Sections
608.2 through
608.7 and NFPA 30. For purposes of this section, cooking oil shall be classified as a Class IIIB
liquid unless otherwise determined by testing.
Metallic cooking oil storage
tanks shall be listed in accordance with UL 142 or UL 80, and shall be installed in accordance with the
tank manufacturer's instructions.
Nonmetallic cooking oil storage
tanks shall be listed in accordance with UL 2152 and shall be installed in accordance with the
tank manufacturer's instructions.
Tank capacity shall not exceed 200 gallons (757 L) per
tank.
Cooking oil storage
system components shall include but are not limited to piping, connections, fittings, valves, tubing, hose, pumps, vents and other related components used for the transfer of cooking oil, and are permitted to be of either metallic or nonmetallic construction.
The design, fabrication and assembly of
system components shall be suitable for the working pressures, temperatures and structural stresses to be encountered by the components.
System components that come in contact with heated cooking oil shall be rated for the maximum operating temperatures expected in the
system.
Normal and emergency venting shall be provided for cooking oil storage
tanks.
Normal vents shall be located above the maximum normal
liquid line, and shall have a minimum effective area not smaller than the largest filling or withdrawal connection. Normal vents shall be permitted to vent inside the building.
Emergency relief vents shall be located above the maximum normal
liquid line, and shall be in the form of a device or devices that will relieve excessive internal pressure caused by an exposure fire. For nonmetallic
tanks, the emergency relief vent shall be allowed to be in the form of construction. Emergency vents shall be permitted to vent inside the building.
Electrical equipment used for heating cooking oil in cooking oil storage
systems shall be listed to UL 499 and shall comply with NFPA 70. Use of electrical immersion heaters shall be prohibited in nonmetallic
tanks.
Electrical equipment used for the operation of cooking oil storage
systems shall comply with NFPA 70.
Hyperbaric
facilities shall be inspected, tested and maintained in accordance with NFPA 99.
Records shall be maintained of all testing and repair conducted on the hyperbaric chamber and associated devices and equipment. Records shall be available to the
fire code official.