Exhaust systems shall be operated whenever cooking
equipment is turned on. [96:12.1.1]
50.6.1.2
Filter-equipped exhaust systems shall not be operated
with filters removed. [96:12.1.2]
50.6.1.3
Openings provided for replacing air exhausted
through ventilating equipment shall not be restricted by covers, dampers, or any other means that would reduce the operating
efficiency of the exhaust system. [96:12.1.3]
50.6.1.4*
Instructions shall be provided to new employees on hiring and to all employees annually on the use of portable fire extinguishers and the manual actuation of the fire-extinguishing system. [96:12.1.4]
50.6.1.4.1
Responsibility for compliance with 50.6.1.4 shall be
that of management of the commercial cooking operation.
[96:12.1.4.1]
50.6.1.4.2
Records of compliance with 50.6.1.4 shall be maintained and shall be available to the AHJ. [96:12.1.4.2]
50.6.1.4.3
Instructions for manually operating the fire-extinguishing system shall be posted conspicuously in the kitchen and shall be reviewed with employees by the management. [96:12.1.4.3]
50.6.1.5
Listed exhaust hoods shall be operated in accordance
with the terms of their listings and the manufacturer's instructions. [96:12.1.5]
50.6.1.6
Cooking equipment shall not be operated while its
fire-extinguishing system or exhaust system is nonoperational
or impaired. [96:12.1.6]
50.6.1.6.1
Where the fire-extinguishing system or exhaust
system is nonoperational or impaired, the system shall be
tagged as noncompliant, the system owner or the owner's
representative shall be notified in writing of the impairment,
and, where required, the AHJ shall be notified. [96:12.1.6.1]
50.6.1.7
Secondary filtration and pollution control equipment
shall be operated in accordance with the terms of its listing and
the manufacturer's recommendations. [96:12.1.7]
50.6.1.7.1
The requirement of 50.6.1.7 shall not apply to
mobile and temporary cooking operations. [96:12.1.7.1]
50.6.1.8
Inspection and maintenance of "other equipment" as
allowed in 9.3.1 of NFPA 96 shall be conducted by properly
trained and qualified persons at a frequency determined by the
manufacturer's instructions or the equipment listing.
[96:12.1.8]
50.6.2 Inspection, Testing, and Maintenance of Fire-Extinguishing Systems
50.6.2.1*
Maintenance of the fire-extinguishing systems and listed exhaust hoods containing a constant or fire-activated water system that is listed to extinguish a fire in the grease removal devices, hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, and certified person(s) acceptable to the AHJ at least every 6 months. [96:12.2.1]
50.6.2.1.1
The requirement of 50.6.2.1 shall not apply to
mobile and temporary cooking operations. [96:12.2.1.1]
50.6.2.2*
All actuation and control components, including
remote manual pull stations, mechanical and electrical devices,
detectors, and actuators, shall be tested for proper operation
during the inspection in accordance with the manufacturer's
procedures. [96:12.2.2]
50.6.2.3
The specific inspection and maintenance requirements of the extinguishing systemstandards as well as the
applicable installation and maintenance manuals for the listed
system and service bulletins shall be followed. [96:12.2.3]
50.6.2.4*
Fusible links of the metal alloy type and automatic
sprinklers of the metal alloy type shall be replaced at least semiannually. [96:12.2.4]
50.6.2.5
The year of manufacture and the date of installation
of the fusible links shall be marked on the system inspection
tag. [96:12.2.5]
50.6.2.5.1
The tag shall be signed or initialed by the installer.
[96:12.2.5.1]
50.6.2.5.2
The fusible links shall be destroyed when removed.
[96:12.2.5.2]
50.6.2.6
Detection devices that are bulb-type automatic sprinklers and fusible links other than the metal alloy type shall be
examined and cleaned or replaced annually. [96:12.2.6]
50.6.2.7
Fixed temperature-sensing elements other than the
fusible metal alloy type shall be permitted to remain continuously in service, provided they are inspected and cleaned or
replaced if necessary in accordance with the manufacturer's
instructions, every 12 months or more frequently to ensure
proper operation of the system. [96:12.2.7]
50.6.2.8
Where required, certificates of inspection and maintenance shall be forwarded to the AHJ. [96:12.2.8]
50.6.2.8.1
Records, including certificates of inspection and
maintenance, shall be permitted to be forwarded to or shared
with the AHJ either by hard copy or electronically. [96:12.2.8.1]
50.6.3 Inspection of Fire Dampers
50.6.3.1
The requirements in 50.6.3 shall not apply to mobile
and temporary cooking operations. [96:12.3.1]
50.6.3.2
Actuation components for fire dampers shall be
inspected for proper operation in accordance with the manufacturer's listed procedures. [96:12.3.2]
50.6.3.3 Replacement of Fusible Links
50.6.3.3.1
Fusible links on fire damper assemblies shall be replaced at least semiannually or more frequently as necessary. [96:12.3.3.1]
50.6.3.3.2
Replacement shall be made by a certified person
acceptable to the AHJ. [96:12.3.3.2]
50.6.3.4* Documentation Tag
50.6.3.4.1
The year of manufacture and the date of installation of the fusible links shall be documented. [96:12.3.4.1]
50.6.3.4.2
The tag shall be signed or initialed by the installer.
[96:12.3.4.2]
50.6.4* Inspection for Grease Buildup
The entire exhaust system shall be inspected for grease buildup by a properly trained, qualified, and certified person(s) acceptable to the AHJ and in accordance with Table 50.6.4. [96:12.4]
Table 50.6.4 Schedule of Inspection for Grease Buildup
*High-volume cooking operations include 24-hour cooking, charbroiling, and wok cooking.
†Low-volume cooking operations include churches, day camps, seasonal businesses, and senior centers.
[96:Table 12.4]
50.6.5 Inspection, Testing, and Maintenance of Listed Hoods Containing Mechanical, Water Spray, or Ultraviolet Devices
Listed hoods containing mechanical or fire-actuated dampers,
internal washing components, or other mechanically operated
devices shall be inspected and tested by properly trained, qualified, and certified persons every 6 months or at frequencies
recommended by the manufacturer in accordance with their
listings. [96:12.5]
50.6.6 Cleaning of Exhaust Systems
50.6.6.1
If upon inspection, the exhaust system is found to be contaminated with deposits from grease-laden vapors, the contaminated portions of the exhaust system shall be cleaned by a properly trained qualified, and certified person(s) acceptable to the AHJ. [96:12.6.1]
50.6.6.1.1
A measurement system of deposition shall be established to trigger a need to clean when the exhaust system is
inspected at the frequencies in Table 50.6.4. [96:12.6.1.1]
50.6.6.1.1.1
Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to remove combustible contaminants to a minimum of 0.002 in. (50 µm). [96:12.6.1.1.1]
50.6.6.1.1.2
A grease depth gauge comb, as shown in Figure 50.6.6.1.1.2 shall be placed upon the surface to measure grease depth. [96:12.6.1.1.2]
Where a measured depth of 0.078 in. (2000 µm)
is observed, the surfaces shall be cleaned in accordance with
50.6.6.1. [96:12.6.1.1.3]
50.6.6.1.1.4
Where a measured depth of 0.125 in. (3175 µm)
is observed in a fan housing, the surfaces shall be cleaned in
accordance with 50.6.6.1. [96:12.6.1.1.4]
50.6.6.2
Hoods, grease removal devices, fans, ducts, and other
appurtenances shall be cleaned to remove combustible
contaminants prior to surfaces becoming heavily contaminated
with grease or oily sludge. [96:12.6.2]
50.6.6.3
At the start of the cleaning process, electrical switches
that could be activated accidentally shall be locked out.
[96:12.6.3]
50.6.6.4
Components of the fire suppression system shall not
be rendered inoperable during the cleaning process.
[96:12.6.4]
50.6.6.5
Fire-extinguishing systems shall be permitted to be
rendered inoperable during the cleaning process where serviced by properly trained and qualified persons. [96:12.6.5]
50.6.6.6
Flammable solvents or other flammable cleaning aids
shall not be used. [96:12.6.6]
50.6.6.7
Cleaning chemicals shall not be applied on fusible
links or other detection devices of the automatic extinguishing
system. [96:12.6.7]
50.6.6.8
After the exhaust system is cleaned, it shall not be
coated with powder or other substance. [96:12.6.8]
50.6.6.9
When cleaning procedures are completed, all access
panels (doors) and cover plates shall be restored to their
normal operational condition. [96:12.6.9]
50.6.6.10
When an access panel is removed, a service company
label or tag preprinted with the name of the company and
giving the date of inspection or cleaning shall be affixed near
the affected access panels. [96:12.6.10]
50.6.6.11
Dampers and diffusers shall be positioned for
proper airflow. [96:12.6.11]
50.6.6.12
When cleaning procedures are completed, all electrical switches and system components shall be returned to an
operable state. [96:12.6.12]
50.6.6.13
When an exhaust system is inspected or cleaned, a
certificate showing the name of the servicing company, the
name of the person performing the work, and the date of
inspection or cleaning shall be maintained on the premises.
[96:12.6.13]
50.6.6.14
After cleaning or inspection is completed, the
exhaust cleaning company and the person performing the
work at the location shall provide the owner of the system with
a written report that also specifies areas that were inaccessible
or not cleaned. [96:12.6.14]
50.6.6.15
Where required, certificates of inspection and cleaning and reports of areas not cleaned shall be submitted to the
AHJ. [96:12.6.15]
50.6.6.16
Metal containers used to collect grease drippings
shall be inspected or emptied at least weekly. [96:12.6.16]
50.6.7 Cooking Equipment Maintenance
50.6.7.1
Inspection and servicing of the cooking equipment
shall be made at least annually by properly trained and qualified persons. [96:12.7.1]
50.6.7.2
Cooking equipment that collects grease below the
surface, behind the equipment, or in cooking equipment flue
gas exhaust, such as griddles, deep-fat fryers, or charbroilers,
shall be inspected and, if found with grease accumulation,
cleaned by a properly trained, qualified, and certified
person(s) acceptable to the AHJ. [96:12.7.2]
] Inspection and maintenance of "other equipment" allowed in 9.3.1 of NFPA 96 shall be conducted by properly trained and qualified persons at a frequency ...
