22.214.171.124 Grease filters shall be listed and constructed of steel or listed equivalent material
126.96.36.199 Grease filters shall be rigid construction that will not distort or crush under normal operation, handling, and cleaning conditions.
188.8.131.52 Grease filters shall be arranged so that all exhaust air passes through the grease filters.
7.3.1 Openings shall be provided at the sides or at the top of the duct, whichever is more accessible, and at changes of direction.
184.108.40.206 If not easily accessible from a 3 m (10 ft) stepladder, opening on horizontal grease duct systems shall be provided with safe access and a work platform.
220.127.116.11 Approved upblast fans with motors surrounded by the airstream shall be hinged, supplied with flexible weatherproof electrical cable and service hold-open retainers, and listed for this use.
18.104.22.168.1 Upblast fans shall be supplied with an access opening of a minimum 76 mm by 127 mm (3 in. by 5 in.) or a circular diameter of 101 mm (4 in.) on the curvature of the outer fan housing to allow for cleaning and inspection of the fan blades.
11.6.10 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.
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