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509.0 Grease Removal Devices in Hoods
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509.1 Grease Removal Devices
Listed grease filters or other listed grease removal devices intended for use with commercial cooking operations shall be provided. Listed grease filters and grease removal devices that are removable, but not an integral component of a specific listed exhaust hood, shall be listed in accordance with UL 1046. [NFPA 96:6.1.1, 6.1.2]
509.1.1 Grease Filters, Mesh-Type
509.2.1 Vertical Distance
Where grease removal devices are used in conjunction with charcoal or charcoal-type broilers, including gas or electrically heated charbroilers, a vertical distance of not less than 4 feet (1219 mm) shall be maintained between the lower edge of the grease removal device and the cooking surface. [NFPA 96:18.104.22.168]
- For cooking equipment without exposed flame and where flue gases bypass grease removal devices, the minimum vertical distance shall be permitted to be reduced to not less than 6 inches (152 mm). [NFPA 96:22.214.171.124]
- Where a grease removal device is listed for separation distances less than those required in Section 509.2 and Section 509.2.1, the listing requirements shall be permitted. [NFPA 96:126.96.36.199]
- Grease removal devices supplied as part of listed hood assemblies shall be installed in accordance with the terms of the listing and the manufacturer's installation instructions. [NFPA 96:188.8.131.52]
509.2.2 Grease Removal Device Protection
Where the distance between the grease removal device and the appliance flue outlet (heat source) is less than 18 inches (457 mm), grease removal devices shall be protected from combustion gas outlets and from direct flame impingement occurring during normal operation of cooking appliances producing high flue gas temperatures. [NFPA 96:184.108.40.206]
509.2.2.2 Size and Location
509.2.3 Grease Filters
509.2.3.3 Angled Installation
509.2.4 Grease Drip Trays
509.2.4.1 Size and Pitch
509.2.5 Grease Filter Orientation
Related Code Sections
509.0 Exhaust Systems, Grease Removal Devices in Hoods
filters and grease removal devices that are removable, but not an integral component of a specific listed exhaust hood, shall be listed in accordance ...
509.2.2 Exhaust Systems, Grease Removal Device Protection
Where the distance between the grease removal device and the appliance flue outlet (heat source) is less than 18 inches (457 mm), grease removal ...
509.2.4 Exhaust Systems, Grease Drip Trays
Grease filters shall be equipped with a grease drip tray beneath their lower edges. [NFPA 96:220.127.116.11 ...
509.2.5 Exhaust Systems, Grease Filter Orientation
Grease filters that require a specific orientation to drain grease shall be clearly so designated, or the hood shall be constructed so that filters ...