Kitchen Exhaust Duct Specification

Pdf printable specification list 1.

Kitchen exhaust duct specification. 2 specification for kitchen ventilation systems option b the second option is for the tenant to design their system in accordance with the land securities approved design principles as set out in section 4 2 2 of this document. Kitchen ventilation design guide. Deposition velocity of polydispersed particles on the internal surfaces of a horizontal square exhaust duct vs. A mmad 4 3µm isothermal conditions b mmad 1 6 µm isothermal conditions c mmad 1 6 µm exhaust air temperature 120 f 48 9 c d mmad 1 6 µm exhaust air temperature 150 f 65 6 c.

Products shall be etl listed to ul 1978 and can ulc s662 for venting air and grease vapors from commercial cooking operations as described in nfpa 96. How to choose install a kitchen vent fan kitchens and bathrooms are key sources of indoor moisture and other pollutants. Course content introduction ventilation is the single most important factor in the design construction and operation of commercial kitchens. Exhaust ductwork should be stainless steel below the kitchen ceiling and either stainless steel or aluminum above the ceil ing.

All interior ductwork air flow portions of fans and hood areas to be left completely free of grease and carbon all ductwork cleaned down to bare metal unless otherwise noted. All kitchen extract will be to the pr en standard 15871 and tested to en 1366 1 and must be insulated to the same period of time as the compartment through which it passes as required in dw172 2018 2 nd edition. For kitchen extraction ductwork the suggested specification can be written as follows. Whether it s a straight and vertical shot from stovetop to rooftop or there are multiple twists and turns involved in the ductwork kitchen exhaust cleaners must be able to work with any system as multipurpose facilities and mixed use developments become increasingly popular kitchen exhaust systems must adapt to a.

The exhaust duct should be liquid tight and pitch back toward the dishwasher. Fundamentals of kitchen ventilation a. Kitchen exhaust systems can be as different as the kitchens they serve. Without adequate ventilation and an ample supply of clean makeup air no kitchen will operate efficiently.

Connect the operation of the dishwasher exhaust fan to the dishwasher control panel. Grease duct specification furnish single wall factory built grease duct for use with type i kitchen hoods which conforms to the requirements of nfpa 96. Kitchens produce particulates and atomized grease from cooking and with a gas range they also produce combustion by products including nitrogen dioxide and carbon monoxide.