How are industrial fryers (potato chip, corn chip, pork rind, etc.) or large donut fryers protected?
UL will not allow multiple nozzle protection for fryers that exceed 6 sq. ft. (864 sq. in.)* unless the fire suppression system manufacturer obtains a listing for the protection of the specific appliance brand and model number of the fryer (i.e., Krispy Kreme Fryers – Models 150 D/H, 270 D/H, 600 D/H, and 1000 D/H). As an alternative, an engineered carbon dioxide system may be used when designed in accordance with NFPA 12. Under certain conditions, a PIRANHA wet chemical system may be used. Contact Ansul Technical Services for assistance.) *NOTE: This limitation does not apply when multiple nozzle protection is used for tilt skillets and braising pans. (See question number one.
