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SECTION I—GENERAL INFORMATION
<br /> • UL EX.5174 10-31-97 Page 1-1
<br /> DESIGN AND APPLICATION DEFINITION OFTERMS
<br /> The PIRANHA.M Restaurant Fire Suppression System is designed Actuation Gas Line: Piping from the ANSUL AUTOMAN
<br /> to provide fire protection for restaurant cooking appliances, hoods, Regulated Release Assembfy which supplies nitrogen gas pres-
<br /> and ducts.It is a pre-engineered group of inechanical and electri- sure to the Regulated Actuator Assembly for multiple-tank system
<br /> cal components for installation by an authorized Ansul distributor actuation.
<br /> or OEM (original equipment manufacturer) The basic system con- Agent Tank:A pressure vessel containing the PRX liquid agent.
<br /> sists of an ANSUL AUTOMAN regulated release assembly which
<br /> includes a regulated release mechanism, an agenUwater valve, ANSUL AUTOMAN Regulated Release Assembly (Electrical):
<br /> and test outlet. One of three liquid agent storage tank sizes, An assembly which contains the regulated release mechanism,
<br /> ordered separately, will be housed within the release enclosure. water flow vaive, anti-siphon vacuum breaker, water pressure test
<br /> Nozzles, detectors, cartridges, liquid agent, fusible links, pulley outlet, expeliant gas hose, solenoid, and electric switch within a
<br /> tees, and pulley elbows are supplied in separate packages in the metal enclosure. The enclosure contains knockouts to facilitate
<br /> quantities needed for each fire suppression system arrangement. component hookups.
<br /> The system provides automatic actuation, or it can be actuated ANSUL AUTOMAN Regulated Release Assembly (Mechani-
<br /> manually through a remote manual pull station. Shutdown of fuel cal): An assembly which contains the regulated release mecha-
<br /> and power to all appliances located under protected ventilating nism, water flow valve, anti-siphon vacuum breaker, water pres-
<br /> equipment is required upon system actuation. sure test outlet, agent tank, and expellant gas hose within a metal
<br /> Additional equipment includes. remote manual pull station, enclosure.The enclosure contains knockouts to facilitate compo-
<br /> mechanical and electrical gas valves,pressure switches,and elec- nent hookups.
<br /> trical switches for automatic equipment and gas line shut-off Anti-Siphon Vacuum Breaker: A device located in the
<br /> Accessories can be added,s;�ch as alarms,���arnirg lights, etc.,to AUTOMAN release assembly and the regulated actuator assem-
<br /> installations where required. biy which is designed io prevent back-siphonage of possibie coni-
<br /> The PIRANHA system suppresses fire by spraying the plenum aminated water into a potable water supply.
<br /> area, the filters, cooking surfaces, and the exhaust duct system Authority Having Jurisdiction:The"authority having jurisdiction"
<br /> with a predetermined flow rate of PRXrM Liquid Fire Suppressant. is the organization,office, or individual responsible for"approving"
<br /> When the liquid agent is discharged onto a cooking appliance fire, equipment, an installation, or a procedure The phrase "Authority
<br /> it cools the grease surface, and reacts with the hot grease forming Having Jurisdiction"is used in a broad manner since jurisdictions
<br /> a layer of soap-like foam on the surface of the fat.This layer acts and "approval" agencies vary as do their responsibilities. Where
<br /> as a barrier between the hot grease and the atmosphere, thus public safety is primary, the"authority having jurisdiction"may be
<br /> heiping to prevent the escape of combustible vapors. a federal, state, locai, or other regional department or individual
<br /> The system is designed as a hybrid (agent and water) system. such as a fire chief, fire marshal, chief of a fire prevention bureau,
<br /> Upon actuation, agent is discharged onto the hazard area. labor department, health department, building official, electrical
<br /> Immediately following agent discharge, the internal water valve inspector, or others having statutory authority For insurance pur-
<br /> changes position and allows water to flow onto the same hazard Poses, an insurance company representative may be the"author-
<br /> areas,continually refurbishing the foam blanket and aiding in cool- ity having jurisdiction."In many circumstances the property owner
<br /> ing the hot appliance. or his designated agent assumes the role of the"authority having
<br /> jurisdiction;" at government installations, the commanding officer
<br /> Exhaust fans in the ventilating system should be left on The forced or departmental official may be the"authority having jurisdiction:'
<br /> draft of these fans assists the movement of the liquid agent g�ow-Off Cap:A cap which covers the end of the nozzle tip and
<br /> through the ventilating system, thus aiding in the fire suppression prevents grease from plugging the nozzle orifice.
<br /> process. These fans also provide a cooling effect in the plenum
<br /> and duct after the fire suppression system has been discharged. Bull Tee:A bull tee is defined as a tee positioned in the system so
<br /> The system is UL listed with or without fan operation. that the flow enters the center inlet of the tee and exits 90°out both
<br /> It is also recommended that make up or supply air fans, integral to side outlets.
<br /> the exhaust hood(s) being protected, should be shut down upon Bursting Disc: A disc installed in the tank adaptor which elimi-
<br /> system actuation nates the siphoning of the agent up the pipe during extreme tem-
<br /> perature variations.
<br /> UL LISTING Cartridge: A sealed, steel pressure vessel containing nitrogen
<br /> The PIRANHA Restaurant Fire Suppression System has been gas used to pressurize the agent tank.
<br /> tested and is listed by Underwriters Laboratories, Inc. as a pre- Conduit Offset Assembly: A pre-formed piece of conduit which
<br /> engineered system. These tests require extinguishment of fires can be installed between the Ansul regulated release and the con-
<br /> which are initiated in deep fat fryers,griddles,char-broilers,upright duit to allow the wire rope for the detection, gas valve and remote
<br /> broilers, chain-broilers, woks, ranges, filters, plenum chambers, manual pull stafion to be installed in a more convenient manner
<br /> hoods, and ducts after pre-loading each appliance with a pre-
<br /> scribed amount of cooking grease Each fire is allowed to progress Continuous System: A continuous distribution piping system is
<br /> to maximum intensiry before the fire suppression system is actu- one that does not include a bull tee between the agent tank and
<br /> ated. the first nozzle.
<br /> Cooking Appliance: Includes fryers, griddles, woks, ranges,
<br /> upright broilers, salamander broilers, chain broilers, natural char-
<br /> coal broilers, or char-broilers (electric, lava rock, gas-radiant, or
<br /> mesquite)
<br />
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