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December 2008 Section 3 ZD Design Page 3-44 Am ere x Restaurant Fire Suppression System (EX 4658) ZONE DEFENSE APPLIANCE PROTECTION ZONE OF PROTECTION NFPA 96— 10.1.1: "Cooking equipment that produces grease-laden vapors and that might be a source of ignition of grease in the hood, grease removal device, or duct shall be protected by fire- extinguishing equipment." The Amerex "Zone Defense" Fire Suppression System has been approved and tested in compliance with the requirements of NFPA 96 —"Standard for Ventilation Control & Fire Protection of Commercial Cooking Operations, NFPA 17A —"Standard for Wet Chemical Extinguishing System" and UL-300 — "Fire Testing of Fire Extinguishing Systems for Protection of Restaurant Cooking Areas". The Amerex "Zone Defense" System provides two types of appliance protection; "Zone of Protection" and "Dedicated Appliance Protection." The following is a list of eligible cooking appliances and their maximum cooking hazard size that may be protected with the "zone of protection" nozzle coverage. Appliance Type Fryer Range Wok — maximum Wok — minimum Griddle Lava Rock Char-broiler Gas or Electric Radiant Char-broiler Mesquite Charcoal (Solid Fuel) Char-broiler Mesquite Chips & Chunks Char-broiler Mesquite Logs Char-broiler Maximum Cooking Hazard 34 in. deep x (5.6 Sq. Ft. total) 34 in. deep x Unlimited Length 26 in. Diameter x 7 in. Deep 14 in. Diameter x 4 in. Deep 30 in. deep x Unlimited Length 24 in. deep x Unlimited Length 24 in. deep x Unlimited Length 28.5 in. deep x Unlimited Length (6 in. Maximum Fuel Depth) 28.5 in. deep x Unlimited Length (6 in. Maximum Fuel Depth) 28.5 in. deep x Unlimited Length (11 in. Maximum Fuel Depth) ZONE OF PROTECTION — DEFINED The "Zone of Protection" is a rectangular area 34" deep X the length of the hood in which an eligible cooking appliance can be placed and be protection. The appliance may be moved to any location within the "Zone of Protection" and be protected without any nozzles being moved or re-aimed. The "Zone of Protection" is created by the use of overlapping spray from multiple nozzles creating an area that is soaked by wet chemical agent. This is accomplished by placing Amerex ZD nozzles, part number 14178, in a straight line from one end of the hood to the opposite end. The nozzles are to be a maximum of 20 inches (50.8cm) apart on center and must start and end at a point no greater than 6 inches (15.2cm) from the end of the hood. The nozzles are to be located 46 to 51 inches above the top surface of the appliances and aimed straight down. The resulting "Zone of Protection" is a rectangular area 34" (86.4cm) deep x length of hood with its front and rear edges 17" (43.2cm) from the centerline of the nozzles. LENGTH OF HOOD HOOD DEPTH 34" DEPTH ZONE of PROTECTION 17 ' ZZLE OSIT ON 41111111.0 4111111111110 11110 — • - • - • -0- - • - • -40- • 0 0 0 0 ' CENTERLINE OF — . ZD NOZZLES APPENDIX A - Page 33 of 49