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SECTION 4—SYSTEM DESIGN R-102 Restaurant Fire Suppression Manual UL EX3470 ULC EX3470 PAGE 4-58 REV. 11 2014-SEP-01 OVERLAPPING NOZZLE COVERAGE(Continued) Overlapping Appliance Nozzle and Hazard Zone Locations TABLE 1 1. All overlapping appliance nozzles must be the 245 nozzle Overlapping Nozzle Coverage(Zone Protection) for "end of zone" protection and the 260 nozzle for zone protection, and must be located under a common hood at Appliance Type Maximum Cooking Hazard the same height above the hazard zone, in a straight line Fryer 34 in. (863 mm) Deep x 5.8 ft2(0.5 m2) from right to left and aimed at the centerline of the hazard Griddle 30 in. (762 mm) Deep x Unlimited Length zone. The overlapping nozzle is used for both continuous Range 30 in. (762 mm) Deep x Unlimited Length overlapping and multiple group overlapping protection. Wok, Maximum 30 in. (762 mm) Diameter x 8 in. 2. The hazard zone must be positioned (located) so that all (203 mm) Deep appliance hazard surfaces are within the zone. For appli- Wok, Minimum 11 in. (279 mm) Diameter x 3 in. ance hazard surfaces smaller than the standard hazard (76 mm) Deep zone size, the hazard surface can be located anywhere Braising Pan/Tilt 34 in. (863 mm) Deep x Unlimited Length within the standard hazard zone. For appliance hazard Skillet* surfaces with listed protection exceeding the standard Lava Rock 26 in. (660 mm) Deep x Unlimited Length hazard zone size of 28 in. (711 mm) in depth (see Table Char-Broiler(see Note 1) 4-1), the hazard surface(s) must be aligned with the back Charcoal Broiler 30 in. (762 mm) Deep x Unlimited Length edge of the hazard zone, with the front edge overhanging (4 in. (101 mm) Maximum Fuel Depth) the front of the zone. Mesquite Wood 30 in. (762 mm) Deep x Unlimited Length 3. The overlapping appliance nozzles must be located 40 in.to Broiler (6 in. (152 mm) Maximum Fuel Depth) 45 in. (1016 mm to 1143 mm) above the top surface of the Gas Radiant 36 in. (914 mm) Deep x Unlimited Length protected appliances. See Figure 4-115. Char-Broiler Exception No. 1: Nozzle dimensions for wok protection are Electric Char-Broiler 34 in. (863 mm) Deep x Unlimited Length measured to bottom of wok. Exception No. 2: When using *See Figure 4-113 for nozzle location overlapping appliance nozzles in areas where there is a Note 1:Always try to place Lava Rock Char-Broiler(s)near the center of the back shelf, the nozzle cannot be positioned in the shaded zone.When the Lava Rock Char-Broiler is the first or last appliance in the zone, area as shown in Figure 4-114. the outside edge of the broiler must not be more than 6 in.(152 mm)outside the end nozzle. Also, back shelf must not extend more than 11 in. (279 mm) over the hazard zone and cannot be less than 18 in. f� (458 mm) above the hazard zone. See Figure 4-114. 0-12 IN. / OVERLAPPING NOZZLE(S) COVER MUST NOT I 1 (0-304 mm) 45 / CANNOT BE POSITIONED INTERFERE WITH i 1 44 IN THIS SHADED AREA EDGE OF f DISCHARGE 42 PATTERN I f 41 ! 40-45IN. 40 1 i (1016-1143 mm) 1210 8 6 4 2 I , 1 1; CENTER LINE OF ZONE ~HAZARD ZONE r / BACK / 'Z SHELF I 11 IN.(279 mm) MAXIMUM ZONE CENTER LINE 18 IN. FIGURE 4-113 MINIMUM 006927 28 IN.(711 mm) ►I FIGURE 4-114 006914