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F4 <br />NOZZLE PLACEMENT REOUIREMENTS (Continued) <br />Plenum Protection (Continued) <br />rlvvnC 29 <br />FIGURE 30 <br />The following pages detail types of appliance protection. Each <br />design requires several factors: correct nozzle choice, correct <br />nozzle height above hazard, correct nozzle location and correct <br />aiming point. <br />When protecting appliances which are larger than single nozzle <br />coverage, multiple nozzles can be used. <br />Larger appliances can be divided into several modules, each <br />equal to or smaller than single nozzle coverage. Exception: <br />Fryers must not exceed a maximum of 864 sq. in. (5574 sq. cm). <br />Single Nozzle Fryer Protection — 2-Flow High Proximity/ <br />2-Flow Medium Proximity <br />If the fryer does not have a drip board, the maximum hazard <br />(fry pot) size is 15 in. (38 cm) x 14 in. (36 cm) (maximum area <br />of 210 sq. in. (1355 sq. cm)). If the fryer has a drip board, the <br />maximum hazard (cookin surface) size is 21 in. (53 cm) x 14 <br />in. (36 cm) (maximum area of 294 sq. in. (1897 sq. cm)). The <br />maximum fryer pot size must still not exceed 15 in. (38 cm) x <br />14 in. (36 cm) (210 sq. in. (1355 sq. cm) of maximum area.) The <br />nozzle must be aimed at the center of the hazard area. <br />SECTION IV <br />UL EX. 3470 <br />— SYSTEM DESIGN <br />7.1-96 Page 4-9 <br />REV. 3 <br />The R-102 system uses two different style nozzles for the pro- <br />tection of fryers. <br />1. High Proximity Applications: 27 to 47 in. (68 to 119 cm) <br />above the top surface of fryer. See Figure 31a and Figure <br />31b. <br />The 230 Nozzle (Part No. 419339) is used for high prox- <br />imity applications. The nozzle tip is stamped with 230, <br />indicating that this is a two -flow nozzle and must be counted <br />as two flow numbers. <br />When using this nozzle for fryer protection, the nozzle tip <br />must be positioned anywhere along or within the perimeter <br />of the maximum hazard area and angled to the center. <br />FRYER WITH DRIP BOARD: <br />MAXIMUM DIMENSIONS 21 M. (53 an) s 14 IN. (35 an) <br />MAXIMUM AREA 204 SD. IN. (1597 sq. MI <br />FRY POT: <br />MAXIMUM DIMENSIONS 15 1N. (35 =I s 14 1N. (35 cm) <br />MAXIMUM AREA IS 210 SD. IN. (MU sq. an) <br />21 IN. <br />MAXIMUM <br />14 IN36 cm) <br />MAXIMUM <br />II <br />47 IN. <br />(119 an) <br />MAXIMUM <br />HEIGHT <br />(230 NOZZLE) <br />27 IN, <br />IN CMI <br />MINIMUM <br />HEIGHT <br />(230 NOZZLE) <br />TOP <br />OF r <br />15 IN. (35 cm) <br />MAXIMUM <br />POT SIZE <br />23L NOZZLE TIP POSITIONED ANYWHERE ALONG OR WITHIN PERIMETER OF <br />COOKING SURFACE AND AIMED TO THE CENTER OF THE. COOKING SURFACE. <br />FIGURE 31s <br />