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' SECTION 4—SYSTEM DESIGN R-102 Restaurant Fire Suppression Manual <br /> UL EX3470 ULC EX3470 <br /> PAGE 4-18 REV. 11 2014-SEP-01 <br /> - Griddle Protection 1N(1-Flow)Nozzle—High Proximity Griddle Protection 290(2-Flow).Nozzle—High Proximity <br /> Application Application <br /> The R-102 system uses four different nozzles for the protection Option 1 —Nozzle Center Located <br /> of griddles. One of the applications requires a 1-flow nozzle and 30 in.to 50 in.(762 mm to 1270 mm)above the cooking surface. <br /> three of the applications require a 2-flow nozzle. <br /> This high proximity application uses the 290 nozzle. <br /> High Proximity Application:35 in.to 40 in. (889 to 1016 mm) <br /> above the cooking surface. 0-The nozzle is stamped with 290 indicating this is a 2-flow nozzle <br /> and must be counted as two flow numbers. <br /> This high proximity application uses the 1N nozzle. <br /> One 290 nozzle will protect a maximum cooking area of 720 in.2 <br /> ►The nozzle is stamped with 1N indicating this is a one-flow (46451 mm2)with a maximum dimension of 30 in. (762 mm). <br /> nozzle and must be counted as one flow number. <br /> When using this nozzle for high proximity applications, the <br /> One 1N nozzle will protect a maximum cooking area of 1080 in.2 nozzle must be positioned within 1 in. (25 mm) of the center <br /> (69677 mm2)with the maximum longest side of 36 in. (914 mm). of the cooking surface and pointed vertically down. See Figure <br /> When using this nozzle for griddle protection,the nozzle must be 4-41 and 4-42. <br /> positioned along the cooking surface perimeter to a maximum of CENTER LINE OF GRIDDLE <br /> 2 in. (50 mm) inside the perimeter, and aimed to the midpoint of ANYFDIRECTION(25 mm)IN <br /> the cooking surface.See Figure 4-39 and 4-40. 1 I <br /> NOTICE <br /> I I 50 IN. <br /> I (1270 mm) <br /> When using this type of griddle protection, <br /> HEIGHT <br /> MAXIMUM <br /> only five flow numbers are allowed on a 1.5I OF 290 <br /> gal (5.7 L) system and only 11 flow numbers NOZZLE TIP <br /> are allowed on a 3 gal(11.4 L) system. I 30 IN. <br /> 1 I (762 mm) <br /> I <br /> HEIGHT <br /> OF 290 <br /> I NOZZLE (, <br /> I TIP <br /> I- <br /> MIDPOINT OF --1 <br /> COOKING SURFACE I I i • <br /> 1 --1-- I <br /> 1 <br /> FIGURE 4-41 <br /> 000244 <br /> 1N NOZZLE LOCATED ALONG COOKING - <br /> ANY SIDE OF GRIDDLE SURFACE WITHIN SURFACE COOKING <br /> 0-2 IN.(0-50 mm)OF COOKING EDGE AREA <br /> SURFACE EDGE.NOZZLE MUST BE <br /> AIMED AT MIDPOINT OF COOKING NOZZLE 1 IN.(25 mm) <br /> SURFACE. FIGURE 4-39 LOCATION MAXIMUM <br /> 000241 101111 <br /> 1 <br /> I NOZZLE LOCATION ' t <br /> I 0-2 IN.(0-50 mm) 11 <br /> 1 INSIDE PERIMETER I 40 IN. <br /> -i <t--- OF COOKING SURFACE I 1 (1016 mm) Im. COOKING <br /> 7 1 I MAXIMUM p r AREA <br /> HEIGHT <br /> I ) OFiN <br /> fffy1 - <br /> IT NOZZLE TIP <br /> • <br /> 1 IN.(25 mm) <br /> / + 35 IN.(889 mm) MAXIMUM <br /> / MINIMUM <br /> 1::÷ <br /> EIGHT <br /> EDOF O 1 N CENTER OF GRIDDLE SURFACE OR A <br /> OF--► OZZLE TIP <br /> COOKING MAXIMUM DIMENSION OF 20.6 IN. <br /> SURFACE • (523 mm)FROM NOZZLE CENTERLINE TO <br /> FURTHEST CORNER OF GRIDDLE <br /> FIGURE 4-42� <br /> 000773\"-`./ <br /> - FIGURE 4-40 <br /> 000243 <br /> 0 <br />