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SECTION IV - SYSTEM DESIGN UL EX3470 ULC EX3470 Page 4-23 7-1-09 REV.B Overhead Chaln Broller Protection (Continued) Exampie No. 1 -Internal broiler size is 24 in.long x 20 in.wide 'Salamander Broiler Protection-1 F(1-Flow)Noule Overhead (61 x 51 cm), with an opening of 16 in, x 16 in. A salamander broiler with a maximum hazard area �nternal broit- (40.6 x 40.6 cm). (' er chamber)of 15 in.(38 cm)deep x 31 in. (79 cm)wide can be To determine minimum opening size, multiply the protected using a 1 F nozzle, Part No. 419333.The nozzle tip is internal length and the internal width by 0.6: stamped with 1 F,indicating that this is a one-flow noule. Length of opening-24 in.x 0.6=14.4 in. The single 1 F nozzle must be located directly in line with the cen- (61 cm x 0.6=36.6 cm) ter of the broiler opening,8 in.(20 cm)to 12 in.(30 cm)in front of Width of opening-20 in.x 0.6=12.0 in. the broiler end 12 in.(30 cm)to 18 in.(46 cm)above the top of the (51 cm x 0.6=30.5 cm) broiler.The nozzle must be aimed at the center of the top broiier The minimum allowable opening for overhead protec- opening when the grate is located in the middie position.The noz- tion would be 14.4 in.x 12.0 in.(36.6 x 30.5 cm). zle must be orientated so the nozzie tip flats are parallel with the grate left to right centerline.See Figure 57b. This example would be acceptable for overhead pro- tQCti011. 1 F NOZZLE--► NOZZLE (PART NO. 8�N• LOCATION ZONE Example No.2-Internai broiler size is 30 in. long x 24 in.wide 4�9333) (15�"'�� f�N.(2o cm) (76 x 61 cm) with an opening of 22 in. x 12 in. i �--� (56 x 30 cm). a iN. �+2 iN. To determine minimum opening size,multiply internal ('o°m� c�cm� length and internal width by 0.6: � Length of opening-30 in.x 0.6=18.0 in. - - - (76 cm x 0.6=45.7 cm) Width of opening-24 in.x 0.6=14.4 in. (61 cm x 0.6=36.6 cm) A�M AT CENTER OF THE AIM AT CENTER OF THE TOP TOP BROILER OPENING BROILER OPENING WHEN THE Minimum allowable opening for overhead protection OC TEDEN THEE�S oRATE IS LOCATED IN THE would be 1 S in,x 14.4 in.(45.7 x 36.G Cfll�. OF BROILER�OPENANGAT CENTER MIDDLE POSITION Because this broiler has an opening of 22 in.x 12 in., FIGURE 57b the 72 in.width is below the minimum allowable cal- �a�� culated dimension of 14.4 in.(36.6 cm)and therefore Salamander Broiler Protection-1 N�1-Flow)Noule Local would not be acceptabie for overhead protection. A saiamander broiler with a ma�cimum hazard area(internal broil- ►Salamander Broiler Protection er chamber)of 15 in.(38 cm)deep x 31 in.(79 cm)wide can be The R-102 system uses three different nozzle locations for sala- Protected using a 1 N noule, Part No.419335.The nozzle tip is mander broiler protection.All of the design options require a one- stamped with 1 N,indicating that this is a one-flow nozzle. flow nozzle. The single 1 N nozzle must be located above the grate on either Salamander Broiler Protection-1 N(1-Flow)Noule Overhead thetcente�r of he g ates'I See�Figu e 57c.noule must be aimed at A salamander broiler with a maximum hazard area(internal broil- er chamber) of 16 in.(41 cm)deep x 29 in.(74 cm)wide can be protected using a 1 N nozzle, Part No. 419335.The nozzle tip is ►stamped with 1 N,indicating that this is a one-flow noule. The single 1 N nozzle must be located directly in line with either vertical edge of the broiler opening,6 in.(15 cm)to 12 in.(30 cm) in front of the broiler, and 0 in.to 12 in.(30 cmj above the top of the broiler.The nozzle must be aimed at the center of the broiler ►opening.See Figure 57a. VERTICAL EDGE OF BROILER OPENINO I , 1N NOZZLE `-►i ' (PART NO.419335) � � NOZZLE 1N NOZZLE AIMED '\ 72 IN. LOCATION ZONE AT CENTER OF � (30 cm) �IN.(15 cm) 6RATES I � � ► FIGURE 57c , �� � B IN. --------------------- --- --�--- -----�- - (15 cm) ' _. AIM AT CENTER� --"---------°----" AIM AT CENTER OF BROILER OF BROILER OPENIN6 OPENING � FIGURE 57a �,�