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SECTION IV - SYSTEM DESIGN <br /> UL EX3470 ULC EX3470 Page 4-23 <br /> 7-1-09 REV.8 <br /> i Overhead Chain Broiler Protection (Continued) <br /> Example No. 1 - Internal broiler size is 24 in.long x 20 in.wide 'Salamander Broiler Protection-1F(1-Flow)Nozzle Overhead <br /> (61 x 51 cm), with an opening of 16 in. x 16 in. A salamander broiler with a maximum hazard areainternal broil <br /> (40.6 x 40.6 cm). er chamber) of 15 in. (38 cm) deep x 31 in.(79 cm)wide can be <br /> To determine minimum opening size, multiply the protected using a 1F nozzle, Part No. 419333.The nozzle tip is <br /> internal length and the internal width by 0.6: stamped with 1F, indicating that this is a one-flow nozzle. <br /> Length of opening-24 in.x 0.6=14.4 in. The single 1F nozzle must be located directly in line with the cen- <br /> (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 <br /> Width of opening-20 in.x 0.6= 12.0 in. the broiler and 12 in.(30 cm)to 18 in.(46 cm)above the top of the <br /> (51 cm x 0.6=30.5 cm) broiler.The nozzle must be aimed at the center of the top broiler <br /> opening when the grate is located in the middle position.The noz- <br /> The minimum allowable opening for overhead protec- zle must be orientated so the nozzle tip flats are parallel with the <br /> tion would be 14.4 in.x 12.0 in.(36.6 x 30.5 cm). grate left to right centerline.See Figure 57b. <br /> This example would be acceptable for overhead pro- <br /> tection. 1F NOZZLE-o- NOZZLE <br /> (PART NO. 6 IN. •,... LOCATION ZONE <br /> 419333) (15 cm) : <br /> Example No.2- Internal broiler size is 30 in. long x 24 in.wide L•••-•38 IN.(20 cm) <br /> (76 x 61 cm) with an opening of 22 in. x 12 in. / I <br /> (56 x 30 cm). <br /> AIL <br /> 4IN.\-112 IN. <br /> _ 4 I . (30 cm) <br /> To determine minimum opening size, multiply internal <br /> length and internal width by 0.6: F � <br /> �=L` <br /> Length of opening-30 in.x 0.6=18.0 in. ��.�,i4/_�•ee.41a e;.,1,WW .T.W. <br /> (76 cm x 0.6=45.7 cm) Li♦� Li <br /> Width of opening-24 in.x 0.6= 14.4 in. AIM AT CENTER OF THE AIM AT CENTER OF THE TOP <br /> (61 cm x 0.6=36.6 cm) TOP BROILER OPENING BROILER OPENING WHEN THE <br /> WHEN THE GRATE IS GRATE IS LOCATED IN THE <br /> Minimum allowable opening for overhead protection LOCATED IN THE MIDDLE POSITIONAIM AT CENTER <br /> would be 18 in.x 14.4 in.(45.7 x 36.6 cm). MIDDLE POSITION OF BROILER OPENING <br /> Because this broiler has an opening of 22 in.x 12 in., FIGURE 57b <br /> I the 12 in.width is below the minimum allowable cal- <br /> 008426 <br /> culated dimension of 14.4 in.(36.6 cm) and therefore Salamander Broiler Protection-1N(1-Flow)Nozzle Local <br /> would not be acceptable for overhead protection. A salamander broiler with a maximum hazard area(internal broil- <br /> ►Salamander Broiler Protection er chamber) of 15 in. (38 cm) deep x 31 in.(79 cm) wide can be <br /> The R-102 system uses three different nozzle locations for sala- protected using a 1N nozzle, Part No.419335.The nozzle tip is <br /> stamped with 1 N, indicating that this is a one-flow nozzle. <br /> mander broiler protection.All of the design options require a one- <br /> flow nozzle. The single 1N nozzle must belocated above the grate on either <br /> vertical edge of the broiler opening.The nozzle must be aimed at <br /> Salamander Broiler Protection-1 N(1-Flow)Nozzle Overhead the center of the grates.See Figure 57c. <br /> A salamander broiler with a maximum hazard area(internal broil- <br /> er chamber) of 16 in. (41 cm) deep x 29 in.(74 cm) wide can be <br /> protected using a 1N nozzle, Part No.419335.The nozzle tip is ` <br /> ►stamped with 1 N, indicating that this is a one-flow nozzle. <br /> The single 1N nozzle must be located directly in line with either II <br /> vertical edge of the broiler opening,6 in.(15 cm)to 12 in.(30 cm) v„ <br /> in front of the broiler, and 0 in.to 12 in. (30 cm) above the top of <br /> the broiler.The nozzle must be aimed at the center of the broiler `�� <br /> ►opening.See Figure 57a. i, <br /> VERTICAL EDGE -►� �� <br /> OF BROILER <br /> 1.:1 <br /> OF <br /> OPENING �� <br /> 1N NOZZLE <br /> Lod (PART NO.419335) <br /> NOZZLE 1N NOZZLE AIMED <br /> 1 ..:7-4---LOCATION ZONE AT CENTER OF <br /> 12 IN. GRATES <br /> (30 cm) 6 IN.(15 cm) FIGURE 57c <br /> ,Et............ ... 7 1, ' 008428:IMF6 IN. i- (15 cm)�.I <br /> 3 AIM AT CENTER <br /> AIM AT CENTER OF BROILER <br /> OF BROILER OPENING f <br /> i*ji <br /> OPENING <br /> ' FIGURE 57a <br /> 008426 <br />