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. i SECTION IV — SYSTEM DESIGN UL EX3470 ULC EX3470 Page 4-22 REV.5 7-1-pg Chain Broiler Protection 'The following listed protection guidelines can be applied to any Overhead Chatn Broiler Protection manufacturer's chain broilers, if the chain broiler meets the speci- fied parameters. Chain broifers utilizing catalytic converters can 'The R-102 system can use two 1 W Nozzles(Part No.419336)for be protected from overhead using model specific protection iden- overhead chain broiler protection.The nozzle tip is stamped with tified in the "Specific Application by Model" section in System �W��ndicating that this is a one-flow noule and must be counted Design. Or,they can be protected with standard 1 N nozzle hori- as one flow number. zontal chain broiler protection with the nozzles positioned at either Overhead protection is only available for chain broilers with end of the chain broiler openings. Refer to the Horizontal Chain exhaust opening dimensions that are not less than 60% of the Broiler Protection section for specific design information. internal broiler length and not less than 60%of the internal broiler Horizontal Chain Broller Protectlon width,to a minimum size of 12 in.x 12 in.(30.5 x 30.5 cm).Internal broiler size can not be larger than 32 in.x 34 in.(81 x 86 cm). The R-102 system can use two 1 N Nozzles(Part No.419335)for When overhead protection is used,the nozzles must be centered ►horizontal chain broiler protection.The nozzle tip is stamped 1 N, above the exhaust opening within 4 to 8 in.(10 to 20 cm)of each indicating that this is a one-flow noule and must be counted as other and they must be located 10 to 26 in.(25 to 66 cm) above one flow number(total of two flow numbers for each chain broiter ►the top of the broiler surface.See Figure 55. being protected). Two 1 N nozzles are always needed for chain broiler protection when the hazard area to be protected does not meet the �4•8 IN.(10•20 cm) "Overhead Broiler Protection"requirements.The maximum inter- �r nal size of the broiler is 43 x 31 in.(109 cm x 79 cm).The noules � ��iN. must be positioned at each end of the enclosed cooking chamber � (25-HB cm) 1 to 3 in.(2.5 to 7.5 cm)above the surface of the chain and a max- imum distance of 4 in.(10 cm)away from the broiler opening.The nozzles may be mounted at either corner as long as they are at � opposite ends of the chain broiler and positioned to discharge � ��' ►diagonally across the top of the chain.See Figures 53 and 54. +z iN.(ao.s�m� 12 IN.(30.5 cm) MINIMUM MINIMUM MAXIMUM INTERNAL ��-�._ BROILER SIZE - 32 X 34 IN. (Bl x 86 cm) .� ► FIGURE 55 uoozm The noules may vary in position as long as they are eveniy spaced from the exhaust center and are always 180°opposite of �2,5 each other.If the opening is not square,the nozzles must be posi- tioned along the centerline,parallel to the longest side of the open- ►ing.See Figure 56. 1 � 7—3 IN. (2.5—7.5 cm) �� ,�'�� � ► 0002ae FIGURE 53 TOP VIEW TOP VIEW �—•—•�. FIGURE 56 .�.,�, 0002 — Note: The CB Metal Blow-off Cap must be used when using chain broiler protection. MAXIMUM INTERNAL BROILER SIZE q3 X 31 IN. (108 X 78 cm) • FIGURE 54 oaozn