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SECTION IV. — SYSTEM DESiGN <br /> UL EX3470 ULC EX3470 Page 4-t6 <br /> REV.7 7-1-09 <br /> ►Range Protection iN(1-fifow)Noate—Low Proxlmity .Range ProtectlanT�vo(2)290(2-Ftow}Nozzles—Low <br /> Appiicaifon i Proximlty Applicatlon <br /> 15 in.to 2Q in.(36.1 cm to 50.8 cm)above the cooking surtace.. �15 in.to 20 in.(38 cm to fi1 cm)above the cooking sur(ace. <br /> The 1ow proximity 1-flow nozzle appticattan for the protection of The fow proximity 2-fiow application requires the use of two(2)290 <br /> ranges requires the 1N nozzle,Pari No.419335. nozzles,Part No.419342. <br /> The nozzle tip is stamped with i N indicating that it is a one•tlow ►Both nozzle Ups are stamped wtth 290 indicating they are twa tlow <br /> nouie and must be counted as one(1)flow number, noules and must be counted together for a.total of tour(4)ilow <br /> When using the 1N nozzle for low proximity range protection with numbers. <br /> or without obstruction,the maximum tength of the burner grates 7wo (2) 290 nozzlss will protect a cooking area of 1008 in,z <br /> being protected must not be exceed 24 in.(6i.0 crn}length,aimed ►(8503 cm�with a maximum dimenston of 3B in.(9i cm}. <br /> along a centerline to a point 20 in.(50.8 cm)from ihe end of khe yyhen using two of these noules for low proxlmiry range protec- <br /> length,protecting a maximum width oS 18 in.(45.7 cm}, tion,the noules must be pasitioned along the cooking sudace <br /> When protecting a�ange,ihe 1 N nozzle must be bcatad a maxi- perimeter to 1.5 in.{3.8 cm)lnside the perimeter,and aimed at a <br /> mum of 9 in.(22.9 cm}trom each burner grate centerline and must 46° angle along the longiiudinal centeriine of the range. See <br /> be posilloned above the edge af the hazard area to be protected. ►Figures 35 and 36. <br /> The 1N nozzie tip must be positionad at or 6e1ow ihe obst�uction, 280NOZZlETIP <br /> IE resent. The rotected area be Ins at the point stral ht down � LOCATIONO-1.6{N. y <br /> p p 9 9 (0-3.8cm) <br /> from the noule tip.7he nozzle can be placed at the side of the �"�o�E���aF <br /> range aimed either left or right, or can be placed in the iront or a5• cm�cwa sua�ac� 45• <br /> back of the range. See Fgures 33 and 34 for nozzle IocaUon � E <br /> detai{s. � <br /> t51N.T020M7. , �1 � � t51N.T0201N. <br /> MAXFMUM � �` � � MAXiMUM , <br /> �', �E; � ` 1 <br /> , <br /> � ;�� ; o00000 <br /> 75-201N. � \\ � AIM � <br /> c�_51��i �� i Po�"T FIGURE 35 <br /> I 201N. �B <br /> ["--(51 cm)� I <br /> COOKIN4 LpNGITUDINAL <br /> AAEA —� CENTERLINE <br /> � Q � � <br /> � <br /> FIGURE 33 <br /> COOKIN� <br /> PROTECTED AREA � AREA <br /> 91N. <br /> (�Q°� 280 NOZ2L£TIP <br /> _.,_ 181TL -r -r LOCATION C6NTER OF <br /> (48 an} � COOKINO 3URFACE <br /> a 2 IN,(B cm) <br /> 290 NOZZL6 T1P LOCATION <br /> 0-15 IN.(3.8 cmy IN FROM ED4E �� <br /> owws OF COOKINp SURFACE <br /> GOQKING _r <br /> AREA <br /> 20 lN. <br /> (51 an)"� orox�u <br /> 24 IN. <br /> (81 an) <br /> COOKINa <br /> FIQURH 34 AREA <br /> ' - --r <br /> 290 NOZZLB TlP <br /> �+- -r LOCATION CENTER OF <br /> CAOKINO SURFACE <br /> t 2 lN.{5 an) <br /> 2�6 NOZZIE T(P LOCATION <br /> 0-1S IN.(3.8 cm)IN FROM E[}OE <br /> � OF CdOKIN(i SUHFACE FIGURE 38 <br />