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SECTION IV — SYSTEM DESIGN <br /> UL EX3470 ULC EX3470 Page 4-43.2 <br /> 7-1-09 REV.O <br /> OVERLAPPINQ NOZZLH COVEAAGE(Cont9nued) 2. When obstructions are located adjacent to appliance(s) pro- <br /> Overlapping Appliance Noule and Hazard Zone Locations— tected by overlapping nozzles,the overlapping appliance noz- <br /> Group Protection z!e spacing must start with the appliance(s) adjacen[to the <br /> obstruction.See Figure 91f. <br /> 1 For each group of protected appliances under a common <br /> hood(s),the overlapping nozzies must be located from right to 8�N 121N, 72 IN. 12 IN. 12 IN. <br /> l(3D.8 cm)I(30•5 cm)I(30.5 cm)I(30.5 cm)� <br /> left so that each end nozzie is located a maximum of 6 in. c+s.z cm� .—. . . . . ► . r 6 fN. <br /> MAX. �r MAX. + MAX. + MAX. ,� MAX, i (152 cm) <br /> (t 5.2 cm) inside the outside edge of the cooking hazard of Mnx. <br /> each end appliance,and the inside overlapping nozztes must � <br /> be located between the two end nozzles at a maximum spac- <br /> ing of 12 in.(30.5 cm).See Figures 91d and 91 e. <br /> ouTSioE <br /> EDGE OF <br /> 12 IN.(30.5 cm)MAXIMUM COO}CING <br /> �ISPACING(S)BENJ6EN HAZAflD <br /> OVERLAPPING N072LES <br /> / \ / \ / 1 <br /> 6 IN.—► ! / \ � \ i� ,\ —�`\ 6 IN. <br /> (S5.2cm) ! 1 � �� � \ / \ � t (152cm1 I__��� � — <br /> MA FI ROM `�� \`� ���� �,� MAXFROM � f"�HAZARD AREA—� <br /> EDGE OF ! � � OBSTRUCTION <br /> COOKING / /�� /n� � \ ��� ��COOK�NG <br /> HAZARD / ! � \ HAZARD FIGURE 91f <br /> OOtT3 <br /> 3. When an appliance requires dedicated protection with a pro- <br /> teoted area fntended tor overlapping appliance nozzie protec- <br /> tion,the group protection option will be required for appliances <br /> on elther side of the app{iances using dedicated protection. <br /> FULL Fi00D C013TINUOUS APPLIANCE PROTECT[ON Group protection using overlapping appliance nozzles must <br /> begin with the protected appliance{s)adjacent to the dedicat- <br /> FIGURE 91d ed app{iance protected. An overlapping appliance nozzle(s) <br /> �,,,o must be positioned withi�6 in.(15.2 cm)of the edge(s)of the <br /> appliance hazard surface area(s) adjacent to the dedicated <br /> nozzle protectfon.See Figure 91 g. <br /> 72 IN.(30.5 cm) 8 IN.(152 cm) <br /> MAXIMUM MAXIMUM <br /> EDGE OF COOKING <br /> � 1 1 � � HAZARD� <br /> 81N. � t�--�+ �-- �I 61N. ,L l <br /> (15.2cm) 121N. (152cm) 61N. f t21N.+ 7 121N. 121N. ` <br /> MAXIMUM (30.5 cm) MAXIMUfot (�52 cm�i (3p.5 cm) (30.5 cm)(30.5 cm) B�H <br /> FAOM R �I MAXIMUM F�M MAX. MAX. I� � MAX. MAX. (152cm) <br /> EDGE OF \ / EOGE OF <br /> COOKING COOKtNd .__ MAX. <br /> HAZAR� EQGE OF HAZARD E�E� 6 IN.(15.2 cm) 6 iN.(t5.2 cm) EOGE <br /> COOKING OF MAXIMUM � �XIMUM OF <br /> HAZARD COOKING COOKINp <br /> HAZARD HAZARD <br /> aROUP APPLIANCE PROTECTION <br /> FIGURE 91e <br /> ���� <br /> OE�ICATED NOZZLE <br /> APPLIANCE <br /> FIGURE 91g <br /> o�t,� <br />