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<br />SECTION IV. - SYSTEM DESIGN <br />UL EX. 3470 3-15-95 Page 4-10.4 <br /> <br />~ NOZZLE PLACEMENT REQUIREMENTS (Continued) ~ <br /> <br />Single Nozzle Fryer Protection - 3-Flow High Proximityl <br />2-Flow Low Proximity <br /> <br />If the fryer does not have a drip board, the maximum hazard <br />size is 19 1/2 in. x 19 in. (50 x 48 cm), or the fryer can have <br />a maximum area of 370 1/2 sq. in. (2390 sq. cm) with the lon- <br />gest side not to exceed 19 1/2 in. (48 cm). If the fryer has a drip <br />board, the maximum hazard size is 25 3/8 in. x 19 1/2 in. (65 <br />x 50 cm) or the fryer can have a maximum area of 495 sq. In. <br />(3194 sq. em) with the longest side not to exceed 25 3/8 in. (65 <br />em). The nozzle must be aimed at the midpoint of the hazard <br />area. <br /> <br />The R-102 system uses two different style nozzles for the pro- <br />tection of fryers. <br /> <br />1. High Proximity Applications: 21 in. to 34 in. (53 x 86 cm) <br />(34 in. (86 em) maximum diagonal) above the top surface <br />of fryer. See Figure 33h and Figure 33i. <br /> <br />The 3N nozzle, Part No. 76782, is used for high proximity <br />applications. The nozzle tip is stamped with 3N, indicating <br />that this is a three-flow nozzle and must be counted as three <br />flow numbers. <br /> <br />When using this nozzle for fryer protection, the nozzle tip <br />must be positioned anywhere along or within the perimeter <br />of the maximum hazard area and aimed at the midpoint. <br />See Figure .33h and 33i. <br /> <br />The maximum distance from the midpoint of the fryer to the <br />nozzle tip is 34 in. (86 em). See Figure 33h and 33i. <br />3N NOZZLE TIP 34 IN. (B6 em) <br />POSITIONED MAXIMUM DISTANCE TO MIDPOINT <br />ANYWHERE ALONG OR OF HAZARD AREA <br />WITHIN PERIMETER~ <br />OF COOKING SURFACE <br />AND AIMED AT THE <br />MIDPOINT ~~~L____......_ <br />.::;-- I -_-......: <br />"./..:: I ~/--~: <br />I.................. ......., ........-1- /T......;>t.""'~"'<::" <br />I '">--.....-"""'... 1/_/ ~ <br />...... -~- ~ <br />I< - T ~'t' __ <br />I -- - I i;' <br />I ---1---~ roV <br />I ~ <br />I ~. <br />Int <br />I <br /> <br /> <br />MAXIMUM COOKING AREA. <br />INCLUDING DRIP BOARD, <br />MUST NOT EXCEED <br />495 SO. IN. (3194 sq. em) <br />25 318 IN. (65 em) <br />MAXIMUM LONGEST SIDE <br /> <br />34 IN. (86 em) MAXIMUM <br /> <br />1 <br />21 IN. <br />(53 em) <br />MINIMUM <br /> <br />L <br /> <br /> <br />34 IN. <br />(B6 em) <br />MAXIMUM <br />DISTANCE TO <br />MIDPOINT OF HAZARD <br /> <br />-.J <br /> <br />FRYER WITH DRIP BOARD <br /> <br />rrr,1 IRF 1111 <br /> <br />3N NOZZLE TIP <br />POSITIONED <br />ANYWHERE ALONG OR <br />WITHIN PERIMETER OF <br />COOKING SURFACE <br />AND AIMED AT THE <br />MIDPOINT <br /> <br /> <br />34 IN. (B6 em) MAXIMUM <br /> <br />-t <br /> <br />21 IN. <br />(53 em) <br />MINIMUM <br /> <br />L <br /> <br /> <br />FRYER WITHOUT DRIP BOARD <br /> <br />.., <br /> <br />~ <br /> <br />MAXIMUM COOKING <br />AREA MUST NOT <br />EXCEED 370 1/2 SO. IN. <br />(2390 sq. em) <br />19 1/2 IN. (50 ern) <br />MAXIMUM <br />LONGEST SIDE <br /> <br />34 IN. (86 em) <br />MAXIMUM DISTANCE <br />W "]'" '" "~"' <br /> <br />FIGURE 33i <br /> <br />I <br /> <br />Ii <br /> <br />Ii <br /> <br />. <br />~\ <br />I <br /> <br />, <br /> <br />1\ <br />'I <br />I <br /> <br />1< <br /> <br /> <br />I <br />-: <br />I; <br /> <br />I] <br /> <br />. <br />. <br />. <br /> <br />. <br /> <br />. <br />. <br />