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sFCr�oN �v — svsrFM o�srcrc <br /> UL EX. 3470 ULC CEx747 page q_Z2 <br /> • REV.3 'l0-1-02 <br /> Chafn Brolier Protaction <br /> The R-1D2 syslem uses Iwo 1tJ Nozzlee (Parl No. 419335) for orerhead Chaln Brallor Protectton <br /> chaln broAer proteclfon. The nozzle tJp Is atamped 1N, Indicailn8 <br /> thet thls is a ona-fiow nozzlo and mus( i�e �oUflted 8g o�e Qpyr � �'��z syacem uses two 1W Nflu1 �Pen IVo. 4i9336) for <br /> - number (lotal of two qow numbers tor eech chaln broller being pro- <br /> tec�ed). overhead chein brotler prolec(fon, 71�e noule fip is sfamped wi(h <br /> Two iN noules ere always needed [or chafn brolfer profeclion iW +n�l�(inp thaf (hfa Is a one-Oownozzfe and must be counled <br /> w�ien ihe lidcard area to be protected does no1 maet �8 ag one flow number. <br /> "Overhead 6roiler Prolecl(on" requiremenls. The maulmurn fnler- UVemsad cdim ns[ons are f not less ihan Wh <br /> exhaust a p <br /> nal sJze of lhe brofler ls 43 x 3i In. (tOH cm x 79 cm), The nozz(es �nlemel broller Ienglh and not less Ihan 60°/, of the In{erna! broAer <br /> musl be poslllonad at each end of the e�closed cookfna chamber <br /> t to 3 ln. (2.5 to 7.5 Lm) above the surface of ihe chaln and a rriaX_ w�dfh to a mfnimum sfze of 12 !n. x 12 !n. (30.5 z 3D.5 cm). Internal <br /> Imum dlstance of4 )n. (1Q cm) eway from the brolleropsning. The Whe ed p�o ectlonis used3 he rnust bec antered <br /> nozzles may be mounled at ellher comer as long ea lhay ere al above Ute exhaust openin8 w(Ihin d lo B En. (40 l0 2o cm) of each <br /> opposile ends of (he chein brofler and pos►(Ioned �o dtscherge olher end ihey must be (oca(ed 10 tn 9s tn. �25 to ss c�,� obove <br /> • dia��nally across fne Iop of tha chaln, 3etl Flyures 45 811tl 4fi. • the top of 1he broNer aunace. See Figure 47. <br /> �- � �•ew.��o-ao�,p <br /> ;� � <br /> �..�. <br /> � 4a IN. <br /> �"�_ � (2SA0 cmJ <br /> i <br /> � �� � <br /> . � * <br /> / \ ? <br /> ' / �� 12 iH. (30.b om) <br /> 12 IN. (3Q.6 cm� M1�INIMUM <br /> MINIMUM <br /> - o0U74 <br /> " MNUMUM 7N7ERNAL <br /> BROtLER 91Z6 <br /> �� x » u�, <br /> (8i x 80 pn) <br /> J � ��cu�� a7 <br /> --- ���� The nozzlea me vA t �'� <br /> Y ry posillon uo Iong as lhey �iy dvenfy <br /> spac¢d fram the exheust center end are always 180' opposite of <br /> �_� iN , each olher. It (he openlnq la not square, !he noules must be posi <br /> ~—' (I•6- 7.8 em) Uoned elong ihe centerllne, parallef to ihe longesi side of lhe open- <br /> ► 1nQ._See Flgure d8. <br /> . �� <br /> � ,�,,,,. FIGURE 46 <br /> ��� � <br /> _ � �. <br /> _._._ <br /> •-. . � • , . TOP VfEW <br /> TOP VfEW <br /> • FIGURE 48 - <br /> �i�� <br /> MAxtMUM IWTERIVAL <br /> BROILER B12E 1] % 31 !N, <br /> 110g X 79 cmJ <br /> ' FIGIlRE 48 <br /> anul <br />