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. SPCTION IV — SYSTEM DESIGN <br /> UL F�C3470 ULC EX3470 Page 4-S <br /> �'�-flg REV.5 <br /> PEenum Protectlon <br /> The R-1o2 system uses the 1 W Nozzle(Part 1Vo.479336}or the <br /> 1 N Nozxle(Part No.419335)tor plenum protection.7he 1 W noz. � <br /> zle tip ls stampe�w�th tW and the iN nozzle tip is stamped wlth ' <br /> 1tV,indiceting they are one-flow nozzles and must be caunted as � N��g��� <br /> one fiow number each.When protectfng a plenum chamber,the �IM� <br /> entire chamber must be protected regardless of fllter iength, <br /> VERTICALPROTECTION—GENERAL �{ '�"•(2.s'x"� <br /> '1 W NOZZLE — PART Np, 4i 8336 — SINGLE AND"V" BANK e M��MUM <br /> 'PR07ECTlON <br /> One 1 W nozzle wfll protect 4 linear Teet{1.2 m}of p(�num.The 1 20 IN.(51 cm} <br /> maximum disfance fram the end ot the hood to the first and last ��MUM <br /> noule must be no more.than 2 ft(U.6 m}.After the first nozzie,any <br /> additional nozzles must be positioned at a maxfmum of 4 ft(1.2 m) <br /> apart down the entire length of the ptenum.The pienum width must ±rN.(zs�> <br /> noi exceed 4 ft(1.2 m).(The 1 W nozzle can be Used on single or MINIMUM <br /> V bank fiiter arrangements.)See Ffgure e. <br /> z F-r�o.a m) FIGURE 7 <br /> MAXIAAUM ,� ��Po <br /> 'FT c�•z m) Opilon 2:The 1 W nozzle must be placed perpendicutar,8-12 in. <br /> a FT{�.2 M>"''"'��"�"`� (20-30 cm}lrom the iace of the fiiter and angled to the <br /> a��2 <br /> 2 FT(0.8 m�MAXIMUM �i' '"� center ot the filter.The nazzle tip must be withfn 2 in. <br /> MAXIMUM �M <br /> � (5 cm} irom the perpendicutar center line of the filter. <br /> 5ee Flgure 8. <br /> 72 IN.(30 cm) <br /> MAXIMUM <br /> 4 IN. \ <br /> (10 cm) � <br /> ��. � 8�N.(20 cm) <br /> �� ���� MINIMUM <br /> �� t � <br /> /� <br /> NOZZLB 71P <br /> MUST BE WRHtN <br /> PtGURE 6 rH�snaFa <br /> Whan protecting plenums wlth the 1 W nozzle,two opiiens of cov, <br /> erage are available: <br /> Opt(on i:The 1 W nozzle must he on the center Ilne of itie single ��GURE 8 <br /> or °V" bank filter and positfoned wiihin 1-2p in, HORIZONTAL PRO7ECTION—OPTION 1 � <br /> (2.5-51 cm} above the top edge of the filter. See <br /> F�9Ufe 7' 1N NOZZI.E—PART NQ.419335—SINGLE SANK PROTECTION <br /> One i N nozzle will profect 10 iinear feei{3.1 m)of single filter bank <br /> pfen�,'���ets�must be mounted fn the plenum, 2 to 4 in. <br /> (5 to 10 cm)from the tace ai ihe fiiter,centered between the filter <br /> height dimenslon,and aimed down the length.The nozzle musf be <br /> pasitioned 0•8 in,(0-i 5 cm)from the end of the hood to the tip af the <br /> nozzle.See Figure 9. <br /> 2-4W. tOFI'.(3.tm) <br /> (5—70 ctn) MAX�NlUM <br /> � <br /> oao2o� <br /> ` �i <br /> amxoa <br /> FIGURE 9 <br />