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SECTION IV — SYSTEM DESIGN <br /> UL EX3470 �JLC EX3470 Page 4-5 <br /> 7-1-09 REV 5 I <br /> Plenum Protection - � <br /> The R-102 system uses the 1 W Nozzle (Part No.419336)or the � <br /> 1 N Nozzle(Part No.419335)for ple�um protection.The 1 W noz- , <br /> zle tip is stamped with 1 W and the 1 N noule tip is stamped with 20 IN.(51�� <br /> 1 N,indicating they are one-flow nozzles and must be counted as MAXIMUM <br /> one flow number each.When protecting a plenum chamber, the <br /> entire chamber must be protected regardless of filter length. � t IN.(2.5 cm� <br /> VERTICAL PROTECTION—GENERAL I MINIMUM <br /> '1 W NOZZLE — PART NO. 419336 — SINGLE AND"V" BANK <br /> 'PROTECTION , <br /> 20 IN.(51 cm) <br /> One 1 W nozzle will protect 4 linear feet (1.2 m) of plenum.The MAXIMUM <br /> maximum distance from the end of the hood to the first and last <br /> noule must be no more than 2 ft(0.6 m).After the first nozzle,any � <br /> additional nozzles must be positioned at a maximum of 4 ft(1.2 m) 1 IN.(2.5 cm) <br /> apart down the entire length of the plenum.The plenum width must MINIMUM <br /> not exceed 4 ft(1.2 m).(The 1 W nozzle can be used on single or <br /> V-bank filter arrangements.)See Figure 6. FIGURE 7 <br /> 2 FT(0.6 m) <br /> 000,es <br /> MAXIMUM .. Optlon 2:The 1 W nozzle must be placed perpendicular,8-12 in. <br /> Ma,��ciMUM� (20-30 cm)from the face of the filter and angled to the <br /> a Fr�i z m� �a Fr��.z m� center of the filter.The nozzle ti must be within 2 in. <br /> 2 FT(0.6 m)MAXIMUM MAXIMUM 5 cm from the er endicular center line of the filter. <br /> MAXIMUM . � See Rgure 8. p p <br /> 72 IN.(30 cm) <br /> MAXIMUM <br /> 4 IN. � <br /> (10 cm) <br /> 8 IN.(20 cm) <br /> /" MINIMUM <br /> .� /i" � � <br /> �• �' NOZZLETIP <br /> C MUST BE WITHIN <br /> FIGURE 6 tHIS AREA <br /> 000187 <br /> When protecting plenums with the 1 W nozzle,two options of cov- <br /> erage are available: FIGURE S <br /> Optlon 1:The 1 W nozzle must be on the center line of the single 0002°° <br /> or "V" bank fiiter and positioned within 1-20 in. HORIZONTAL PROTECTION—OPTION 1 <br /> (2.5-51 cm) above the top edge of the filter. See 1 N NOZZLE—PART NO.419335—SINGLE BANK PROTECTION <br /> Figure 7. <br /> One 1 N noule will protect 10 linear feet(3.1 m)of single filter bank <br /> plenum.The noule(s) must be mounted in the plenum, 2 to 4 in. <br /> (5 to 10 cm)from the face of the filter, centered between the filter <br /> height dimension,and aimed down the length.The nozzle must be <br /> positioned 0-6 in.(0-15 cm)from the end of the hood to the tip of the <br /> noule.See Figure 9. <br /> / <br /> 2—4 IN. 10 FT.(3.1 m) <br /> (5—10 cm) MAXIMUM <br /> � <br /> 000zoi <br /> \ <br /> aaaaos <br /> FIGURE 9 <br />