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' � SECTION IV - SYSTEM DESIGN <br /> UL EX.3470 ULC CEx747 Page 4-5 � <br /> 4-1-06 REV.4 <br /> `"` Pienum Protection . <br /> � Option 2:The i W nozzie must be placed perpendicular, 8-12 in. <br /> The R-10Z system usss the 1 W tVozzle(Part No.419336)or the (20-30 cm)from the face of the fitter and angled to the <br /> ►1 N lVozzle(Part No.419335)for plenum protection.The 1 W noz- center of the filter.The nozzle tip must be within 2 in. <br /> zle tip is stamped with 1 W and the 1 fV nozzle tip is stamped with (5 cm) from the perpendicular center line of the fiiter. <br /> 1 N,indicating they are one-flow nozzles and must be counted as See Figure 8. <br /> one flow number each_When protecting a plenum chamber, the 12IN.(30 cm) <br /> entire chamber must be protected regardless of filter length. MnxirwuM <br /> 41N. �! � <br /> VERT�CAL PROTECTlON-GENERAL (�o cm) <br /> ►One 1 W nozzle will protect 4 linear feet (1.2 m) ofi plenum.The A a w.(zo cm� <br /> maximum distance from the end of the hood to the first and last MINIMUM <br /> nozzle must be no more than 2 ff_(.6 m}_After fhe first nozzle,any ' � <br /> additional noules must be positioned at a maximum of 4 ft_(1_2 m) NOZZLETIP = <br /> apart down the entire length of the plenum.The plenum width must nnusr sE wmiiN <br /> >not exceed 4 ft.��1.2 m).(The 1 W noule can be used on single or �+is aa� <br /> V bank filter arrangements.)See Figure 6. <br /> 2FT.(.om1 <br /> T.SAXtN1UM � <br /> e�r.(�z m� FIGURE 8 <br /> :uSHx�r.tur:t aaozoo <br /> 4Ff.(12m1 4FT.(72m} <br /> 2 Ff.(.6 m) MAX1�7Ul,� nv�x�t�tut� HOR(ZONTAt PROTECT(ON=OPTION 1 <br /> n�nxit�nur� <br /> .� _ / 1 fV NOZZLE-PART RIO.419335-SIfVGLE BANK PROTECTION <br /> One 1 Pl noale will protect 10 linear feet(3.1 m)of single filter bank <br /> ' ' plenum.The nozzJe(s) must be mounted in the pfenum, 2 to 4 in. <br /> (5 to 10 cm)from the face of the filter, centered between#he fifter <br /> height dimension, and aimed dowm the length.The nozzle must be <br /> " ~ >positioned 0-6 in.(0-15 cm)from fhe end of the hood to the tip of the <br /> Inozzle.See Figure 9. <br /> � `\ , '/'/, , r <br /> `•' , � � 2-41N. 10FT.(3.1 m� <br /> � <br /> FlGURE 6 (s-,o�� MAXIMUM <br /> wo,v� � <br /> ►When protecting pienums vvith the 1 W nozzle,two options of cov- <br /> erage are available: <br /> ►Option 1:The i W nozzle must be on fhe center(ine of the single °002°' <br /> or "V" ban4c filter and positioned within 1-20 in. <br /> (2.5-51 cm) abov� the tap edge of the filter. See \ <br /> Figure�. \ <br /> � � <br /> { z„��.�;i C;,� FIGURE 9 <br /> r.u;xiraut�rt <br /> � � <br /> � � <br /> 1 <br /> i <br /> S!°d.;_.5 ar;� <br /> � pql,ytrx�},o, <br /> I <br /> � � 1 <br /> 201N.{�7 cm} <br /> tAAXItAU1�9 <br /> . 1 <br /> f <br /> 7 IN.{2.5 cm) <br /> R9li�ISJUTi <br /> =`�, � <br /> FIGURE 7 <br /> ;�:,1 <br />