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<br />Rev.' <br /> <br />... "'--fI - ~ WAX <br />fI'.,."".t... ~-o2 - 1'5.5" WAX <br />.. --.. ""'.~M..-o3 - 1QO" UAX <br /> <br />...:.>< i '- '. <br />~ ~ L~:>j", <br />\ i --t) ,./" <br />~..::// f- :'-, <br />\ 1"'-, '" \ <br />~3" ./. <br />t,/ '---- /," " <br />, v <br /> <br />~~ <br /> <br />---r <br />I , <br />'. I <br />-,---.$----~_r " <br />. ; ; WI2 ; <br />, '--L-l. <br />;-1./2 ---I <br /> <br />Figure 3-2. Single Nozzle Placement In Duct. <br /> <br />" <br />.~I.r,""''''-'4'''AI( <br />~~ "'~71 - I~ W.. <br />" . '------ '. ,. <br /> <br />c! ~/ <br />I ,,/ <br />.~.('<:~t.. . ,'--\ <br />T //'>-./ I ;. '\ <br />, .f "- ,/ , <br /> <br />-C-J <br />, II <br />- L'-~-.-,_wr-'---r ~ <br />ii'IL <br />...J V. ...... -1 L./e i- <br />!--,~ <br /> <br />____......- 1'<<.- - U' .....1( <br />...( ............-0,) _ 150" WAll' <br />..~' <br />~'"" --;;, <br />'., ~:. <br /> <br />\ ~.~,; <br />I ~ ---- -.. <br />I . . "'-- <br />\~ {/, ~ ] <br />~~' <br />~ <br />~~. <br />: \ <br />-Ie-f <br />~.- <br /> <br />Figure 3-2.1. Dual Nozzle Placement In Duct. <br /> <br /> <br />Duct Nozzle Coverage Chart <br /> <br /> MA.~IUl\l ;\(A.,,(DIUl\l <br />:'fOULE SIDE PEROIETER FLOW PO[\"TS <br />Nt.p IT SO. 1 <br />2 x Nt-p ]4. 84" <br />Nt-D2 2S" 7S" 1 <br />3 <br />N1..DJ n 100. <br />2 x Nt-OJ 66" ISO' b <br /> <br />NOTE: A S~CLE ouer BRANCH CAN ONLY SUPPORT: <br />I) A Single l\'1.-P <br />2) A Single :\'1.-02 <br />3) A Single NL-03 <br />4) Two :-IL-rs <br />S) Two NL-D3's <br /> <br />B. Plenum Protection <br /> <br />The Model NL-A nozzle is a one (1) flow point nozzle that <br />has been developed to protect the plenum section of the <br />exhaust hood. Only one (1) Model NL-A nozzle can be <br />used on a single plenum branch. A single Model Nl-A can <br />protect a plenum (with single or V-Bank filters) with <br />rectangular dimensions of 8' x 4' or less. larger plenums <br />can be protected by dividing the hazard area so that each <br />nozzle protects an area of 8' x 4' or less (see Figure 3-3). <br />The nozzle(s) must be located at the center of the V-Bank <br />width or centered between the filter width when used with <br />a single bank filter plenum. It must be within 4. of the wall <br />it is mounted against (see Figure 3.4), or within 4" of the <br />edge of the protected zone. . <br /> <br />/1 <br />"0 n. I <br /> <br /> <br />~"/1 <br /> <br />1.0 n. I <br />~~ <br />\1 <br />J <br /> <br /> <br />Figure 3.3. Plenum Coverage Limitadons. Model NL-A Nozzle. <br /> <br />j . <br /> <br />LEX 3830 <br />ovember 1, 1994 <br />