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—� V <br /> MAY 1, 1999 <br /> DUC7 PROTECTIO�N LIMITATIONS - <br /> MULTIP�E NOZZLES: <br /> When protecting ducts larger than 150 perimeter inches(380.7 cm) <br /> utilizing the 1Yz fl�w point noale[PM: 11963),the perimeter � <br /> is divided by 50 (126.9).The resulting number must �y <br /> be rounded up to the next whole number. ,y <br /> This equals the minimum number oi duct y� <br /> nozzles that must be used. The cross � <br /> sectional area of the duct is then <br /> divided into the same number of <br /> equally sized modules.The duct B <br /> noale is then located in the center Zp+Ze=Perfineeer�nd,es <br /> ot each module. <br /> � <br /> Note: In no case czn the diagonal dimensfon of each module exceed 30 inches <br /> (76.2 cm)witf:out adding additional duct nozzies. <br /> See Aimina Note- Page IV-28 <br /> PLENUM PROTECTION LIMITATIONS - _ <br /> SINGLE FLOW POINT NOaLE [PM: 11962] Singk Bank Protedion <br /> The Amerex Appliance, Plenum Noal= (P/N 11982) is capable o( . '�1 <br /> protecting plenums up to 10 feet(3.048 m) long with either <br /> a single inclined filter bank or a"V"bank filter arrangement. wwaeR� <br /> y The(itter height cannot exceed 24 inches (60.96 cm).Each -� ^' <br /> MIOr <br /> - plenum noaie uses one firnv point.The nozzle must be posftioned, ��y ncsu <br /> 4 inches (10.16) maximum from the wall, aimed horizontally and °Nf�" <br /> positioned down 1/3 the filter height irom the top oi the filtec � � <br /> "V" Bank Protection <br /> " +n�a xocr+r .. <br /> � ooMm Fnowrne <br /> �_ rov oFn�e Fl�hn. �o�m <br /> cer�xm Mt�e �*��,y' <br /> •j�� I I M&WK . <br /> .T�� I ' Y <br /> � �� <br /> , / . <br /> l%�+ <br /> r <br /> 1;�,1 <br /> ��rt- ramemne <br /> . � , �o��o... <br /> ���w� <br /> ���� <br /> � <br /> i � <br /> / :�gbl NOIILEiD BE . . <br /> � \b�'_�4. LOCJITEDD•�' <br /> W FAOM ENO WAI.� <br /> CENTEPm MTNE ^ .. <br /> - - 'N'BANK / `1 <br /> /jv <br />