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System Design <br /> 3-6 VENTILATIOlOT <br /> 3-6.1 Plenums <br /> Table 3-29. Plenum Protection <br /> Items Parameters ADP l0iozzle <br /> No I'Iltcr 1 10 ft.x 4 ft.(3 m x 1.2 m)M�. 1-located at one end of the plenum <br /> "V"P'ilter 10 ft.x 4 ft.(3 m x 1.2 m) 1 -located at one end of the plenum <br /> 20 tt.x 4 ft. (6 m x 1.2 m) 2-located at end of plenum poinling inwards <br /> Single Bank�lter 10 ft.x 4 ft. (3 m x 12 m) 1 -located at one end of the plenum <br /> 20 fC.x 4 ft.(6 m x 1.2 m) `L-located at end of plenum poinling inwards <br /> ; 1 When no filters arc present,the nozzle protecting the plenum is used to discharge the wet chemical on the under- <br /> side of tlte hood.In this case,the hood may not exceed a lengtli of 10 ft(3 m)or a width of 4 ft. (12 m). <br /> I <br /> Plenums larger than 10 ft. (3.0 m)x 4 ft. (1.2 m)may be protectcd by adding additional ADP nozzles <br /> � for each additional 10 ft. (3.0 m)of plenum length and each additional 4ft. (1.2 m)of plenum width. <br /> Nozzles may be installed pointing in the same direction, and/or at the ends of the plenum pointing <br /> toward each other(see Figure 3-28).Each nozzle will provide coverage for a maxiinum of 10 ft.(3 m) <br /> of plenum length and 4 ft. (12 m) of plenum width. <br /> ADP nozzles must be centrally located in the plenum with their discharge directed along the length of <br /> the plenum and located in relaiaon to the filters as shown in I�igure 3-28.Refer to I�igure 3-28 for filter <br /> I height. <br /> i <br /> i <br /> I <br /> � <br /> � <br /> I <br /> I ' <br /> , P/N 60-9127100-000 3-33 AprIl 2009 <br /> ` <br /> �� �� �� <br />