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Chapter a—System Design <br /> REV.3 <br /> ►g. Nozzle Coverages <br /> Protection Nozzle Location <br /> Zone/Nozzle Specifications within Nozzle Nozzle <br /> Protection Nozzle L W Ht Maximum Protection Zone Offset3 Orientation <br /> INork:Areal NV-WA See Table 3-1 Volume 1920 cu ft 2 ft maximum 0 to 6 in. Vertical <br /> Area 160 sq ft off center pointing down <br /> Diagonal 18.86 ft (each side) <br /> Work Areal NV-SW See Table 3-1A Volume 1920 cu ft 2 ft maximum 0 to 6 in. Vertical <br /> Area 160 sq ft off center pointing down <br /> Diagonal 12.8 ft (each side) (orifices in <br /> (to farthest corner) direction of <br /> arrow) <br /> Backdraft NV-P1 4 ft 14 ft 12 ft Volume 672 cu ft Shortest side-center 0 to 6 in. Vertical <br /> Plenum Area 56 sq ft <br /> Side 14 ft Longest side-3 inch <br /> off center (each side) <br /> Pant Leg NV-P1 4 ft 16 ft 20 ft Volume 1280 cu ft Shortest side-center 0 to 6 in. Vertical <br /> Plenum2 Area 64 sq ft <br /> Side 16 ft Longest side-3 inch <br /> off center (each side) <br /> Pit NV-P1 24 ft 4 ft 4 ft Volume 384 cu ft Shortest side-center 0 to 6 in. Vertical <br /> (Option 1) Area 96 sq ft <br /> Side 24 ft Longest side-center <br /> Pit NV-DP2 24 ft 4 ft 4 ft Volume 384 cu ft Shortest side-center 2 to 8 in. Horizontal <br /> (Option 2) Area 96 sq ft <br /> Side 24 ft Height-center <br /> Under Floor NV-UF 16 ft 14 ft 4 ft Volume 896 cu ft Shortest side-center 0 to 6 in. Vertical <br /> Plenum Area 224 sq ft <br /> Side 16 ft Longest side-center <br /> Exhaust NV-DP2 3 ft 3 ft 24 ft Volume 216 cu ft Shortest side (cross 0 to 6 in. Horizontal for <br /> Duct Area 9 sq ft section)—center horizontal ducts <br /> Side 3 ft Longest side (cross <br /> (Round Duct section) Vertical for <br /> 3 ft 10 in.diameter) vertical ducts <br /> ' Exhaust N-DCT 12 ft Perimeter or Length—center 0 to 6 in. Horizontal for <br /> Duct4 3 ft 10 in.diameter Width—center horizontal ducts <br /> 24 ft length Vertical for <br /> vertical ducts <br /> 1 NV-WA and NV-SW nozzles can be used for plenum, pit, or under floor protection.The nozzle maximum specifications must be <br /> followed. <br /> 2 Pant leg dimensions 4 inch minimum x 48 inch maximum. <br /> 3 Nozzle offset is the maximum distance from the tip of the nozzle to the closest edge of the protection zone. <br /> 4 Single nozzle application on a PCI-15ABC or two nozzle application on a PCI-25sABC only. <br /> Note: If the exhaust duct is greater than 46 in.in diameter or 12 ft perimeter,the use of total flood protection can be utilized. <br /> ULEX 3437 CEx732 rr 1/0 <br /> February 1,2010 ,f <br />