re-2010-00202_0001 (2).jpg Chapter 3 — System Design
Page 3 -4
REV. 2
►g. Nozzle Coverages
Protection Nozzle Location
Zone /Nozzle Specifications within Nozzle Nozzle
Protection Nozzle L W Ht Maximum Protection Zone Offset Orientation
A,
Work Areal NV -WA See Table 3 -1 Volume 1920 cu. ft. 2 ft. maximum 0 to 6 in. Vertical
Area 160 sq. ft. off center pointing down
Diagonal 18.86 ft. (each side)
Work Areal NV -SW See Table 3 -1A Volume 1920 cu. ft. 2 ft. maximum 0 to 6 in. Vertical
Area 160 sq. ft, off center pointing down
Diagonal 12.8 ft. (each side) (orifices in
(to farthest corner) direction of
arrow)
Backdrafl NV -P1 4 fl. 14 ft. 12 ft. Volume 672 cu. ft. Shortest side - center 0 to 6 in. Vertical
Plenum Area 56 sq. fl.
Side 14 fl. Longest side -3 inch
off center (each side)
Pant Leg NV -P1 4 fl. 16 ft. 20 ft. Volume 1280 cu. ft. Shortest side- center o to 6 in. Vertical
Plenum Area 64 sq. ft.
Side 16 ft. Longest side -3 inch
off center (each side)
Pit NV -P1 24 ft 4 fl. 4 ft. Volume 384 cu. ft. Shortest side - center 0 to 6 in. Vertical
(Option 1) Area 96 sq. ft.
Side 24 ft. Longest side - center
Pit NV -DP2 24 ft. 4 fl. 4 ft. Volume 384 cu. ft. Shortest side - center 2 to 8 in. Horizontal
(Option 2) Area 96 sq. ft.
Side 24 fl. Height- center
Under Floor NV -UF 16 ft. 14 ft. 4 ft. Volume 896 cu. ft. Shortest side - center 0 to 6 in. Vertical
Plenum Area 224 sq. ft.
Side 16 ft. Longest side - center
Exhaust NV -DP2 3 ft. 3 ft. 24 ft. Volume 216 cu. ft. Shortest side (cross 0 to 6 in. Horizontal for
Duct Area 9 sq. ft. section) — center horizontal ducts
Side 3 ft. Longest side (cross
(Round Duct section) Vertical for
3 ft. 10 in. diameter) vertical ducts
Exhaust N -DCT 12 ft. Perimeter or Length — center 0 to 6 in. Vertical
Ducl 3 ft. 10 in. diameter Width — center (up)
24 ft. length
I NV -WA and NV -SW nozzles can be used for plenum, pit, or under floor protection. The nozzle maximum specifications must be
followed.
2 Pant leg dimensions 4 inch minimum x 48 inch maximum.
3 Nozzle offset is the maximum distance from the tip of the nozzle to the closest edge of the protection zone.
Single nozzle application on a PCI -15ABC or two nozzle application on a PCI- 25sABC only.
► Note: If the exhaust duct is greater than 46 in. in diameter or 12 fl. perimeter, the use of total flood protection can be utilized.
ULEX 3437 CEx732
September 1, 2006