SECTION 4 – SYSTEM DESIGN
UL EX3470 ULC EX3470
PAGE 4-30 REV. 11 2014-SEP-01
R-102 Restaurant Fire Suppression Manual
Nozzle Application Chart (Continued)
Minimum Nozzle
Maximum Hazard Nozzle Nozzle Nozzle Stamping –
Hazard Dimensions Quantity Heights Part No. Flow No.
Range Longest Side (High Proximity) 1 30 – 40 in. 439838 1N
32 in. (812 mm) (762 – 1016 mm)
Area – 384 in.
2
(24774 mm
2
)
Longest Side (Low Proximity) 1 15 – 20 in. 439838 1N
24 in. (609 mm) (381 – 508 mm)
Area – 432 in.
2
(27870 mm
2
)
Longest Side 40 – 48 in. 439836 1F
28 in. (711 mm) (1016 – 1219 mm)
Area – 336 in.
2
(With Backshelf)
(21677 mm
2
)
Longest Side 30 – 40 in. 439844 260
32 in. (812 mm) (762 – 1016 mm)
Area – 384 in.
2
(With Backshelf)
(24774 mm
2
)
Longest Side (High Proximity) 1 40 – 50 in. 439843 245
28 in. (711 mm) (1016 – 1219 mm)
Area – 672 in.
2
(43354 mm
2
)
Longest Side
(Medium Proximity) 1 30 – 40 in. 439844 260
32 in. (812 mm) (762 – 1016 mm)
Area – 768 in.
2
(49548 mm
2
)
Longest Side (Low Proximity) 2 15 – 20 in. 439845 290
36 in. (914 mm) (381 – 508 mm)
Area – 1008 in.
2
(65032 mm
2
)
Griddle Longest Side (High Proximity) 1 30 – 50 in. 439844 260
48 in. (1219 mm) (762 – 1270 mm)
Area – 1440 in.
2
(perimeter
(92903 mm
2
) located)
Longest Side (High Proximity) 1 30 – 50 in. 439845 290
30 in. (762 mm) (762 – 1270 mm)
Area – 720 in.
2
(center located)
(46451 mm
2
)
Longest Side (High Proximity) 1 35 — 40 in. 439838/439865 1N/1NSS
36 in. (914 mm) (889 – 1016 mm)
Area – 1080 in.
2
(perimeter located)
(69677 mm
2
)
Longest Side 1 20 – 30 in. 439845 290
(Medium Proximity) (508 – 762 mm)
48 in. (1219 mm) (perimeter
Area – 1440 in.
2
located)
(92903 mm
2
)
Longest Side (Low Proximity) 1 15 – 20 in. 439839 1W
26 in. (660 mm) (381 – 508 mm)
Area – 533 in.
2
(center located)
(34387 mm
2
)
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