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B. Plenum Protection
The model 1H nozzle, Part No. 551029, is a one (1) flow nozzle used for plenum protection. A single 1H nozzle can protect a plenum (with single or V-bank filters) 10 ft. (3.1 m)
C. Appliance Protection
Note: When protecting appliances which are larger than single nozzle coverage, multiple nozzles can be used.
Larger appliances can be divided into several modules, each equal to or smaller than single nozzle coverage. Exception: Fryers must not exceed a maximum of 864 sq. in. (5574 sq. cm).
For modularizing fryers, refer to "FRYER - MULTIPLE NOZZLE PROTECTION"
Design Chart
Appliance Type Maximum Cooking Hazard Area per Nozzle
Fryer Without Drip Board 19 in. x 19 1/2 in. maximum (48 x 49.5 cm)
Fryer With Drip Board 18 x 27 3/4 in.(45.7x70.5cm) max; 19 1/2 x 25 3/8 in.(49.5x64.5cm) max
Small Range 12 x 28 in. (30.5 x 71.1 cm) maximum
Large Range 28 x 28 in. (71.1 x 71.1 cm) maximum
Small Work 24 in. diameter x 6 in. deep (61 x 15.2 cm) maximum
Large Work 30 in. diameter x 8 in. deep (76.2 x 20.3 cm) maximum
Small Griddle Max area of 1080 sq. in. with the longest side to be a max of 36 in.
Large Griddle Max area of 1440 sq. in. with the longest side to be a max of 48 in.
Gas Radiant Char-Broiler Max area of 624 sq. in. with the longest side to be a max of 26 in.
Gas Radiant Char-Broiler Max area of 864 sq. in. with the longest side to be a max of 36 in.
Lava Rock Char-Broiler Max area of 624 sq. in. with the longest side to be a max of 26 in.
Natural Charcoal Broiler Max area of 480 sq. in. with the longest side to be a max of 24 in.
Mesquite Char-Broiler Max area of 480 sq. in. with the longest side to be a max of 24 in.
Upright/Salamander Broiler Max area of 1064 sq. in. with the longest side to be a max of 36 in.
Chain Broiler Max area of 1026 sq. in. with the longest side to be a max of 38 in.
1a. Fryers without Drip Board (19 x 19 1/2 in. maximum) (48 x 49.5 cm)
Two nozzles are available for fryer protection: High proximity and low proximity.
The Model 2H nozzle, Part No. 551028, is used for high proximity fryer protection. This nozzle is a two (2) flow nozzle. The nozzle must be located anywhere within the perimeter of the hazard area, 24 in. to 48 in. (61 to 122 cm) above the cooking surface of the appliance and aimed at the center of the cooking area. See Figure 3-3a.
The Model 2L nozzle is used for low proximity fryer protection. This nozzle is a two (2) flow nozzle. The nozzle must be located anywhere on the perimeter of the hazard area, 13 in. to 24 in. (33 to 61 cm) above the cooking surface of the appliance and aimed at the center of the cooking area. See Figure 3-3a.
1b. Fryers with Drip Board
The maximum single nozzle protection dimensions depend on the dimensions of the fry pot only.
For fry pots with maximum dimensions in 18 in. (45.7 cm) on the longest side and 324 sq. in. (2090 sq. cm.) maximum area, uses overall dimension of 27 3/4 in. (70.5 cm) on the longest side and 500 sq. in. (3226 sq. cm) maximum area.
For fry pots with maximum dimensions exceeding 18 in. x 324 sq. in. (2090 sq. cm), but no greater than 19 1/2 in. (49.5 cm) on the longest side and 371 sq. in. (2394 sq. cm) maximum area, use overall dimensions of 25 3/8 in. (64.5 cm) on the longest side and 495 sq. in. (3194 sq. cm) area.
Two nozzles are available for fryer protection: High proximity and low proximity.
The Model 2H nozzle, Part No. 551028 is used for high proximity fryer protection. This nozzle is a two (2) flow nozzle. The nozzle must be located anywhere with in the perimeter of the hazard area, 24 in. to 48 in. (61 to 122 cm) above the cooking surface of the appliance and aimed at the center of the cooking area. See Figure 3-3b.
The Model 2L nozzle is used for low proximity fryer protection. This nozzle is a two (2) flow nozzle. The nozzle must be located anywhere on the perimeter of the hazard area, 13 in. to 24 in. (33 to 61 cm) above the cooking surface of the appliance and aimed at the center of the cooking area. See Figure 3-3b.
