SECTION 3 – SYSTEM DESIGN
UL EX3830 ULC EX3830
PagE 3-10 REV. 06 2014-NOV-10
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
NOZZLE COVERAGE AND PLACEMENT (Continued)
Appliance Protection (Continued)
The 1L nozzle (Part No. 551026) is used for low proximity
griddle protection. This nozzle is a one flow nozzle. The
nozzle must be located
above any corner
of the hazard
surface, 10 in. to 24 in. (254 mm to 609.6 mm) above the
cooking surface of the appliance and aimed at a point 12 in.
(304 mm) over and 12 in. (304 mm) in from the corner below
the nozzle. See Figure 3-16.
006184PC
1H, 1L
1H
1L
10 IN.
(254 mm)
12 IN.
(304 mm)
48 IN.
(1219 mm)
24 IN.
(609.6
mm)
12 IN.
(304 mm)
12 IN.
(304 mm)
aIM POINT
NOzzLE (aNY
CORNER)
EDgE OF HazaRD aREa
HazaRD
SURFaCE
FIGuRE 3-16
6a. Small Griddle
(1080 in.2 (69677 mm2) x 36 in. (914 mm)
longest side maximum)
Alternate Protection
Two nozzles are available for small griddle
alternate
protection:
High proximity and low proximity.
The 2H nozzle (Part No. 551028) is used for high proximity
griddle protection. This nozzle is a two flow nozzle. The
nozzle must be located 0 to 6 in. (0 to 152 mm) from short
side of the hazard surface, 24 in. to 48 in. (609.6 mm to
1219 mm) above the cooking surface of the appliance and
aimed at the center of the hazard area. See Figure 3-17.
The 2L nozzle (Part No. 551027) is used for low proximity
griddle protection. This nozzle is a two flow nozzle. The
nozzle must be located 0 to 6 in. (0 to 152 mm) from the
short side of the hazard surface, 13 in. to 24 in. (331 mm to
609.6 mm) above the cooking surface of the appliance and
aimed at the center of the hazard area. See Figure 3-17.
2H
6 IN.
(152 mm)
6 IN.
(152
mm)
EDgE OF
HazaRD aREa
NOzzLE
LOCaTION
zONE
L
48 IN.
(1219 mm)
2H, 2L
2L
1/2 L
1/2 L
24 IN.
(609.6 mm)
13 IN.
(331 mm)
FIGuRE 3-17
7. Large Griddle
(1440 in.2 (92903 mm2) x 48 in. (1219 mm)
longest side maximum)
Two nozzles are available for large griddle protection: High
proximity and low proximity.
The 2H nozzle (Part No. 551028) is used for high proximity
griddle protection. This nozzle is a two flow nozzle. The
nozzle must be located
above any corner
of the hazard
surface, 24 in. to 48 in. (609.6 mm to 1219 mm) above the
cooking surface of the appliance and aimed at a point 12 in.
(304 mm) over and 12 in. (304 mm) in from the corner below
the nozzle. See Figure 3-18.
The 2L nozzle (Part No. 551027) is used for low proximity
griddle protection. This nozzle is a two flow nozzle. The
nozzle must be located
above any corner
of the hazard
surface, 10 in. to 24 in. (254 mm to 609.6 mm) above the
cooking surface of the appliance and aimed at a point 12 in.
(304 mm) over and 12 in. (304 mm) in from the corner below
the nozzle. See Figure 3-18.
006184PC
2H, 2L
2H
2L
12 IN.
(304 mm)
10 IN.
(254 mm)
48 IN.
(1219 mm)
24 IN.
(609.6
mm)
12 IN.
(304 mm)
12 IN.
(304 mm)
aIM POINT
NOzzLE (aNY
CORNER)
EDgE OF
HazaRD aREa
HazaRD
SURFaCE
FIGuRE 3-18
