FIRETRACE FK-5-1-12 - Nozzle and Discharge Pipe Requirements; Discharge Nozzle Limitations; Nozzle Area Coverage; Table 32 - Nozzle Area Coverage Limitations

800027-A 26 06/05/2023
4.7 Nozzle and Discharge Pipe Requirements
4.7.1 Discharge Nozzle Limitations
Two size nozzles are available for use with the Firetrace ILP FK-5-1-12 Units.
The small nozzle, P/N 500015, is only used with the 2.5 lb (940205) units. The small unit can be designed using 1, 2, or 4 nozzles to suit the hazard
configuration.
The medium nozzle, P/N 500120, is only used with the 5 lb (940555), 10 lb (941055) and 20 lb (942055) units. The 5 & 10 lb units can be designed
using 1, 2, or 4 nozzles to suit the hazard configuration. The 20 lb (942055) can be designed using 2 or 4 nozzles to suit the hazard configuration.
Each nozzle is to be installed at the top of the hazard enclosure facing down in a pendant position and centered in the area to be protected by that
particular nozzle
Each cylinder valve is equipped with (2) discharge ports (DP). Whether (1) or (2) discharge ports are used depends on the size and shape of the
enclosure, and the number of nozzles required to cover the specific hazard.
4.7.2 Nozzle Area Coverage
Table 32 – Nozzle Area Coverage Limitations below shows the nozzle area coverage limitations for Firetrace Pre-Engineered FK-5-1-12 ILP
Automatic Suppression Units. The maximum enclosure height for nozzle installation is 10 ft [3.05 m]. The minimum enclosure height for nozzle
installation is 1.6 ft [0.3 m].
Table 32 – Nozzle Area Coverage Limitations
Model
Discharge
Ports Used
(DP)
Nozzles
Per DP
Total Number
of Nozzles Per
Unit
Maximum Area
Coverage
Per Nozzle
Maximum
Protected
Height
940205
1
1
1
5’x5’ = 25 ft
2
(1.52m x1.52m = 2.32 m
2
)
10 ft
(3.05 m)
2
1
2
2
4
940555
1
1
1
6’ x 6’ = 36 ft
2
(1.83m x 1.83m = 3.35 m
2
)
10 ft
(3.05 m)
2
1
2
2
4
941055
1
1
1
6’ x 6’ = 36 ft
2
(1.83m x 1.83m = 3.35 m
2
)
10 ft
(3.05 m)
2
1
2
2
4
942055
2
1
2
6’ x 6’ = 36 ft
2
(1.83m x 1.83m = 3.35 m
2
)
10 ft
(3.05 m)
2
4