Kidde IG-55 - Pressure Operated Siren

Installation
06-237619-001 4-45 April 2020
4-17.5 Pressure Operated Siren
The pressure operated siren shall be located in accordance with the installation plan. Connect
the siren in accordance with requirements corresponding to the siren driver cylinder noted in
Table 4-19:
• Never connect a pipe supplying the agent to the pressure operated siren.
• The siren supply line shall start from a dedicated siren driver cylinder, which is separate
from the Agent cylinder.
• Typically located inside the protected space.
• Install a dirt trap and union as shown in Figure 4-35.
Figure 4-35. Pressure Operated Siren
Table 4-19. Siren Driver Cylinder Actuation Limits
Pilot Cylinder
Size
Siren Part
Number
Number of
Sirens per
Pilot
Cylinder
Maximum
Length of 1/4
in. Sch. 80
Pipe
Maximum
Length of 1/4
in. Sch. 40
Pipe
Maximum Length
of 5/16 in. x
0.032 in. Wall
Tubing
108 cu. in. 90-981574-001 1 90 ft. 90 ft. 90 ft.
1040 cu. in. 90-981574-001 4 500 ft. 500 ft. 500 ft.
1/2 in. UNION
FILTER
NOZZLE
2-7/16 in. (62 mm)
MOUNTING HOLES
TYPICAL
DIRT TRAP
1/2 in. PIPE NIPPLE, 3 in. (76 mm) LONG
PIPE CAP