System Components
UL EX-4510 2-1-12 Page 1-20.1
REV. 1
Description
The pressure-operated siren is used to warn personnel of a
system discharge. The siren is operated with the nitrogen
pressure from the pilot cylinder. The siren will operate at
the start of the INERGEN system discharge and will contin-
ue through most of the discharge time. A pipe hanger or
bracket must be installed within one foot of the siren.
The design requirements are as follows:
Maximum Pipe Length:
– 240 ft (73.2 m) of 3/4 in. Schedule 40 pipe
– 430 ft (131.1 m) of 1/2 in. Schedule 40 pipe
– 675 ft (205.7 m) of 3/8 in. Schedule 40 pipe
• Maximum Sirens: 5
• Maximum Elbows: 30
Pressure-Operated Siren
Component Material Approvals
Siren Body: Brass UL EX-4510; Listed
Grille: Steel
for use with FM
Screen: Stainless
Approved systems
Steel
Shipping Assembly
Part No. Description
437616 Pressure-operated siren
ANSUL
®
1/4 IN.
NPT
INLET
6.25 IN.
(159 mm)
5.60 IN.
(142 mm)
008806
0.34 IN. (9 mm)
DIA. HOLE (2)
3.42 IN.
(87 mm)
5.25 IN.
(133 mm)
Copyright © 2012 Tyco Fire Products LP.
All rights reserved.
Form No. F-99093-01
One Stanton Street +1-715-735-7411
Marinette, WI 54143-2542 www.ansul.com
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