Gas Shut-Off Valves; Electric Remote Manual Release; Firestat (Heat) Detector - CaptiveAire EWC Installation, Operation And Maintenance Manual

Gas Shut-Off Valves

Electric gas shut-off valves are used to shut down the flow of fuel gas to the kitchen appliances upon
actuation of the EWC suppression system. An energized solenoid is used to hold the gas valve in the open
position. The solenoid closes the valve when de-energized via the output relay of the control panel. They
are available in 120V AC and 24V DC, ranging from 3/4" to 3" pipe sizes.

Electric Remote Manual Release

An electrically operated manual release that is listed must be used with the EWC extinguishing system.
The electric remote manual release is used to actuate the EWC extinguishing system manually and must
be properly located and supervised in accordance with NFPA 17A and NFPA 96.

Firestat (Heat) Detector

The Firestat (Fenwal Detect-a-Fire) is a listed electric thermal detector available in a variety of temperature
settings and used to actuate the EWC extinguishing system automatically. When a Firestat senses a
temperature higher than its setpoint, the Firestat contacts will close and energize the EWC suppression
system via the control panel.
Table 2 - Electric Gas Valves
Size P/N (ASCO)
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
Figure 11 - Firestat
11
8214235
8214250
8214265
8214275
8214280
8214290
8214240