12
INSTALLATION
The EWC extinguishing system consists of pressurized agent storage cylinders, agent distribution piping,
valve actuators, optional supervisory pressure switches, and agent discharge nozzles. All primary
components and piping are factory-installed. Systems may be comprised of single or multiple cylinders
depending on the size and configuration of the protected hazards.
Cylinders can be piped independently, or manifolded. On two-cylinder systems, the cylinders will be in a
manifold configuration. Refer to Figure 34 on page 34 for a two-cylinder system example. On three-
cylinder systems, two cylinders will be in a manifold configuration and one independent. On four-cylinder
systems, there will be two separate manifolds.
In a fire condition or upon manual actuation, the EWC solenoid valve is opened, allowing pressure from the
primary cylinder to flow to the primary and secondary cylinder valve actuators, opening the cylinder valves
and discharging EWC liquid fire suppressant to the protected hazard areas.
Figure 12 - Cylinder Assemblies
Cylinders
Cylinders are typically factory-installed, pressurized, and may be located anywhere within the hood end
cabinet. Additional cylinders may be field installed, as needed, in the additional hood end or wall mount
cabinet. The following examples show a dual cylinder system mounted to the right of the hood control unit.
Each cylinder assembly is secured to a factory-installed cylinder bracket in the hood end cabinet. The
cylinder is secured to the cylinder bracket via three (3) stainless steel straps.
Figure 13 - Dual Cylinder Mounted in Cabinet
WARNING!
System must be installed in conditioned space between 32°F and 130°F.
1. Primary Cylinder Assembly
2. Secondary Cylinder Assembly (Optional)
Right side cabinet mount shown.
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