FM System Requirements
579-385
Rev. N
This section describes specific requirements for Factory Mutual agent release and
preaction/deluge systems.
Use battery calculations for battery voltage to 23 V DC minimum.
Use Coil Supervision Module 2081-9046 on each releasing circuit.
Release circuit voltages must remain between 20.4 V DC and 26.4 V DC under all
load conditions. Follow wiring chart to determine maximum wiring distance from
panel to releasing appliances.
The RAC is compatible for use with any FM approved electric release deluge,
pre-action and refrigerated area sprinkler solenoid valve rated 22 watts or less.
Refer to the solenoid valve manufacturer’s product documentation for
verification of agency listings and power requirements.
Initiating device circuits must be wired Class A.
Battery standby must be 90 hours.
Release circuit voltages must remain between 20.4 V DC and 26.4 V DC under
all load conditions. Refer to Table 3 to determine maximum wiring distance
from panel to releasing appliances.
Introduction
General
Automatic
Extinguishing
Release
Requirements
Preaction/Deluge
Applications
