Factory Mutual Requirements for Pre-Action
P/N 06-236530-001 G-1 August 2013
APPENDIX G
FACTORY MUTUAL REQUIREMENTS FOR PRE-ACTION
AND DELUGE SPRINKLER SYSTEMS
ARIES™ Fire Alarm/Suppression Control Unit applications that require Factory Mutual (FM)
Approval of pre-action and deluge sprinkler systems must conform to the following guidelines:
• SmartOne® Thermal Detectors, Model THD-7252, must be installed at 20 ft. spacings. The
pre-alarm and alarm setpoint ranges are as follows:
– Pre-Alarm: 80° to 155° F
– Alarm: 135° to 155° F
• The signaling line circuit must be configured for Style 6 wiring. Refer to Figure 2-14.
• Provide 90 hours of standby battery and 10 minutes of alarm operation. Refer to Appendix
A.
• Each release circuit is required to be configured for solenoid activation. The solenoid output
on-time period should be set to either “90 seconds” or “on until reset”.
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