BRAHM TM BC Central Collector Series
F IRE S UPPRESSION F UNCTIONS The functions of the fire suppression system (FSS) are driven by the Smart Relay. Heat and smoke sensors internal to the unit are used for fire detection, and the system can be activated manually through the fire pull. The system behaves as follows:
If:
Then:
The Key Switch is turned OFF (Key will be retained)
The fire suppression system is deactivated
The motor/VFD will shut down immediately, valve pulsing is shut down immediately, fire flap door closes immediately, alarm/strobe will activate immediately, and the fire bottle is triggered after a 20 second delay. The motor/VFD will shut down immediately, valve pulsing is shut down immediately, fire flap door closes immediately, alarm/strobe will activate immediately, and the fire bottle is triggered after a 20 second delay. The motor/VFD will shut down immediately, valve pulsing is shut down immediately, fire flap door closes immediately, alarm/strobe will activate immediately, and the fire bottle will NOT be triggered. The motor/VFD will shut down immediately, valve pulsing is shut down immediately, fire flap door closes immediately, alarm/strobe will activate immediately, and the fire bottle is triggered after a 20 second delay. The motor/VFD will shut down immediately, valve pulsing is shut down immediately, fire flap door closes immediately, alarm/strobe will activate immediately, and the fire bottle is triggered immediately.
The Fire Pull is activated
The Primary Heat Sensor is triggered (Valve Compartment)
The Smoke Sensor is triggered (Valve Compartment)
The Secondary Heat Sensor is triggered (Filter Compartment)
Fire detector hose burst/Fire Pressure Switch is triggered
Note : Fire flap doors changed to louvers on both intake and exhaust of unit. Note : Fire bottle changed to ABC. Note : In newer models the fire flap door has been replaced by louvers. The same process applies, however, the system resets automatically.
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