Site Manual
Alarm 2000 Iss 5
67
12.3 APPENDIX “C”
Older Revision of Ancillary Control Module
12.3.1 Ancillary Control Module:
Provides controls for the automatic and manual operation of air-conditioning / heating plant
and emergency lighting.
Air-conditioning
In the AUTO mode the air-conditioning/heating is automatically shut down if a fire alarm
signal is received from a Smoke/Heat Alarm, MCP or Sprinkler alarm dependent upon the
configuration selected. An output delay is provided to avoid a plant shutdown from a false
alarm due to a transient alarm condition. The delay time is set to 15 Seconds.
The air-conditioning/heating plant may be manually switched ‘OFF’ by pressing and
releasing the 'AUTO/OFF' button. In the ‘OFF’ mode the amber LED integral to the switch
will illuminate and will remain in this condition until manually de-selected. To restore to the
auto condition, press and release the “AUTO/OFF” button, the amber LED will extinguish.
Emergency Lighting
In the ‘AUTO’ mode the Emergency lighting will be automatically switched on if a fire alarm
signal is received from a Smoke/Heat Alarm, MCP or Sprinkler alarm dependent upon the
configuration selected. An output delay is provided to avoid unnecessary activation from a
false alarm due to a transient alarm condition. The delay time is set to 15 Seconds.
The emergency lighting can be manually turned ‘ON’ for testing purposes by pressing and
releasing the 'AUTO/TEST' button. The amber LED built in the switch body will illuminate.
After the test is completed the emergency lighting “AUTO/TEST” button must be pressed
to restore the module to the AUTO mode, the LED will distinguish.
Input:
Alarm signal from either the Smoke / Heat Alarms or the MCP
Sprinkler alarm voltage free contact to switch negative to the module (if required)
EMERGENCY LIGHTING HEATING/COOLING
AUTO/TEST
AUTO/OFF
ANCILLARY CONTROL
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