2-6
The Ancillary Control Facility (see previous section) is used to control building air
conditioning systems during a fire alarm.
During the management of the alarm, it is often desirable to be able to delay restoring the air
conditioning system to normal operation, e.g., to clear smoke even after the alarm conditions
have been cleared.
The A/C RESET control allows this delayed restoration.
When a zone alarm occurs, among the other alarm indications, the A/C AUTO indicator lights
to show that the 4100U-S1 has taken control of the air conditioning system. This operation
remains in effect even after all alarms have been cleared and the 4100U-S1 system has been
reset and is back to normal.
Before the A/C AUTO operation can be reset, all alarms must be acknowledged, and the
system must be reset via the System Reset key.
Once the system reset is complete, and there are no alarms present, the A/C AUTO RESET
key can be pressed to restore the air conditioning system to normal operation.
Resetting Air Conditioning Control
Overview
Indication
Resetting
Содержание 4100U-S1
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