Daikin UATYA-B, Operation Manual

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Service manual Daikin R32 Rooftops UATYA-B
ESIE21-02 – 2021.03
4.6.2 Humidity probes
Return air humidity
Alarm code AL78
Reason for activation When the value measured by the analogue input is outside the set operating range
Reset When the value measured by the analogue input falls within the set operating range
Reset mode Automatic
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
humidity control Humidity control is stopped.
The other devices They follow their control
External air humidity
Alarm code AL79
Reason for activation When the value measured by the analogue input is outside the set operating range
Reset When the value measured by the analogue input falls within the set operating range
Reset mode Automatic
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
All devices
They follow their own setup parameters: if the probe experiences a fault, all the tests requi -
red to start the functions connected to the external humidity value are bypassed.
4 Alarms