Daikin UATYA-B, Operation Manual

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Service manual Daikin R32 Rooftops UATYA-B
ESIE21-02 – 2021.03
4.3.5 Defrost cycle ended due to max. time achieved
Alarm code AL184 for circuit 1; AL185 for circuit 2
Reason for activation If a defrost ends due to time limit instead of due to condensing temperature threshold
Reset Automatic
Reset mode At the next defrost ended with exceeding of the condensation threshold
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
The other circuits and
devices
They follow their control
4.3.6 “Leak detector” alarms
Refrigerant leak alarm
Alarm code AL154
Reason for activation After the time set in parameter “PAL21”, when the refrigerant detector warns about a leak.
Reset Always manual with parameter “PAL23” = “0”
Reset mode Manual
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
Dampers and ventilation
When operating fully with outside air and if the digital OK signal for one area damper and
additional ventilation are not featured in the unit.
Other devices All disabled
Refrigerant leak sensor - Malfunction alarm
Alarm code AL151
Reason for activation When the controller identifies a sensor malfunction.
Reset After the sensor is back to normal operating conditions.
Reset mode Manual
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
Dampers and ventilation
When operating fully with outside air and if the digital OK signal for one area damper and
additional ventilation are not featured in the unit.
Other devices They follow their control
Refrigerant leak sensor - Maintenance almost required
Alarm code AL152
Reason for activation Sensor replacement is close to being needed.
Reset After sensor replacement
Reset mode Manual
Alarm icon Flashing
AlarmLog Yes
Alarm relay Based on “alarm.conf” file
Devices Behaviour in the event of an alarm
Other devices Warning only (all devices follow their setting)
4 Alarms