R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
50
Pb: System anti-frozen protection
P8: Inlet water temperature protection (three times in one hour and system should be powered on again). At
spot checking time, the wired controller displays P4
-----Refer to the P4 to solve the problem.
Check whether the circulation water is insufficient:
(Q<0.6×Q
rated
).
Check the water system and make
adjustment.
Check whether the plate heat exchanger temperature
sensor is abnormal.
Replace the temperature sensor.
Check whether the ambient temperature is too low (in
cooling mode).
Adjust outdoor fan and increase the outdoor
air flow.
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