High Pressure Control In Cooling - Daikin G-Series Service Manual

SiBE04-808_B

4.15 High Pressure Control in Cooling

F6
Remote
Controller
Display
Method of High-pressure control (operation halt, frequency drop, etc.) is activated in cooling operation if
the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit.
Malfunction
Detection
Malfunction
Decision
Conditions
RK(X)S20-35G2V1B, ARXS20-35G2V1B
RK(X)S20-35G2V1B9, ARXS20-35G3V1B
RK(X)S42G2V1B, ARXS42G2V1B
RK(X)S50G2V1B, ARXS50G2V1B
Supposed
Causes
Service Diagnosis
The temperature sensed by the outdoor heat exchanger thermistor rises above A °C.
The error is cleared when the temperature drops below B °C.
The installation space is not large enough.
Dirty outdoor heat exchanger
Defective outdoor fan motor
Defective stop valve
Defective electronic expansion valve or coil
Defective outdoor heat exchanger thermistor
Defective outdoor unit PCB
A (°C) B (°C)
65 54
65 52
65 53
65 51
Troubleshooting
122