The heat pump features protective logic to ensure the compressor discharge temperature remains within permissible limits.
How the compressor is protected
The controller can reduce speed, limit the load, or temporarily stop the unit.
Potential causes of high temperature
Very low ambient temperature, high flow temperature, incorrect refrigerant charge, or flow problems can contribute to this.
Alarm
If a relevant code appears, the protection limits should not be increased arbitrarily.
Proper diagnosis
Actual temperatures, pressures, and operating conditions should be checked based on the service manual.
