SiBE04-809
Troubleshooting
Service Diagnosis
79
4.3
Freeze-up Protection Control
or
High Pressure Control
Remote
Controller
Display
A5
Method of
Malfunction
Detection
High pressure control (heat pump model only)
During heating operations, the temperature detected by the indoor heat exchanger
thermistor is used for the high pressure control (stop, outdoor fan stop, etc.)
Freeze-up protection control (operation halt) is activated during cooling operation according
to the temperature detected by the indoor unit heat exchanger thermistor.
Malfunction
Decision
Conditions
High pressure control
During heating operations, the temperature detected by the indoor heat exchanger
thermistor is above 65°C
Freeze-up protection
When the indoor unit heat exchanger temperature is below 0°C during cooling operation.
Supposed
Causes
Operation halt due to clogged air filter of the indoor unit.
Operation halt due to dust accumulation on the indoor unit heat exchanger.
Operation halt due to short-circuit.
Detection error due to faulty indoor unit heat exchanger thermistor.
Detection error due to faulty indoor unit PCB.
Содержание ARXG25E3V1B
Страница 1: ...SiBE04 809 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type E Series ...
Страница 11: ...Introduction SiBE04 809 x ...
Страница 12: ...SiBE04 809 List of Functions 1 Part 1 List of Functions 1 List of Functions 2 ...
Страница 14: ...SiBE04 809 Specifications 3 Part 2 Specifications 1 Specifications 4 ...
Страница 23: ...Printed Circuit Board Connector Wiring Diagram SiBE04 809 12 Printed Circuit Board Connector Wiring Diagram ...
Страница 207: ...Wiring Diagrams SiBE04 809 196 Appendix ...