SiBE01-829
Troubleshooting
Service Diagnosis
45
4.3
Freeze-up Protection Control
,
High Pressure Control
or
Indoor Heat Exchanger Thermistor Abnormality
Remote
Controller
Display
A5
Method of
Malfunction
Detection
High pressure control
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.
The temperature detected by the indoor heat exchanger thermistor is used to determine
thermistor error.
Malfunction
Decision
Conditions
High pressure control
During heating operations, the temperature detected by the indoor heat exchanger
thermistor is above 68°C.
Freeze-up protection
When the indoor unit heat exchanger temperature is below 1°C during cooling operation.
Indoor Heat Exchanger Thermistor Abnormality
When the input voltage of thermistor during the compressor is operating is 4.96V or more.
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.
Stop valve closed.
Содержание FTY25GXV1
Страница 1: ...SiBE01 829 Applied Models Non Inverter Pair Heat Pump SPLIT Pair Wall Mounted Type G Series ...
Страница 5: ...SiBE01 829 iv Table of Contents Index i Drawings Flow Charts iii ...
Страница 11: ...Introduction SiBE01 829 x ...
Страница 12: ...SiBE01 829 List of Function 1 Part 1 List of Function 1 Functions 2 ...
Страница 15: ...Functions SiBE01 829 4 List of Function ...
Страница 16: ...SiBE01 829 Specifications 5 Part 2 Specifications 1 Specifications 6 ...
Страница 19: ...Specifications SiBE01 829 8 Specifications ...
Страница 23: ...Printed Circuit Board Connector Wiring Diagram SiBE01 829 12 Printed Circuit Board Connector Wiring Diagram ...
Страница 49: ...Instructions SiBE01 829 38 Operation Manual ...
Страница 69: ...Check SiBE01 829 58 Service Diagnosis ...
Страница 107: ...Outdoor Unit SiBE01 829 96 Removal Procedure 10 Remove the electrical box Step Procedure Points R8556 ...
Страница 111: ...Outdoor Unit SiBE01 829 100 Removal Procedure ...
Страница 112: ...SiBE01 829 Others 101 Part 8 Others 1 Others 102 1 1 Trial Operation and Testing 102 1 2 Pump Down Operation 102 ...
Страница 119: ...Wiring Diagrams SiBE01 829 108 Appendix ...
Страница 123: ...SiBE01 829 iv Drawings Flow Charts ...