DAMA-SM-21-003
Table of Contents
ii
Part 4 Remote Controller .............................................................47
1. Applicable Remote Controller ...............................................................48
2. BRC52B63/64 .......................................................................................49
Part 5 Service Diagnosis ..............................................................50
1. General Problem Symptoms and Check Items .....................................51
2. Troubleshooting with LED .....................................................................52
2.1
Indoor Unit..............................................................................................52
2.2
Outdoor Unit ...........................................................................................52
3. Error Diagnosis .....................................................................................53
3.1
To enter error diagnosis .........................................................................53
4. Troubleshooting ....................................................................................54
4.1
Error Codes and Description ..................................................................54
4.2
Indoor Unit PCB Abnormality .................................................................56
4.3
Freeze-up Protection Control .................................................................57
4.4
Indoor Fan Motor (DC Motor) or Related Abnormality ...........................58
4.5
Thermistor or Related Abnormality (Indoor Unit)....................................59
4.6
Thermistor or Related Abnormality (Indoor Unit)....................................60
4.7
Low-voltage Detection or Over-voltage Detection..................................61
4.8
Signal Transmission Error (Between Indoor Unit and Outdoor Unit)......62
4.9
Installation error......................................................................................64
4.10 Outdoor Unit PCB Abnormality...............................................................65
4.11 OL Activation (Compressor Overload) ...................................................66
4.12 Compressor Lock ...................................................................................68
4.13 DC Fan Lock ..........................................................................................69
4.14 Input Overcurrent Detection ...................................................................70
4.15 Discharge Pipe Temperature Control.....................................................71
4.16 High Pressure Control in Cooling ...........................................................72
4.17 Compressor System Sensor Abnormality ..............................................74
4.18 Position Sensor Abnormality ..................................................................75
4.19 Thermistor or Related Abnormality (Outdoor Unit) .................................76
4.20 Electrical Box Temperature Rise............................................................78
4.21 Radiation Fin Temperature Rise ............................................................79
4.22 Output Overcurrent Detection ................................................................80
4.23 Four Way Valve Abnormality..................................................................82
5. Actuator Check......................................................................................85
5.1
Thermistor Resistance Check ................................................................85
5.2
Power Supply Waveform Check.............................................................86
5.3
Electronic Expansion Valve Check.........................................................86
5.4
Four Way Valve Performance Check .....................................................87
5.5
Inverter Unit Refrigerant System Check.................................................88
5.6
Rotation Pulse Check on the Outdoor Unit PCB ....................................88
5.7
Installation Condition Check...................................................................89
5.8
Discharge Pressure Check.....................................................................89
5.9
Outdoor Fan System Check ...................................................................90
5.10 Main Circuit Short Check........................................................................90
5.11 Power Module Check .............................................................................91
DAMA-SM-21-003 -Inverter Multi Split-CTX Series.book Page ii Wednesday, September 1, 2021 5:44 PM
Содержание CTX Series
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