Si01-406
Table of Contents iii
3.8 Liquid Compression Protection Function 1
(Securing of Differential Pressure and Blown Air Temperature) ............45
3.9 Liquid Compression Protection Function 2.............................................46
3.10 Defrost Control .......................................................................................46
3.11 Insufficient Gas Control ..........................................................................47
3.12 Forced Operation Mode .........................................................................48
3.13 Additional Function.................................................................................48
Part 5 System Configuration....................................................... 49
1. System Configuration............................................................................50
2. Instructions............................................................................................51
2.1 Manual Contents by Models...................................................................51
2.2 Safety Precautions .................................................................................52
2.3 Names of Parts.......................................................................................54
2.4 Preparation before Operation.................................................................63
2.5 AUTO • DRY • COOL • HEAT • FAN Operation .....................................66
2.6 Adjusting the Air Flow Direction .............................................................68
2.7 POWERFUL Operation ..........................................................................69
2.8 TIMER Operation ...................................................................................70
2.9 Care and Cleaning .................................................................................72
2.10 Troubleshooting......................................................................................78
Part 6 Service Diagnosis.............................................................81
1. Troubleshooting by Lamps....................................................................82
2. Problem and Solution............................................................................83
3. Service Check Function ........................................................................84
3.1 ARC423 Series Remote Controller ........................................................84
3.2 ARC433 Series Remote Controller ........................................................85
4. Troubleshooting ....................................................................................86
4.1 Error Codes ............................................................................................86
4.2 Indoor Unit PCB Abnormality .................................................................87
4.3 Freeze-up Protection Control or High Pressure Control.........................88
4.4 Fan Motor or Related Abnormality .........................................................90
4.5 Thermistor or Related Abnormality (Indoor Unit)....................................93
4.6 Indoor Unit PCB Abnormality .................................................................94
4.7 Signal Transmission Error (between Indoor and Outdoor Units)............95
4.8 OL Activation (Compressor Overload) ...................................................96
4.9 Compressor Lock ...................................................................................97
4.10 Input Over Current Detection .................................................................98
4.11 Four Way Valve Abnormality..................................................................99
4.12 High Pressure Control in Cooling .........................................................101
4.13 CT or Related Abnormality ...................................................................103
4.14 Thermistor or Related Abnormality (Outdoor Unit)...............................105
4.15 Electrical Box Temperature Rise..........................................................107
4.16 Radiation Fin Temperature Rise ..........................................................109
4.17 Output Over Current Detection.............................................................111
4.18 Insufficient Gas.....................................................................................113
5. Check ..................................................................................................115
5.1 Fan Motor Connector Output Check ....................................................115
5.2 Four Way Valve Performance Check ...................................................115
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