SIE-86
Table of Contents iii
5.2 Outdoor Units ........................................................................................ 58
5.3 Faulty PCB ............................................................................................ 59
5.4 Operation Shutdown Due to High-Pressure Control
or Freeze-Up Protection (Thermistor Activation).................................. 60
5.5 Operation Halt Due to Fan Motor (AC Motor) or Related Abnormality. . 61
5.6 Operation Halt Due to Detection of Thermistor or Related Abnormality 62
5.7 Faulty Indoor Unit PCB.......................................................................... 63
5.8 Faulty Indoor Unit PCB.......................................................................... 64
5.9 Power Supply Abnormalities or Faulty Indoor Printed Circuit Boards ... 65
5.10 Signal Transmission Error (Between Indoor and Outdoor Units) .......... 66
5.11 Operation Halt Due to Detection of CT Error......................................... 67
5.12 Operation Halt Due to Thermistor Error or Disconnection Detection..... 68
5.13 Operation Halt Due to Compressor Startup Error.................................. 69
5.14 Output Overcurrent................................................................................ 70
5.15 Faulty Outdoor Unit PCB....................................................................... 72
5.16 Faulty Outdoor Unit PCB and Transmitting/Receiving Circuit ............... 73
5.17 Operation Halt Due to Detection of Input Over Current......................... 74
6. Check....................................................................................................76
6.1 How to Check ........................................................................................ 76
Part 6 Removal Procedure..........................................................85
1. For FTK25J, FTK35J, FTX25J, FTX35J ...............................................86
1.1 Removal of Air Filter.............................................................................. 86
1.2 Removal of Front Grille.......................................................................... 88
1.3 Removal of Horizontal Blade and Vertical Blade................................... 90
1.4 Removal of Switch Box, PC Board and Swing Motor............................ 92
1.5 Removal of Heat Exchanger.................................................................. 97
1.6 Install of Drain Plug ............................................................................... 99
1.7 Removal of Fan Rotor and Motor ........................................................ 100
2. For RK25J, RK35J, RX25J, RX35J.....................................................103
2.1 Removal of External Casing................................................................ 103
2.2 Removal of Bellmouth and Left Side Plate.......................................... 105
2.3 Removal of PC Board and Switch Box................................................ 106
2.4 Removal of Propeller Fan and Fan Motor ........................................... 111
2.5 Removal of Compressor Noise Absorption Pad.................................. 112
2.6 Removal of Partition Plate and Reactor. ............................................. 114
2.7 Removal of Four-way Valve. ............................................................... 116
2.8 Removal of Compressor...................................................................... 118
Part 7 Others .............................................................................119
1. Others .................................................................................................120
1.1 Explanation.......................................................................................... 120
Part 8 Appendix.........................................................................123
1. Piping Diagram....................................................................................124
1.1 Indoor Unit........................................................................................... 124
1.2 Outdoor Unit ........................................................................................ 125
2. Wiring Diagram ...................................................................................127
2.1 Indoor Unit........................................................................................... 127
2.2 Outdoor Unit ........................................................................................ 129
Si-86.book Page iii Friday, June 23, 2000 10:26 AM
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