SiBE041101
Table of Contents iv
5.2 Electronic Expansion Valve Check.......................................................123
5.3 Four Way Valve Performance Check ...................................................124
5.4 Thermistor Resistance Check ..............................................................125
5.5 Installation Condition Check.................................................................126
5.6 Discharge Pressure Check...................................................................126
5.7 Outdoor Fan System Check .................................................................127
5.8 Power Supply Waveforms Check.........................................................127
5.9 Inverter Units Refrigerant System Check .............................................127
5.10 Capacitor Voltage Check......................................................................128
5.11 Power Module Check ...........................................................................128
5.12 “Inverter Checker” Check .....................................................................129
5.13 Rotation Pulse Check on the Outdoor Unit PCB ..................................131
5.14 Main Circuit Short Check......................................................................132
Part 7 Removal Procedure ........................................................ 133
1. Indoor Unit...........................................................................................134
1.1 Removal of Air Filters ...........................................................................134
1.2 Removal of Front Panel........................................................................136
1.3 Removal of Front Grille ........................................................................138
1.4 Removal of Horizontal Blades / Vertical Blades ...................................141
1.5 Removal of Electrical Box ....................................................................144
1.6 Removal of PCBs .................................................................................147
1.7 Removal of Indoor Heat Exchanger .....................................................152
1.8 Removal of Swing Motors ....................................................................155
1.9 Removal of Fan Motor..........................................................................159
2. Outdoor Unit - RK(X)S20/25/35J2V1B................................................162
2.1 Removal of Outer Panels / Fan Motor..................................................162
2.2 Removal of Electrical Box ....................................................................171
2.3 Removal of PCBs .................................................................................174
2.4 Removal of Reactor / Partition Plate ....................................................182
2.5 Removal of Sound Blankets .................................................................184
2.6 Removal of Four Way Valve.................................................................186
2.7 Removal of Compressor.......................................................................189
3. Outdoor Unit - RK(X)S42J2V1B..........................................................191
3.1 Removal of Outer Panels .....................................................................191
3.2 Removal of Electrical Box ....................................................................193
3.3 Removal of PCB...................................................................................198
3.4 Removal of Sound Blankets .................................................................203
3.5 Removal of Outdoor Fan / Fan Motor...................................................205
3.6 Removal of Thermistors .......................................................................208
3.7 Removal of Four Way Valve / Electronic Expansion Valve ..................209
3.8 Removal of Compressor.......................................................................212
4. Outdoor Unit - RK(X)S50J2V1B..........................................................215
4.1 Removal of Outer Panels .....................................................................215
4.2 Removal of Outdoor Fan / Fan Motor...................................................219
4.3 Removal of Electrical Box ....................................................................223
4.4 Removal of PCB...................................................................................228
4.5 Removal of Sound Blankets / Thermistors ...........................................231
4.6 Removal of Four Way Valve.................................................................233
4.7 Removal of Electronic Expansion Valve...............................................234
4.8 Removal of Compressor.......................................................................235
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