Si12-411A
iv Table of Contents
5.16 Discharge Pipe Temperature Control...................................................190
5.17 Position Sensor Abnormality ................................................................191
5.18 CT or Related Abnormality ...................................................................192
5.19 Thermistor or Related Abnormality (Outdoor Unit)...............................194
5.20 Electrical Box Temperature Rise..........................................................196
5.21 Radiation Fin Temperature Rise ..........................................................198
5.22 Output Over Current Detection.............................................................200
5.23 Insufficient Gas.....................................................................................202
5.24 Low-voltage Detection..........................................................................204
5.25 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units)....................................................205
6. Check ..................................................................................................206
6.1 How to Check .......................................................................................206
Part 7 Removal Procedure ........................................................ 217
1. Outdoor Unit (80 / 90 Class) ...............................................................218
1.1 Removal of Outer Panels .....................................................................218
1.2 Removal of Propeller Fans...................................................................221
1.3 Removal of Electrical Box ....................................................................222
1.4 Removal of PCB...................................................................................229
1.5 Removal of Fan Motor..........................................................................232
1.6 Removal of Electronic Expansion Valve and Thermistor .....................234
1.7 Removal of Sound Insulation and Reactor...........................................235
1.8 Removal of Shunt.................................................................................237
1.9 Removal of Solenoid Valve and Four Way Valve.................................238
1.10 Removal of Compressor.......................................................................240
2. Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) ..........................................242
2.1 Removal of Outer Panels .....................................................................242
2.2 Removal of Electrical BOX ...................................................................243
2.3 Removal of PCB...................................................................................247
2.4 Removal of Fan Motor..........................................................................250
2.5 Removal of Sound Insulation ...............................................................251
2.6 Removal of Four Way Valve Coil, Solenoid Valve Coil,
Electronic Expansion Valve Coil and Thermistor .................................252
2.7 Removal of Four Way Valve, Solenoid Valve and Shunt .....................254
2.8 Removal of Solenoid Valve and Shunt.................................................255
2.9 Removal of Compressor.......................................................................256
Part 8 Others ............................................................................. 257
1. Others .................................................................................................258
1.1 Test Run from the Remote Controller ..................................................258
1.2 Jumper Settings ...................................................................................259
Part 9 Appendix......................................................................... 261
1. Piping Diagrams..................................................................................262
1.1 Indoor Units ..........................................................................................262
1.2 Outdoor Units .......................................................................................266
2. Wiring Diagrams..................................................................................273
2.1 Indoor Units ..........................................................................................273
2.2 Outdoor Units .......................................................................................276
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