Si12-714
iv Table of Contents
5.11 Compressor Lock .................................................................................192
5.12 DC Fan Lock ........................................................................................193
5.13 Input Over Current Detection ...............................................................194
5.14 Four Way Valve Abnormality................................................................196
5.15 Discharge Pipe Temperature Control...................................................198
5.16 High Pressure Control in Cooling .........................................................199
5.17 Position Sensor Abnormality ................................................................201
5.18 CT or Related Abnormality...................................................................202
5.19 Thermistor or Related Abnormality (Outdoor Unit)...............................204
5.20 Electrical Box Temperature Rise..........................................................206
5.21 Radiation Fin Temperature Rise ..........................................................208
5.22 Output Over Current Detection.............................................................210
5.23 Insufficient Gas.....................................................................................212
5.24 Low-voltage Detection..........................................................................214
5.25 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units)....................................................215
6. Check..................................................................................................216
6.1 How to Check.......................................................................................216
Part 7 Removal Procedure ........................................................ 227
1. Outdoor Unit (100 Class) ....................................................................228
1.1 Removal of Outer Panels .....................................................................228
1.2 Removal of the Electrical Box ..............................................................245
1.3 Removal of PCB...................................................................................251
1.4 Removal of Fan Motor..........................................................................257
1.5 Removal of Coils / Thermistors ............................................................259
1.6 Removal of Reactor..............................................................................265
1.7 Removal of Sound Blanket...................................................................266
1.8 Removal of Compressor.......................................................................269
2. Outdoor Unit (80 / 90 Class) ...............................................................271
2.1 Removal of Outer Panels .....................................................................271
2.2 Removal of Propeller Fans...................................................................274
2.3 Removal of Electrical Box ....................................................................275
2.4 Removal of PCB...................................................................................282
2.5 Removal of Fan Motor..........................................................................285
2.6 Removal of Electronic Expansion Valve and Thermistor .....................287
2.7 Removal of Sound Blanket and Reactor ..............................................288
2.8 Removal of Shunt.................................................................................290
2.9 Removal of Solenoid Valve and Four Way Valve.................................291
2.10 Removal of Compressor.......................................................................293
3. Outdoor Unit (58 / 68 / 75 Class) ........................................................295
3.1 Removal of Outer Panels .....................................................................295
3.2 Removal of Electrical Box ....................................................................296
3.3 Removal of PCB...................................................................................300
3.4 Removal of Fan Motor..........................................................................303
3.5 Removal of Sound Blanket...................................................................304
3.6 Removal of Four Way Valve Coil, Solenoid Valve Coil,
Electronic Expansion Valve Coil and Thermistor .................................305
3.7 Removal of Four Way Valve, Solenoid Valve and Shunt .....................307
3.8 Removal of Solenoid Valve and Shunt.................................................308
3.9 Removal of Compressor.......................................................................309
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