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Si12-619A
iv
Table of Contents
3.4
Discharge Pipe Temperature Control...................................................104
3.5
Input Current Control............................................................................104
3.6
Freeze-up Protection Control ...............................................................105
3.7
Heating Peak-cut Control .....................................................................105
3.8
Fan Control...........................................................................................106
3.9
Liquid Compression Protection Function 2...........................................106
3.10 Defrost Control .....................................................................................107
3.11 Low Hz High Pressure Limit .................................................................108
3.12 Electronic Expansion Valve Control .....................................................108
3.13 Malfunctions .........................................................................................112
3.14 Forced Operation Mode .......................................................................113
3.15 Wiring-Error Check...............................................................................114
3.16 Additional Function...............................................................................116
Part 5 Operation Manual ...........................................................119
1. System Configuration..........................................................................120
1.1
Operation Instructions ..........................................................................120
2. Instruction............................................................................................121
2.1
FTK(X)S, CDK(X)S, FDK(X)S, FLXS, FVXS Series.............................121
2.2
FFQ 25/35/50/60 B...............................................................................189
Part 6 Service Diagnosis...........................................................201
1. Caution for Diagnosis.........................................................................202
1.1
Troubleshooting with Operation Lamp .................................................202
2. Problem Symptoms and Measures .....................................................204
3. Service Check Function ......................................................................205
4. Code Indication on the Remote Controller ..........................................208
4.1
Error Codes and Description of Fault ...................................................208
5. Troubleshooting ..................................................................................209
5.1
Indoor Units ..........................................................................................209
5.2
Outdoor Units .......................................................................................210
5.3
Indoor Unit PCB Abnormality ...............................................................211
5.4
Freeze-up Protection Control or High Pressure Control.......................212
5.5
Fan Motor or Related Abnormality .......................................................214
5.6
Thermistor or Related Abnormality (Indoor Unit)..................................217
5.7
Shutter Drive Motor / Shutter Limit Switch Abnormality .......................218
5.8
Signal Transmission Error (between Indoor and Outdoor Units)..........219
5.9
Unspecified Voltage (between Indoor and Outdoor Units) ...................221
5.10 Freeze-up Protection Control ...............................................................222
5.11 Outdoor Unit PCB Abnormality.............................................................224
5.12 OL Activation (Compressor Overload) .................................................225
5.13 Compressor Lock .................................................................................226
5.14 DC Fan Lock ........................................................................................228
5.15 Input Over Current Detection ...............................................................229
5.16 Four Way Valve Abnormality................................................................231
5.17 Discharge Pipe Temperature Control...................................................233
5.18 High Pressure Control in Cooling .........................................................234
5.19 Compressor Sensor System Abnormality ............................................236
5.20 Position Sensor Abnormality ................................................................238
5.21 CT or Related Abnormality ...................................................................239
Summary of Contents for 3MKS50DVM
Page 13: ...Introduction Si12 619A xii ...
Page 131: ...Control Specification Si12 619A 118 Function and Control ...
Page 213: ...Instruction Si12 619A 200 Operation Manual ...
Page 283: ...Check Si12 619A 270 Service Diagnosis ...
Page 302: ...Si12 619A Outdoor Unit E Series 50 52 58 Class Removal Procedure 289 Step Procedure Points ...
Page 385: ...Wiring Diagrams Si12 619A 372 Appendix FTK X S50 60 71FVLT ...
Page 399: ...Si12 619A vi Index ...