SiBE121135
iii Table of Contents
1.8 Automatic Operation...............................................................................86
1.9 Thermostat Control.................................................................................87
1.10 NIGHT SET Mode ..................................................................................89
1.11 ECONO Operation .................................................................................90
1.12 HOME LEAVE Operation .......................................................................91
1.13 INTELLIGENT EYE Operation ...............................................................92
1.14 2-Area INTELLIGENT EYE Operation ...................................................93
1.15 Inverter POWERFUL Operation .............................................................95
1.16 Multi-Colored Indicator Lamp / TIMER Lamp .........................................95
1.17 Other Functions......................................................................................97
2. Indoor Unit Control (SA Models) ...........................................................99
2.1 Drain Pump Control................................................................................99
2.2 Thermostat Sensor in Remote Controller.............................................101
2.3 Freeze Prevention Control ...................................................................103
2.4 Hot Start Control (In Heating Operation Only)......................................104
3. Function of Thermistor ........................................................................105
4. Control Specification ...........................................................................107
4.1 Mode Hierarchy ....................................................................................107
4.2 Frequency Control................................................................................108
4.3 Controls at Mode Changing / Start-up..................................................111
4.4 Discharge Pipe Temperature Control...................................................112
4.5 Input Current Control............................................................................113
4.6 Freeze-up Protection Control ...............................................................113
4.7 Heating Peak-cut Control .....................................................................114
4.8 Outdoor Fan Control.............................................................................115
4.9 Liquid Compression Protection Function..............................................115
4.10 Defrost Control .....................................................................................116
4.11 Low Hz High Pressure Limit .................................................................117
4.12 Outdoor Electronic Expansion Valve Control .......................................117
4.13 Malfunctions .........................................................................................122
Part 5 Operation Manual ........................................................... 124
1. System Configuration..........................................................................125
2. RA Indoor Unit.....................................................................................126
2.1 FTXG, FTXS-K, CTXS, FVXG Series - ARC466A1, A2, A6 ................126
2.2 FTXS-J, FTXS-G, FVXS Series - ARC452A1, A3................................178
2.3 FLXS, FDXS Series - ARC433B67, B69 ..............................................218
3. SA Indoor Unit.....................................................................................233
3.1 BRC1D528 ...........................................................................................233
Part 6 Service Diagnosis...........................................................248
1. Troubleshooting with LED ...................................................................250
1.1 Indoor Unit............................................................................................250
1.2 Outdoor Unit .........................................................................................252
2. Problem Symptoms and Measures .....................................................253
3. Service Check Function ......................................................................254
3.1 RA Indoor Unit - FTXG, FTXS, CTXS, FVXG, FVXS, FLXS,
FDXS Series.........................................................................................254
3.2 SA Indoor Unit - FCQG, FFQ, FHQ, FDBQ, FBQ Series .....................263
4. Code Indication on Remote Controller ................................................267
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