Daikin CTXS07LVJU Service Manual page 4

3. Control Specification .................................................................................58
Part 5 Remote Controller ............................................................... 76
1. CTXS, FTXS Series ..................................................................................77
2. CDXS, FDXS Series .................................................................................79
3. FVXS Series..............................................................................................81
4. FFQ Series................................................................................................83
Part 6 Service Diagnosis................................................................ 95
1. General Problem Symptoms and Check Items .........................................97
2. Troubleshooting with LED .........................................................................98
3. Service Diagnosis ................................................................................... 100
4. Code Indication on Remote Controller .................................................... 112
5. Troubleshooting for CTXS, FTXS, CDXS, FDXS, FVXS Series ............. 114
iii
2.3 Freeze Prevention Control ......................................................................... 56
2.4 Hot Start Control (In Heating Operation Only)............................................ 57
3.1 Thermistor Functions.................................................................................. 58
3.2 Mode Hierarchy .......................................................................................... 60
3.3 Frequency Control...................................................................................... 61
3.4 Controls at Mode Changing/Start-up.......................................................... 63
3.5 Discharge Pipe Temperature Control......................................................... 64
3.6 Input Current Control.................................................................................. 65
3.7 Freeze-up Protection Control ..................................................................... 66
3.8 Heating Peak-cut Control ........................................................................... 66
3.9 Outdoor Fan Control................................................................................... 67
3.10 Liquid Compression Protection Function.................................................... 67
3.11 Defrost Control ........................................................................................... 68
3.12 Low Hz High Pressure Limit ....................................................................... 69
3.13 Electronic Expansion Valve Control ........................................................... 70
3.14 Malfunctions ............................................................................................... 75
4.1 <BRC1E71> Wired Remote Controller....................................................... 83
4.2 <BRC1E72/73> Wired Remote Controller.................................................. 88
4.3 <BRC7E830> Wireless Remote Controller ................................................ 94
2.1 Indoor Unit.................................................................................................. 98
2.2 Outdoor Unit ............................................................................................... 99
3.1 CTXS, FTXS, CDXS, FDXS, FVXS Series .............................................. 100
3.2 FFQ Series ............................................................................................... 106
4.1 CTXS, FTXS, CDXS, FDXS, FVXS Series .............................................. 112
4.2 FFQ Series ............................................................................................... 112
4.3 Outdoor Unit ............................................................................................. 113
5.1 Indoor Unit PCB Abnormality ................................................................... 114
5.2 Freeze-up Protection Control/Heating Peak-cut Control .......................... 116
5.3 Fan Motor or Related Abnormality ........................................................... 117
5.4 Thermistor or Related Abnormality........................................................... 121
5.5 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)........ 122
5.6 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) ................. 124
SiUS121602E
Table of Contents