Daikin 2MXS-N Series Service Manual page 4

3. Control Specification .................................................................................60
Part 5 Remote Controller ............................................................... 78
1. CTXS, FTXS Series ..................................................................................79
2. CDXS, FDXS Series .................................................................................81
3. FVXS Series..............................................................................................83
4. FFQ Series................................................................................................85
Part 6 Service Diagnosis................................................................ 97
1. General Problem Symptoms and Check Items .........................................99
2. Troubleshooting with LED .......................................................................100
3. Service Diagnosis ................................................................................... 102
4. Code Indication on Remote Controller .................................................... 114
5. Troubleshooting for CTXS, FTXS, CDXS, FDXS, FVXS Series ............. 116
iii
2.3 Freeze Prevention Control ......................................................................... 58
2.4 Hot Start Control (In Heating Operation Only)............................................ 59
3.1 Function of Thermistor ............................................................................... 60
3.2 Mode Hierarchy .......................................................................................... 62
3.3 Frequency Control...................................................................................... 63
3.4 Controls at Mode Changing / Start-up........................................................ 65
3.5 Discharge Pipe Temperature Control......................................................... 66
3.6 Input Current Control.................................................................................. 67
3.7 Freeze-up Protection Control ..................................................................... 68
3.8 Heating Peak-cut Control ........................................................................... 68
3.9 Outdoor Fan Control................................................................................... 69
3.10 Liquid Compression Protection Function.................................................... 69
3.11 Defrost Control ........................................................................................... 70
3.12 Low Hz High Pressure Limit ....................................................................... 71
3.13 Electronic Expansion Valve Control ........................................................... 72
3.14 Malfunctions ............................................................................................... 77
4.1 <BRC1E71> Wired Remote Controller....................................................... 85
4.2 <BRC1E72/73> Wired Remote Controller.................................................. 90
4.3 <BRC7E830> Wireless Remote Controller ................................................ 96
2.1 Indoor Unit................................................................................................ 100
2.2 Outdoor Unit ............................................................................................. 101
3.1 CTXS, FTXS, CDXS, FDXS, FVXS Series .............................................. 102
3.2 FFQ Series ............................................................................................... 108
4.1 CTXS, FTXS, CDXS, FDXS, FVXS Series .............................................. 114
4.2 FFQ Series ............................................................................................... 114
4.3 Outdoor Unit ............................................................................................. 115
5.1 Indoor Unit PCB Abnormality ................................................................... 116
5.2 Freeze-up Protection Control / Heating Peak-cut Control ........................ 118
5.3 Fan Motor or Related Abnormality ........................................................... 119
5.4 Thermistor or Related Abnormality........................................................... 123
5.5 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)........ 124
5.6 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) ................. 126
SiUS121502E
Table of Contents