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SiUS12-928_B
Function and Control
34
Part 4
Function and Control
1. Main Functions..........................................................................................35
1.1
Temperature Control .................................................................................. 35
1.2
Frequency Principle.................................................................................... 35
1.3
Airflow Direction Control (CTXS/FTXS Series) .......................................... 37
1.4
Fan Speed Control for Indoor Unit ............................................................. 39
1.5
Program Dry Operation .............................................................................. 40
1.6
Automatic Operation................................................................................... 41
1.7
Thermostat Control..................................................................................... 42
1.8
NIGHT SET Mode ...................................................................................... 44
1.9
ECONO Operation ..................................................................................... 45
1.10 HOME LEAVE Operation ........................................................................... 46
1.11 INTELLIGENT EYE Operation (CTXS/FTXS Series)................................. 47
1.12 Inverter POWERFUL Operation ................................................................. 48
1.13 Other Functions.......................................................................................... 49
2. Function of Thermistor ..............................................................................51
3. Control Specification .................................................................................54
3.1
Mode Hierarchy .......................................................................................... 54
3.2
Frequency Control...................................................................................... 55
3.3
Controls at Mode Changing / Start-up........................................................ 57
3.4
Discharge Pipe Temperature Control......................................................... 58
3.5
Input Current Control.................................................................................. 59
3.6
Freeze-up Protection Control ..................................................................... 59
3.7
Heating Peak-cut Control ........................................................................... 60
3.8
Outdoor Fan Control................................................................................... 61
3.9
Liquid Compression Protection Function.................................................... 61
3.10 Defrost Control ........................................................................................... 62
3.11 Low Hz High Pressure Limit ....................................................................... 63
3.12 Outdoor Electronic Expansion Valve Control ............................................. 63
3.13 Malfunctions ............................................................................................... 68