Part 4 Function And Control - Daikin FTXS09DVJU Service Manual

SiUS04-702
1. Main Functions......................................................................................... 19
2. Function of Thermistor ............................................................................. 33
3. Control Specification (09/12 Class).......................................................... 34
4. Control Specification (15/18/24 Class)..................................................... 47
Function and Control
Function and Control
1.1 Frequency Principle................................................................................... 19
1.2 Power-Airflow Dual Flaps, Wide-Angle Louvres and Auto-Swing ............. 21
1.3 Fan Speed Control for Indoor Units........................................................... 22
1.4 Programme Dry Function .......................................................................... 23
1.5 Automatic Operation.................................................................................. 24
1.6 Thermostat Control.................................................................................... 25
1.7 NIGHT SET Mode ..................................................................................... 26
1.8 INTELLIGENT EYE ................................................................................... 27
1.9 HOME LEAVE Operation .......................................................................... 29
1.10 Inverter POWERFUL Operation ................................................................ 30
1.11 Other Functions......................................................................................... 31
2.1 Heat Pump Model...................................................................................... 33
3.1 Mode Hierarchy ......................................................................................... 34
3.2 Frequency Control..................................................................................... 35
3.3 Controls at Mode Changing / Start-up....................................................... 37
3.4 Discharge Pipe Temperature Control........................................................ 38
3.5 Input Current Control................................................................................. 39
3.6 Freeze-up Protection Control .................................................................... 39
3.7 Heating Peak-cut Control .......................................................................... 40
3.8 Fan Control................................................................................................ 40
3.9 Liquid Compression Protection Function 2................................................ 40
3.10 Defrost Control .......................................................................................... 41
3.11 Electronic Expansion Valve Control .......................................................... 42
3.12 Malfunctions .............................................................................................. 45
3.13 Forced Operation Mode ............................................................................ 46
3.14 Additional Function.................................................................................... 46
4.1 Mode Hierarchy ......................................................................................... 47
4.2 Frequency Control..................................................................................... 48
4.3 Controls at Mode Changing / Start-up....................................................... 50
4.4 Discharge Pipe Temperature Control........................................................ 51
4.5 Input Current Control................................................................................. 52
4.6 Freeze-up Protection Control .................................................................... 53
4.7 Heating Peak-cut Control .......................................................................... 53
4.8 Fan Control................................................................................................ 54
4.9 Liquid Compression Protection Function 2................................................ 54
4.10 Low Hz High Pressure Limit ...................................................................... 55
4.11 Defrost Control .......................................................................................... 55
Part 4
17