Daikin FTXS50FVLT [38/244] Part 4 function and control

Si04-703A

Function and Control 27

Part 4

Function and Control

1. Main Functions......................................................................................28

1.1 Frequency Principle................................................................................28

1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........30

1.3 Fan Speed Control for Indoor Units........................................................31

1.4 Programme Dry Function .......................................................................32

1.5 Automatic Operation...............................................................................33

1.6 Thermostat Control.................................................................................34

1.7 Night Set Mode.......................................................................................35

1.8 INTELLIGENT EYE ................................................................................36

1.9 HOME LEAVE Operation .......................................................................38

1.10 Inverter POWERFUL Operation .............................................................39

1.11 Other Functions......................................................................................40

2. Function of Thermistor ..........................................................................42

2.1 Heat Pump Model...................................................................................42

2.2 Cooling Only Model ................................................................................43

3. Control Specification .............................................................................44

3.1 Mode Hierarchy ......................................................................................44

3.2 Frequency Control..................................................................................45

3.3 Controls at Mode Changing / Start-up....................................................47

3.4 Discharge Pipe Temperature Control.....................................................48

3.5 Input Current Control..............................................................................49

3.6 Freeze-up Protection Control .................................................................50

3.7 Heating Peak-cut Control .......................................................................50

3.8 Fan Control.............................................................................................51

3.9 Liquid Compression Protection Function 2.............................................51

3.10 Defrost Control .......................................................................................52

3.11 Electronic Expansion Valve Control .......................................................53

3.12 Malfunctions ...........................................................................................56

3.13 Forced Operation Mode .........................................................................57

3.14 Additional Function.................................................................................57