Daikin FTKS20DVMW [31/205] Part 4 function and control

SiEBE04-507

Function and Control 21

Part 4

Function and Control

1. Main Functions......................................................................................22

1.1 Frequency Principle................................................................................22

1.2 Air Flow Direction Control.......................................................................24

1.3 Fan Speed Control for Indoor Units........................................................25

1.4 Programme Dry Function .......................................................................26

1.5 Automatic Operation...............................................................................27

1.6 Thermostat Control.................................................................................28

1.7 NIGHT SET Mode ..................................................................................29

1.8 ECONO Mode ........................................................................................30

1.9 INTELLIGENT EYE ................................................................................31

1.10 Inverter POWERFUL Operation .............................................................33

1.11 Other Functions......................................................................................34

2. Function of Thermistor ..........................................................................35

2.1 Heat Pump Model...................................................................................35

2.2 Cooling Only Model ................................................................................36

3. Control Specification .............................................................................37

3.1 Mode Hierarchy ......................................................................................37

3.2 Frequency Control..................................................................................38

3.3 Controls at Mode Changing / Start-up....................................................40

3.4 Discharge Pipe Control ..........................................................................41

3.5 Input Current Control..............................................................................42

3.6 Freeze-up Protection Control .................................................................43

3.7 Heating Peak-cut Control .......................................................................43

3.8 Fan Control.............................................................................................44

3.9 Liquid Compression Protection Function 2.............................................44

3.10 Defrost Control .......................................................................................45

3.11 Electronic Expansion Valve Control .......................................................46

3.12 Malfunctions ...........................................................................................49

3.13 Forced Operation Mode .........................................................................50

3.14 Additional Function.................................................................................50

3.15 Facility Setting Jumper (cooling at low outdoor temperature) ................51