Part 4 Function And Control - Daikin FTXS20K2V1B Service Manual

1. Main Functions......................................................................................11
2. Function of Thermistor ..........................................................................23
3. Control Specification .............................................................................24
10
Function and Control
1.1 Temperature Control ..............................................................................11
1.2 Frequency Principle................................................................................11
1.3 Airflow Direction Control.........................................................................13
1.4 Fan Speed Control for Indoor Unit .........................................................14
1.5 Program Dry Operation ..........................................................................15
1.6 Automatic Operation...............................................................................16
1.7 Thermostat Control.................................................................................17
1.8 NIGHT SET Mode ..................................................................................18
1.9 ECONO Operation .................................................................................19
1.10 INTELLIGENT EYE Operation ...............................................................20
1.11 Inverter POWERFUL Operation .............................................................21
1.12 Other Functions......................................................................................22
3.1 Mode Hierarchy ......................................................................................24
3.2 Frequency Control..................................................................................25
3.3 Controls at Mode Changing / Start-up....................................................27
3.4 Discharge Pipe Temperature Control.....................................................28
3.5 Input Current Control..............................................................................29
3.6 Freeze-up Protection Control .................................................................30
3.7 Heating Peak-cut Control .......................................................................30
3.8 Outdoor Fan Control...............................................................................31
3.9 Liquid Compression Protection Function................................................31
3.10 Defrost Control .......................................................................................32
3.11 Electronic Expansion Valve Control .......................................................33
3.12 Malfunctions ...........................................................................................36
SiBE041134
Part 4
Function and Control