Part 4 Function And Control - Daikin FTXN25KEV1B Service Manual

SiBE041102_A
1. Main Functions......................................................................................10
2. Function of Thermistor ..........................................................................21
3. Control Specification .............................................................................22
Function and Control
Function and Control
1.1 Temperature Control ..............................................................................10
1.2 Frequency Principle................................................................................10
1.3 Airflow Direction Control.........................................................................12
1.4 Fan Speed Control for Indoor Unit .........................................................13
1.5 Program Dry Operation ..........................................................................14
1.6 Automatic Operation...............................................................................15
1.7 Thermostat Control.................................................................................16
1.8 NIGHT SET Mode ..................................................................................17
1.9 ECONO Operation .................................................................................18
1.10 Inverter POWERFUL Operation .............................................................19
1.11 Other Functions......................................................................................20
3.1 Mode Hierarchy ......................................................................................22
3.2 Frequency Control..................................................................................23
3.3 Controls at Mode Changing / Start-up....................................................25
3.4 Discharge Pipe Temperature Control.....................................................26
3.5 Input Current Control..............................................................................27
3.6 Freeze-up Protection Control .................................................................28
3.7 Heating Peak-cut Control .......................................................................28
3.8 Outdoor Fan Control...............................................................................29
3.9 Liquid Compression Protection Function................................................29
3.10 Defrost Control .......................................................................................30
3.11 Electronic Expansion Valve Control .......................................................31
3.12 Malfunctions ...........................................................................................34
Part 4
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