Part 4 Function And Control - Daikin BA-Series Service Manual

SiBE05-722ED
1. Main Functions......................................................................................27
2. Function of Thermistor ..........................................................................38
3. Control Specification .............................................................................39
Function and Control
Function and Control
1.1 Temperature Control ..............................................................................27
1.2 Frequency Principle................................................................................27
1.3 Airflow Direction Control.........................................................................29
1.4 Fan Speed Control for Indoor Unit .........................................................29
1.5 Program Dry Operation ..........................................................................30
1.6 Automatic Operation...............................................................................31
1.7 Thermostat Control.................................................................................32
1.8 NIGHT SET Mode ..................................................................................33
1.9 HOME LEAVE Operation .......................................................................34
1.10 Inverter POWERFUL Operation .............................................................35
1.11 Clock Setting ..........................................................................................36
1.12 Other Functions......................................................................................37
3.1 Mode Hierarchy ......................................................................................39
3.2 Frequency Control..................................................................................40
3.3 Controls at Mode Changing / Start-up....................................................42
3.4 Discharge Pipe Temperature Control.....................................................44
3.5 Input Current Control..............................................................................45
3.6 Freeze-up Protection Control .................................................................46
3.7 Heating Peak-cut Control .......................................................................46
3.8 Outdoor Fan Control...............................................................................47
3.9 Liquid Compression Protection Function................................................47
3.10 Defrost Control .......................................................................................48
3.11 Electronic Expansion Valve Control .......................................................49
3.12 Malfunctions ...........................................................................................52
Part 4
26