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

SiBE12-522
1. Main Functions......................................................................................50
2. Function of Main Structural Parts..........................................................65
3. Control Specification .............................................................................70
Function and Control
Function and Control
1.1 Frequency Principle................................................................................50
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........52
1.3 Fan Speed Control for Indoor Units........................................................53
1.4 Programme Dry Function .......................................................................54
1.5 Automatic Operation...............................................................................55
1.6 Thermostat Control.................................................................................56
1.7 Night Set Mode.......................................................................................57
1.8 ECONO Mode ........................................................................................58
1.9 INTELLIGENT EYE ................................................................................59
1.10 HOME LEAVE Operation .......................................................................61
1.11 Inverter POWERFUL Operation .............................................................62
1.12 Other Functions......................................................................................63
2.1 Main Structural Parts..............................................................................65
2.2 Function of Thermistor ...........................................................................66
3.1 Mode Hierarchy ......................................................................................70
3.2 Frequency Control..................................................................................71
3.3 Controls at Mode Changing / Start-up....................................................73
3.4 Discharge Pipe Control ..........................................................................74
3.5 Input Current Control..............................................................................74
3.6 Freeze-up Protection Control .................................................................75
3.7 Heating Peak-cut Control .......................................................................75
3.8 Fan Control.............................................................................................76
3.9 Liquid Compression Protection Function 2.............................................76
3.10 Defrost Control .......................................................................................77
3.11 Low Hz High Pressure Limit ...................................................................78
3.12 Electronic Expansion Valve Control .......................................................78
3.13 Malfunctions ...........................................................................................82
3.14 Forced Operation Mode .........................................................................83
3.15 Wiring-Error Check.................................................................................84
3.16 Additional Function.................................................................................86
Part 4
49