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

Si12-714
1. Main Functions......................................................................................56
2. Function of Main Structural Parts..........................................................71
3. Control Specification .............................................................................76
Function and Control
Function and Control
1.1 Frequency Principle................................................................................56
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........58
1.3 Fan Speed Control for Indoor Units........................................................59
1.4 Programme Dry Function .......................................................................60
1.5 Automatic Operation...............................................................................61
1.6 Thermostat Control.................................................................................62
1.7 Night Set Mode.......................................................................................63
1.8 ECONO Mode ........................................................................................64
1.9 MOLD PROOF Operation ......................................................................64
1.10 INTELLIGENT EYE ................................................................................65
1.11 HOME LEAVE Operation .......................................................................67
1.12 Inverter POWERFUL Operation .............................................................68
1.13 Other Functions......................................................................................69
2.1 Main Structural Parts..............................................................................71
2.2 Function of Thermistor ...........................................................................72
3.1 Mode Hierarchy ......................................................................................76
3.2 Frequency Control..................................................................................77
3.3 Controls at Mode Changing / Start-up....................................................80
3.4 Discharge Pipe Temperature Control.....................................................81
3.5 Input Current Control..............................................................................81
3.6 Freeze-up Protection Control .................................................................82
3.7 Heating Peak-cut Control .......................................................................82
3.8 Fan Control.............................................................................................83
3.9 Liquid Compression Protection Function 2.............................................83
3.10 Defrost Control .......................................................................................84
3.11 Low Hz High Pressure Limit ...................................................................85
3.12 Electronic Expansion Valve Control .......................................................85
3.13 Malfunctions ...........................................................................................89
3.14 Forced Operation Mode .........................................................................90
3.15 Wiring-Error Check.................................................................................91
3.16 Additional Function.................................................................................93
Part 4
55