Daikin FTKD50BVM, Service Manual

Page: 42 / 210

Si04-306
Function and Control 33
Part 4 Part 4 Part 4 Part 4
Function and Control Function and Control Function and Control Function and Control
1. Main Functions......................................................................................34
1.1 Frequency Principle................................................................................34
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........36
1.3 Fan Speed Control for Indoor Units........................................................37
1.4 Programme Dry Function .......................................................................38
1.5 Automatic Operation...............................................................................39
1.6 Night Set Mode.......................................................................................40
1.7 Intelligent Eye.........................................................................................41
1.8 Home Leave Operation ..........................................................................43
1.9 Inverter Powerful Operation ...................................................................44
1.10 Other Functions......................................................................................45
2. Function of Main Structural Parts..........................................................46
2.1 Function of Thermistor ...........................................................................46
3. Control Specification .............................................................................48
3.1 Mode Hierarchy ......................................................................................48
3.2 Frequency Control..................................................................................49
3.3 Controls at Mode Changing / Start-up....................................................51
3.4 Discharge Pipe Temperature Control.....................................................52
3.5 Input Current Control..............................................................................52
3.6 Freeze-up Protection Control .................................................................53
3.7 Heating Peak-cut Control .......................................................................53
3.8 Fan Control.............................................................................................54
3.9 Moisture Protection Function 2...............................................................54
3.10 Low Hz High Pressure Limit ...................................................................55
3.11 Defrost Control .......................................................................................55
3.12 Electronic Expansion Valve Control .......................................................56
3.13 Malfunctions ...........................................................................................59
3.14 Forced Operation Mode .........................................................................60
3.15 Additional Function.................................................................................60