Daikin FTKS20D2VMWL, Service Manual

Page: 54 / 228

SiENBE04-507A
Function and Control 45
Part 4
Function and Control
1. Main Functions......................................................................................46
1.1 Frequency Principle................................................................................46
1.2 Air Flow Direction Control.......................................................................48
1.3 Fan Speed Control for Indoor Units........................................................49
1.4 Programme Dry Function .......................................................................50
1.5 Automatic Operation...............................................................................51
1.6 Thermostat Control.................................................................................52
1.7 NIGHT SET Mode ..................................................................................53
1.8 ECONO Mode ........................................................................................54
1.9 INTELLIGENT EYE ................................................................................55
1.10 Inverter POWERFUL Operation .............................................................57
1.11 Other Functions......................................................................................58
2. Function of Thermistor ..........................................................................59
2.1 Heat Pump Model...................................................................................59
2.2 Cooling Only Model ................................................................................60
3. Control Specification .............................................................................61
3.1 Mode Hierarchy ......................................................................................61
3.2 Frequency Control..................................................................................62
3.3 Controls at Mode Changing / Start-up....................................................64
3.4 Discharge Pipe Control ..........................................................................65
3.5 Input Current Control..............................................................................66
3.6 Freeze-up Protection Control .................................................................67
3.7 Heating Peak-cut Control .......................................................................67
3.8 Fan Control.............................................................................................68
3.9 Liquid Compression Protection Function 2.............................................68
3.10 Defrost Control .......................................................................................69
3.11 Electronic Expansion Valve Control .......................................................70
3.12 Malfunctions ...........................................................................................73
3.13 Forced Operation Mode .........................................................................74
3.14 Additional Function.................................................................................74
3.15 Facility Setting Jumper (cooling at low outdoor temperature) ................75