Daikin FTXS30LVJU, Service Manual

Page: 37 / 414

SiUS091133
27 Function and Control
Part 4
Function and Control
1. Main Functions..........................................................................................28
1.1 Temperature Control .................................................................................. 28
1.2 Frequency Principle.................................................................................... 28
1.3 Airflow Direction Control (FTXS Series) ..................................................... 30
1.4 Fan Speed Control for Indoor Unit ............................................................. 32
1.5 Program Dry Operation .............................................................................. 33
1.6 Automatic Operation................................................................................... 34
1.7 Thermostat Control..................................................................................... 35
1.8 NIGHT SET Mode ...................................................................................... 36
1.9 ECONO Operation ..................................................................................... 37
1.10 INTELLIGENT EYE Operation (FTXS Series) ........................................... 38
1.11 Inverter POWERFUL Operation ................................................................. 39
1.12 Other Functions.......................................................................................... 40
2. Function of Thermistor ..............................................................................41
3. Control Specification .................................................................................42
3.1 Mode Hierarchy .......................................................................................... 42
3.2 Frequency Control...................................................................................... 43
3.3 Controls at Mode Changing / Start-up........................................................ 45
3.4 Discharge Pipe Temperature Control......................................................... 46
3.5 Input Current Control.................................................................................. 47
3.6 Freeze-up Protection Control ..................................................................... 48
3.7 Heating Peak-cut Control ........................................................................... 48
3.8 Outdoor Fan Control................................................................................... 49
3.9 Liquid Compression Protection Function.................................................... 49
3.10 Defrost Control ........................................................................................... 50
3.11 Electronic Expansion Valve Control ........................................................... 51
3.12 Malfunctions ............................................................................................... 54