Part 4 Function And Control - Daikin 3MKS50E3V1B Service Manual

SiBE121135
1. Indoor Unit Control (RA Models) ...........................................................76
2. Indoor Unit Control (SA Models) ...........................................................99
3. Function of Thermistor ........................................................................105
4. Control Specification ...........................................................................107
Function and Control
Function and Control
1.1 Temperature Control ..............................................................................76
1.2 Frequency Principle................................................................................76
1.3 Operation Starting Control......................................................................78
1.4 Airflow Direction Control.........................................................................79
1.5 Fan Speed Control for Indoor Unit .........................................................82
1.6 RADIANT Operation...............................................................................83
1.7 Program Dry Operation ..........................................................................85
1.8 Automatic Operation...............................................................................86
1.9 Thermostat Control.................................................................................87
1.10 NIGHT SET Mode ..................................................................................89
1.11 ECONO Operation .................................................................................90
1.12 HOME LEAVE Operation .......................................................................91
1.13 INTELLIGENT EYE Operation ...............................................................92
1.14 2-Area INTELLIGENT EYE Operation ...................................................93
1.15 Inverter POWERFUL Operation .............................................................95
1.16 Multi-Colored Indicator Lamp / TIMER Lamp .........................................95
1.17 Other Functions......................................................................................97
2.1 Drain Pump Control................................................................................99
2.2 Thermostat Sensor in Remote Controller.............................................101
2.3 Freeze Prevention Control ...................................................................103
2.4 Hot Start Control (In Heating Operation Only)......................................104
4.1 Mode Hierarchy ....................................................................................107
4.2 Frequency Control................................................................................108
4.3 Controls at Mode Changing / Start-up..................................................111
4.4 Discharge Pipe Temperature Control...................................................112
4.5 Input Current Control............................................................................113
4.6 Freeze-up Protection Control ...............................................................113
4.7 Heating Peak-cut Control .....................................................................114
4.8 Outdoor Fan Control.............................................................................115
4.9 Liquid Compression Protection Function..............................................115
4.10 Defrost Control .....................................................................................116
4.11 Low Hz High Pressure Limit .................................................................117
4.12 Outdoor Electronic Expansion Valve Control .......................................117
4.13 Malfunctions .........................................................................................122
Part 4
75