Specifications

SiEN04-306D
Function and Control 41
Part 4
Function and Control
1. Main Functions......................................................................................42
1.1 Frequency Principle................................................................................42
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........44
1.3 Fan Speed Control for Indoor Units........................................................45
1.4 Programme Dry Function .......................................................................46
1.5 Automatic Operation...............................................................................47
1.6 Thermostat Control.................................................................................48
1.7 Night Set Mode.......................................................................................49
1.8 INTELLIGENT EYE................................................................................50
1.9 HOME LEAVE Operation .......................................................................52
1.10 Inverter POWERFUL Operation.............................................................53
1.11 Other Functions......................................................................................54
2. Function of Main Structural Parts..........................................................55
2.1 Function of Thermistor ...........................................................................55
3. Control Specification .............................................................................57
3.1 Mode Hierarchy......................................................................................57
3.2 Frequency Control..................................................................................58
3.3 Controls at Mode Changing / Start-up....................................................60
3.4 Discharge Pipe Temperature Control.....................................................61
3.5 Input Current Control..............................................................................61
3.6 Freeze-up Protection Control .................................................................62
3.7 Heating Peak-cut Control .......................................................................62
3.8 Fan Control.............................................................................................63
3.9 Liquid Compression Protection Function 2.............................................63
3.10 Low Hz High Pressure Limit...................................................................64
3.11 Defrost Control .......................................................................................64
3.12 Electronic Expansion Valve Control .......................................................65
3.13 Malfunctions ...........................................................................................68
3.14 Forced Operation Mode .........................................................................69
3.15 Additional Function.................................................................................69
3.16 Facility Setting Switch (cooling at low outdoor temperature)..................70