SiBE041010
Function and Control 13
Part 4
Function and Control
1. Main Functions......................................................................................14
1.1 Frequency Principle................................................................................14
1.2 Airflow Direction Control.........................................................................16
1.3 Fan Speed Control for Indoor Units........................................................17
1.4 Program Dry Operation ..........................................................................18
1.5 Automatic Operation...............................................................................19
1.6 Thermostat Control.................................................................................20
1.7 NIGHT SET Mode ..................................................................................21
1.8 ECONO Operation .................................................................................22
1.9 Inverter POWERFUL Operation .............................................................23
1.10 Other Functions......................................................................................24
2. Function of Thermistor ..........................................................................25
3. Control Specification .............................................................................26
3.1 Mode Hierarchy ......................................................................................26
3.2 Frequency Control..................................................................................27
3.3 Controls at Mode Changing / Start-up....................................................29
3.4 Discharge Pipe Temperature Control.....................................................30
3.5 Input Current Control..............................................................................31
3.6 Freeze-up Protection Control .................................................................32
3.7 Heating Peak-cut Control .......................................................................32
3.8 Outdoor Fan Control...............................................................................33
3.9 Liquid Compression Protection Function................................................33
3.10 Defrost Control .......................................................................................34
3.11 Electronic Expansion Valve Control .......................................................35
3.12 Malfunctions ...........................................................................................38
3.13 Forced Operation Mode .........................................................................39
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