SiBE05-513AFunction and Control 17Part 4Function and Control1. Main Functions......................................................................................181.1 Frequency Principle................................................................................181.2 Auto-Swing .............................................................................................201.3 Fan Speed Control for Indoor Units........................................................211.4 Programme Dry Function .......................................................................221.5 Automatic Operation...............................................................................231.6 Thermostat Control.................................................................................241.7 NIGHT SET Mode ..................................................................................251.8 HOME LEAVE Operation .......................................................................261.9 Inverter POWERFUL Operation .............................................................271.10 Other Functions......................................................................................282. Function of Thermistor ..........................................................................292.1 Heat Pump Model...................................................................................292.2 Cooling Only Model ................................................................................303. Control Specification .............................................................................313.1 Mode Hierarchy ......................................................................................313.2 Frequency Control..................................................................................323.3 Controls at Mode Changing / Start-up....................................................343.4 Discharge Pipe Control ..........................................................................353.5 Input Current Control..............................................................................363.6 Freeze-up Protection Control .................................................................373.7 Heating Peak-cut Control .......................................................................373.8 Fan Control.............................................................................................383.9 Liquid Compression Protection Function 2.............................................383.10 Defrost Control .......................................................................................393.11 Electronic Expansion Valve Control .......................................................403.12 Malfunctions ...........................................................................................433.13 Forced Operation Mode .........................................................................443.14 Additional Function.................................................................................443.15 Facility Setting Jumper (cooling at low outdoor temperature) ................45