SiENBE04-925_AFunction and Control 19Part 4Function and Control1. Main Functions......................................................................................201.1 Frequency Principle................................................................................201.2 Airflow Direction Control.........................................................................221.3 Fan Speed Control for Indoor Units........................................................231.4 Program Dry Operation ..........................................................................241.5 Automatic Operation...............................................................................251.6 Thermostat Control.................................................................................261.7 NIGHT SET Mode ..................................................................................271.8 ECONO Operation .................................................................................281.9 2-Area INTELLIGENT EYE Operation ...................................................291.10 Inverter POWERFUL Operation .............................................................311.11 Other Functions......................................................................................322. Function of Thermistor ..........................................................................333. Control Specification .............................................................................343.1 Mode Hierarchy ......................................................................................343.2 Frequency Control..................................................................................353.3 Controls at Mode Changing / Start-up....................................................373.4 Discharge Pipe Temperature Control.....................................................393.5 Input Current Control..............................................................................403.6 Freeze-up Protection Control .................................................................413.7 Heating Peak-cut Control .......................................................................413.8 Outdoor Fan Control...............................................................................423.9 Liquid Compression Protection Function................................................423.10 Defrost Control .......................................................................................433.11 Electronic Expansion Valve Control .......................................................443.12 Malfunctions ...........................................................................................473.13 Forced Operation Mode .........................................................................483.14 Standby Electricity Saving......................................................................48
