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13. Operation Control 
13.1 Basic Function 
Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time 
passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating 
mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and 
performing temperature shifting. The compressor at outdoor unit is operating following the frequency instructed by 
the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air 
temperature. 
13.1.1  Internal Setting Temperature 
Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting 
processes. These shifting processes are depending on the air conditioner settings and the operation environment. 
The final shifted value will be used as internal setting temperature and it is updated continuously whenever the 
electrical power is supplied to the unit. 
 
 
13.1.2 Cooling Operation 
13.1.2.1 Thermostat control 
  Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5°C continue for 3 minutes. 
  Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > 
Compressor OFF point. 
 
13.1.3  Soft Dry Operation 
13.1.3.1 Thermostat control 
  Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -2.0°C continue for 3 minutes. 
  Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > 
Compressor OFF point. 
 
13.1.4 Heating Operation 
13.1.4.1 Thermostat control 
  Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0°C continue for 3 minutes. 
  Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < 
Compressor OFF point.