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• Automatic operation can be set using remote control.
• This operation starts to operate with indoor fan at SLo speed for 20 seconds to judge the intake air temperature.
• After judged the temperature, the operation mode is determined by referring to the below standard.

• Then, the unit start to operate at determined operation mode, until it is switched off using remote control, with the setting

temperature as shown in below table.

• The setting temperature for all the operations can be changed one level up or one level down from the standard temperature as

shown in below table by pressing on the temperature up or temperature down button at remote control.

• The operation mode judging temperature and standard setting temperature can be increased by 2

°C permanently, by open the

circuit of JX1 at indoor electronic controller.

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• When the thermo-off temperature (temperature which compressor stops to operate) is reached during:-

- Cooling operation - the compressor stops for 3 minutes (minimum) before resume operation.
- Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation.

• If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation

stop, although the unit is turn on again within the period.

• This phenomenon is to balance the pressure inside the refrigerant cycle.

• The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls between the

compressor ON temperature (A) and compressor OFF temperature (B) during the period.

• This phenomenon is to reduce the built up humidity inside a room.

• Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation although the intake air

temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON operation button at the
remote control is permitted.

• The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and return

back to the outdoor unit.

• When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will start to

operate at 1.6 second later.

• The reason of the difference is to reduce the starting current flow.

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• To protect indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form return to compressor.
• This control will activate when the temperature of indoor heat exchanger falls below 2

°C continuously for more than 4 minutes.

• The current fan speed will change to freeze prevention speed after 70 seconds compressor on. When indoor pipe temperature

reaches certain temperature for 5 sec. the speed will be increased as in below figure.

• Compressor will turn off when indoor temperature falls below 2

°C for more than 4 minutes. It will restart again when indoor heat

exchanger temperature rises to 10

°C.

• Restart control (Time Delay Safety Control) will be applied in this control.

• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor

heat exchanger is 2.5

°C or less for continuous 2 minutes, compressor will stop and restart automatically.

• Time Delay Safety Control is activated before the compressor restart.

• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.

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• To prevent dew formation at indoor unit discharge area.
• This control will be activated if:-

- Cooling mode or Quiet mode.
- Remote Control setting temperature is less than 25

°C.

- Fan speed is at CLo or QLo.
- Room temperature is constant (±1

°C) for 30 minutes.

- Compressor is continuously running.

• Fan speed and angle of horizontal louver (vertical airflow angle) will be adjusted accordingly in this control.

- Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode.
- The angle of horizontal louver will be changed as below figure.

A = Normal operation angle of rotation
B = Dew prevention angle of rotation

Horizontal Louver Angle
During Anti-Dew condensation prevention, the horizontal louver angle in Auto-control are as below figure.

During Anti-Dew condensation prevention, the horizontal louver angle in Manual control are as below figure.

Operation mode

Airflow direction auto-control

Airflow direction manual control

Cooling, Soft Dry

A

12

° ~ 32°

12

°, 15°, 20°, 26°, 32°

B

20

° ~ 30°

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°, 24°, 26°, 28°, 30°