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37 

•  When the piping air temperature reaches 38°C, the louver is changed from upper to lower limit. When the piping 

air temperature falls 35°C, the louver is changed from lower to upper limit. 

 
 
 
 
 
 
 
 
 
 
 
 
 

•  When the vertical airflow direction is set to Manual using the remote control, the automatic airflow is released and 

the airflow direction louver move up and down in the range shown in the diagram. 

•  The louver can be adjusted by pressing the button to the desired louver position. 

•  When stop operation using the remote control, the discharge vent is reset, and stop at the closing position. 
 
(Cooling and Soft Dry Operation Condition) 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 (Heating Operation Condition) 
 

 

 
 
 
 
 
 
 
 
 
 
 
 

•  When the ON Timer is set by using the remote control, the unit will start to operate slightly before the set time, so 

that the room will reach nearly to the set temperature by the set time. 

•  For Cooling and Soft Dry operation, the operation will start 15 minutes before the set time. 

•  For Heating operation, the operation will start 30 minutes before the set time. 

•  For Automatic operation, the indoor fan will operate at SLo speed for 20~25 seconds, 30 minutes before the set 

time to detect the intake air temperature to determine the operation mode. The operation indication lamp will blink 
at this time. 

 

Closing 
position  
/ 148° 

Lower limit for cooling mode 
and soft dry mode 

Horizontal 

17° 

22° 

33° 

28° 

39° 

Upper limit for 
cooling mode and 
soft dry mode 

35° 

Closing 
position  
/ 148° 

Lower limit for heating mode/52° 

Horizontal 

Upper limit/17° 

Closing 
position  
/ 148° 

Lower limit for heating mode 

Horizontal 

17° 

27° 

42° 

33° 

52° 

Upper limit for 
heating mode 

38 

•  When the OFF Timer is set using the remote control, the unit will stop operate according to the desired setting. 

Notes: 
1  By pressing ON/OFF operation button, the ON Timer or OFF Timer will not be cancel. 
2  To cancel the previous timer setting, press CANCEL button. 
3  To activate the previous timer setting, press SET button. 
4  If main power supply is switched off, the Timer setting will be cancel. 
 
 

•  If there is a power failure during operation, the air conditioner will automatically restart after 3 to 4 minutes when 

the power is resumed. 

•  It will start with previous operation mode and airflow direction. 

•  If there are more than one air conditioner unit in operation and power failure occur, restart time for each unit to 

operate will be decided randomly using 4 parameters:- intake air temperature, setting temperature, fan speed 
and air swing louver position. 

•  This Random Auto Restart Control is not available when Timer is set. 

•  This control can be omitted by open the circuit of JX02 at indoor unit printed circuit board. 

 

•  Short beep sound will be heard when turn ON the air conditioner or enabling other operations. 

•  Long beep sound will be heard when turn OFF the air conditioner or disabling other operations. 
 

39 

 

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

o

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

o

  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 and compressor OFF temperature 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. 
 

•  If the temperature of the indoor heat exchanger falls below 2°C continuously for 4 minutes or more, the 

compressor turns off. 
The fan speed setting remains the same. 

•  This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of 

refrigerant in liquid form returning to the compressor. 

•  Compressor will restart again when the indoor heat exchanger temperature rises to 10°C (Recovery). 

•  Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short. 
 

 

 
 
 
 
 
 
 

40 

•  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. 
 

 

 

s T = Intake air temperature - Indoor heat exchanger temperature 

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

•  To prevent dew formation at indoor unit discharge area. 

•  This control starts if: 

o

  Cooling mode or Quiet mode is activated. 

o

  Remote Control setting temperature is less than 25°C. 

o

  Fan speed is at Lo or QLo. 

o

  Room temperature is constant (±1°C) for 30 minutes. 

o

  Compressor is continuously running. 

•  Fan speed, angle of horizontal louver (vertical airflow angle) and angle of vertical louver (horizontal airflow angle) 

will be adjusted accordingly in this control.  
o

  Fan speed will be increased slowly if the unit is in quiet mode and Lo fan speed. 

o

  The angle of horizontal louver will be changed as table below: 

o

  The angle of vertical louver will be changed as table below: 

•  Dew prevention stop condition 

o

  Remote control setting temperature is more than 25°C. 

o

  Fan speed is not set to Lo or QLo. 

o

  Select Powerful operation. 

 

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

o

  Heating operation - the compressor stops for 3 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. 

 

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

indoor heat exchanger and intake air is 5°C or less for continuous 2 minutes, compressor will stop and restart 
automatically. 

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

 

 

 
s T = Indoor heat exchanger temperature - Intake air temperature 

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