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    Indoor Unit 
Parts And Major 
      Functions
Features
Default Setting
When the air conditioner restarts after a power 
failure, it will default to the factory settings 
(AUTO mode, AUTO fan, 24°C (76°F)). This 
may cause inconsistencies on the remote 
control and unit panel. Use your remote 
control to update the status.   
Auto-Restart (some models)
In case of power failure, the system will 
immediately stop. When power returns, the 
Operation light on the indoor unit will flash. To 
restart the unit, press the ON/OFF button on 
the remote control. If the system has an auto 
restart function, the unit will restart using the 
same settings.     
Energy Saving Tips
•  DO NOT 
set the unit to excessive temperature levels. 
•  While cooling, close the curtains to avoid direct sunlight. 
•  Doors and windows should be kept closed to keep cool or warm air in the room. 
•  DO NOT 
place objects near the air inlet and outlet of the unit. This will reduce the efficiency of 
the unit.
 
•  Set a timer and use the built-in SLEEP/ECONOMY mode if applicable.
•  If you don’t plan to use the unit for a long time, remove the batteries from the remote control. 
•  Clean the air filter every two weeks. A dirty filter can reduce cooling or heating efficiency. 
•  Adjust louvers properly and avoid direct airflow.
Louver Angle Memory Function (Optional)
Some models are designed with a louver angle 
memory function. When the unit restarts after a 
power failure, the angle of the horizontal louvers 
will automatically return to the previous position. 
The angle of the horizontal louver should not be 
set too small as condensation may form and drip 
into the machine. To reset the louver, press the 
manual button, which will reset the horizontal 
louver settings.      
Refrigerant Leak Detection System 
(some models)
In the event of a refrigerant leak, the LCD screen 
will display “EC” and the LED indicator light will 
flash. 
Closing curtains during heating also
              helps keep the heat in  
Doors and windows should be kept 
                        closed