84 
 
(For A18/24/28MK) 
 
(For 13.15 to 13.21 information applies only to Cooling and Soft Dry Operation) 
13.15 Restart Control (Time Delay Safety Control) 
•  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. 
 
13.16  7 Minutes Time Save Control 
•  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. 
 
13.17  60 Seconds Forced Operation 
•  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. 
 
13.18  Starting Current Control 
•  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. 
 
13.19  Freeze Prevention Control 
•  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.