Operation Details; Room/Art Cool Type Indoor Unit; The Function Of Main Control; Cooling Mode Operation - LG A2UN186FA0 Service Manual

Operation Details

1. Room/Art Cool Type Indoor Unit

(1) The Function of main control

• DISPLAY
Operation Indicator
• On while in appliance operation, off while in appliance pause
• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)
Sleep Timer Indicator
• On while in sleep timer mode, off when sleep timer cancel or appliance operation pause
Timer Indicator
• On while in timer mode (on/off), off when timer mode is completed or canceled
Defrost Indicator
• Off except when hot start during heating mode operation or while in defrost control

Cooling Mode Operation

• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan
stop.
• When it reaches 0.5°C above the setting temp, they start to operate again.
Compressor ON Temp
Compressor OFF Temp
• While in compressor running, operating with the airflow speed set by the remote control. While in compressor
not running, operating with the low airflow speed regardless of the setting.
Soft Dry Operation Mode
• When the dehumidification operation input by the remote control is received, the intake air temperature is
detected and the setting temp is automatically set according to the intake air temperature.
26°C ≤ Intake Air Temp
24°C ≤ Intake Intake Air Temp<26°C
18°C ≤ Intake Intake Air Temp<24°C
Intake Air Temp<18°C
• While in compressor off, the indoor fan repeats low airflow speed and pause.
• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification
operation and 4-min compressor off repeat.
Compressor ON Temp.
Compressor OFF Temp.
• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.
Heating Mode Operation
• When the intake air temp reaches +3°...above the setting temp, the compressor is turned off. When below
the setting temp, the compressor is turned on.
Compressor ON Temp.
Compressor OFF Temp.
• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 26°C, when above 28°C , it
operates with the low or setting airflow speed.
Setting Temp+0.5°C
Setting Temp-0.5°C
25°C
Intake Air Temp-1°C
Intake Air Temp-0.5°C
18°C
Setting Temp+0.5°C
Setting Temp-0.5°C
Setting Temp.
Setting Temp.+3°C
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