Fuzzy Operation For Cooling; Fuzzy Operation For Dehumidification - LG Multi V ARNU Series Service Manual

Operation Details

1) Fuzzy Operation for Cooling

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(33°F) or more
below the setting temp, the compressor is turned off. When 0.5°C(33°F) or more above the setting temp, the
compressor is turned on.
Compressor ON Temp. => Setting Temp+0.5°C(33°F)
Compressor OFF Temp. => Setting Temp+0.5°C(33°F)
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the
intake air temp at that time.
26°C(78°F) ≤ Intake Air Temp
24°C(76°F) ≤ Intake Air Temp < 26°C(78°F) => Intake Air Temp+1°C(34°F)
22°C(72°F) ≤ Intake Air Temp<24°C(76°F) => Intake Air Temp+0.5°C(33°F)
18°C(64°F) ≤ Intake Air Temp<22°C(72°F) => Intake Air Temp
Intake Air Temp<18°C(64°F)
• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the
Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature
automatically according to the Fuzzy rule.
• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.

2) Fuzzy Operation for Dehumidification

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(33°F) or more
below the setting temp, the compressor is turned off. When 0.5°C(33°F) or more above the setting temp, the
compressor is turned on.
Compressor ON Temp. => Setting Temp+0.5°C(33°F)
Compressor OFF Temp. => Setting Temp+0.5°C(33°F)
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the
intake air temp at that time.
26°C(78°F) ≤ Intake Air Temp
24°C(76°F) ≤ Intake Air Temp < 26°C(78°F)=> Intake Air Temp+1°C(34°F)
22°C(72°F) ≤ Intake Air Temp<24°C(76°F) => Intake Air Temp+0.5°C(33°F)
18°C(64°F) ≤ Intake Air Temp<22°C(72°F) => Intake Air Temp
Intake Air Temp < 18°C(64°F)
• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the
Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature
automatically according to the Fuzzy rule.
• While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in
dehumidification operation.
Copyright ©2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
=> 25°C(76°F)
=> 18°C(64°F)
=> 25°C(76°F)
=> 18°C(64°F)
- 38 -
LGE Internal Use Only