LG Universal System Air Conditioner - Fan Control

Service Manual 141
Outdoor Units
1.4 Fan control
Control logic of outdoor fan depends on Outdoor temperature.
(1) Single fan model (2) Two fan model
Step_Fan Fan A
2 High
1 Low
0X
Step_Fan Fan (A) Fan (B)
4 High High
3 Low Low
2 High X
1 Low X
0XX
Step_Fan
Step_Fan + 1
Step_Fan + 2
Step_Fan - 1
Step_Fan - 2
41°C
38°C
28°C
22°C
Step_Fan ( 2 )
Step_Fan + 1
Step_Fan - 1
Cooling Single FAN Cooling two FAN
Outdoor
temperature
Step_Fan - 3
10°C
Step_Fan
Step_Fan - 1
Step_Fan - 2
Step_Fan + 1
Step_Fan + 2
Step_Fan ( 4 )
Step_Fan - 1
Step_Fan + 1
20°C
14°C
4°C
-3°C
Heating Single FAN Heating two FAN
Outdoor
temperature