LG universal system air conditioner Service Manual page 136

Ceiling & Floor
Heating Mode Operation
The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.
Indoor unit
Heat-Exchanger
temperature
Intake Air Temperature
Setting Temperature
(Thermo OFF)
Setting Temperature
(Thermo ON)
COMP
Outdoor fan
Indoor fan
4way valve
• Compressor-off interval : -
136 Universal System Air Conditioner
35°C
32°C
29°C
21°C
17°C
+3°C
1min
Setting
Lo
Off Low
Low
spped
While the indoor Heat-Exchanger temperature is higher than 35°C, fan operates
A
at low speed, when it becomes lower than 35°C fan stops.
- For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically.
B
ON
ON
Setting
fan fan
Low
spped
ON
A
3min
Low fan during 10sec
B
Minimum
1min
3min
OFF ON
OFF ON
Setting
Low Off Off Low
fan
spped