LG Multi-Inverter Service Manual page 28

I Heating Mode Operation Details
The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.
Indoor unit
40°C
Heat-Exchanger
temperature
33°C
30°C
27°C
20°C
Intake Air Temperature
Setting Temperature
+3°C
(Thermo OFF)
Setting Temperature
(Thermo ON)
COMP
Outdoor fan
Indoor fan
4way valve
• Compressor-off interval : -
Indoor unit
Heat-Exchanger
temperature
33°C
27°C
20°C
Compressor
Outdoor fan
Indoor fan
4way Valve
* Some Models are different with temperature of indoor fan ON/OFF
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Only for training and service purposes
1min
ON
ON
Setting
Lo
fan
Off Low
Low
speed
While the indoor Heat-Exchanger temperature is higher than 40°C, fan operates
A
at low speed, when it becomes lower than 40°C fan stops.
- For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically.
B
1min
Setting fan
Low
Off
3min
Minimum
3min
OFF
OFF
Setting
fan
Low Low
speed
ON
ON
ON
Off
speed
ON
- 27 -
Part 2 Functions & Controls
A
Low fan during 10sec
B
1min
ON
ON
Setting
fan
Off Off Low
speed
1min
Setting fan
Low
speed
LGE Internal Use Only