LG FM15AH UL3, Svc Manual

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 2 Functions & Controls
* Some Models are different with temperature of indoor fan ON/OFF
■
Heating Mode Operation Details
The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.
COMP
Outdoor fan
Indoor fan
4way valve
Setting Temperature
(Thermo ON)
Setting Temperature
+3
°
C
(Thermo OFF)
Indoor unit
Heat-Exchanger
temperature
1min
Minimum
3min
1min
3min
Setting
fan
speed
Setting
fan
speed
Setting
fan
speed
ON
ON
ON
ON
Low Low Low Low
Low
Lo
Off Off Off
ON
OFF
OFF
Low fan during 10sec
A
A
B
B
Intake Air Temperature
• Compressor-off interval : - While the indoor Heat-Exchanger temperature is higher than 40
°
C, fan operates
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.
40
°
C
33
°
C
30
°
C
27
°
C
20
°
C
ON
ON
Off Off
Low Low
1min 1min
20
°
C
27
°
C
33
°
C
Indoor unit
Heat-Exchanger
temperature
Setting fan
speed
Setting fan
speed
Compressor
Outdoor fan
Indoor fan
4way Valve ON