Heating Mode Operation - LG ATNH126ELFC Service Manual

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
35°C
Heat-Exchanger
temperature
32°C
29°C
21°C
17°C
Intake Air Temperature
Setting Temperature
+3°C
(Thermo OFF)
Setting Temperature
(Thermo ON)
COMP
Outdoor fan
Indoor fan
4way valve
Hot-start Control
The indoor fan does no rotate until the evaporator piping temperature will be reached to 21°C.
The operation diagram is as following.
temperature
1min
ON
ON
Setting
Lo
fan
Off Low
Low
spped
Pipe
32 °C
29 °C
23 °C
21 °C
17 °C
LO
LOW
Indoor fan
OFF LOW
speed
COMP
A
3min
Minimum
3min
OFF
OFF
Setting
fan
Low Low Off
spped
ON
SELECTED
LOW LOLOW
FAN
ON
Function
Low fan during 10sec
B
1min
ON
ON
Setting
fan
Off Low
spped
Service Manual 131