LG ARNU Series, Service Manual

Page: 25 / 226

Service Manual 25
Intake Air temperature
Setting Temperature .+3°C
(Compressor OFF)
Setting Temperature
(Compressor ON)
INDOOR FAN Low OFF Low Low OFF
■
Heating Mode Operation
The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.
Hot Start Low
Selected
Speed
minimum 3min
Selected
speed
minimum
10sec.
1min
A A
minimum
1min.
minimum
10sec.
B
■
Hot-start Control
The indoor fan does no rotate until the evaporator piping temperature will be reached to 25°C.
The operation diagram is as following.
25
°
C
27
°
C
35
°
C
30
°
C
22
°
C
Pipe
temperature
OFF
Indoor fan
speed
LO
LOW
LOW
SELECTED
FAN
LOW LOLOW
COMP ON
• A point; While the indoor Heat-Exchanger temperature is higher than 35°C fan operates at low speed,
when it becomes lower than 35˚C fan stops.
• B point; When the indoor Heat-Exchanger temperature is higher than 30°C, fan operates at selected fan
speed, when it becomes lower than 30°C, the fan operates at low speed for 10sec, after 10sec, it
operates at selected fan speed.
Operation Detail