Heating Mode Operation; Hot-Start Control - LG multi V PLUS Service Manual

Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as follows.
Intake Air Temperature.
Setting Temperature .+3°C
(Compressor OFF)
Setting Temperature
(Compressor ON)
INDOOR FAN
COMPRESSOR
A point; 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.
B point; When the indoor Heat-Exchanger temperature is higher than 42°C, fan operates at selected fan
speed, when it becomes lower than 39°C, the fan operates at low speed.

Hot-Start Control

• The indoor fan sdoes not rotate until the evaporator piping temperature reaches to 25°C.
• If the evaporator piping temperature drops below 22°C, indoor fan stops again.
• The operation diagram is as follows.
PIPING
TEMPERATURE
minimum 3min
1min minimum
10sec.
(Hot Start)
Selected
Low
Low
OFF
Fan Speed
ON
25°C
22°C
INDOOR FAN OFF
COMPRESSOR
A
B
minimum
1min.
OFF Low
OFF ON
1min
Selected
LOW
fan speed
ON
Operation Details
A
minimum
10sec.
Selecting fan
Low OFF
speed
OFF
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