Heating Mode Operation - LG AP-Z Series Svc Manual

5. Heating Mode Operation

The unit will operate according to the setting by the remote controller and the operation diagram is shown as
following.
Intake Air Temp.
Setting Temp. +1°C
(Compressor OFF)
Setting Temp.
(Compressor ON)
Setting Temp. -1°C
Indoor Fan Speed
Compressor
Electric Heater(Option)
• A point: The indoor pipe temperature to be less then 35°C & Discharge air Temperature to be less than 29°C.
The indoor fan operates for minimum 10sec. even if falls lower than 34°C.
※ During heating operation, the operating procedure of the indoor fan is as the following.
Discharge Air Temp.
Indoor Pipe Temp.
Step Indoor fan speed
Ⅰ
Ⅱ
Ⅲ
Selecting speed
Ⅳ
Selecting speed
Ⅴ
Ⅵ
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minimum
Hot
Start minimum
10sec.
Selecting
OFF
fan speed
ON
OFF ON
Stop(VI) Low(V)
39˚C
34˚C
28˚C
26˚C
Heating Start
Stop(I)
(Hot-Start Operating)
≤28。 C(Hot start operating)
Off
Low
Low
Off
A
minimum
10sec. 10sec.
LOW OFF
OFF
OFF
Selecting Fan Speed(IV)
(Hot-Start Release Point)
Low(II)
Pipe temp.
≥28。 C
≥28。 C
≥28。 C
≥26。 C
≤26。 C
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Operation Details
minimum
10sec.
Selecting
LOW
fan speed
ON
ON
Selecting Fan Speed(III)
Air discharge temp.
-
< 39°C
≥ 39°C
> 34°C
≤ 34°C
-
LGE Internal Use Only
A
OFF
OFF
OFF