LG Electronics LF300CP(LP-C303R20), LF480CE(LP-C483TA0) service manual Heating Mode Operation

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(1.8°F)

(Compressor OFF)

Setting Temp.						A					A
(Compressor ON)
Setting Temp. -1°C(1.8°F)			minimum				minimum			minimum
Hot
		minimum		10sec.			10sec.			10sec.
Start
		10sec.
Indoor Fan Speed OFF		Selecting		LOW		OFF		Selecting		LOW	OFF
		fan speed						fan speed
Compressor	ON				OFF				ON	OFF

•A point: The indoor pipe temperature to be less then 35°C(95.0°F) & Discharge air Temperature to be less than 29°C(84.2°F). The indoor fan operates for minimum 10sec. even if falls lower than 34°C(93.2°F).

During heating operation, the operating procedure of the indoor fan is as the following.

Stop(VI) Low(V) Selecting Fan Speed(IV)

39°C(102.2°F)

	Discharge Air Temp.
		34°C(93.2°F)
		28°C(82.4°F)				(Hot-Start Release Point)
	Indoor Pipe Temp.
		26°C(78.8°F)
					Heating Start
				Stop(I)		Low(II)	Selecting Fan Speed(III)
			(Hot-Start Operating)
Step	Indoor fan speed				Pipe temp.		Air discharge temp.
	Off				28 C(82.4°F)(Hot start operating)
	Low				28	C(82.4°F)	< 39°C(102.2°F)
	Selecting speed				28	C(82.4°F)	≥ 39°C(102.2°F)
	Selecting speed				28	C(82.4°F)	> 34°C(93.2°F)
	Low				26	C(78.8°F)	≤ 34°C(93.2°F)
	Off				26	C(78.8°F)

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