LG ARTCOOL Series - Protection Functions & Controls

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 2 Functions & Controls
5.1 Five Seconds Stand-by (fan)
• Prevention fan in indoor unit rotate after 5 seconds when unit is turned on.
5.2 Two Minutes Stand-by (comp.)
• Compressor starts two minutes later, after it is turned off
5.3 Hot start
• When unit starts in the heating mode to prevent cold wind blowing, the indoor fan does not rotate until the temp. of
heat exchanger reaches 30°C(model by model)
5.4 Freeze prevention (Protection of the evaporator pipe from frosting)
• If the indoor pipe temperaure is below 0°C in 7 min. after the compressor operates without pause while in cooling cycle
operation mode, ➔ compressor, outdoor fan are turned off.
• When indoor pipe temp. is 7°C or higher after 2 min pause of compressor ➔ compressor, outdoor fan is turned on
NOTE: Some Models are different by T1.
5. Protection Functions & Controls
Comp. free
Comp. Step 4
Comp. Step 2
Comp. off
T1
3˚C
6˚C
7˚C
Indoor pipe
temp.
T1: 0 ~ 2°C