LG ARNU Series User Manual

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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1.4 Fan control
The fan motors of the main unit are operated by the inverter drive with fuzzy control rules. Those of the sub
units are all step motors. The operating status of the fan motors is shown below for each step.
2 - Fan Mode
Fan Step
Left fan Right fan
0 Stop Stop
1 Low Stop
2 High Stop
3 Low Low
4 High Low
5 High High
Fan frequency
<5 Hz
5Hz ≤ f < 10Hz
10 Hz ≤ f < 20Hz
20 Hz ≤ f < 30Hz
30 Hz ≤ f < 40Hz
f ≥ 40Hz
Sub unit Main unit
1 - Fan Mode (Half size)
5Hz ≤ f
20 Hz ≤ f
< 20Hz
< 5Hz
Fan Step Fan Fan frequency
0 Stop
1 Low
2 High
Function
The main unit has two inverter motors and both operate together .
• The sub unit has two tap motors and run in steps of stop , low and high .
• The tap motor functioning is decided as per the frequency of the inverter motors of the main unit.

LG ARNU Series Specifications

General

Brand	LG
Model	ARNU Series
Category	Air Conditioner
Language	English