LG Multi V CRUN Series User Manual

212 Trouble Shooting Guide
Checking Method for Key Components
2. Checking Method for Key Fompornents
2.1 Compressor
Caution Turn-off the main power of the indoor/outdoor unit before check
Check the compressor
Cheking Method 1
Ω
Comp.
pipe
Figure 1.
V
U
W
Ω
Figure 2.
1. Check an electric leakang with DC 500V megger
Uncover the compressor terminal cover, and then unplug compressor power
cable from the terminal.
Set the checking range to resistance(Ω)
Check the insulation resistance between pipe and each terminal(U,V,W) as
described in figure 1.
If the insulation resistance is not less than than the value listed in the table 1,
then the compressor is normal
2. Check a short-circuit in the compressor with tester
Uncover the compressor terminal cover, and then unplug compressor power
cable from the terminal.
Set the checking range to resistance(Ω)
Check the resistance between each terminal(U,V,W) as described in figure 2.
If the measured value of the resistance is out of the tolerance range listed in
the table 2, then the compressor is not normal.
The refrigerant is charged Therefrigerant is not charged
130
Resistance (MΩ)
Table 1.
Environment air temperature is 20˚C
JT100BEVYE (Inverter) DT212DATYE (Normal)
1.4 ± 7% 1.8 ± 7%
Resistance (MΩ)
Table 1.
Environment air temperature is 20˚C

LG Multi V CRUN Series Specifications

General

Brand	LG
Model	Multi V CRUN Series
Category	Air Conditioner
Language	English