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Electrical installation
Installer and user reference guide
98
RXYSQ4~6T8V/YB
VRV IV-S system air conditioner
4P482277-1B – 2020.10
19.4 To check the insulation resistance of the compressor
NOTICE
If, after installation, refrigerant accumulates in the compressor, the insulation
resistance over the poles can drop, but if it is at least 1 MΩ, then the unit will not
break down.
▪
Use a 500 V mega-tester when measuring insulation.
▪
Do NOT use a mega-tester for low voltage circuits.
1
Measure the insulation resistance over the poles.
If
Then
≥1 MΩ
Insulation resistance is OK. This procedure is
finished.
<1 MΩ
Insulation resistance is not OK. Go to the next step.
2
Turn ON the power and leave it on for 6 hours.
Result:
The compressor will heat up and evaporate any refrigerant in the
compressor.
3
Measure the insulation resistance again.
Содержание VRV IV-S RXYSQ4T8VB Series
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