Daikin Sky Air Alpha Series, Installer'S Reference Manual

Page: 64 / 88

7 | Installation
Installer reference guide
64
RZAG71~Y1
Sky Air Alpha-series
4P695307-1 – 2022.05
g
b
a
f
e
c d
a Gas pipe
b Gas pipe insulation
c Interconnection cable
d Field wiring (if applicable)
e Liquid pipe
f Liquid pipe insulation
g Finishing tape
2 Install the service cover.
7.8.2 To close the outdoor unit
2
1
4
3
1×
PH2
8 mm
7.8.3 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.