Finishing The Outdoor Unit Installation; To Check The Insulation Resistance Of The Compressor - Daikin Altherma 3R Manual Del Usuario

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OR
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3 Fix the cables (power supply and interconnection cable) with a
cable tie to the stop valve attachment plate and route the wiring
according to the illustration above.
4 Choose a knockout hole and remove the knockout hole by
tapping on the attachment points with a flat head screwdriver
and a hammer.
5 Route the wiring through the frame and connect the wiring to
the frame at the knockout hole.
Routing through Choose one of the 3 possibilities:
the frame
1
a
a Power supply cable
Note: Route the interconnection cable
together with the refrigerant piping. See
"7.2 To finish the outdoor unit
installation" [ 4 16].
ERLA11~16DAV3+W1
Daikin Altherma 3 R
4P643598-1 – 2021.09
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2
a

7 Finishing the outdoor unit installation

Connecting to the
frame
NOTICE
Precautions when making knockout holes:
▪ Avoid damaging the casing and underlying piping.
▪ After making the knockout holes, we recommend to
remove the burrs and paint the edges and areas
around the edges using repair paint to prevent rusting.
▪ When passing electrical wiring through the knockout
holes, wrap the wiring with protective tape to prevent
damage.
6 Reattach the service cover.
7 Connect an earth leakage circuit breaker and fuse to the power
supply line.
a
7 Finishing the outdoor unit
installation
7.1 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
≥1 MΩ
<1 MΩ
2 Turn ON the power and leave it on for 6 hours.
When cables are routed from the unit, a
protection sleeve for the conduits (PG
insertions) can be inserted at the knockout
hole.
When you do not use a wire conduit,
protect the wires with vinyl tubes to
prevent the edge of the knockout hole from
cutting the wires.
A B
a c d b e
A Inside of the outdoor unit
B Outside of the outdoor unit
a Wire
b Bush
c Nut
d Frame
e Hose
Then
Insulation resistance is OK. This procedure
is finished.
Insulation resistance is not OK. Go to the
next step.
Installation manual
15