Daikin Sky Air Advance Series - Wiring Routing and Cable Fixing; Finishing Outdoor Unit Installation; Checking Insulation Resistance

6 Installation
Installer reference guide
25
RZA200+250D7Y1B
Sky Air Advance-series
4P573383-1 – 2019.04
d Cable tie
4 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.
5 Choose a knockout hole and remove the knockout hole by
tapping on the attachment points with a flat head screwdriver
and a hammer.
6 Route the wiring through the frame and connect the wiring to
the frame at the knockout hole.
Routing through
the frame
Choose one of the 3 possibilities:
a
a
a
2
3
1
a Power supply cable
Note: Route the interconnection cable
together with the refrigerant piping. See
"6.9.1To finish the outdoor unit
installation"[425].
Connecting to the
frame
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 c d e
A B
A Inside of the outdoor unit
B Outside of the outdoor unit
a Wire
b Bush
c Nut
d Frame
e Hose
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.
b
c
a
a Knockout hole
b Burr
c Sealant etc.
7 Reattach the service cover. See "6.9.2 To close the outdoor
unit"[425].
8 Connect an earth leakage circuit breaker and fuse to the power
supply line.
6.9 Finishing the outdoor unit
installation
6.9.1 To finish the outdoor unit installation
NOTICE
It is recommended that the refrigerant piping between
indoor and outdoor unit is installed in a ducting or the
refrigerant piping is wrapped with finishing tape.
1 Insulate and fix the refrigerant piping and interconnection cable
as follows:
f
b
a
e
d
c
a Gas pipe
b Gas pipe insulation
c Interconnection cable
d Liquid pipe
e Liquid pipe insulation
f Finishing tape
2 Install the service cover.
6.9.2 To close the outdoor unit
2
1
4
3
1×
6.9.3 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.