8 Finishing the outdoor unit installation
Installation manual
12
(A)RXP20~35N5V1B
R32 split series
3P650253-10H – 2022.10
WARNING
▪ Do NOT use locally purchased electrical parts inside
the product.
▪ Do NOT branch the power supply for the drain pump,
etc. from the terminal block. This could result in
electrical shock or fire.
WARNING
Keep the interconnection wiring away from copper pipes
without thermal insulation as such pipes will be very hot.
7.1
Specifications of standard wiring
components
NOTICE
We recommend using solid (single-core) wires. If stranded
wires are used, twist the conductor to consolidate the end
or twist the conductor to consolidate the end in
combination with the usage of a round crimp-style terminal
on the end of the conductor. Details are described in
"Guidelines when connecting the electrical wiring" in the
installer reference guide.
Component
Power supply cable Voltage
220~240 V
Phase
1~
Frequency
50 Hz
Wire sizes
MUST comply with
applicable legislation
Interconnection cable
(indoor↔outdoor)
4-core cable ≥1.5 mm² and
applicable for 220~240 V
Recommended field fuse
16 A
Earth leakage circuit breaker
MUST comply with
applicable legislation
7.2
To connect the electrical wiring to
the outdoor unit
1
Remove the service cover.
2
Open the wire clamp.
3
Connect the interconnection cable and power supply as follows:
f
50 Hz
220-240 V
a
b
c
d
e
a
Interconnection cable
b
Power supply cable
c
Circuit breaker
d
Residual current device
e
Power supply
f
Earth
3×
4
Tighten the terminal screws securely. We recommend using a
Phillips screwdriver.
8
Finishing the outdoor unit
installation
8.1
To finish the outdoor unit
installation
1
Insulate and fix the refrigerant piping and cables as follows:
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.
8.2
To close the outdoor unit
NOTICE
When closing the outdoor unit cover, make sure that the
tightening torque does NOT exceed 1.3 N•m.
1×
2
1
1
9
Commissioning
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
9.1
Checklist before commissioning
1
After the installation of the unit, check the items listed below.
2
Close the unit.
