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8 Finishing the outdoor unit installation
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:
a
a
Interconnection cable
b
Power supply cable
c
Circuit breaker (field provided fuse with rating according
to the model name plate)
d
Residual current device
e
Power supply
f
Earth
L
4×
1 2 3
L N
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
DANGER: RISK OF ELECTROCUTION
▪ Make sure that the system is earthed properly.
▪ Turn OFF the power supply before servicing.
▪ Install the switch box cover before turning ON the
power supply.
1 Insulate and fix the refrigerant piping and cables as follows:
d
c
a
e
b
f
g
a
Gas pipe
b
Gas pipe insulation
c
Interconnection cable
Installation manual
14
50 Hz
220-240 V
b
c
d
e
f
1
2
3
N
50 Hz
220~240 V
d
Field wiring (if applicable)
e
Liquid pipe
f
Liquid pipe insulation
g
Finishing tape
2 Install the service cover.
9
Commissioning
NOTICE
General
commissioning
commissioning instructions in this chapter, a general
commissioning checklist is also available on the Daikin
Business Portal (authentication required).
The general commissioning checklist is complementary to
the instructions in this chapter and can be used as a
guideline and reporting template during commissioning and
hand-over to the user.
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.
3 Power up the unit.
The indoor unit is properly mounted.
The outdoor unit is properly mounted.
The system is properly earthed and the earth terminals
are tightened.
The power supply voltage matches the voltage on the
identification label of the unit.
There are NO loose connections or damaged electrical
components in the switch box.
There are NO damaged components or squeezed
pipes on the inside of the indoor and outdoor units.
There are NO refrigerant leaks.
The refrigerant pipes (gas and liquid) are thermally
insulated.
The correct pipe size is installed and the pipes are
properly insulated.
The stop valves (gas and liquid) on the outdoor unit are
fully open.
Drainage
Make sure drainage flows smoothly.
Possible consequence: Condensate water might drip.
The indoor unit receives the signals of the user interface.
The specified wires are used for the interconnection
cable.
The fuses, circuit breakers, or locally installed protection
devices are installed according to this document, and
have NOT been bypassed.
9.2
Checklist during commissioning
To perform an air purge.
RXTJ-A, RXTA-C, RXTM-A, RXTP-A, ARXTM-A
checklist.
Next
to
the
R32 split series
3P600450-11Y – 2024.04
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