8 Finishing the outdoor unit installation
Installation manual
17
50A9
R32 Split series
3P600450-8T – 2022.09
Component
Power supply
cable
Voltage
220~240 V
Current
2MXM40: 9.8 A
2MXM50: 13.3 A
Phase
1~
Frequency
50 Hz
Wire size
MUST comply with national
wiring regulation
3-core cable
Wire size based on the
current, but not less than
2.5 mm
2
Interconnection
cable
(indoor↔outdoor)
Voltage
220~240 V
Wire size
Only use harmonised wire
providing double insulation
and suitable for applicable
voltage
4-core cable
Minimum 1.5 mm
2
Recommended circuit breaker
16 A
Earth leakage circuit breaker /
residual current circuit breaker
MUST comply with national
wiring regulation
7.2
To connect the electrical wiring to
the outdoor unit
1
Remove the switch box cover (2 screws).
2×
2
Connect the wires between the indoor and outdoor units so that
the terminal numbers match. Make sure to match the symbols
for piping and wiring.
3
Make sure to connect correct wiring to correct room (A to A, B
to B).
e
-A
a
-A
a
-B
e
-B
b
c
d
1
2
3
L
N
1
2
3
f
a
Terminal for room (A, B)
b
Circuit breaker
c
Residual current device
d
Power supply wire
e
Interconnection wire for room (A, B)
f
Wire retainer
4
Tighten the terminal screws securely using a Phillips
screwdriver.
5
Check that the wires do not disconnect by pulling them lightly.
6
Firmly secure the wire retainer to avoid external stress on wire
terminations.
7
Pass the wiring through the cutout on the bottom of the
protection plate.
8
Make sure the electrical wiring does not contact with the gas
piping.
1
2
3
1 2 3 1 2 3
2×
1
2
3
L
N
A
B
9
Reattach the switch box cover and the service cover.
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:
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.
9
Configuration
9.1
About ECONO mode prohibition
setting
This setting disables the input control signal from the user interface.
Use this setting when you wish to block reception of input controls
(cooling/heating) from indoor unit user interfaces.
