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English
12
Wiring
WARNING
• Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, electrical
shock, or fire.
• Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the ter-
minal block.) Doing so may cause electric shock or fire.
• Be sure to install an earth leakage breaker. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that an earth leakage breaker capable of handling harmonics must be used, in order
to prevent malfunctioning of the earth leakage breaker itself.)
• Use an all-pole disconnection type breaker with at least 3 mm between the contact point gaps.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
Equipment complying with EN/IEC 61000-3-12
(1)
according to the following table:
• Do not turn on the safety breaker until all work is
completed.
1) Strip the insulation from the wire (20mm).
2) Connect the inter-unit wires between the indoor
and outdoor units
so that the terminal numbers
match
. Tighten the terminal screws securely.
We recommend a flathead screwdriver be used
to tighten the screws. The screws are packed
with the terminal board.
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
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Earth
This air conditioner must be earthed.
For earthing, follow the applicable local standard for electrical installations.
(1) European/International Technical Standard setting the limits for harmonic currents produced by equipment connected to
public low-voltage systems with input current >16 A and
≤
75 A per phase.
Model
Compliance with EN/IEC 61000-3-12
3MXS40K3V1B2
NO
3MXS52E4V1B2
YES
3AMX52E4V1B2
YES
Safety breaker
Earth leakage
circuit breaker
Outdoor unit
50Hz
220-240V
Be sure to use the dedicated circuits.
To room B
To room C
To room D
Inter-unit wire
4-core 1.5mm² or more
H05RN
Room
A
Room A
Room
C
Room
D
Room
B
Indoor unit
Power supply wire
3-core 2.5mm² or more
H05RN
L
N
Shape the wires so that
there is no lifting of the
service hatch or other
structural parts.
Secure the branch wiring firmly using
the 4
included screws
, as shown in the figure.
Secure firmly, making sure no outside pressure is
exerted on the terminals.
Use the specified wires and
connect them securely.
CAUTION
When connecting the connection wires to the
terminal board using a single core wire, be sure
to perform curling.
Problems with the work may cause heat and fires.
Good
Wrong
Good
Wrong
• Ground terminal installation
Use the following method when installing the round
crimp-style terminal.
Round crimp-
style terminal
Flat washer
Screw
Flat washer
Round crimp-
style terminal
Screw
