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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 3mm 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)
.
• 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 block.
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
n
Earth
This air conditioner must be earthed.
For earthing, follow the applicable local standard for electrical installations.
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
Room
A
Room A
Room
C
Room
D
Room
B
Indoor unit
Power supply wire
3-core 2.5mm² or more
H05RN
Inter-unit wire
4-core 1.5mm² 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
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
• When connecting the connection wires to the
terminal block using a single core wire, be sure
to perform curling.
Problems with the work may cause heat and fires.
• If the stranded wires must be used, make sure to
use the round crimp-style terminal for connection
to the power supply terminal block. Place the
round crimp-style terminals on the wires up to the
covered part and secure in place.
Stranded wire
Round crimp-style terminal
(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.
