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Wiring
WARNING
1) Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, electrical shock, or fire.
2) Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the
terminal block.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leakage breaker. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leakage breaker capable handling harmonics in order
to prevent malfunctioning of the earth leakage breaker itself.)
4) Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps.
5) Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
• Do not turn ON the power supply until all work is completed.
1) Strip the insulation from the wire (20mm).
2) Connect the inter-unit wirings 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.
Observe the notes mentioned below when wiring to the power supply terminal board.
Precautions to be taken for power supply wiring.
Use a round crimp-style terminal for connection to the power supply terminal board.
In case it cannot be used due to unavoidable reasons, be sure to observe the follow-
ing instruction.
Place the round crimp-style terminals on the wires up to the covered part and
secure in place.
CAUTION
When connecting the inter-unit wirings to the terminal board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Stripping wire at terminal block
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
nEnglish
2
3
1
Use the specified wire type
and connect it securely.
Firmly fix the wires with
the terminal screws.
When wire length exceeds 10m,
use 2.0mm diameter wires.
1
Indoor
2
3
unit
Firmly fix the wires with
the terminal screws.
1
2
3
Firmly secure wire retainer so wire
terminations will not receive external stress.
Strip wire end
to this point.
Outdoor unit
1 2 3
L N
Use 2.0mm diameter wires.
Earth leakage
Fuse
circuit breaker
20A
H05RN
Earth
Power supply
terminal block
Shape wires so
that the stop valve
cover fit securely.
Round crimp-style
terminal
Excessive strip length
may cause electrical
shock or leakage.
Good
Wrong
Power supply
50Hz 220-240V
Stranded Wire
10
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