9
English
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 leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling harmonics in order to
prevent malfunctioning of the earth leak detector 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.
• 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 connection wires between the
indoor and outdoor units
so that the terminal
numbers match.
Tighten the terminal screws
securely. We recommend a flathead screw-
driver be used to tighten the screws.
NOTE
(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.
Observe the notes mentioned following 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 following instruction.
Place the round crimp-style terminals on the wires up to the covered part and
secure in place.
• Ground terminal installation
Use the following method when installing the round
crimp-style terminal.
1
2
3
1 2 3
L N
Safety
breaker
20A
Earth leakage
circuit breaker
Earth
Firmly fix the wires with
the terminal screws.
Outdoor unit
Indoor
unit
Power
supply
50Hz 220-240V
Firmly fix the wires with
the terminal screws.
Inter-unit wire
4-core 1.5mm² or more
H05RN
Power supply wire
3-core 2.5mm² or more
H05RN
Use the specified wire type
and connect it securely.
Firmly secure wire retainer
so wire terminations will not
receive external stress.
Power supply
terminal block
L
N
1
2
3
Stranded
Wire
Round crimp-style
terminal
Good
Wrong
Round crimp-
style terminal
Flat washer
Screw
Flat washer
Round crimp-
style terminal
Screw
3PEN188780-2R.book Page 9 Wednesday, March 16, 2016 3:46 PM
