11
n
English
Wiring
WARNING
• Do not use tapped wires, stranded wires (
CAUTION
1)), extension cords, or starburst connections, as they may cause over-
heating, 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.
• 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 out-
door 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.
CAUTION
• When connecting the inter-unit wire 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.
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire retainer.
Room
A
Room A
Room
B
Outdoor unit
Indoor unit
Be sure to use the dedicated circuits.
Safety breaker
Earth leakage
circuit breaker
50Hz
220-240V
To room B
Inter-unit wire
4-core 1.5mm² or more
H05RN
Power supply wire
3-core 2.5mm² or more
H05RN
Stranded wire
Round crimp-style
terminal
Good
Wrong
Good
Wrong
1
2
3
L
N
1
2
3
Make sure the connecting
piping and wiring fit
into .
(Incorrect handling will
make it hard to attach the
stop valve cover, causing
deformation.)
ROOM-A
ROOM-B
A
B
A
B
Piping
Piping
Wiring
Wiring
Outdoor
unit
ROOM-A
ROOM-B
Piping
Piping
Wiring
Wiring
Outdoor
unit
Make absolutely sure all wiring is correct.
Make sure the wiring and piping from the indoor unit to the outdoor unit match.
4
4
P
Good
Wrong
Shape wires so that the stop
valve cover fits securely.
Firmly secure wire retainer
so wire terminations will not
receive external stress.
Also use the two screws
located at the bottom of
the packing case to tighten
the four locations.
Power supply
ROOM-A
ROOM-B
Use the
specified wire
type and
connect it
securely.
Be sure to clamp the wire for
power source on this location.
ROOM-A
ROOM-B
Liquid piping
Gas piping
Liquid piping
Gas piping
Wire retainer
Refer to the figure.
Make sure the electrical
wiring does not come into
contact with the gas piping.
