15
15
Outdoor Unit Installation
7.
Wiring
WARNING
• Do not use tapped wires, extension cords, or starburst connections, as they may cause overheating, electrical shock, or fi re.
•
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 fi re.
•
Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that an earth leak detector capable of handling harmonics must be used in order to
prevent any malfunction of the earth leak detector itself.)
• Use an all-pole disconnection type circuit breaker with at least 3mm between the contact point gaps.
•
The earth leakage circuit breaker must operate at 30mA or lower.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fi re.
•
Do not turn on the circuit 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 fl athead screwdriver be used to tighten the screws. The screws are packed with the terminal
block.
1
2
3
1 2 3
L N
Power supply wire
3-core 2.5mm² or more
60245 IEC 57
H05RN
Firmly fi x the wires with the terminal screws.
Inter-unit wire
4-core 1.5mm² or more
60245 IEC 57
H05RN
Indoor
unit
Outdoor
unit
Circuit breaker
16A
Earth leakage
circuit breaker
Power supply
50Hz 220-240V
Earth
Firmly fi x the wires with
the terminal screws.
1
2
3
Use the specifi ed wire type
and connect it securely.
1
2
3
Power supply
terminal block
Firmly secure wire retainer
so wire terminations will
not receive external stress.
Shape wires so
that the service
lid fi ts securely.
CAUTION
•
When using stranded wires, make sure to use a
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
• Use the following method when installing a round crimp-style terminal.
A
Flat washer
Screw
Round crimp-style terminal
Good
Flat washer
Screw
Round crimp-style
terminal
Wrong
Screw
Round crimp-style
terminal
Flat washer
Arrow view
A
• Use the following method when installing a single
core wire.
Good
Wrong
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