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10
ELECTRICAL CONNECTION
WARNING
1. Use predefined wire and connect them
certainly. Keep the connecting terminal
freefrom external force.
Improper wire connection or clamping may
result in exothermic, fire or malfunction.
2. Connect ground wire. (grounding work)
Incomplete grounding cause an electric
shock. Do not connect ground wires to gas
pipes, water pipes, lightning rods or ground
wires for telephone wires.
3. Install appliance in accordance with
national wiring regulations.
Capacity shortage of circuit breaker or
incomplete installation may cause an electric
shock or a fire.
CAUTION
• Consult local building codes, NEC (National
Electrical Code) or CEC (Canadian Electrical
Code) for special requirements.
• If incorrect / incomplete wiring is carried out, it
will cause an electrical fire or smoke.
• Install circuit breaker is not tripped by shock
waves. If circuit breaker is not installed,an
electric shock may be caused.
• Use the cord clamps attached to the product.
• Do not damage or scratch the conductive core
and inner insulator of power and control wires
when peeling them.
• Use the power cord and control wire of specifed
thickness, type, and protective devices required.
• Do not connect 208/230V power to the terminal
blocks (U1, U2, A, B etc.) for control wiring.
(Otherwise,the system will fail.)
• Perform the electric wiring so that it does not
come to contact with the high-temperature part
of the pipe.
The coating may melt resulting in an accident.
• Do not turn on the circuit breaker of the
indoor unit until vacuuming of the refrigerant
pipes completes.
REQUIREMENT
• For power supply wiring, strictly conform to the
Local Regulation in each country.
• Run the refrigerant piping line and control wiring
line in the same line.
Power supply wire and
control wires specifications
Power supply wire and control wires are locally
procured.
For the power supply specifications, follow to the
table below. If capacity is little, it is dangerous
because overheat or seizure may be caused.
Indoor unit power supply
For the power supply of the indoor unit, prepare
the exclusive power supply separated from that
of the outdoor unit.
Power supply
Power supply
Control wiring, Central control wiring
• 2-core with non-polarity wires are used for the
control wiring between indoor unit and
outdoor unit and Central control wiring.
To prevent noise trouble, use 2-core shielded wire.
The length of the communication line means the
total length of the control wire length between
indoor and outdoor units added with the central
control wire length.
– 22 –
Installation Manual
208/230-1-60
EN
22-EN
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