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Insulation process
REQUIREMENT
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W
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33-EN
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8
Electrical connection
WARNING
1. Use predefined wire and connect them certainly.
Keep the connecting terminal free from external
force.
Improper wire connection or clamping may result in
x
exothermic, fire or malfunction.
2. Connect grounding wire. (grounding work)
Incomplete grounding cause an electric shock.
Do not connect grounding wires to gas pipes,
water pipes, lightning rods or grounding wires for
telephone wires.
3. The appliance shall be installed in accordance
with national wiring regulation.
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 fi re 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 specifi ed
thickness, type, and protective devices required.
• Do not connect 208/230V power to the terminal
blocks (Uv (U1)), (Uv (U2)), (A), (B) 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
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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.
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Power supply
Power supply
208/230-1-60
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.
34-EN
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