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25
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25-EN
Installation Manual
10
ELECTRICAL CONNECTION
WARNING
1. Using the speci
fi
ed wires, ensure to
connect the wires, and
fi
x wires securely so
that the external tension to the wires do not
affect the connecting part of the terminals.
Incomplete connection or
fi
xation may cause a
fi
re, etc.
2. Be sure to connect earth 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. Appliance shall be installed in accordance
with national wiring regulations.
Capacity shortage of power circuit or
incomplete installation may cause an electric
shock or a
fi
re.
CAUTION
•
For communication line, use wires with
the same type and size. If each wire has a
different type and size from another one,
it will cause a communication trouble.
• If incorrect / incomplete wiring is carried out,
it will cause an electrical
fi
re or smoke.
• Install an earth leakage breaker that is not
tripped by shock waves.
If an earth leakage 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 supply wire and control wires
of speci
fi
ed thickness, type, and protective
devices required.
• Do not connect 208-240V 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.
REQUIREMENT
• For power supply wiring, strictly conform to
the Local Regulation in each country.
• For wiring of power supply of the outdoor
units, follow the Installation Manual of each
outdoor unit.
• 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.
• After connecting wires to the terminal blocks,
provide a trap and fix wires with the cord
clamp.
• Run the refrigerant piping line and control
wiring line in the same line.
• Do not turn on the power of the indoor unit
until vacuuming of the refrigerant pipes
completes.
