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8. ELECTRIC WIRING
WARNING
Using the exclusive circuit, a person qualified for electrician shall work for the electric
work in conformance with the regulations of the local electric company and the Installation
Manual.
If there is capacity shortage of the power circuit or incomplete electric work, a fire or electric shock is caused.
For cabling, use the specified cables and connect them securely so that external force of
cable does not transmit to the terminal connecting section.
If connection or fixing is incomplete, a fire is caused.
Be sure to connect the earth wire.
Grounding work is necessary based upon a law. If the earth grounding is incomplete, an electric shock is
caused.
Do not connect earth wire to gas pipe, lightning rod, or earth wire of telephone.
CAUTION
Be sure to attach an earth leakage breaker; otherwise an electric shock may be caused.
To Disconnect the Appliance from Main Power Supply.
This appliance must be connected to the main power supply by means of a switch with a contact separation
of at least 3 mm.
REQUIREMENT
• Perform wiring of the power supply in conformance with the regulations of the local electric company.
• For wiring of power supply in the indoor unit, refer to the Installation Manual of each indoor unit.
• Never connect the 220–240V power to the terminal block (U1, U2, U3, U4, U5, U6) for control cables.
(Trouble is caused.)
• Arrange the cables so that the electric wires do not come to contact with high-temperature part of the pipe;
otherwise coating melts and an accident may be caused.
• After connecting cable to the terminal block, take off the trap and then fix the cable with cable clamp.
• Store wiring system for control and refrigerant piping system in the same line.
• Do not turn on power of the indoor unit until vacuuming of the refrigerant pipe will finish.
• For cabling of the power supply of the indoor unit and the inter-unit cabling between indoor and outdoor units,
refer to the Installation Manual of indoor unit.