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ELECTRIC WIRING
WARNING
Electrical work must be performed by a qualified electrician in accordance with the installation manual.
Ensure the air conditioner uses a designated power supply.
An insufficient power supply capacity or inappropriate installation may cause a fire.
When connecting the installation wiring, be sure that all fixing terminal are securely fixed.
Ensure earthling practice is correctly performed.
Grounding is necessary, if earthling practice is incomplete an electric shock maybe caused.
CAUTION
The installation fuse must be used for the power supply line of this outdoor unit.
Incorrect/incomplete wiring might cause an electrical fire or smoke.
Prepare the exclusive power supply for the outdoor unit.
Ensure an electrical leakage breaker is fitted. This is to prevent the risk of electric shock.
To Disconnect the Appliance from Main Power Supply.
This appliance must be connected to a 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 authorities.
For wiring of the power supply in the indoor unit, refer to the Installation Manual of the relevant indoor unit.
Never connect 220240V to the terminal block (U1, U2, U3, U4). (Fault will be caused.)
Arrange the electrical wiring so that they do not come into contact with high-temperature parts of the pipework;
this is to prevent the risk of insulation melting and causing a possible accident.
After connecting wires to the terminal block, secure wiring with cable clamp.
Install control wiring and refrigerant piping within the same line.
Do not turn on power of the indoor unit until vacuuming of the refrigerant pipe has finished.
For cabling of the power supply of the indoor units cabling between indoor and outdoor units, refer to the
Installation Manual of the indoor unit.
Knockout for
control wiring and
refrigerant piping
Knockout for
power supply wiring
Connection of power supply wire with control wire
Insert power supply wire and control wire after
removing knockout of the piping/wiring panel at front
side of the outdoor unit.
The knockout piping and the wiring hole are also
provided to the front surface, the right side, and the
rear side.
Note :
Be sure to separate the power supply wires and each control wire.
Arrange the power supply wires and each control wire so that they do not contact with the bottom surface of the
outdoor unit.
A terminal block (U3, U4 terminal blocks) for connecting an optional part Central remote controller etc. is
provided on the inverter unit, so be careful to miswiring.
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