En-12
6. ELECTRICAL WIRING
WARNING
• Electrical work must be performed in accordance with this
Manual by a person certi
fi
ed under the national or regional
regulations. Be sure to use a dedicated circuit for the unit.
An insuf
fi
cient power supply circuit or improperly performed
electrical work can cause serious accidents such as electric
shock or
fi
re.
• Before starting work, check that power is not being supplied
to the indoor unit and outdoor unit.
• For wiring, use the prescribed type of cables, connect them
securely, making sure that there are no external forces of the
cables applied to the terminal connections.
Improperly connected or secured cables can cause serious
accidents such as overheating the terminals, electric shock,
or
fi
re.
• Securely install the electrical box cover on the unit.
An improperly installed electrical box cover can cause
serious accidents such as electric shock or fire through
exposure to dust or water.
• Install sleeves into any holes made in the walls for wiring.
Otherwise, a short circuit could result.
• Use the included connection cables and power cables or
ones speci
fi
ed by the manufacturer. Improper connections,
insuf
fi
cient insulation, or exceeding the allowable current can
cause electric shock or
fi
re.
• Do not modify the power cables, use extension cables,
or use any branches in the wiring. Improper connections,
insuf
fi
cient insulation, or exceeding the allowable current can
cause electric shock or
fi
re.
• Match the terminal block numbers and connection cable
colors with those of the outdoor unit. Erroneous wiring may
cause burning of the electric parts.
• Securely connect the connection cables to the terminal
board. In addition, secure the cables with wiring holders.
Improper connections, either in the wiring or at the ends of
the wiring, can cause a malfunction, electric shock, or
fi
re.
• Always fasten the outside covering of the connection cable
with the cable clamp. (If the insulator is chafed, electric
leakage may occur.)
• Install a ground leakage breaker. In addition, install the
ground leakage breaker so that the entire AC main power
supply is cut off at the same time. Otherwise, electric shock
or
fi
re could result.
• Install a ground leakage breaker.
If a ground leakage breaker is not installed, it may cause
electric shock or
fi
re.
• Always connect the ground cable.
Improper grounding work can cause electric shocks.
• Install the remote control cables so as not to be direct
touched with your hand.
• Perform wiring work in accordance with standards so that the
air conditioner can be operated safely and positively.
• Connect the connection cable
fi
rmly to the terminal board.
Imperfect installation may cause a
fi
re.
CAUTION
• Ground the unit.
Do not connect the ground cable to a gas pipe, water pipe,
lightning rod, or a telephone ground cable.
Improper grounding may cause electric shock.
• Do not connect power supply cables to the transmission or
remote control terminals, as this will damage the product.
• Never bundle the power supply cable and transmission cable
together. Bundling these cables together will cause miss
operation.
• When handling PCB, static electricity charged in the body
may cause malfunction of the PCB. Follow the cautions
below:
• Establish a ground for the indoor and outdoor units and
peripheral devices.
• Cut power (breaker) off.
• Touch metal part of the indoor and outdoor units for more
than 10 seconds to discharge static electricity charged in
the body.
• Do not touch terminals of parts and patterns implemented
on PCB.
6.1. Electrical requirement
Voltage rating
230 V
Operating range
198 - 264 V
Recommended
cable size
(mm
2
)
Cable type
Remark
Power supply
cable
2.5
Type245
IEC57 or
equivalent
1ø 50 Hz
198–264 V
2 Cable +
ground
Transmission
cable
0.33
LONWORKS
compatible
cable
22 AWG LEVEL
4 (NEMA)
non-polar 2 core,
twisted pair solid
core diameter
0.65 mm
Remote control
cable
0.33
Sheathed PVC
cable*
Polar 3 core
Twisted pair
*: Use shielded cable in accordance with local rules for
remote control cable.
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