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4. ELECTRICAL WIRING
4-1. General Precautions on Wiring
(1) Before wiring, confirm the rated voltage of the unit as
shown on its nameplate, then carry out the wiring closely
following the wiring diagram.
WARNING
(2) This equipment is strongly recommended to be
installed with Earth Leakage Circuit Breaker (ELCB)
or Residual Current Device (RCD). Otherwise, it may
cause electrical shock and fire in case of equipment
breakdown or insulation breakdown.
Earth Leakage Circuit Breaker (ELCB) must be
incorporated in the fixed wiring in accordance with the
wiring regulations. The Earth Leakage Circuit Breaker
(ELCB) must be an approved circuit capacity, having a
contact separation in all poles.
(3) To prevent possible hazards from insulation failure, the
unit must be grounded.
(4) Each wiring connection must be done in accordance with
the wiring system diagram. Wrong wiring may cause the
unit to misoperate or become damaged.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can be very
dangerous. The manufacturer will accept no responsibility
for any damage or misoperation that occurs as a result of
such unauthorized changes.
(7) Regulations on wire diameters differ from locality to
locality. For field wiring rules, please refer to your LOCAL
ELECTRICAL CODES before beginning. You must
ensure that installation complies with all relevant rules and
regulations.
(8) To prevent malfunction of the air conditioner caused by
electrical noise, care must be taken when wiring as follows:
● The remote control wiring and the inter-unit control
wiring should be wired apart from the inter-unit power
wiring.
● Use shielded wires for inter-unit control wiring between
units and ground the shield on both sides.
(9) If the power supply cord of this appliance is damaged,
it must be replaced by a repair shop appointed by the
manufacturer, because special purpose tools are required.
(10) Using a waterproof conduit is recommended for outdoor
unit wiring to avoid damaging the wire and to prevent
accumulation of liquid inside the unit.
(11) Protect the outdoor unit wiring with a conduit material
or supplied protection bushing to avoid damages by the
edges of knockout hole. If any openings occur between the
protection bushing and wiring, seal the opening entirely.
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