Installation Manual
‒ 24 ‒
24-EN
10
ELECTRICAL CONNECTION
WARNING
• Use the specified wires for wiring connect the terminals. Securely fix them to prevent
external forces applied to the terminals from affecting the terminals.
Incomplete connection or fixation may cause a fire or other trouble.
• Connect earth wire. (grounding work)
Incomplete grounding cause an electric shock.
Do not connect earth wires to gas pipes, water pipes, lightning conductor or telephone earth wires.
• 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 fire.
• Under no circumstances, the power supply wire or the indoor and outdoor connecting wire
must not be connected in the middle (Connection using a solderless terminal etc.)
Connection trouble in the places where the wire is connected in the middle may give rise to smoking
and/or a fire.
CAUTION
• For power supply specifications, follow the Installation Manual of outdoor unit.
• Do not connect 220 – 240V power to the terminal blocks (
A
,
B
) for control wiring.
Otherwise, the system will fail.
• Do not damage or scratch the conductive core and inner insulator of power and Indoor / Outdoor
connecting wires while peeling them.
• 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.
• Do not turn on the power of the indoor unit until vacuuming of the refrigerant pipes completes.
Wiring specifications
Indoor / Outdoor connecting wires specifications
Indoor unit power supplied from outdoor unit
• The outdoor unit power supply patterns vary on models.
Indoor unit power supply
1~50 Hz 220 - 240V
1~60 Hz 220V
Indoor / Outdoor connecting wires*
4 × 1.5 mm² or more
(H07RN-F or 60245 IEC 66)*
Up to 70 m
*Number of wire × wire size
*Including earth line
Remote controller wiring
Remote controller wiring, remote controller inter-unit
wiring
Wire size: 2 × 0.5 to 2.0 mm²
Total wire length of remote controller wiring and
remote controller inter-unit wiring
= L + L1 + L2 + … Ln
In case of wired type only Up to 500 m
2 remote controllers Up to 300 m
In case of wireless type included Up to 400 m
Total wire length of remote controller inter-unit wiring = L1 + L2 + … Ln Up to 200 m
* The remote controller wiring length differs depending on the remote controller used. For details, refer to the
Installation Manual attached to the remote controller.
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