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6. Remove the control box lid, and then connect the remote controller wiring to terminals
P1 and P2 (no polarity) of the terminal block (X1M).
8. ELECTRIC WIRING WORK
8-1 GENERAL INSTRUCTIONS
• Electric wiring work must be conducted by an electrician authorized by power companies (Only a licensed
electrician is permitted to conduct electric work and earth connections.)
• All wiring must be performed by an authorized electrician.
• A circuit breaker capable of shutting down power supply to the entire system must be installed.
• Be sure to install an earth leakage circuit breaker in the outdoor unit.
(Install the earth leakage circuit breaker to avoid electric shocks and fire.)
• The specified voltage for the wiring between the indoor and outdoor units and between the indoor units is
220-240V.
• Do not turn on the power supply (of the indoor unit) until all the installation work is completed.
• Be sure to earth the air conditioner.
• Refer to the installation manual attached to the outdoor unit for the size of power supply electric wire
connected to the outdoor unit, the capacity of the circuit breaker and switch, and wiring instructions.
• Do not connect the earth wire to gas pipes, plumbing pipes, lightning rods, or telephone earth wires.
•
Gas pipes: might cause explosions or fire if gas leaks.
•
Plumbing: no earth effect if hard vinyl piping is used.
•
Telephone earth wires or lightning rods: might cause abnormally high electric potential in the earth
during lighting storms.
• For electric wiring work, refer also to “WIRING DIAGRAM” attached to the back side of the control box lid.
• Never connect the power supply wire to the terminal block for remote controller wire, or otherwise the entire
system may be damaged.
• For remote controller wiring details, refer to the installation manual attached to the remote controller.
• Do not touch the printed circuit board assy during the wiring work. Otherwise, it may cause damage.
• Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps.
Low voltage wires
High voltage wires and
earth wire
Fig. 28
Remote controller
wiring (13)
(accessory)
Terminal block (X1M : 4P)
3PEN486970-1D.book Page 19 Monday, July 24, 2017 8:54 AM