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7. Electrical work
1
2
0
4
3
6
7
5
Fig. 7-2
Indoor terminal block
2
1 2
5
1
6
3
Outdoor terminal block
Power supply cord
Fig. 7-3
4
5
9
8
Earth wire (green/yellow)
4
Indoor/outdoor unit
connecting wire
3-core 1.5 mm
2
or more
L N
7
7.2. Indoor wire connection (Fig. 7-2)
Work procedure
1.Remove 2 screws to detach the electric component cover.
2.Route each cable through the wiring intake into the electric component box. (Pro-
cure power cable and in-out connecting cable locally and use remote control cable
supplied with the unit.)
3.Securely connect the power cable and the in-out connecting cable and the remote
control cable to the terminal blocks.
4.Secure the cables with clamps inside the electric component box.
5.Attach the electric component cover as it was.
• Fix power supply cable and indoor/outdoor cable to control box by using buffer
bushing for tensile force. (PG connection or the like.)
Warning:
• Attach the electrical part cover securely. If it is attached incorrectly, it could
result in a fire, electric shock due to dust, water, etc.
• Use the specified indoor/outdoor unit connecting wire to connect the indoor
and outdoor units and fix the wire to the terminal bed securely so that no
stress is applied to the connecting section of the terminal bed. Incomplete
connection or fixing of the wire could result in a fire.
• The wiring configuration of the indoor unit's fan motor is for a 50 Hz power
supply. The wiring must be reconfigured if a 60 Hz power supply is used.
Refer to the wiring diagram for details.
1 Entry for wired remote controller cable
2 Entry for Indoor-Outdoor connecting cable
3 Cable clamp
4 Remote controller terminal
5 Indoor/Outdoor unit connecting terminal
6 To wired remote controller
7 To outdoor unit
8 Indoor controller
9 Power board
0 Earth cable
• Perform wiring as shown in the diagram to the lower left. (Procure the cable lo-
cally). (Fig. 7-3)
Make sure to use cables of the correct polarity only.
1 Connecting cable
Cable 3-core 1.5 mm
2
, in conformity with Design 245 IEC 57.
2 Indoor terminal block
3 Outdoor terminal block
4 Always install an earth wire (1-core 1.5 mm
5 Remote controller cable (non-polar)
2
Cable 2-core 0.3 mm
The 10 m wire is attached in the remote controller accessory. Max. 500 m
6 Wired remote controller
7 Power supply cord
Caution:
• Use care not to make miswiring.
• Firmly tighten the terminal screws to prevent them from loosening.
• After tightening, pull the wires lightly to confirm that they do not move.
2
) longer than other cables
7
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