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Be sure to run the power supply cable and communication cable through the electrical conduit as
shown in the right side figure.
●
Select the power supply cable from the left and
right knockout hole of outdoor unit.
●
The communication cable, indoor power cable
and main power cable shall be run through
the aluminum protection tube and
separated with the distance of 50 mm.
communication cable
indoor power cable
main power cable
Indoor unit 1
Outdoor unit
Indoor unit 2 Indoor unit 3
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The communication cable shall be wired as follows:
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When the communication cable exceeds the specified length, the operation of
air conditioner may be impossible due to the trouble of communication
between indoor and outdoor unit.
- Maximum wire length : less than 120 m
- Total wiring length : less than 240 m
- Maximum communication branch cable: 10 branches
●
Be sure to install the power supply cable with the
separation distance from the communication cable.
●
Take care that the pipe and wire do not contact each other.
liquid refrigerant
pipe
gas refrigerant
pipe
6-5. Connection cord wiring diagram
6-6. Power wiring and communication wiring configuration
DVM E-D/B(chapter5)-E<03759 3/21/02 7:40 PM Page 25