31
Λ
●
Be sure to run the power supply cable and communication cable through the electrical conduit as
shown in the diagram.
●
Select either the left and right knockout
hole of outdoor unit.
●
The communication cable, indoor power cable
and main power cable shall be run through
conduit and separated by 2” minimum.
communication cable
indoor power cable
main power cable
Indoor unit 1
Outdoor unit
Indoor unit 2 Indoor unit 3
●
The communication cable shall be wired as follows:
●
When the communication cable exceeds the maximum length, the operation of
air conditioner may be impossible due to the trouble of communication interference
between indoor and outdoor unit.
- Maximum wire length : less than 360ft.
- Total wiring length : less than 720ft.
- Maximum communication branches : 10 branches
●
Be sure to install the power supply cable
the furthest distance from the communication cable.
●
Take care that the pipe and wire do not touch each other.
liquid refrigerant
pipe
gas refrigerant
pipe
7-5. Interconnect wiring diagram
7-6. Power wiring and communication wiring configuration
2.5HP Outdoor unit
- Max. length of communication cable : 360ft.
- Whole length of cable : 720ft.
- Allowable branches : 10
5-2.Installation_TM_E_06890 2/27/03 10:16 AM Page 31