GM V5 Compact Series VRF Outdoor Unit
23
respectively, and install the wiring lid.
Note:
1
、
Communication wire of the last indoor unit is assorted wire (resistance suited);
2
、
When indoor unit is Wall Type IDU, both input and output communication wires are offered by the Wall
Type IDU.
3
、
If the units were placed at a place with stronger electromagnetism, the communication wire between indoor
unit and wire controller should use screen wire for shielding the electromagnetism, and the communication
wire between indoor unit and outdoor (or indoor) unit should use STP for shielding the electromagnetism.
Fig.18 Communication wiring
4.7.2 Choice of the Material of Communication Wire
Note: If the units were placed at a place with stronger electromagnetism, the communication wire between
indoor unit and wire controller should use screen wire for shielding the electromagnetism, and the communication
wire between indoor unit and outdoor (or indoor) unit should use STP for shielding the electromagnetism.
(1)
The communication wire between indoor unit and wire controller
Outdoor unit
A
Communication with IDUS
IDU No.1
IDU No.2
IDU No.n(16max)
Wired controller