Gree GMV-ND280PH/A-T

GMV5 Compact Series VRF Outdoor Unit
23
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
The following table shows the material of communication wire, the length (L) of the communication wire
between indoor unit and wire controller, the sectional area of communication wire.
Material Length L(m) sectional area (mm
2
) Standard Remarks
RVV L≤250 ≥2×0.75 GB/T 5023.3-2008 L≤250m
Outdoor unit
Communication with IDUS
IDU No.1 IDU No.2
IDU No.n
(
16max
)
Wired controlle
r
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.