Gree GMV-400WM/B-X - Page 41

D.C. Inverter Multi VRF Modular
38
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤250
2×0.75~2×1.25
IEC
60227-5:2007
1. Total length of communication line
can't exceed 250m.
2. The cord shall be Circular cord (the
cores shall be twisted together).
3. If unit is installed in places with intense
magnetic field or strong interference, it is
necessary to use shielded wire.
Graphic of connection between IDU and wired controller
Fig.41
(2) Select communication wire between ODU and IDU
Material Type
Total Length L(m) of
Communication Cable
between IDU Unit and
IDU (ODU ) Unit
Wire size
(mm
2
)
Material
Standard
Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤1000
≥2×0.75
IEC
60227-5:2007
1. If the wire diameter is enlarged to 2 × 1
mm
2
, the total communication length can
reach 1500m.
2. The cord shall be Circular cord (the
cores shall be twisted together).
3. If unit is installed in places with intense
magnetic field or strong interference, it is
necessary to use shielded wire.
Fig.42
4.6.3.2 Connection mode of communication
(1) All communication wires of GMV5 must be connected in series rather than in star.