GM V5 Compact Series VRF Outdoor Unit
24
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
Fig.19 shows the communication wiring between indoor unit and wire controller.
Fig.19 The communication wiring between indoor unit and wire controller
(2)
The communication wire between indoor unit and outdoor (or indoor) unit
The following table shows the material of communication wire,
the length (L) of
the communication wire
between indoor unit and outdoor (or indoor) unit, the
sectional area
of communication wire.
Material
Length L(m)
Sectional area
(mm
2
)
Standard
Remarks
RVV
L≤1000
≥2×0.75
GB/T 5023.3-2008
If the diameter increases to 2×1mm
2
,
the length (L) should enlarge. But the
length (L) should be less than 1500m.
Fig.20 The communication wiring between indoor unit and outdoor unit
内机
1
内机
2
内机
n
L1
L2
Ln
IDU No.1
IDU No.2
IDU No.n
M inor
wired
controller
M ain
wired
controller
IDU No.1
IDU No.2
IDU No.3
IDU No.n
