ERV+DX coil
17
Table 3-2 Selection of wired controller communication wire
Wire material
type
Total length of
communication
line between
indoor unit and
wired
controller L (m)
Wire size
(mm
2
)
Material
standard
Remarks
Light/Ordinary
Polyvinyl
chloride
sheathed
cord.
L≤250m
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.
(2) Selection of communication wire between unit and VRF ODU
Figure 3-3 Diagram of IDU and ODU control connection
Table 3-3 Selection of communication wire between unit and VRF ODU
Material Type
Total Length L (m) of
Communication Cable
between Indoor Unit
and Indoor (Outdoor)
Unit
Wire size
(mm
2
)
Material
Standard
Remarks
Light/Ordinary
polyvinyl
chloride
sheathed cord.
L≤1000m
≥2×0.75
IEC
60227-5:2007
1) If the wire diameter is
enlarged to 2×1 mm
2
, the
total communication line
length can reach 1500 m.
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.
Содержание GMV-VDR10PH/SA-S
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