Multi VRF Floor Standing Indoor Unit
5
3.2.1 Select communication line for indoor unit and wired controller
Fig 3.2.1
Material type
Total length of
communication line
between indoor unit
and wired controller
L (m/feet)
Wire size (mm
2
/AWG)
Material
standard
Remarks
Light/Ordinary
polyvinyl
chloride
sheathed
cord.
(60227 IEC
52
/60227 IEC
53)
L≤250
(L
≤
820-1/5feet)
2×0.75~2×1.25
(2×AWG18~2×AWG16)
IEC
60227-5:2007
Total length of communication
line can't exceed 250m.
(820-1/5feet).
The cord shall be Circular cord (the
cores shall be twisted
together).
If unit is installed in places
with intense magnetic field or
strong interference, it is
necessary to use shielded wire.
3.2.2 Select communication line for indoor unit and indoor unit (outdoor unit)
Fig 3.2.2
Material Type
Total Length L (m/feet)
of Communication
Cable between Indoor
Unit and Indoor
(Outdoor) Unit
Wire size
(mm
2
/AWG)
Material
Standard
Remarks
Light/Ordinary
polyvinyl
chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤1000
(L
≤
3280-5/6feet)
≥2×0.75
(
≥
2×AWG18)
IEC
60227-5:2007
1
）
If the wire diameter is enlarged to
2 ×1mm
²
(2×AWG16),the total
communication line length can
reach 1500m(4921-1/4feet).
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.
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