Multi Variable Air Conditioners Duct Type Indoor Unit
7
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
≤250m
(L≤820
-1/5feet)
2×0.75~2×1.25
(2×AWG18
~2×AWG16)
IEC
60227-5:2007
(1) Total length of communication
line can't exceed 250m
(820-1/5feet).
(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.
4.3.2 Select Communication Line for Indoor Unit and Outdoor Unit
Fig4.3.2
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
≤1000m
(L≤3280
-5/6feet)
≥
2×0.75
(≥2×AWG18)
IEC
60227-5:2007
(1) If the wire diameter is enlarged
to 2×1 mm
2
(2×AWG16), the
total communication line
length can reach 1500 m
(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.
