Lennox VEMD007N432U Installation Manual page 11

Multi Variable Air Conditioners Duct Type Indoor Unit
communication line
Material type between indoor unit
and wired controller L
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
4.3.2 Select Communication Line for Indoor Unit and Outdoor Unit
Total Length L (m/feet)
of Communication
Material Type Cable between Indoor
Unit and Indoor
Light/Ordinary
polyvinyl chloride
sheathed cord.
(L≤3280-5/6feet)
(60227 IEC 52
/60227 IEC 53)
Total length of
(mm
(m/feet)
2×0.75~2×1.25
L≤250m
(2×AWG18
(L≤820-1/5feet)
~2×AWG16)
Wire size
(mm
(Outdoor) Unit
L≤1000m ≥2×0.75
(≥2×AWG18)
Wire size Material
/AWG) Standard
2
IEC
60227-5:2007
Fig4.3.2
Material
/AWG) Standard
2
IEC
60227-5:2007
7
Remarks
(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.
Remarks
(1) If the wire diameter is enlarged
to 2×1 mm (2×AWG16), the
2
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.