Lennox VRF VE8K007C432P Installation Manual page 11

3.3.1 Select Communication Line for Indoor Unit and Wired Controller
communication line
Material type
between indoor unit and
wired controller L (m/ft.)
Light/Ordinary
polyvinyl
chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
3.3.2 Selection of Communication Wire between Indoor Unit and Indoor Unit (or Outdoor
Unit)
Total Length L (m/ft.)
of Communication
Material Type Cable between
Indoor Unit and
Indoor (Outdoor)
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
Total length of
Wire size
(mm
2×0.75~2×1.25
L≤250
(2×AWG18
(L≤820)
~2×AWG16)
Wire size
(mm /AWG)
2
L≤1000 ≥2×0.75
(L≤3280) (≥2×AWG18)
Multi Variable Air Conditioners Cassette Type Indoor Unit
Fig.3.3.1
Material
/AWG) standard
2
1. Total length of communication line
2. The cord shall be Circular cord (The
IEC
60227-5 3. If unit is installed in places with
Fig.3.3.2
Material
standard
1. If the wire diameter is enlarged to 2×1 mm
(2×AWG16), the total communication line
length can reach 1500m (4920ft.).
2. The cord shall be Circular cord (The cores
IEC 60227-5
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.
5
Remarks
can't exceed 250m (820ft.).
cores shall be twisted together.).
intense magnetic field or strong
interference, it is necessary to use
shielded wire.
Remarks
2