Lennox VE2C009N432U, Installation Manual, Page: 12 / 32

Multi Variable Air Conditioners Two-way Cassette Type Indoor Unit
7
Wire type
Total length of
communication wire
between indoor unit and
wired controller (m)
Wire diameter
(mm
2
)
Wire standard Remark
Light/Ordinary
polyvinyl chloride
sheathed
cord(60227 IEC 52
/60227 IEC 53).
L≤250 2×0.75~2×1.25
IEC
60227-5:2007
Total length of communication
cable can't exceed 250m.
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.
3.3.2 Selection of Communication Wire Between Indoor Unit and Indoor Unit (or
outdoor unit)
Fig 3.3.2
Wire type
Total length of
communication wire
between indoor unit and
indoor unit(outdoor unit)
(m)
Wire diameter
(mm
2
)
Wire standard Remark
Light/Ordinary
polyvinyl chloride
sheathed cord
(60227 IEC 52
/60227 IEC 53)
(60227 IEC 52
/60227 IEC 53).
L≤1000 ≥2×0.75
IIEC
60227-5:2007
If the wire diameter is enlarged
to 2 × 1 mm
2
, the total
communication cable length
can reach 1500m.
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.
3.4 Wiring Requirements
Dimension of power cord and capacity of air switch.
NOTE:
①
The circuit breaker and power cord specification in above sheet are based on max power
(max current) of the unit.
②
The power cord specification in above sheet is based on ambient temperature of 40°C.