Lennox VRF VEWCL1B

11
5.1 INSTALLATION OF WIRED CONTROLLER
5.1.1 Communication Line Selection
Fig. 5.2 Length of communication line
Wire material
type
Total length of
communication line
between indoor unit
and wired controller
L (m/feet)
Wire size
(mm
2
/AW
G)
Material
standard
Remarks
Light/Ordinary
Polyvinyl
chloride
sheathed
cord.
(60227 IEC 52
/60227 IEC
53)
L
≤
250m
(L≤820-1/5feet)
2×0.75
mm
2
~2×
1.25 mm
2
(2×AWG1
8~2×AWG
16)
IEC
60227-5:2
007
(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.
Note:
① If the air conditioner is installed at the strong electromagnetic interference
place, communication line of the wired controller must use shielding
twisted pair.
Wired Controller VEWCL1B