Gree NCHS8D - Page 12

GMV6 HR Mode Exchange Box
8
Communication Wire between Mode Exchange Box and indoor unit, outdoor unit:
Fig.3.3.1
Type of wire
Total length of communication
wire between Mode Exchange
Box and another
indoor/outdoor unit L(m)
Wire
diameter
(mm
2
)
Material
standard
Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord
(60227 IEC
52/60227 IEC 53)
L≤1000 ≥2×0.75
IEC
60227-5:2007
1. If the wire diameter is enlarged to
2×1mm
2
, the total communication
length
can reach 1500m.
2. The cord shall be circular cord (the
cores shall be twisted together).
Communication wire can be longer if
wire diameter is 2×1mm
2
. But the total
length cannot exceed 1500m.
3. If unit is installed in places with
intense magnetic field or strong
interference, it’s necessary to use
shielded wire.