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GMV5 HR HEAT RECOVERY
VRF Units Technical Sales Guide
11.1 Connection Mode of Connection Line Terminals
All the communication connections of GMV5 HR are in the screw fastening mode.
wiring screw
terminal board
11.2 Communication Cable Material and Wring Mode
11.2.1
Communication Material
Selection of communication wire between outdoor unit and mode exchanger, among mode exchanger,
and mode exchanger and indoor unit respectively.
Material Type
Total Length L(m) of
Communication Cable
between IDU Unit and IDU
(ODU ) Unit m(feet)
Wire size Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
L
≤
1000(3280-5/6)
≥
2×AWG18
1. If the wire diameter is enlarged to 2 ×AWG16, the total
communication length can reach 1500m(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 eld or
strong interference, it is necessary to use shielded wire.
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