Selection Requirement For Communication Wire - Gree NCHS2D Owner's Manual

GMV6 HR Mode Exchange Box
NOTES!
① The installation of the unit must comply with national and local safety regulations.
② Users can't install the unit by themselves, because the installation quality will affect the
operation directly. After purchasing the unit, please contact with dealer. The unit must be
installed and debugged by professional installer.
③ The unit can be put through power only after all installation work is finished.

3.3 Selection Requirement for Communication Wire

NOTE!
If the unit is installed at the place where there's strong electromagnetic interference, the
communication wire between indoor unit and wired controller must adopt shield wire, and the
communication wire between indoor unit and indoor unit (outdoor unit) must adopt twisted wire with
shielding function.
Communication Wire between Mode Exchange Box and indoor unit, outdoor unit:
Fig.3.3.1
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