34
Communication wiring figure
Outdoor units are in parallel through 3 polar wires. The outdoor and all indoor units are in
parallel through 2 non-polar wires.
Three wiring methods between wired controller and indoor unit:
A.1 to multi (group control): one wired controller controls 2~16 indoors, as shown in above figure,
indoor 1~indoor 5: indoor 5 is wired control master unit, the others are wired control slave units.
Wired controller and the master indoor (directly connected to wired controller) are connected by
3 polar wires; the other indoors and the master indoor are connected by 2 polar wires.
B. 1 to 1 (one wired controller controls one indoor): as shown in above figure, indoor 6~ indoor
19, indoor and wired controllers are connected by 3 polar wires.
C. 2 to 1 (two wired controllers control one indoor): as shown in above figure, indoor 20. Either
of wired controllers can be set as master wired controller, and the other is slave wired
controller. Master/slave wired controller, and master wired controller/indoor are connected by
3 polar wires.
When indoor is controlled by remote controller, refer to the "wired control master unit/wired
control slave unit/remote control unit table". A, B, C on signal terminal block do not need wires
or connecting with the wired controller.
Electric wiring and the application
Communication wire with polarity
Wired
controller
Connection flow switch terminals
Connection water pump terminals
