16
Communication wiring figure
P Q A B C
A B C
A B C
indoor 3
P Q A B C
indoor 4
P Q A B C
indoor 5
P Q A B C
indoor 6
P Q A B C
A B C
A B C
A B C
outdoor
P Q
indoor 1
P Q A B C
indoor 2
A B
C
communication wire with polarity
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
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 2: indoor 2 is wired control master unit, the others are wired control slave units.
Wired controller and the master indoor (directly connected to wired controller) is connected by 3
polar wires; the other indoors and the master indoors are connected by 2 polar wires.
B. 1 to 1 (one wired controller controls one indoor): as shown in above figure, indoor 3~ indoor
4, indoor and wired controller are connected by 3 polar wires.
C. 2 to 1 (two wired controller controls one indoor): as shown in above figure, indoor 6. Either of
wired controllers can be set as master wired controller, and the other is slave wired controller.
Master/slave wired controller, and master/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 need not wires and not connect
the wired controller.
Internal wiring diagram for power cable installation
Note: The power wire cannot touch any refrigerant pipe.
Electric wiring and the application
