Note:
The method A needs to set the PCB function switch. The method C needs to set the controller function switch.
Wired Controller
Installation Procedure
21
Communication wiring
The wired controller is equipped with special communication wiring in the accessories. 3-core terminal (1-white 2-yellow
3-red) is connected with the terminal A, B, C of wired controller respectively.
The communication wiring is 4 meter long. If the actual length is more than it, please distribute wiring according to below
table:
Wiring connections of wired controller
There are three methods to
connect
wired controller and the indoor units:
A.One wired controller can control max. up to 16 sets of indoor units.
In this case, 3 pieces of polar wire must connect
the wired controller and the master unit (the indoor unit connected with wired controller directly), the others connect with
the master unit through 2 pieces of polar wire.
B. One wired controller controls one indoor unit.
The indoor unit connects with the wired controller through 3 pieces
of polar wire.
C. Two wired controllers control one indoor unit.
The wired controller connected with indoor unit is called master one,
the other is called slave one. Master wired controller and indoor unit; master and slave wired controllers are all connected
through 3 pieces of polar wire.
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
Indoor 16
Indoor 15
Indoor N
Indoor 2
Indoor 1
Wired controller
Wired controller
Wired controller
Wired controller
Wired controller
(master unit)
A B C
Wired controller
Control wiring of wired
controller, polar.
1 2 3
Indoor 1
Wired controller
A B C
Wired controller
Poler wire
1 2 3
Indoor 1
Wired controller
A B C
Wired controller
Poler wire
A B C
Wired controller
Poler wire
A
B
C
*One side of the shielded sheet of communication wire must be earthed.
Communication wiring length(m) Dimensions of wiring
< 100 0.3mm
2
x 3-core shielded wire
100 and <200 0.5mm
2
x 3-core shielded wire
200 and <300 0.75mm
2
x 3-core shielded wire
300 and <400 1.25mm
2
x 3-core shielded wire
400 and <600 2mm
2
x 3-core shielded wire
