B. One wired controller controls one indoor unit, and 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.
3. 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:
Communication wiring length（m） Dimensions of wiring
<100 0.3mm
2
X3-core shielded wire
≥100 and <200 0.5mm
2
X3-core shielded wire
≥200 and <300 0.75mm
2
X3-core shielded wire
≥300 and <400 1.25mm
2
X3-core shielded wire
≥400 and <600 2mm
2
X3-core shielded wire
※ One side of the shielded sheet of communication wire must be earthed.
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