Haier AD182AMERA Service Manual page 55

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）
<100
≥100 and <200
≥200 and <300
≥300 and <400
≥400 and <600
※ One side of the shielded sheet of communication wire must be earthed.
Commercial Air Conditioner
AD182AMERA, AS182AVERA
Dimensions of wiring
2
0.3mm X3-core shielded wire
2
0.5mm X3-core shielded wire
2
0.75mm X3-core shielded wire
2
1.25mm X3-core shielded wire
2
2mm X3-core shielded wire
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Model: AU182AFERA