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Signal Wiring Drawing
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Outdoor units are of parallel connection via three lines with polarity. The master unit, central control and all indoor
units are of parallel connection via two lines without polarity.
There are three connecting ways between wired controller and indoor units:
A. One line control controls multiple units, i.e. 8 indoor units, as shown in the above figure, (1-5 indoor units).The
indoor unit 5 is the line-controlled main unit and others are the ine-controlled sub units. The wired control and the
main unit (directly connected to the indoor unit of line control) are connected via three lines with polarity. Other
indoor units and the main unit are connected via three lines with polarity.SW01 on the main unit of line control is
set to 0 while SW01 on other sub units of line control are set to 1, 2, 3 and so onin turn.
B. One line control controls one indoor unit, as shown in the above figure(indoor unit 6-19). The indoor unitand the
line control are connected via three lines with polarity.
C. Two wired controller control one indoor unit, as shown in the figure (indoor unit 20). Either of the wired controller can be set to
be the master wired controller while the other is set to be the auxiliary wired controller. The master wired controller and indoor
units, and the master and auxiliary wired controller are connected via three lines with polarity.
When the indoor units are controlled by the remote control, switch over the modes by Switching Mode of
Line-Controlled Main Unit/ Line-Controlled Sub Units/ Remote-Controlled Types. The signal terminals needn't
to be equipped with wires and connected to the line control.
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Wired
Wired
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controller
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Wired
Wired
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controller
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Wired
controller
Wired
controller
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Wired
Wired
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controller
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