Carrier XCT 7 40VC009F-7G-QEE Manual De Funcionamiento Manual De Instalación página 26

Electrical Wiring
Signal Wiring Drawing
Outdoor 1
communication wire between
indoor & outdoor without polarity
indoor 1 AC machine
indoor 6
indoor 11
indoor 16
Outdoor units are of parallel connection via three lines with polarity. The main unit, central control and all indoor units are of
parallel connection via two lines without polarity.
There are three connecting ways between line control and indoor units:
A. One wired controller controls multiple units, i.e. 2-16 indoor units, as shown in the above figure(1-5 indoor units).The
indoor unit 5 is the line-controlled master unit and others are the slave units. The remote controller and the master unit
(directly connected to the indoor unit of wired controller) are connected via three lines with polarity. Other indoor units
and master unit are connected via two lines or three lines with polarity (If the PCB of indoor is DC, the wired controller
needs to be connected to ABC, while the PCB of indoor is AC, the wired controller only connects to BC.). SW01 on
the mater unit of line control is set to 0 while SW01 on the slave units of line control are set to 1,2,3 and so on in turn.
(Please refer to the code setting page.)
B. One line control controls one indoor unit, as shown in the above figure (indoor unit 6-19). The indoor unit and the line
control are connected via three lines with polarity.
C. Two lines control one indoor unit, as shown in the figure (indoor unit 20). Either of the line controls can be set as the
master line control while the other can be set as the auxiliary line control. The master line control , the indoor units, and
the master and auxiliary line controls are connected via three lines with polarity.
When the indoor units are controlled by the remote control, one can switch over the modes by Switching
Mode of Line-Controlled Main Unit/ Line-Controlled Sub Units/ Remote-Controlled Types. The signal terminals need not be
equipped with wires and connected to the line control.
Outdoor 3
Outdoor 2
indoor 2 AC machine indoor 3 DC machine
indoor 7
wired wired
controller controller
indoor 12
wired
wired
controller
controller
indoor 18
indoor 17
wired
wired
controller
controller
communication wire with polarity
indoor 4 DC machine
indoor 8 indoor 9
wired
controller
indoor 13 indoor 14
wired
controller
indoor 19
wired
controller
19
control wire for wired controller
with polarity
indoor 5 (Master DC or AC)
wired
controller
indoor 10
wired
controller
indoor 15
wired
wired
controller
controller
indoor 20
wired
controller
wired controller wired controller
wired
controller