Carrier 40VL0058-7E-QEE Manual De Instalación Y Propietario página 27

Electrical Wiring
Signal wiring drawing
outdoor 1
P Q A B C
indoor 1
P Q A B C
indoor 6
P Q A B C
wired
controller
indoor 11
P Q A B C
A B C
wired
controller
indoor 16
P Q A B C
A B C
wired
controller
Outdoor units have parallel connections via three lines with polarity. The main unit, central control, and all indoor units
have parallel connections via two lines without polarity.
There are three connecting ways between the line control and indoor units:
A. One wired controller controls multiple units, that is, 2–16 indoor units, as shown in the above figure (indoor units
1–5). Indoor unit 5 is the main unit and others are the sub units. The wired controller and the main unit are
connected via three lines with polarity. Other indoor units and the main unit are connected via two lines with polarity.
SW01 on the main unit is set to 0 while SW01 on other sub units of line control are set to 1, 2, 3, and so on in turn
(please refer to the code setting on page 20).
B. One wired controller controls one indoor unit, as shown in the above figure (indoor units 6–19). The indoor unit and
the wired controller are connected via three lines with polarity.
C. Two wired controllers control one indoor unit, as shown in the figure (indoor unit 20). Either of the controllers can
be set to be the master controller while the other is set to be the auxiliary controller. The master wired controller and
indoor units, and the master and auxiliary wired controller are connected via three lines with polarity.
outdoor 2 outdoor 3
A B C
communication wire with polarity
indoor 2 indoor 3
P Q A B C P Q A B C
indoor 7 indoor 8
P Q A B C P Q A B C
A B C
wired
controller
indoor 12 indoor 13
P Q A B C P Q A B C
A B C
wired
controller
indoor 17 indoor 18
P Q A B C
P Q A B C
A B C
wired
controller
A B C
indoor 4
P Q A B C
indoor 9
P Q A B C
A B C
wired A B C
controller
indoor 14
P Q A B C
A B C
A B C
wired
controller
indoor 19
P Q A B C
A B C wired
A B C
controller
20
control wire for wired controller
with polarity
indoor 5
P Q A B C
A B C
wired
controller
indoor 10
P Q A B C
wired
controller
A B C
indoor 15
P Q A B C
wired
controller A B C
wired
controller
indoor 20
P Q A B C
wired
A B C
controller A B C
wired wired
wired
controller controller
controller
wired
controller