Carrier 40VK005S-7S-QEE Manual De Instalación Y Propietario página 23

Installation Procedures
Signal Wiring Drawing
outdoor 1
outdoor 1
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.
The wiring for the power line of the indoor unit, the wiring between indoor and outdoor units, and the wiring between
indoor units:
Items Cross
Section
Total (mm
Current of
Indoor Units(A)
<6 2.5
≥6 and <10 4
≥10 and <16 6
≥16 and <25 8
≥25 and <32 10
The electrical power line and signal lines must be fastened tightly.
Every indoor unit must have a ground connection.
The power line should be enlarged if it exceeds the permissible length.
Shielded lays of all the indoor and outdoor units should be connected together, with the shielded lay at the side of
the signal lines of the outdoor units grounded at one point.
The whole length of the signal line should not exceed 1000m.
outdoor 2
outdoor 2
Length Rated
(m) Current of
) Overflow
2
Breaker(A)
20 10
20 16
25 20
30 32
40 32
outdoor 3
Communication wire with polarity
outdoor 3 outdoor 4
Rated Current of Residual
Circuit Breaker(A) Ground
Fault Interrupter(mA)
Response time(S)
10 A,30 mA,0.1S or below
16 A,30 mA,0.1S or below
20 A,30 mA,0.1S or below
32 A,30 mA,0.1S or below
32 A,30 mA,0.1S or below
16
outdoor 5
Cross Sectional
Area of Signal Line
Outdoor -indoor Indoor-indoor
(mm ) (mm
2
2 cores×0.75-2.0mm
2
shielded line
)
2