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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. 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 1
indoor 1 (AC)
indoor 6
indoor 11
indoor 16
indoor 7
indoor 12
indoor 17
indoor 8
indoor 13
indoor 18
indoor 9
indoor 14
indoor 19
indoor 10
indoor 15
indoor 20
indoor 2 (AC)
indoor 3 (DC)
indoor 4 (DC)
indoor 5
outdoor 2
outdoor 3
communication wire with polarity
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
control wire for wired controller
with polarity
Supply Wiring Drawing
Electrical Wiring
17
Summary of Contents for XCT 7 40VD005-054S-7S -QEE
Page 8: ...Parts and Function 1 indoor unit air outlet port air inlet port air duct soft connection...
Page 31: ...The manufacturer reserves the right to change any product specifications without notice...
Page 58: ...Il produttore si riserva il diritto di modificare le specifiche del prodotto senza preavviso...
Page 62: ...Pi ces et fonctions Unit int rieure Sortie d air Entr e d air Gaine d air Raccord souple 1...
Page 85: ...Le fabricant se r serve le droit de modifier les sp cifications du produit sans pr avis...
Page 112: ...Der Hersteller beh lt sich das Recht vor Produktspezifikationen ohne Vorank ndigung zu ndern...