AUX ANB78FVAMT - 6.3 Communication Line Connection; 1. Preparatory work

AUX-DC inverter ARV outdoor unit individual series technical manual
113
6.3 Communication Line Connection
Communication for
indoor unit(other system)
Controller
Adapter
Centralized
Controller
Adapter
Power Connection
A
B
12V
GND
Outdoor Unit1
A
B
12V
GND
Outdoor Unit2
A
B
12V
GND
Outsoor Unit3
A
B
12V
GND
Outdoor Unit4
A
B
To wired
Signal of outdoor
Signal of
indoor
A
B
A
B
A
B
Indoor unit1
Indoor unit2
12VGND
AO
BO
AO BO
A
B
A B
L
N
2
1
3
ON
4
-
+
Centralized
Centralized
Power Connection
220V 50/60HZ
G A B
12VGND
AO
BO
AO BO
A
B
A B
L
N
2
1
3
ON
4
-
+
220V 50/60HZ
G A B
Communication for
Explanation:
\\means 2 cores communication cable Red:+12V
\\\\means 4 cores communication cable Green:A
Dashed line can connect or not Yellow:B
\\\means 3 cores commuication cable Blcak:GND
Controller
To wired
Controller
To wired
Controller
To wired
Controller
Indoor unit3
Indoor unit4
Controller
Weekly
G A B
Timer
indoor unit
Centralized
Controller2