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I External Wiring Diagram; Multi-V Cru(N)N - LG PC Central Controller Installation Manual

Pc central controller
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External Wiring Diagram
External Wiring Diagram
Multi V CRU(N)N
- Refer the wiring diagram and connect the communication line accordingly
MAIN PCB
C C
D
D
VCC VCC
GND GND
PI485
A A
B B
Outdoor unit 0
MAIN PCB
C C
D
D
VCC VCC
GND GND
PI485
A A
B B
Outdoor unit 1
MAIN PCB
C C
D
D
VCC VCC
GND GND
PI485
A A
B B
Outdoor unit 16
A, B terminals are for connecting to Indoor units, and C, D terminals are for connecting to
CNU.
* Notice : Indoor unit address setting can be done by rotary switch in the Indoor unit PCB
4 PC Central Controller
Indoor units
00
01
02
10
11
12
F0
F1
F2
0F
1F
FF
Cross
Cable
BUS A
BUS B
LAN Port
CNU
(PQNFG00A0)
PC Central Controller

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