LG PAHCMR000 - Page 33

33
Installation
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External Connection Diagrams
AHU COMMUNICATIONS KIT INSTALLATION
Multiple Modules Installation
One Air Handling Unit
. . .
Outdoor
Unit
IDU communication line
L N
Power line
Return air
sensor
Pipe in & out
sensor
Pipe in & out
sensor
Pipe in & out
sensor
Remote
Controller
DDC
Contact or modbus signal line
LG
Central
Controller
ODU
communication
line
RA temp.
controller
<Master>
02:XX
RA temp.
controller
<Slave>
02:XX
RA temp.
controller
<Slave>
02:XX
Notes:
1. Central control address ’02:XX’ can be set to any number in the range 00 ~ FF
. . .
Outdoor
Unit
IDU communication line
L N
Power line
Return air
sensor
Pipe in & out
sensor
Pipe in & out
sensor
DDC
Remote
Controller
Remote
Controller
Remote
Controller
Pipe
in & out
sensor
Contact or modbus signal line
LG
centralized
controller
ODU
communication
line
Return air
sensor
Return air
sensor
RA temp.
controller
<Master>
02:XX
RA temp.
controller
<Master>
02:XX
RA temp.
controller
<Master>
02:XX
Notes:
1. Central control address ’02:XX’ can be set to any number in the range 00 ~ FF.
Multiple Air Handling Units