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Discharge Air Temperature Controller - LG PAHCMS000 Installation Manual

Air handler unit communications kit
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AHU COMMUNICATIONS KIT INSTALLATION
Case 1: One AHU with One ODU / Standalone or DDC by Modbus
ODU communication line
Module communication line
Outdoor
Unit
00
Modbus
communication
line
LG
centralized
controller
2)
or
DDC
L N
(Modbus)
Discharge air temp. controller
Note:
1. Remote controllershouldbeconnected toPAHCMS000.
monitor status.
2. LG Central controller addressing for discharge air temp. controller should be set to the same address as the main module's
address.
3. Address of Comm. module of PAHCMS000 (Central control address) must be set to '00'. The address for additional
PAHCMR000 must be set with an order increasing by 1. Also ODU address must be the same as the paired AHU controller.
4. All PAHCMR000 units need to be set as Master mode.
Discharge ai r
sensor
Pipe in & out
sensor
Communication
Main
module
Module
Master
001
02:00
Remote
Controller
1)
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.

Discharge Air Temperature Controller

IDU communication line
Pipe in & out
sensor
RA temp.
RA temp.
controller
controller
Master
Master
02:01
02:02
Remote controller connected to PAHCMR000 can only
Pipe in & out
Pipe in & out
sensor
sensor
RA temp.
controller
Master
02:03
Power line
37

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