LG PAHCMS000 Installation Manual page 26

AHU COMMUNICATIONS KIT INSTALLATION
Solutions Overview
Discharge Air Temperature Control
DDC Control by Modbus: Variable T
Room
AHU
The DDC controls discharge air temperature (T
The AHU Communications Kit adjusts the outdoor unit target temperatures (T
the discharge air temperatures.
Required Items
MULTI V
Single Split
Function List
Operating On/Off
Operation Mode
Return Air Temperature
Control Discharge Air Temperature
Forced Thermal On/Off
Capacity Control
Emergency Stop
Operating On/Off
Operation Mode
Return Air Temperature
Monitor
Discharge Air Temperature
Defrost status
Error Alarm
Compressor On/Off
Note :
O : Applied, X : Not applied
1. LG Central controller is based on AC Smart IV and ACP IV
26
+ T
e d
.
T
Room
Remote
Controller
(optional)
T
d
DX
Coil
T
e
) by sending modbus signals to the AHU Communications Kit.
d
Expansion Valve
EEV
Not Required
Function List Modbus Comm. type (DDC)
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.
DDCbyModbus
(Field Supply)
AHU Controller
PAHCMS000
), increasing or decreasing
e
Wired Remote Controller
Optional
Optional
LG Remote Controller LGCentralController
O O
O O
X X
O O
X X
O X
X X
O O
O O
O X
O X
O O
O O
O O
LG Central
Controller
(Optional)
Outdoor Unit
Central Controller
Optional
Optional
O
O
X
O
X
X
O
O
O
O
O
X
O
X
1