LG ARUM080LTE5, Engineering Product Data Book

Page: 785 / 797

Multi V 5
2. Control System List
15
Control System
Outline of system
Return
Air
Tempera-
ture
Control
•
DDC Control by Modbus : Fixed T
e
+ T
r
or T
Room
The DDC controls return air temperature (Tr) or room air temperature (TRoom) by transferring Modbus signal to the AHU
Communication Kit for Return air control.
To control room air, the LG wired controller can be purchased optionally.
A fixed target evaporator or condensing temperature (T
e
) can be changed in MULTI V and Single outdoor setting.
Discharge
Air
Tempera-
ture
Control
•
LG Control : Variable T
e
+ T
d
The Communication Kit for Discharge Air Temperature Control is single-handed able to cover this function.
The Communication Kit adjusts the evaporating or condensing temperature (Te) by monitoring the supplied air temperature (T
d
)
in order to meet the required set target (T
d
).
• If you need more detail, please refer to the Control PDB or the manual of product.
(http://partner.lge.com/global : Home> Doc.Library> Product > Control(BECON))
DX
Coil
AHU
Room
AHU Controller
PAHCMR000
Outdoor Unit
DDC
(Field Supply)
Remote
Controller
(optional)
T
Room
.
LG Central
Controller
(Optional)
Modbus
T
e
T
r
DX
Coil
AHU
Room
AHU Controller
PAHCMS000
Outdoor Unit
LG Central
Controller
by Modbus
Remote
Controller
T
e
T
d