LG PAHCMR000 - Page 22

22
PAHCMR000 AHU Communication Kit Installation Manual
Due to our policy of continuous product innovation, some specications may change without notication.
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Solutions Overview
AHU COMMUNICATIONS KIT INSTALLATION
Return Air Temperature Control
DDC Control by Contact Signal : Fixed T
e
+ T
r
or T
Room
The DDC controls return air temperature (T
r
) or room air temperature (T
Room
) by transferring AI / DI / DO signal to the
AHU Communication Kit for Return air control. A fixed target evaporator or condensing temperature (T
e
) can be
changed in MULTI V and Single outdoor function code setting. LG wired remote controller and LG Central Controller can be
optionally applied, but only monitoring function is possible.
1) Note : When DDC control AHU Controller by contact signal, the control commend of LG central
controller will be disregarded.
DX
Coil
AHU
Room
PAHCMR000
AHU Controller
Outdoor Unit
DDC
(Field Supply)
Remote
Controller
(Monitoring)
.
AI / DI / DO
Signal
LG Central
Controller
(Monitoring only)
T
T
r
e
T
Room
MULTI V Optional (Monitoring only)
Single Zone Not Required
Function List Contact Signal type (DDC) LG Central Controller
1
Control
XXOffO/nO gnitarepO
XXOedoM noitarepO
XXOerutarepmeT riA nruteR
XXXerutarepmeT riA egrahcsiD
XXOffO/nO lamrehT decroF
XXXlortnoC yticapaC
XXXpotS ycnegremE
Monitor
OOOffO/nO gnitarepO
OOXedoM noitarepO
OOXerutarepmeT riA nruteR
XXXerutarepmeT riA egrahcsiD
XOOsutats tsorfeD
OOOmralA rorrE
XOXffO/nO rosserpmoC
Note :
O : Applied, X : Not applied
1. LG Central controller is based on AC Smart IV and ACP IV
2. Refer to Universal Input – UI Setting #1 for more detail
Central ControllerWired Remote ControllerExpansion Valve
EEV
Optional (Monitoring only)
Optional (Monitoring only)
Optional (Monitoring only)
LG Remote Controller
Required Items
Function List