LG PAHCMR000 Installation Manual page 23

AHU COMMUNICATIONS KIT INSTALLATION
Return Air Temperature Control
DDC Control by Modbus : Fixed T
Room
T
r
AHU
The DDC controls return air temperature (T
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
Required Items
MULTI V
Single Zone
Function List
O p r e
O p r e
R e u t n r
Control D s i h c
o F c r d e
C p a c a
E m e g r
O p r e
O p r e
R e u t n r
Monitor D s i h c
D r f e s o
E o r r A r
C o m p
Notes
O = Applied; X = Not applied
1. LG Central controller is based on AC Smart IV and ACP IV
+ T or T
e r Room
.
T
Room
Remote
Controller
(optional)
DX
Coil
T
e
) or room air temperature (T
r
) can be changed in MULTI V and Single Zone outdoor function code setting.
e
Expansion Valve
E E V
N o R t q e r i u d e
Function List Modbus Comm. type (DDC)
i t a g n O n O / f f
i t a n o M o e d
r i A e T m e p a r u t e r
r a e g r i A e T m e p a r u t e r
T e h m r a O l n O / f f
y t i C o t n l o r
n e y c t S p o
i t a g n O n O / f f
i t a n o M o e d
r i A e T m e p a r u t e r
r a e g r i A e T m e p a r u t e r
s t t a t s u
a l m r
e r s s r o O n O / f f
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.
DDC
(Field Supply)
Modbus
AHU Controller
PAHCMR000
) by transferring Modbus signal to the AHU
Room
Wired Remote Controller
O i t p n o l a
O i t p n o l a
LG Remote Controller
O O
O O
O O
X X
X X
X X
X X
O O
O O
O O
X X
O O
O O
O O
Solutions Overview
LG Central
Controller
(Optional)
Outdoor Unit
Central Controller
O i t p n o l a
O i t p n o l a
1
LG Central Controller
O
O
O
X
X
X
O
O
O
O
X
X
O
X
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