LG PAHCMR000 - Page 31

31
Installation
Due to our policy of continuous product innovation, some specications may change without notication.
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External Connection Diagrams
AHU COMMUNICATIONS KIT INSTALLATION
Return Air Temperature Control
Multi V and EEV Kit and LG Control/DDC (Modbus Signal)
L N
DX
Coil
Pipe in (Liquid) Thermistor
Pipe out (Gas) Thermistor
Return (Room) Thermistor
Comm. module
CH 2 A+
CH 2 B-
4(B)
3(A)
B
)
GND
12V
SIG
RI1
G
RI3
G
RI4
G
EEV
N(L2)
L(L1)
N(L2)
L(L1)
4(B)
3(A)
MULTI V
IDU A
IDU B
R S T N
1
Fuse
INT A
INT B
ACP : CH 1 ~ CH 4
AC SMART : CH 2
RSTN
CN_REMO
CN_REMO
Adapter
L
N
B- CH1
A+ CH1
Liquid pipe
Central Controller
Outdoor unit
Power Supply
Power Supply
Indoor unit
Indoor unit
Fan control
Remote
Controller
Modbus
Communication
EEV Kit
Gas pipe
Refrigerant Piping (Field Supply)
Wire & Thermistor (LG Supply)
AI/DI/DO Signal(Field Supply)
Wire (Field Supply)
Air Handling Unit
(field supply)
Local AHU
Controller
(Field Supplied)
Notes:
1. The type of power supply of outdoor unit can vary depending on the outdoor model.
2. Please make wiring between LG controller and outdoor unit with the same polarity.
3. LG controller can be optionally applied with DDC.
Compatible EEV Kit models are PRLK048A0 / PRLK096A0 / PRLK396A0
PRLK594A0 is not compatible