LG PAHCMR000 Installation Manual page 29

Communication Module _ Electric specification of port
n RS485 Communication port
Name Port
MULTI V IDU
RS485 CH2
Comm.
Single IDU
SINGLE N/SIG
Comm.
n NTC Thermistor
Name Port
Thermistor
NTC RI2/G
Discharge
Thermistor
NTC RI3/G
Pipe in
Thermistor
NTC RI4/G
Pipe out
n Remote Controller
Name Port
+12 V
REMO
SIG/GND
n EEV
Name Port
12 V
EEV
DC/1/2/3/4
NOTE
When a communication module (or PAHCMR000) is connected to the main module of PAHCMS000,
DO and UI in communication module are not used.
DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000)
Item
MULTI V Comm.
(IDU A/B)
Single split Comm.
(IDU A/B)
Item
Discharge air Thermistor
Pipe in (Liquid)
Thermistor
Pipe out (Gas)
Thermistor
Item Electrical Spec.
Wire Remote
Max 50 m
Controller
Item Electrical Spec.
EEV Control Max 5 m
Electrical Spec.
Max 1km,
Communication with MULTI
2
2C x (1.0~1.5) mm
V Outdoor unit
(shield wire)
Max 75 m,
Communication with Single
2
2C x (1.0~1.5) mm
Split Outdoor unit
(shield wire)
Electrical Spec.
Discharge Air temperature
NTC 10 kΩ, 5 m
sensor
Inlet pipe (Liquid) Temp.
NTC 5 kΩ, 5 m
sensor
Outlet pipe (Gas) Temp.
NTC 5 kΩ, 5 m
sensor
Communication with Wired Remote
Controller
EEV Control
29
Function
Function
Function
Function