Communication Module - LG PAHCMS000 Installation Manual

AHU COMMUNICATIONS KIT INSTALLATION
RS485 Communication Port
Name Port
MULTI V IDU
RS485 CH2
Comm.
Single IDU
SINGLE N/SIG
Comm.
NTC Thermistor
Name Port
Thermistor
NTC RI2/G
Discharge
ThermistorPipein NTC RI3/G
Thermistor Pipe
NTC RI4/G
out
Remote Controller
Name Port
REMO +12V/SIG/GND
Electronic Expansion Valve
Name Port
EEV 12 VDC/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.
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 164 ft
Controller
Item Electrical Spec.
EEV Control Max 32.8 ft
Due to our policy of continuous product innovation, some specifications may change without notification.
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Communication Module

Electrical Spec.
Max 3280 ft,
Communication with MULTI V
2C x 18~16 AWG
Outdoor unit
(shield wire)
Max 246 ft,
Communication with Single Split
2C x 18~16 AWG
Outdoor unit
(shield wire)
Electrical Spec.
NTC 10 kΩ, 16.4 ft Discharge Air temperature sensor
NTC 5 kΩ, 16.4 ft Inlet pipe (Liquid) Temp. sensor
NTC 5 kΩ, 16.4 ft Outlet pipe (Gas) Temp. sensor
Communication with Wired Remote Controller
EEV Control
Function
Function
Function
Function
31