34 | CEILING SUSPENDED
MUL
TI V Floor
, Suspended, Convertible Indoor Unit Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Table 18: Ceiling Suspended Indoor Unit Wiring Diagram Legend.
Table 19: Ceiling Suspended Indoor Unit DIP Switch Settings.
Terminal
Purpose
Function
CN-POWER
AC Power supply
AC Power line
CN-MOTOR1
Fan motor output
Motor output of BLDC
CN-MOTOR2
Fan motor output
Motor output of BLDC
CN-FLOAT
Float switch input
Float switch sensing
CN-VANE1
Step motor
Step motor output
CN-VANE2
Step motor
Step motor output
CN-EEV
EEV Output
EEV control output
CN-DOOR
Door lock switch
Door lock switch line
CN-OPTION
Optional PCB EPROM
Option PCB connection
CN-DISPLAY
Display
Display of indoor status
CN-CC
Dry contact
Dry Contact connection
CN-REMO
Wired remote controller
Wired remote control connection
CN-ROOM
Room sensor
Room air thermistor
CN-PIPE/OUT
Discharge pipe sensor
Pipe out thermistor
CN-PIPE/IN
Suction pipe sensor
Pipe in thermistor
CN-COM
Communication
Communication between indoor and outdoor
CEILING SUSPENDED
Electrical Wiring Diagram
*For Gen 4 Multi V ceiling suspended indoor units, DIP switches 1, 2, 5 through 8 must be set to OFF. These DIP switches are
used for other models.
DIP Switch Setting
Off
On
Remarks
SW3
GROUP CONTROL
Master
Slave
Group control setting using 7-Day Programmable Controller; selects Master /
Slave on each indoor unit
SW4
DRY CONTACT
MODE
Variable
Auto
Sets operation mode for optional Dry Contact accessory
1. Variable: Auto or Manual Mode can be set through 7-Day Programmable
Controller or Wireless Remote Controller (factory default setting is Auto if
there is no setting)
2. Auto: For Dry Contact, it is always Auto mode