LG MULTI V ARNU073TUD4 Installation Manual page 63

Table 19: TN and TM Frame Wiring Diagram Legend.
Terminal
CN-MOTOR1
CN-D_PUMP
CN-GRILL
CN-PTC
CN-FLOAT
CN-EEV
CN-DUST
CN-DISPLAY
CN-OPTION
CN-WF
CN-ROOM
CN-PIPE_IN
CN_LEAK
CN-PIPE_OUT
CN-EXT
CN-HUMID
CN-CC
CN-AIRC
CN-VANE2
CN-VANE1
CN-485
CN-COM
CN-REMO
CN-POWER
Table 20: TN and TM Frame DIP Switch Settings.
DIP Switch Setting
SW3 GROUP CONTROL
DRY CONTACT
SW4
MODE
VENTILATOR
SW7
INTERLOCK
*For Gen 4 Multi V four-way ceiling cassette indoor units, DIP switches 1, 2, 5, 6, and 8 must be set to OFF. These DIP switch-
es are used for other models.
**To enable Generation 4 features, outdoor unit DIP switch no. 3 must be set to ON. Please refer to the Multi V 5, Multi V IV,
Multi V Water IV, Multi V S Engineering Manual for additional information.
Purpose
Fan motor output
Drain pump output
Elevation grille
Auxiliary heater
Float switch input
EEV Output
N/A
Display
Optional PCB EEPROM
Wi-Fi module
Room sensor
Suction pipe sensor
Leak sensor
Discharge pipe sensor
External on/off controller
N/A
Dry contact
Air cleaner
Step motor
Step motor
Communication
Communication
Wired remote controller
AC Power supply
Off On
Master Slave
Variable Auto
Off On
Due to our policy of continuous product innovation, some specifications may change without notification.
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External on/off controller connection
Connection between indoor and outdoor units
Connection on Sub PCB between indoor and outdoor units
Wired remote control connection
Group control setting using 7-Day Programmable Controller; selects Master /
Slave on each indoor unit
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
Selects ventilator interlock function for four-way ceiling cassette indoor units.
1. On: Automatic (vent relay will be turned on after ten [10] seconds
of indoor unit operation
2. Off: Manual (ventilator needs to be set through the controller)
WIRING
Function
Motor output of BLDC
AC output for drain pump
Elevation grille connection
Auxiliary heater connection
Float switch sensing
EEV control output
N/A
Display of indoor status
Option PCB connection
Wi-Fi module connection
Room air thermistor
Pipe in thermistor
Leak sensor connection
Pipe out thermistor
N/A
Dry Contact connection
Air cleaner control
Step motor output
Step motor output
AC Power line
Remarks
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