LG Multi V ARNU093TUD4 Engineering Manual page 70

FOUR-WAY CEILING CASSETTE
Electrical Wiring Diagram
TP, TN, and TM Frames
Table 34: TP, 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 35: TP, TNC, and TMC 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.
70 | FOUR-WAY
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
©
AC output for drain pump
Elevation grille connection
Auxiliary heater connection
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)
Function
Motor output of BLDC
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