LG Multi V ARNU093TUD4 Engineering Manual page 16

ONE-WAY CEILING CASSETTE
Electrical Wiring Diagram
TU and TT Frames
Table 4: TU, TT Frame Wiring Diagram Legend.
Terminal
CN_MOTOR1
CN_WF
CN-PTC
CN_DUST
CN_FLOAT
CN_EEV
CN_DISPLAY
CN_OPTION
CN_ROOM
CN_PIPE_IN
CN_HUMID
CN_LEAK
CN_PIPE_OUT
CN_EXT
CN_REMO
CN_CC
CN_AIRC*
CN_VANE2
CN_VANE1
CN_DCDRAIN
CN_485
CN_COMM
CN_POWER
Table 5: TU, TT Frame DIP Switch Settings.
DIP Switch Setting
SW3 GROUP CONTROL
DRY CONTACT
SW4
MODE
*For Gen 4 Multi V one-way ceiling cassette indoor units, DIP switches 1, 2, 5 through 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.
16 | ONE-WAY
Purpose
Fan motor output
Wi-Fi module
Auxiliary heater
N/A
Float switch input
EEV output
Display
Option PCB (EEPROM)
Room sensor
Suction pipe sensor
N/A
Leak sensor
Discharge pipe sensor
External on/off controller
Remote controller
Dry Contact
Air cleaner*
Step Motor
Step Motor
Drain pump output
Communication
Communication
AC Power supply
Off On
Master Slave
Variable Auto
©
Function
Motor output of BLDC
Wi-Fi module connection
Auxiliary heater connection
Float switch sensing
EEV control output
Display of indoor status
Option PCB connection
Room air thermistor
Pipe in thermistor
Leak sensor connection
Pipe out thermistor
External on/off cotnroller connection
Remote control connection
Connection to Dry Contact (Optional)
Air cleaner control*
Step motor output
Step motor output
AC output for drain pump
Connection between indoor and outdoor units
Connection on Sub PCB between indoor and outdoor units
AC power line input for indoor controller
Remarks
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
N/A
N/A