65
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
WIRING
Table 21: TA Frame Wiring Diagram Legend.
Table 22: TA Frame DIP Switch Settings.
*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.
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
SW7
VENTILATOR
INTERLOCK
Off On
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)
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Terminal Purpose Function
CN_485 Communication Connection between indoor and outdoor units
CN_MOTOR Fan motor output Motor output of BLDC
CN_GRILL Elevation grille Elevation grille connection
CN_PTC Auxiliary heater Auxiliary heater connection
CN_CC Dry contact Dry Contact connection
CN_EEV EEV Output EEV control output
CN_EXT External on/off controller External on/off controller connection
CN_DUST PM 1.0 sensor PM 1.0 sensor connection
CN_FLOAT Float switch input Float switch sensing
CN_PIPE_IN Suction pipe sensor Pipe in thermistor
CN_PIPE_OUT Discharge pipe sensor Pipe out thermistor
CN_ROOM Room sensor Room air thermistor
CN_ROOM_HUMID N/A N/A
CN_LEAK Leak sensor Leak sensor connection
CN_WIFI Wi-Fi module Wi-Fi module connection
CN_THERMO Floor temperature sensor Floor temperature sensor connection
CN_VISION_BLDC2 Human detection sensor Human detection sensor connection
CN_DC_DRAIN Drain pump output AC output for drain pump
CN_REMO Wired remote controller Wired remote control connection
CN_OPTION Optional PCB EEPROM Option PCB connection
CN_DISPLAY Display Display of indoor status
CN_VANE1 Step motor Step motor output
CN_VANE2 Step motor Step motor output
CN_AIRC1 Air cleaner Air cleaner control
CN_POWER AC Power supply AC Power line
*If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat.
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