LG MULTI V ARNU243TTD4 - Page 42

42 | TWO-WAY
MULTI V Ceiling Cassette Indoor Unit Engineering Manual
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Electrical Wiring Diagram
TS Frame
Table 17: TS Frame Wiring Diagram Legend.
TWO-WAY CEILING CASSETTE
Table 18: TS Frame DIP Switch Settings.
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
*For Gen 4 Multi V two-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.
Terminal Purpose Function
CN-MOTOR1
Fan motor output Motor output of BLDC
CN-EEV
EEV Output EEV Control output
CN-CC
Dry Contact Dry Contact
CN-OPTION
Option PCB (EEPROM) Option PCB connection
CN-ROOM
Room sensor Room air thermistor
CN-PIPE_IN
Suction pipe sensor Pipe in thermistor
CN-HUMID
N/A N/A
CN-PIPE_OUT
Discharge pipe sensor Pipe out thermistor
CN-LEAK
Leak sensor Leak sensor connection
CN_EXT
External on/off controller External on/off controller connection
CN-FLOAT
Float switch input Float switch sensing
CN_WF
Wi-Fi module Wi-Fi module connection
CN_DCDRAIN
Drain pump output AC output for drain pump
CN-AIRC
N/A N/A
CN-PTC
Auxiliary heater Auxiliary heater connection
CN-DISPLAY
Display Display of indoor status
CN-VANE1
Step Motor Step motor output
CN-485
Communication Connection between indoor and outdoor units
CN-COM
Communication Connection on Sub PCB between indoor and outdoor units
CN-REMO
Remote controller Remote control line
CN-POWER
AC Power supply AC Power line input for indoor controller