LG ARNU073TUC4 Instruction Manual page 42

WIRING
2-Way TL Chassis
CONNECTOR NUMBER
CN-POWER
CN-MOTOR1
CN-D/PUMP
CN-485
CN-DISP
CN-EEV
CN-VANE1/VANE2
CN-FLOAT
CN-PIPE/IN
CN-PIPE/OUT
CN-ROOM
CN-REMO
CN-CC
CN-AIRC
For Multi V systems, DIP switches 1, 2, 6, and 7 must be set to OFF. These switches are used for other models.
Note:
• Switch 8 MUST be set to ON (Gen 4) for a Generation 4 indoor unit to function with Generation 4 features
• Generation 4 features also require Generation 4 outdoor units
Switch Function
3 Group Control
4 Dry Contact
Ceiling Cassettes:
5
No Function
Communications
8
Data Rate
42
Table 8: TL Chassis Wiring Diagram Connectors
LOCATION POINT
AC Power supply
Fan motor output
Drain pump output
Communication
Display
EEV Output
Step motor
Float switch input
Suction pipe sensor
Discharge pipe sensor
Room sensor
Remote controller
Dry Contact
Air Clean
Table 9: TL Chassis DIP Switch Settings
OFF ON
Master Slave
Variable Auto
N/A N/A
Generation 2 Generation 4
Due to our policy of continuous product innovation, some specifications may change without notification.
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AC Power line input for indoor controller
Motor output of BLDC
AC output for drain pump
Connection between indoor and outdoor
Display of indoor status
EEV Control output
Step motor output
Float switch sensing
Pipe in thermistor
Pipe out thermistor
Room air thermistor
Remote control line
Dry Contact line
Air cleaner control
Description
Selects master or slave operation for the IDU
Selects mode of operation for optional dry contact:
Variable: Auto or Manual mode can be set with a 7-day
programmable controller or wireless remote
controller (factory setting is Manual)
Auto: Selects Auto mode
N/A
Selects IDU/ODU communications data rate.
Gen 2 data rate is 1.2kbps. Gen 4 data rate is 9.6kbps.
FUNCTION