LG MULTI V ARNU243TSA4 Installation Manual page 16

Installation
h It is possible to connect indoor units since Feb. 2009.
h It can be the cause of malfuctions when there is no setting of master and slave.
h In case of Group Control, it is possible to use following functions.
- Selection of operation, stop or mode
- Temperature setting and room temperature check
- Current time change
- Control of flow rate (High/Middle/Low)
- Reservation settings
It is not possible to use some functions.
If you want to use the two setpoint function, you should be installed the both new thermostat and 4
series products.
* Model name of wired remote controller called New thermostat : PREMTB10U
2. Group Control 2
n Wired remote controllers + Standard Indoor Units
Master
Donʼt connect serial 12V line
Display Error Message
Master
h It is possible to control 16 indoor units(Max.) with the master wired remote control.
h Other than those, it is same with the Group Control 1.
If you want to use the two setpoint function, you should be installed the both new thermostat and 4
series products.
* Model name of wired remote controller called New thermostat : PREMTB10U
16 Indoor Unit
or
Master
Slave
Master
LGAP Network System
Slave
GND
Signal
12 V