Controls Setup - LG Multi V ARNU073M2A4 Installation Manual

DIP Switch Settings
See the following pages for group control configurations. If the
indoor unit is a main, set switch 3 of the indoor unit's DIP switch
to Off. If the indoor unit is a sub, set switch 3 of the indoor unit's
DIP switch to On. (See figures at right.) To ensure the remaining
switches are set correctly, refer to the appropriate unit's DIP switch
settings in the wiring section of this manual.
• Some indoor units do not have a DIP switch bank on the PCB. It is possible to set these units as main or sub with a wireless controller.
Refer to the wireless controller manual for information.
Indoor Unit Control Configurations
The method and configuration of controlling indoor units will vary according to system requirements, and the indoor unit(s) installed. The next
few pages show examples of typical control configurations. Some configurations require LG group control kits and cables (sold separately);
contact your LG representative for information.
Group Control - Method 1
• Controls up to 16 indoor units with one wired remote controller (group control). In group control, it is possible to use the following functions
(depending on the indoor unit):
• Operation selection, stop or mode
• Temperature settings and room temperature check
• Current time changes
• Airflow rate (high, middle, low)
• Reservation settings
• Set only one indoor unit in a group to main; set the others to sub. If main / sub(s) are not set properly in a group application, a malfunction
will occur. See DIP Switch settings below.
• All types of indoor units can be configured in a Group Control - Method 1 configuration.
• A wireless remote controller can be used at the same time as a wired controller.
• A dry contact and central controller can be connected at the same time (to a main indoor unit only).
• A central controller can control all indoor units in a group by controlling the main unit of the group.
• Sub indoor units cannot be individually controlled by the central controller.
• If an error occurs at an indoor unit, the error code is displayed at the wired remote controller. Indoor units not in error can still be controlled.
• Functions such as central control address, heating dead band, ESP settings, etc. must be set in the IDU before setting DIP switch 3 to ON
and connecting the group control wire.
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.

CONTROLS SETUP

Figure 78: Cassette Indoor Unit Main / Sub DIP Switch Settings.
To Select MAIN:
No. 3: Off
To Select SUB:
No. 3: On
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