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ELECTRICAL
Communication Cable Specifications
Communications Cable Specifications from Indoor Units to Remote Control-
lers
• Communication cable from Indoor Unit to Remote Controller(s) is to be LG supplied or field supplied 22 AWG, 3-conductor, twisted, strand-
ed, unshielded. Wiring must comply with all applicable local and national codes.
• If using LG supplied cable and the length needs to be extended, the LG Extension Kit (sold separately) must be used. A maximum of four
(4) kits (up to 165 feet) can be used.
• Remote Controllers have hardwired connections: SIG - 12V - GND (Comm.) terminals.
• Indoor unit controller connections depend on type of indoor unit being installed. Some indoor units use terminal block connections; other
indoor units use Molex connections. See diagrams below for the two options. Refer to the wiring diagram schematic found in the indoor unit
itself, or to the indoor unit wiring diagrams in the Engineering Manuals for more information.
•
NEVER splice, cut, or extend cable length with field provided cable. Always include enough cable to cover distance between the indoor
unit and the remote controller.
• Set the indoor unit operating parameters using DIP switches, or by setting up the remote controller. Refer to the remote controller installa-
tion manuals for more details.
Need Image with RTU and applicable controller
Figure 13: One Example of Indoor Unit to Zone Controller Connection.
4 5 6
13 14 15
Cable connected to Zone Controller is the factory default connection.
Typical Indoor Unit
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.
Figure 14: Another Example of Indoor Unit to Zone Controller
Connection.
CN-REMO
B K
R D
Y L
Front
CN-REMO
Y L
R D B K
Back
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