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54
Single Zone Art Cool Premier Wall Mounted Installation Manual
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.
ELECTRICAL SYSTEM INSTALLATION
Communication / Connection (Power) Cable Specifications from Outdoor
Unit to Indoor Unit
Figure 80: Typical Single Zone Outdoor Unit to Indoor Unit Wiring and
Communications Cable Diagram.
Communication / Connection
(Power), Ground Cable
From Outdoor Unit
To Indoor Unit
13/16"
GN/YL
GN/YL = (Ground, Yellow)
7/16" ± 1/8"
&RQQHFWLRQVDQG6SHFL¿FDWLRQV
• Always verify the communication cable is connected to a communi-
cations terminal on the Single Zone Art Cool Premier unit. Never
apply line voltage power to the communication cable connection. If
contact is made, the PCBs will be damaged.
• The shield of the communications cable connecting the outdoor unit to
the indoor unit must be grounded only to the outdoor unit frame.
• Tie the shield of each cable segment together using a wire nut at the
indoor unit. Maintain polarity throughout the communication network.
• Position the incoming power to the outdoor unit away from the power
/ communications cables from the outdoor unit to the indoor unit.
•
Never use a common multiple-core communications cable.
All power wiring and communication cable installation must be performed by trained service providers working in accordance with local, state, and
National Electrical Code (NEC) / UL / ETL federal regulations related to electrical equipment and wiring, and following the manufacturer product
diagrams, requirements, and instructions in this manual. Failure to do so will lead to electric shock which can cause physical injury or death.
Figure 81: Typical Single Zone Power / Communication System Dia-
gram.
Indoor Unit
Terminal
Power Supply
1 Phase, 208-230V
Connecting Cable
Grounding Line
Grounding Line
Outdoor Unit
Terminal
If 3-pole disconnect is
required by local code,
install here.
• Communication / connection (power) cable from the single zone
outdoor unit to the indoor unit must use a minimum of 14 AWG,
four (4) conductor, stranded, shielded or unshielded (if shielded,
it must be grounded to the chassis of the outdoor unit only), and
must comply with applicable local and national codes.
• Use of 14 AWG, four (4) conductor, stranded, shielded or unshield-
ed wire is allowed for lengths up to the published maximum pipe
length, plus recommended slack at both ends.
• Insulation material as required by local code.
• Firmly attach the cable; provide slack but secure in a way to pre-
vent external forces from being imparted on the terminal block.
• Wiring must be completed without splices.
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