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Figure 22: LS090HXV2 and LS120HXV2 General Power /
Communications System Schematic.
Power Supply
Circuit Breaker
Ground Wiring
• Use a conduit for the communications cable / power wiring from the outdoor unit to the indoor units.
• Make sure the communications cable / power wiring from the outdoor units to the indoor units, and the power wiring to the outdoor unit are
separate, otherwise, the outdoor unit operation will be affected by electrical noise and will malfunction or fail.
Controller Options
Single Zone Mega, Standard Efficiency, and Mega 115V Wall Mount systems include a wireless handheld
remote controller (Model No. AKB74955602). Optional LG-suppled wired controllers are available. See
"Functions, Controls, Options", or contact an LG representative for more information.
Wireless Handheld Remote Controller features:
• Display Panel: Displays operation conditions.
• On / Off Button: Turns system operation on and off.
• Mode Button: Selects the operation mode: Cooling, Heating, Auto, Dry (Dehumidification), or Fan.
• Temp Up / Down Buttons: Adjusts the desired room temperature in the different modes.
• Fan Speed Button: Sets desired fan speed.
• Reset: Initializes the handheld remote control settings.
Wired Controller Connections
Optional controllers (see "Functions, Controls, Options", or contact an LG representative for more
information) can connect to the Single Zone Mega and Mega 115V Wall Mount indoor units in one of two
different ways.
1. LG Wired Remote Extension Cable with Molex plug (PZCWRC1; sold separately) that connects to the
CN-REMO terminal on the indoor unit PCB.
2. Field-supplied controller cable that connects to the indoor unit terminal block (must be at least
UL2547 or UL1007, and at least FT-6 rated if local electric and building codes require plenum cable
usage). Communication cable from indoor unit to remote controller(s) is to be 22 AWG, 3-conductor,
twisted, stranded, unshielded. Wiring must comply with all applicable local and national codes.
Indoor Unit
Outdoor 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.
ELECTRICAL CONNECTIONS
Figure 23: Terminal Block Wiring Diagram LS090HXV2, LS120HXV2
115 VAC
Figure 24: AKB74955602 Wireless
Handheld Remote Controller.
*
*
PRODUCT DATA | 35
Display
Screen
*
Button
RESET
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