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Electrical System Installation
Due to our policy of continuous product innovation, some specifications may change without notification.
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ELECTRICAL SYSTEM INSTALLATION
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” in the Single Zone HEV2, HFV3, HXV2 Wall Mounted Engineering Manu-
al”, 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”, in the Single Zone HEV2, HFV3, HXV2 Wall
Mounted Engineering Manual” or contact an LG representative for more information) can connect to the
Single Zone Mega, Standard Efficiency, 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.
Display
Screen
Button
*
*
*
RESET
Figure 87:
AKB74955602 Wireless
Handheld Remote Controller.
Figure 88: PZCWRC1 LG Wired Remote Extension Cable.
Verify the connectors are properly inserted.
C/BOX Cable (Plug type)
Extension cable
To Indoor Unit
CN-REMO
Terminal
TEMP
FAN
SPEED
OPER
MODE
Figure 89: Wired Controller Connection on the Indoor Unit
Terminal Block (Appearances and Terminal Placement
Will Vary Depending on Model).
When using field-supplied controller cable, make sure to connect the yellow to yellow
(communications wire), red to red (12V power wire), and black to black (ground wire)
terminals from the remote controller to the indoor unit terminal blocks.
Controller Options
Indoor Unit Terminal Block
1(L1) 2
(L2)
GND
3
Outdoor Unit
Terminal Block
GND
GRN / Y
LW
BR
BL
RD
3
CN-REMO CN-CC