LG LS243HLV3 Engineering Manual page 26

ELECTRICAL CONNECTIONS
Figure 23: Schematic of a Single Zone System When the Wiring is GREATER THAN 130 Feet.
Power Flow: L N
Communication Flow: Comm N
1(L1) (Power, L)
Power
2(L2) (Neutral, N)
G (Ground)
Supply
Diagram is an example of communication and power
cables when the wiring is GREATER THAN 130 feet.
Terminals may be labeled differently depending on the model.
Outdoor and Indoor Unit appearances may vary depending on the model.
• Use a conduit for the communications cable / power wiring from the outdoor unit to the indoor unit.
• Make sure the communications cable / power wiring from the outdoor unit to the indoor unit, 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 Extended Piping Wall Mounted systems include a wireless handheld remote controller (Part
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 Extended Piping Wall Mounted indoor unit 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.
Figure 21: PZCWRC1 LG Wired Remote Extension Cable.
Verify the connectors are properly inserted.
FAN
SPEED
TEMP
OPER
MODE
Figure 22: Wired Controller Connection (Example Only).
Indoor Unit Terminal
RD
GR/YL
BR BL
26 | PRODUCT DATA
GREATER THAN 130 feet: Must Separate Communications and Ground (G) Cable from the Power
(1[L1]) and Neutral (2[L2]) Cable at Least Two (2) Inches.
C/BOX Cable (Plug type)
To Indoor Unit
CN-REMO
Terminal
Extension cable
©
At Least Two (2) Inches
3 (Communications)
low 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.
Figure 20: AKB74955602 Wire-
less Handheld Remote Controller.
Display
Screen
* *
*
Button
Reset
-