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Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PRODUCT DATA | 41
Product Data
Indoor Unit Terminal Block
1(L1 )2(L2)
GND
3
Branch Distribution Unit
GRN /
YLW
BR
BL
RD
CN-REMO
YL
RD BK
Comm.
12V
Power
Ground
Figure 29: PZCWRC1 LG Wired Remote Extension Cable.
Controller Options
Vertical Air Handling indoor units include LG-supplied wired controller (PQRCVCL0QW), but other
optional LG-supplied wired controllers are available. The wireless handheld controller (Model No.
PQWRHQ0FDB) is also an optional accessory with use of the wired controller.
• Operation Display Panel: Displays operation conditions.
• Temperature Control Button: Sets desired temperature.
• Fan Speed Button: Sets desired fan speed.
• On / Off Button: Turns system operation on and off.
• Mode Selection Check Button: Selects the operation mode: Cooling, Heating, Auto, Dry
(Dehumidification), or Fan.
Figure 30: PQRCVCL0QW Wired
Controller.
TEMP
FA N
SPEED
OPER
MODE
Operation Display
Panel
Temperature Control
Button
Fan Speed Button
On/Off Button
Mode Selection
Check Button
Each function will display on the LED for about three (3) seconds when the power is rst cycled on.
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 31: Wired Controller Connection on the Indoor Unit Terminal Block.
When using eld-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.
Wired Controller Connections
Controllers can connect to the 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.
ELECTRICAL CONNECTIONS
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