LG MULTI F Engineering Manual page 170

VERTICAL-HORIZONTAL INDOOR UNITS
Installation and Best Layout Practices
Controller Options
Vertical-Horizontal Air Handling indoor units include an LG-supplied wired controller (AKB72955816)
but other optional LG-supplied wired controllers are available (see Controls and Options overview
on pages 9 to 12 in this manual's Introduction section). 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.
Each function will display on the LED for about three (3) seconds when the power is first cycled on.
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, 22 AWG, two-core,
one-shield core, at least FT-6 rated if local electric and building codes require plenum cable usage).
Figure 241:PZCWRC1 LG Wired Remote Extension Cable.
Verify the connectors are properly inserted.
FAN
SPEED
TEMP
OPER
MODE
Figure 242:Wired Controller Connection on the Indoor Unit Terminal Block.
CN-REMO
Indoor Unit Terminal Block
RD BK
YL
1(L1 ) 2 (L2)
12V
Power Ground
Comm.
170 | VERTICAL-HORIZONTAL
C/BOX Cable (Plug type)
Extension cable
Outdoor Unit Terminal Block or
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
GND
3
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.
AKB72955816
,
1
Simple Mode Controllers for the vertical-horizontal air
1
handling indoor units are also referenced by Model No.
PQRCVCL0QW.
To Indoor Unit
CN-REMO
Terminal
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.
3 or S
GND
F
MULTI
F
MULTI MAX
Wired Controller.
1
FA N
SPEED
TEMP
OPER
MODE