LG PREMTB10U Installation & Operation Manual page 57

③ Make sure each wire is securely fastened under each screw terminal and the wires are not in
contact with each other.
④ Please connect the Terminal blocks of indoor unit's C/BOX and wired remote controller by
referring to the images and contents shown below.
Connect the yellow(signal) part of the Thermostat's terminal block and the 'YL' part of the
indoor unit's terminal block.
Connect the red(12V) part of the Thermostat's terminal block and the 'RD' part of the in-
door unit's terminal block.
Connect the black(GND) part of the Thermostat's terminal block and the 'BK' part of the in-
door unit's terminal block.
Thermostat PCB
YELLOW RED BLACK
Signal 12V GND
<Thermostat>
C In case of loosened screws or insufficient contact between the terminal and the wire, thermo-
stat may not function properly.
C When the power is off on the Thermostat, check the connection between the Thermostat and
Terminal Block .
C Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a
small head will strip the head and make proper tightening impossible.
C Over-tightening the terminal screws may break wires and terminal block structure.
! CAUTION
• Installation work must be performed in accordance with the national wiring standards and
local code by authorized personnel only.
• Apply enclosed noncombustible conduit(metal raceway) totally or use cable above FT-6 level
in case of local electric & building code that requires plenum plenum(CMP)cable usage.
• AWG#22, 3 core shielded is recommended when using the large hole in the center of the
backplate.
• AWG#24, 3 core shielded is recommended when using the side or top knock-out of the back-
plate.
5
Please use an extension cable if the distance between the Thermostat and the indoor unit is
longer than 32ft (10m).
!
CAUTION
When installing the Thermostat, do not bury it in the wall.
(It can cause damage in the temperature sensor.)
Do not install the cable to be 164ft (50m) or longer. (It can cause communication error.)
Indoor unit
side
<Indoor Terminal Block>
INSTALLATION METHOD
Thermostat PCB Indoor
Terminal Terminal
block Remark block
YELLOW
RED
BLACK
57
Function
YL Signal
RD 12V
BK GND