LG A3UW186FA3 Installation Manual page 24

Connecting the Cable between Indoor Unit and Outdoor Unit
Connection of Wiring
• Connect refrigerant pipes and connection wires to the appropriate ports maked with matching
alphabets (A, B and C) on this unit.
• Follow the instructions on the wiring nameplate to connect the connection wires of indoor/outdoor
units to terminal board numbers.(1, 2 and 3) Always fix each ground wire separately with a ground
screw.(See the figure below.)
• After completing the wiring, fix the outer coating of wires securely with wire clamps. The wire
clamp on indoor unit side is furnished. Follow the procedure below to install.
• Refer to the circuit diagram on the control cover inside outdoor unit.
:
NOTICE
The terminal board numbers are arranged from top to bottom in order of 1, 2 and 3.
In Case of 3 rooms
A room
B room
C room
Connection wire for indoor units
(H05VV, 4wires, 0.75mm)
(1) Remove the control cover. Loosen the two
screws, and slide the cover in the direction
of the arrow.
(2) Perform wiring with reference the wiring
diagram on a control cover of outdoor unit.
Allow 300 mm for the pulling-out section of
harness. Fix the wires completely with wire
clamps(4 locations).
24 Multi Air Conditioner
A
B
C
CN-PWR
Connection wire for outdoor units
(H05RV, 4wires, 1.2mm)
(3) Put in the cover in the direction of the arrow
then tighten the screws.
Warning
Do not use tapped
wires, stand wires,
extensioncords, or starbust
connections, as they may
cause overtheating,
electrical shock, or fire.