How To Connect Wirings; Wiring Connection - LG ARNH10GK2A2 Installation Manual

How to connect wirings

Remove the box cover of electric parts and connect the wiring.
Ground
Communi-
Power
cation cable
cable
Power cable

Wiring Connection

Connect the wires to the terminals on the control board individually according to the outdoor unit
connection.
• Ensure that the wire color of the outdoor unit and terminal No. are same as those of the indoor unit
respectively.
Terminal block Terminal block
of indoor unit of indoor unit
1(L) 2(N) 3(A)
Power cable
WARNING : Make sure that the screws of the terminal are free from looseness.
CAUTION:
After checking the above status, prepare for the following wiring :
1) Use individual power for the unit and refer to the circuit diagram posted on the inside of the control cover.
2) Make sure to install the circuit breaker when power is connected to the unit.
3) The bolts used for cable connection may become loose by the vibration generated during the trans-
portation. Make sure to check again and fasten them tightly. (If they are loose, it may cause fire.)
4) Make sure to check power specification.
5) Electrical capacity shall be sufficient.
6) The initial voltage shall be maintained at 90% of the rated voltage on the name plate.
7) The thickness of the power cable complies with the designated specification. (length and thickness of
the power cable)
8) Do not install the circuit breaker in the place where there is a lot of moisture or where it is wet.
9) The following problems may be the cause of voltage drop.
- Magnetic switch vibration, defective contact, fuse damage, malfunction of overload protection device
h Based on the owner's manual, teach how to operate and use the unit to the user.
(temperature setting, etc.)
Communi-
cation cable
Outdoor unit Indoor unit
4(B)
SODU SODU IDU
Communication cable
CAUTION:
When connecting the power and communication
cable, always use the terminal connector (O-
ring, Y-ring).
Make sure to tighten so that the screw of the ter-
minal does not get loose.
Central controller
IDU INTERNET DRY1
Hydro Kit Installation Manual 25
Installation
Outdoor
unit
DRY2 GND 12