LG ARWN160BA2 Installation Manual page 48

Electrical Wiring
Outside Unit
Master Slave1 Slave2
Outside Unit
Master Slave1 Slave2
2-Core Shield Cable
• Use the 2-core shield cables for transmission lines. Never use them together with power cables.
• The conductive shielding layer of cable should be grounded to the metal part of both units.
• Never use multi-core cable
• As this unit is equipped with an inverter, to install a phase leading capacitor not only will deteriorate
power factor improvement effect, but also may cause capacitor abnormal heating. Therefore, never
install a phase leading capacitor.
• Make sure that the power unbalance ratio is not greater than 2%. If it is greater the units lifespan will
be reduced.
u Precautions when laying power wiring
Use round pressure terminals for connections to the power terminal block.
When none are available, follow the instructions below.
• Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring
may cause abnormal heat.)
• When connecting wiring which is the same thickness, do as shown in the figure below.
• For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure
being exerted on the terminal block.
• Use an appropriate screwdriver for tightening the terinal screws. A screwdriver with a small head will
strip the head and make proper tighterning impossible.
• Over-tightening the terminal screws may break them.
48 Outside Unit
Indoor Indoor
Unit Unit
Remote Remote
controller controller
Indoor Indoor
Unit Unit
Remote Remote
controller controller
Round pressure terminal
Outside Unit
Master Slave1 Slave2
Outside Unit
Master Slave1 Slave2
Multi-Core Cable
Power wire
Indoor Indoor
Unit Unit
Remote Remote
controller controller
Indoor Indoor
Unit Unit
Remote Remote
controller controller