LG MULTI V 5 ARUN120BTE5 Installation Manual page 22

1,MFL67221438,영영 2018. 10. 4. 영영 11:29 Page 22
22
Master Slave
Master Slave
Master Slave1 Slave2
Master Slave1 Slave2
Master Slave1 Slave2 Slave3
Master Slave1 Slave2 Slave3
Master Slave
Master Slave
Indoor Indoor
Unit Unit
Remote Remote
control control
Indoor Indoor
Unit Unit
Remote Remote
control control
Indoor Indoor
Unit Unit
Remote Remote
control control
Indoor Indoor
Unit Unit
Remote Remote
control control
Multi-Core Cable
Indoor Indoor
Unit Unit
Remote
control
Indoor Indoor
Unit Unit
Remote
control
Indoor Indoor
Unit Unit
Remote Remote
control control
Indoor Indoor
Unit Unit
Remote Remote
control control
Master Slave1 Slave2
Master Slave1 Slave2
CAUTION
!
• Use the 2-core shielded wires for communication cables. 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 in-
stall 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.
Precautions when laying power wiring
Use round pressure terminals for connections to the power terminal
block.
Round pressure terminal
Remote
control
When none are available, follow the instructions below.
- Do not connect wiring of different thicknesses to the power terminal
Remote block. (Slack in the power wiring may cause abnormal heat.)
control
- When connecting cable which is the same thickness, do as shown in
the figure below.
- For wiring, use the designated power cable 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.
CAUTION
!
When the 400 volt power supply is applied to "N" phase by mistake,
check damaged parts in control box and replace them.
Indoor Indoor
Unit Unit
Remote Remote
control control
Indoor Indoor
Unit Unit
Remote Remote
control control
Power cable