LG Therma V AHUW056A3 Engineering Product Data Book page 113

THERMA V
Split Type
10. Installation
Power Cable Specification
The power cord connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (Rubber insulated
cord, type 60245 IEC 66 or H07RN-F)
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
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 terminal 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, replace inverter PCB and
transformer in control box.
Connecting Cable Specification
The connecting cable, being used to connect the indoor unit and outdoor unit, should be complied with IEC
60335-1 standard (This equipment shall be provided with a cord set complying with the national regulation).
If the supply cable is damaged, it must be replaced by a special cable orassembly available from the manufacturer
or its service agent.
Round pressure terminal
Power wire
Outdoor unit
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