Electrical Wiring - LG THERMA V AHBW036H0 Installation Manual

Electrical Wiring

1. Follow ordinance of your governmental organization for technical standard related to electrical
equipment, wiring regulations and guidance of each electric power company.
WARNING
Be sure to have authorized electrical engineers do the electric work using special
circuits in accordance with regulations and this installation manual. If power supply
circuit has a lack of capacity or electric work deficiency, it may cause an electric shock
or fire.
2. Install the Unit transmission line away from the power source wiring so that it is not affected by
electric noise from the power source. (Do not run it through the same conduit.)
3. Be sure to provide designated grounding work to Unit.
CAUTION
Be sure to correct the unit to earth. Do not connect earth line to any gas pipe, liquid
pipe, lightening rod or telephone earth line. If earth is incomplete, it may cause an
electric shock.
4. Give some allowance to wiring for electrical part box of Units, because the box is sometimes
removed at the time of service work.
5. Never connect the main power source to terminal block of transmission line. If connected,
electrical parts will be burnt out.
6. Only the transmission line specified should be connected to the terminal block for Unit transmission.
CAUTION
• This product have reversed phase protection detector that only works when the
power is turned on. If there exists black out or the power goes on and off which
the product is operating, attach a reversed phase protection circuit locally.
running the product in reversed phase may break the compressor and other
parts.
• Use the 2-core shield cables for communication lines. Never use them together
with power lines.
• 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 unit's lifespan will be reduced.
• Introducing with a missing N-phase or with a mistaken N-phase will break the
equipment
Installation
Installation Manual 21