LG B42AWYN762, Installation Manual

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20 Ceiling Concealed Duct Air Conditioner
Connecting Cables between Indoor Unit and Outdoor Unit
Connecting the cable to the Outdoor Unit
• Remove the side panel from the unit by loosing screws.
Connect the wires to the terminals on the control board individually as previous page.
• Secure the cable onto the control board with the holder (clamper).
• Refix the cover control to the original position with the screw.
CAUTION: After the confirmation of the above conditions, prepare the
wiring as follows:
1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be
guided by the circuit diagram pasted on the inside of control box cover.
2) Provide a circuit breaker switch between power source and the unit.
3) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from
vibrations to which the unit is subjected during the course of transportation. Check them and make
sure that they are all tightly fastened. (If they are loose, it could give rise to burn-out of the wires.)
4) Specification of power source
5) Confirm that electrical capacity is sufficient.
6) Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on
the name plate.
7) Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
8) Never fail to equip a leakage breaker where it is wet or moist.
9) The following troubles would be caused by voltage drop-down.
• Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the
normal function of a overload protection device.
• Proper starting power is not given to the compressor.
When connecting main power cable,
make sure the rubber bushes are
properly used in knock-out holes after
removing the Insulation.
Connecting cable terminal
Power cord terminal
Cord clamp
Cord clamp
Insulation