LG MFL39754838, Installation Manual

Page: 16 / 21

CONNECTING THE CABLE
BETWEEN INDOOR & OUTDOOR UNIT
Connect the cable to the
outdoor unit
A
Remove the control cover from the unit by
loosening the screw.
Connect the wires to the terminals on the
control board individually.
B
Secure the cable onto the control board with
the cord clamp.
C
Refix the control cover to the original
position with the screw.
D
Use a recognized circuit breaker 20A (18K),
25A (24K, 26K) between the power source
and the unit. A disconnecting device to
adequately disconnect all supply lines must
be fitted.
After the confirmation of the above conditions, prepare the wiring as follows:
Never fail to have an individual power circuit specifically for the air conditioner. As for
the method of wiring, be guided by the circuit diagram posted on the inside of control
cover.
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 cause burn-out of the wires.)
Specification of power source.
Confirm that electrical capability is sufficient.
See to that the starting voltage is maintained at more than 90 percent of the rated
voltage marked on the name plate.
Confirm that the cable thickness is as specified in the power source specification.
(Particularly note the relation between cable length and thickness. (Refer to page 11))
Always install an earth leakage circuit breaker in a wet or moist area.
The following would be caused by voltage drop.
The means for disconnection from a power supply shall be incorporated in the fixed
wiring and have an air gap contact separation of at least 3mm in each active(phase)
conductors.
Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the
normal function of the overload.
1)
2)
3)
4)
5)
6)
7)
8)
9)
Outdoor Unit
Terminal block
Over 5mm
Cover control
Connecting cable
Connecting cable
Cover Control
CAUTION
INSTALLATION
16