LG AMNQ24GTPB0 Installation Manual page 19

Drain test
The air conditioner uses a drain pump to drain
water.
Use the following procedure to test the drain
pump operation:
• Connect the main drain pipe to the exterior
and leave it provisionally until the test
comes to an end.
• Feed water to the flexible drain hose and
check the piping for leakage.
• Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.
• When the test is complete, connect the flex-
ible drain hose to the drain port on the in-
door unit.
Feed water
Drain Pump
Drain pan
CAUTION
!
The supplied flexible drain hose should
not be curved, neither screwed.
The curved or screwed hose may cause a
leakage of water.
Flexible drain hose
(accessory)
Main
drain pipe
Drain
port
Glue the joint
Drain hose connection
Use the clip (accessory)
Flexible drain hose Flexible drain hose Flexible drain hose
1/50~1/100
MAX 700mm
CAUTION
!
After the confirmation of the above condi-
tions, 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 posted on the in-
side of control box cover.
2
Provide a circuit breaker switch be-
tween power source and the unit.
3
The screws which fasten the wiring in
the casing of electrical fittings are li-
able 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 suffi-
cient.
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 specifi-
cation. (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, dam-
age on the contact point, fuse break-
ing, disturbance by the normal
function of an overload protection de-
vice.
- Proper starting power is not given to
the compressor.
INSTALLATION
19