16
Installation Procedure
Ins
tallation Pr
oc
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English
Step 11 Performing the drainage test
1
Do a leak test at the connection part of the flexible
hose and the drian pipe:
a
Connect a general hose to the connection part of
the flexible hose of the indoor unit, and pour in
some water.
Hose
Flexible hose
Water leakage
check part
b
After pouring some water, reassemble the rubber
cap on the connection part of a flexible hose of
the indoor unit and firmly tighten it with a band
to prevent leakage.
c
Check the leak test at the part where the adhesive
for the flexible hose and the drian pipe is used.
CAUTION
ŷ
The leak test must be performed for at least 24
hours.
2
Check the condensed water drainage:
a
Pour about 2 liters of water into the indoor unit
drain pan as shown in the picture.
1 way Cassette
4 way Cassette
b
When the electric cable connection is completed
ŷ
Turn on the indoor unit and outdoor unit.
ŷ
Operate in the Cool mode.
CAUTION
ŷ
Only in the Cool mode, you can check the correct
operation of the drain pump.
When the electric cable connection has not been
completed
ŷ
Remove the control box cover of the indoor unit.
ŷ
Connect the power supply (220~240V, 50 Hz) to
the L and N terminals.
ŷ
Reassemble the control box cover and turn on the
indoor unit.
CAUTION
ŷ
When the float switch is not detected due to
insufficient water on the drain pan, the drain
pump will not work.
ŷ
If the power supply is directly connected to the
L and N terminals, communication error message
might appear.
ŷ
After completing the drainage check, turn the
unit off and disconnect the power supply.
ŷ
Reassemble the control box cover.
c
Check whether the drain pump works correctly.
d
Check whether the drainage is performing
correctly at the end of the drain pipe.
e
Check for leakage at the drain pipe and drain pipe
connection part.
f
When leakage occurs, check whether the indoor
unit is level and check the drain hose connection
part, drainpipe connection part and drain pump
connection.
g
When the drainage check is completed and the
condensed water remains on the drain pan,
remove the water.
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Summary of Contents for AC052MN4DKH
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