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Installation Procedure
Centralized drainage without the drain pump
1
Install horizontal drainpipe with a slope of 1/100 or more and fix
it by hanger space of 3.28~4.92ft(1~1.5m).
2 Install U-trap at the end of the drainpipe to prevent a nasty smell
to reach the indoor unit.
Centralized drainage with the drain pump
1
Install main air vent at the front of the farthest indoor unit from
the main drain when installed indoor units are more than 3.
2 You may need to install individual air vent to prevent water flow
back at the top of each indoor unit drainpipe.
Hanger
Individual
air vent
Main drainpipe
20
English
Ceiling
Horizontal drainpipe
more than 1/100 slope
3.28~4.92ft
Main air vent
(1~1.5m)
21.65inch
(550mm) or less
Centralized horizontal drainpipe
(more than 1/100 slope)
Step 11 Performing the drainage test
Prepare a little water about 0.53 gallons(2 liters).
1 Loosen screws and take out the side cover plate.
2 Pour water into the indoor unit as shown in figure.
NOTE
• Drainage test should be done after installation has been
finished. To avoid water overflow from the indoor unit
because the drain tube is blocked.
AC***BNLDCH
AC***BNHDCH
the model.
3
Confirm that the water flows out through the drain hose.
4
When the drain pump is installed, operate the unit as
cooling mode and check a drain pump pumping.
5
Check drain water drops at the end of the drain pipe.
6 Make sure there is no water leak at the drainage.
7
Reinstall the side cover plate.
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