Samsung AC BNNDCH Series - Step 11: Performing Drainage Test

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Installation Procedure
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.
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
• The leak test must be performed for at least 24
hours.
2 Check the condensed water drainage:
a Pour about 0.53 gallons(2 liters) of water into the
indoor unit drain pan as shown in the picture.
b When the electric cable connection is completed
• Turn on the indoor unit and outdoor unit.
• Operate in the Cool mode.
CAUTION
• Only in the Cool mode, you can check the correct
operation of the drain pump.
When the electric cable connection has not been
completed
• Remove the control box cover of the indoor unit.
• Connect the power supply (208~230V, 60 Hz) to the
L and N terminals.
• Reassemble the control box cover and turn on the
indoor unit.
CAUTION
• When the float switch is not detected due to
insufficient water on the drain pan, the drain
pump will not work.
• If the power supply is directly connected to the L
and N terminals, communication error message
might appear.
• After completing the drainage check, turn the
unit off and disconnect the power supply.
• 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.
Water leakage check part
Hose
Flexible hose