Samsung Duct Type Series User & Installation Manual page 31

Drainpipe and drain hose installation
Drainpipe Connection
1.
2. Install U-trap at the end of the drainpipe to prevent a nasty smell to reach the indoor unit.
3. Do not install the drainpipe to upward position. It may cause water flow back to the unit.
Flexible hose
Ceiling
1.
2.
3 Install the air vent in the horizontal drainpipe to prevent water flow back to the indoor unit.
You may not need to install it if there were proper slope in
the horizontal drainpipe.
4 The flexible hose should not be installed upward position,
it may cause water flow back to the indoor unit.
Air vent
300mm or less
Flexible hose
Ceiling
Testing the drainage
Prepare a little water about 5 liter.
1
Pour water into the base pan in the indoor unit as
shown in figure.
2 Confirm that the water flows out through the drain hose.
30
Hanger
Horizontal drainpipe
more than 1/100 slope
7.9inch
Hanger
or more
0.79inch
or more
Horizontal drainpipe
more than 1/100 slope
MA Duct Type