Samsung AM***FN*D series User Manual page 29

Drain pipe and drain hose installation
A
Centralized Drainage
Without the drain pump
Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space of
1
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.
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
Main drainpipe
28
Ceiling
Individual
air vent
Horizontal drainpipe
more than 1/100 slope
3.28~4.92ft
(1~1.5m)
Main air vent
21.65inch
(550mm) or less
Centralized horizontal drainpipe
(more than 1/100 slope)