Samsung Duct Type Series Installation Manual page 16

Drain pipe and drain hose installation
Drain pipe Connection
Without the drain pump
1. Install horizontal drain pipe with a slope of 1/100 or more and fix it by hanger space of 1.0~1.5 m(3.29~4.92').
2. Install U-trap at the end of the drain pipe to prevent a nasty smell to reach the indoor unit.
3. Do not install the drain pipe to upward position. It may cause water flow back to the unit.
Drain pipe cleaning hole
With the drain pump
1. The drain pipe should be installed within 330 mm(12.99") from the flexible hose and then lift down 20 mm(0.79") or
more.
2. Install horizontal drain pipe with a slope of 1/100 or more and fix it by hanger space of 1.0~1.5 m(3.29~4.92').
3. Install the air vent in the horizontal drain pipe to prevent water flow back to the indoor unit.
• You may not need to install it if there is proper slope in the horizontal drain pipe.
NOTE
4. The flexible hose should not be installed upward position, it may cause water flow back to the indoor unit.
300 mm(11.81") or less
Flexible hose
16
Ceiling
Air vent
200 mm
(7.87")or
more
20 mm
(0.79")or
more
Within
330 mm(12.99")
Ceiling
1~1.5 m(3.29~4.92')
H≥50 mm(1.97")
1/2H
Horizontal drain pipe more than 1/100 slope
1~1.5 m(3.29~4.92')
Hanger
Horizontal drainpipe more
than 1/100 slope
Hanger