Samsung MCU-Y6NEE Installation Manual page 16

Refrigerant piping works
Draining form
Without the drain pump
1. Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space of 1.0~1.5m.
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.
With the drain pump
1. The drain pipe should be installed within 300mm to 550mm from the flexible hose and then lift down 20mm or more.
2. Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space of 1.0~1.5m.
3. Install the air vent in the horizontal drainpipe to prevent water flow back to the indoor unit.
• Y ou 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.
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Flexible hose
Ceiling
Air vent
200mm
300mm or less
or more
20mm
or more
Flexible hose
Within
300~550mm
1~1.5m
Hanger
Horizontal drainpipe
more than 1/100 slope
1~1.5m
Hanger
Horizontal drainpipe
more than 1/100 slope
Ceiling