16
Drainpipe and drain hose installation
Drainpipe connection
1. The drain pipe should be installed within 100mm(4”) from the flexible hose, lift up from 100mm(4”) to 550mm(22”)
and lift down 20mm(3/4”) or more.
2. Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space of 1~1.5m(3’ 3”~4’ 11”).
3. Install the air vent in the horizontal drainpipe to prevent water flow back to the indoor unit.
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You may not need to install it if there were proper slope in the horizontal drainpipe.
NOTE
4. The flexible hose should not be installed upward position, it may cause water flow back to the indoor unit.
5. Install U trap at the end of the drainpipe to prevent a nasty smell to reach the indoor unit.
Flexible hose
Air vent
300mm(12”) or less
Horizontal drainpipe more
than 1/100 slope
100~550mm
(4”~22”) or less
1~1.5m(3’ 3”~4’ 11”)
100mm(4”)
or more
Ceiling
Hanger
❇
Flexible hose Installation
Be horizontal
Indoor
Unit
Flexible hose
Max. 20mm(3/4”)
Indoor
Unit
Max.
30°
Indoor
Unit
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Install horizontally
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Max. allowable axis gap
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Max. allowable bending angle
Connect to PVC drain pipe
Connect to indoor unit
Insulation
PVC drain pipe
(Apply adhesive on the inside)
Insulation
flexible hose
(Apply adhesive on the outside)
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Handle with using adhesive not to block inside of flexible hose