Installation
Duct
Installing the drain hose and drain pipe
1
Push the supplied drain hose as far as possible over the drain
socket.
2
Tighten the metal clamp as shown in the picture.
3
Wrap the supplied large sealing pad over the metal clamp and
drain hose to insulate and fix it with clamps.
4
Insulate the complete drain piping inside the building (field
supply).If the drain hose cannot be sufficiently set on a slope, fit
the hose with drain raising piping (field supply).
5
Push the drain hose up to insulation when connecting the drain
hose to drain socket.
Without the drain pump
1
Install horizontal drainpipe with a slope of 1/100 or more and fix
it by hanger space of 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.
3
Do not install the drainpipe to upward position. It may cause
water flow back to the unit.
3.28~4.92ft
(1~1.5m)
Horizontal drainpipe
more than 1/100 slope
Ceiling
Hanger
Flexible hose
With the drain pump
1
The drain pipe should be installed within 11.81inch(300mm) to
21.65inch(550mm) from the flexible hose and then lift down
0.79inch(20mm) or more.
2
Install horizontal drainpipe with a slope of 1/100 or more and fix
it by hanger space of 3.28~4.92ft(1~1.5m).
3
Install the air vent in the horizontal drainpipe to prevent water
flow back to the indoor unit.
NOTE
• 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.
Centralized drainage without the drain pump
1
Install horizontal drainpipe with a slope of 1/100 or more and fix
it by hanger space of 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.
3.9
4inch(
100mm
)
or
mor
e
Ceiling
Horizontal drainpipe
more than 1/100 slope
Centralized drainage 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.
Main drainpipe
Hanger
Main air vent
21.65inch
(550mm) or less
Centralized horizontal drainpipe
(more than 1/100 slope)
3.28~4.92ft
(1~1.5m)
Individual
air vent
A-A’
Steel ring of drain hose
Joint of drain hose
Drain hose
Drain hose
Fix with Cable-Tie
Wrap thermal sleeve hose
Indoor
unit
Reducer
