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Install air ventilation to drain condensation smoothly.
Air ventilation
If it is necessary to increase the height of the drain
pipe, install the drain pipe straight within 300 mm
from the drain hose port. If it is raised higher than
550 mm, there may be water leaks.
Drain hose
Band joint
300 mm
or less
Do not give the hose an upward gradient beyond
the connection port. This will cause water to flow
backwards when the unit is stopped, resulting in
water leaks.
Under gradient
Do not apply force to the piping on the unit side
when connecting the drain hose. The hose should not
be allowed to hang loose from its connection to the
unit. Fasten the hose to a wall, frame or other support
as close to the unit as possible.
Support pieces
Ceiling
20 mm or more
1/100 or more
550 mm
or less
Ceiling
Ceiling
100 mm or more
1 to 1.5 m
1/100 or more
Ceiling
Install horizontally.
Be horizontal
Indoor unit
Flexible hose
Max. allowable axis gap.
Indoor unit
Max. allowable bending angle.
Indoor unit
NOTE
If a concentrated drain pipe is installed, refer to the
figure below.
Air ventilation
Concentrated
drain pipe
Max. 20 mm
Max. 30˚
1/100 or more slope
15
English
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