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Installation Procedure
• If it is necessary to increase the height of the
drain pipe, install the drain pipe straight within
11.81 inch(300mm) from the drain hose port. If it is
raised higher than 21.65 inch(550mm), there may be
water leaks.
Drain hose
Band joint
• 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.
• 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
Hanger
Main drainpipe
14
English
0.79 inch(20mm) or more
more than 1/100 slope
11.81 inch(300mm) or less 21.65 inch(550mm) or less
Ceiling
Under gradient
Ceiling
3.28 to 4.92 ft(1 to 1.5m)
more than 1/100 slope
Ceiling
Individual
air vent
• Install horizontally.
Be horizontal
Indoor unit
• 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.
3.28 to 4.92 ft(1 to 1.5m)
Main air vent
Centralized horizontal drainpipe
(more than 1/100 slope)
Flexible hose
Max. 0.79 inch (20mm)
Max.
30
21.65 inch(550mm) or less
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