29
English
Instal
lation Pr
oc
edur
e
•
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.
Band joint
300 mm or
less
550 mm or
less
20 mm or more
1/100 or more
Drain hose
Ceiling
• 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
Ceiling
•
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
1 to 1.5 m
1/100 or more
Ceiling
•
Install horizontally.
Indoor unit
Be horizontal
Flexible hose
• Max. allowable axis gap.
Indoor unit
Max. 20 mm
• Max. allowable bending angle.
Max. 30˚
Indoor unit
NOTE
•
If a concentrated drain pipe is installed, refer to the
figure below.
Main drainpipe
Hanger
Centralized horizontal drainpipe
(more than 1/100 slope)
550mm or less
1~1.5m
Main air vent
Individual
air vent
