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V. Installation
4. Drain hose installation
(Example;4-way cassette type)
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Must fit tightly against
body without any gap.
Drain hose
port
Insulation drain sub
Adhesives
Insulation cover drain
No gap
Insulation drain hose
Band(Not supplied)
Indoor
Unit
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Install air ventilation to drain condensate water
smoothly.
Check that the indoor unit is level with the ceiling by using the leveler.
If it is necessary to increase the height of the drain hose
somewhat, the portion directly after 30cm. If it is raised
higher than 50cm, there can be water leaks.
Air ventilation
Ceiling
300mm or less
1~1.5m
492mm or less
258mm
750mm or less
Do not give the hose and upward gradient
after 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.
Upward gradient
Support pieces
1~1.5m
1/100 or more
Flexible hose
Band joint
Ceiling
Ceiling
Ceiling
1)
Insert the flexible hose to the drain hose port.
2) Install the drain hose so that its length can be as short as
possible. Internal diameter of the drain hose should be the
same or slightly bigger than the external diameter of the
drain hose port.
◆ Inner diameter of the drain hose
3) Wrap the drain hose with the insulation drain as shown in
figure and secure it.
Care must be taken when installing the drain hose for the
indoor unit to ensure that any condensate water is correctly
drained outside.
◆ Give a slightly slant to the drain hose for proper drainage of
condensate.
◆ Secure the drain hose with an adhesive for PVC and tape
not to be separated from the unit.
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◆ Attach the drain hose to the drain hose port with an adhesive for
PVC and tape to prevent water leaks, then secure the hose with
a band etc..(The band is not supplied with the air conditioner.)
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32mm(Outer diameter)
DVM E-D/B(chapter5)-E<03759 3/21/02 7:40 PM Page 20