– 10 –
Slim Duct Type
Installation Manual
EN
5
DRAIN PIPING WORK
CAUTION
•
Following the Installation Manual, perform
the drain piping work so that water is
properly drained, and apply a heat insulation
so as not to cause a dew droping.
Inappropriate piping work may result in water
leakage in the room and wet of furniture.
Pipe material/Insulator and size
The following materials for piping work and
insulating process are procured locally.
Connection of flexible hose
• Insert the soft socket of the attached flexible
hose into the connecting port of the drain pipe
until it strikes against the end.
• Align the attached hose band to the end of the
pipe connecting port, and then tighten it surely.
REQUIREMENT
• Be sure to fix the soft socket with the attached
hose band and set the tightening position at
upper side.
• Use the attached flexible hose by bending it
with 45° or less so that no breakage or
clogging occurs.
REQUIREMENT
• Be sure to perform heat insulation of the drain
pipes of the indoor unit.
• Never forget to perform heat insulation of the
connecting part with the indoor unit.
An incomplete heat insulation causes dew droping.
• Set the drain pipe with downward slope (1/100
or more), and do not make swelling or trap on
the piping. It may cause an abnormal sound.
• For length of the traversing drain pipe, restrict
to 20m or less.
In case of a long pipe, provide support
brackets with interval of 1.5 to 2m in order to
prevent waving.
• Set the collective piping as shown in the below
figure.
• The hard vinyl-chloride pipe cannot be directly
connected to the drain pipe connecting port of
the indoor unit.
For connection with the drain pipe connecting
port, be sure to fix the attached flexible hose.
• Adhesive agent cannot be used for the pipe
connecting port (hard socket) of the indoor
unit.
Be sure to use the attached hose band for
fixing, otherwise damage or water leakage of
the drain pipe connecting port is caused.
Pipe material
Hard vinyl chloride pipe socket for
VP25
Hard vinyl chloride pipe VP25
(Nominal outer diameter Ø32mm)
Insulator
Foamed polyethylene foam,
thickness: 10mm or more
Top view
NO GOOD
max
45°
max
45°
Side view
Side view
Riser (Trap)
90° Bend
Air outlet
Air outlet
Side view
Air outlet
OK
Support
bracket
1/100 or more
downward
Heat insulator
1.5m to 2m
Arched
shape
Trap
NO
GOOD
VP25
As long as possible (100mm or more)
Downward slope
1/100 or more
VP30 or more
VP25
VP25
Drain pipe connecting port
(Hard socket)
Align the attached hose band to the
end of hose, set the tightening
position upward, and then tighten it.
Ø25 vinyl chloride pipe
(Local supply)
Socket for VP25
(Local supply)
Hard socket
Indoor unit
Soft socket
Adhesive agent prohibited
10-EN
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Summary of Contents for RAV-SM404SDT-E
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