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Mounting filter rails and filters
1
Mount the filter rail so that the hooks fit into the corresponding holes.
(Note that the upper and lower filter rails are not identical.)
Changing from back air intake to under air intake
1
Remove the filters on back of unit.
2
Remove the suction board cover attached to the bottom, and screw it to the back of unit.
3
Mount the supplied rail to the bottom, then set the filter.
* The sizes of the left and right covers of SM80 class unit are not identical. As shown in the figure, re-mount the
covers left-right reversed by facing the hook part upwards.
2
Mount the filter stopper.
* When mounting the rails, push them until the 3
latches click.
3
Slide and push the filters until it stop.
* Insert the filters into the direction which the
arrows, carved on the filters, show. (2 filters
are identical)
Filter stopper (accessory)
Lower filter rail
Square hole
Fit this hook into
the square hole.
Upper filter rail
Suction board cover
Suction board cover
Hook part
Hook part
Screw
Suction board cover
Suction board cover
Screw
5
Drain piping
CAUTION
Following the Installation Manual, perform the drain piping work so that water is properly drained. Apply a heat
insulation so as not to cause a dew condensation.
Inappropriate piping work may result in water leakage in the room and wet furniture.
• Provide the indoor drain piping with proper heat insulation.
• Provide the area where the pipe connects to the indoor unit with proper heat insulation. Improper heat insulation
will cause condensation to form.
• The drain pipe must be sloping downward (at an angle of 1/100 or more), and do not run the pipe up and down
(arched shape) or allow it to form traps. Doing so may cause abnormal sounds.
• Restrict the length of the traversing drain pipe to 20 meters or less. For a long pipe, provide support brackets at
intervals of 1.5 to 2 meters to prevent flapping.
• Install the collective piping as shown in the following figure.
• Do not provide any air vents. Otherwise, the drain water will spout, causing water to leak.
• Do not allow any force to be applied to the connection area with the drain pipe.
Pipe material, size and insulator
The following materials for piping work and insulating process are locally procured.
Connecting drain pipe
Insert flexible drain hose into upper drain pipe of main unit as far as it will go. Fix it with hose band.
REQUIREMENT
Mount the flexible drain hose using the hose band without using adhesive.
Pipe material
Hard vinyl chloride pipe VP25 (Nominal outer diameter Ø32 mm)
Insulator
Foamed polyethylene foam, thickness: 10 mm or more
1.5 m to 2 m
Support
bracket
Downward slope
1/100 or more
Arched shape
Trap
Downward slope
1/100 or more
(Collective
piping)
As long as possible
(Approx. 10 cm)
Heat
insulator
Incorrect
VP30
Flexible
drain hose
Hose band
Flexible
drain hose
Hose band
Indoor unit
1
0
to
12
m
m
15 mm or less
10 mm
63-EN
64-EN
+00EH99884801-2_01EN.book Page 32 Monday, January 28, 2013 7:54 PM
