6
5. INSTALLATION OF INDOOR UNIT
Depending on the optional parts, it may be easier to attach
them before installing the indoor unit. Refer to also the
installation manual attached to the optional parts.
For installation, use the attached installation parts and
specified parts.
(1) Install the indoor unit temporarily.
• Fix the hanger to the hanging bolt.
Make sure to securely
the hanger with the nut and the
washer for hanger (11) from the upper and lower side.
(Refer to Fig. 6)
If the washer clamp (9) is used, the upper side washer
for hanger (11) may be protected from falling off.
(Refer to Fig. 7)
Washer
clamp (9)
(accessory)
Insert
Upper nut
Washer for
hanger (11)
(accessory)
Fig. 7
• Keep the air outlet covered with a protective sheet to prevent
weld spatter and other foreign materials from entering the
indoor unit and damaging the resin drain pan.
(If holes or cracks are generated in the resin drain pan, water
can leak.)
(2) Adjust so that the unit is properly positioned.
(3) Check the level of the unit. (Refer to Fig. 8)
(4) Remove the washer clamp (9) used for preventing the
washer for hanger (11) from dropping and tighten the up-
per side nut.
Hanger
Bottom of
product
Level
Vinyl tube
[Maintaining horizontality]
Feed water into the tube and
set the indoor unit to the water
levels on the left and right.
Fig. 8
In addition, adjust clearance (50 - 100 mm) from the ceil-
ing in advance.
<Installation examples>
Foundation bolt
Hanging bolt
Indoor
unit
Ceiling slab
Long nut or
turnbuckle
Note) Components shown in the figure above are
all local procurement.
(6) In the case of changing the preset suction to bottom
side suction, replace the chamber cover and the suc-
tion
(Refer to Fig. 5)
1. Remove the suction
and chamber cover.
2. Replace the suction
and the chamber cover.
CAUTION
• Secure a maintenance space for the drain pan
and electrical components before installing the indoor
unit.
• Secure a
maintenance space for the
chamber, and peripheral components before installing the
indoor unit.
<20-125 class>
Replacement
Chamber cover
<140 class>
Replacement
Suction flange
Chamber cover
Note)
1. Be sure to remove chamber cover one side by
one side.
2. For this model, maintenance of the control box
through side is only available.
Maintenance through bottom is not available.
Fig. 5
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