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3-6-2. Installing the Ceiling Panel
After completing the wiring process, install the
supplied wiring cover before installing the panel.
It is not possible to install the wiring cover after install-
ing the panel.
The power must be turned ON in order to change the
flap angle. (Do not attempt to move the flap by hand.
Doing so may damage the flap.)
(1) Insert the temporary fasteners (stainless steel) on
the inside of the ceiling panel into the square holes
on the unit to temporarily fasten the ceiling panel in
place. (Fig. 3-20-1)
●
The ceiling panel must be installed in the correct
direction relative to the unit. Align the REF. PIPE
and DRAIN marks on the ceiling panel corner with
the correct positions on the unit.
●
To remove the ceiling panel, support the ceiling
panel while pressing the temporary fasteners toward
the outside. (Fig. 3-20-1)
(2) Align the panel installation holes and the unit screw
holes.
(3) Tighten the supplied washer head screws at the
4 panel installation locations so that the panel is
attached tightly to the unit. (Fig. 3-20-2)
(4) Check that the panel is attached tightly to the
ceiling.
●
At this time, make sure that there are no gaps
between the unit and the ceiling panel, or between
the ceiling panel and the ceiling surface. (Fig. 3-21)
●
If there is a gap between the panel and the ceil-
ing, leave the ceiling panel attached and make fine
adjustments to the installation height of the unit to
eliminate the gap with the ceiling. (Fig. 3-21)
Square hole in unit
Temporary
fastener
Push when
you remove
Temporary
fastener
Fig. 3-20-1
Drain tubing corner
Refrigerant tubing
corner
DRAIN mark
Panel installation hole
(4 locations)
REF. PIPE
mark
Washer head
screws
Ceiling panel
After completing the
wiring process, install
the supplied wiring cover
before installing the panel.
It is not possible to install
the wiring cover after
installing the panel.
Fig. 3-20-2
Do not allow
gaps
Ceiling panel
Main unit
Ceiling surface
Fig. 3-21
Insert a wrench
or other tool into
the corner cover
installation hole
and make fine
adjustments to
the unit nut.
Fig. 3-22
CAUTION
Air leakage
Air leakage from
ceiling surface
Staining
Condensation, water leakage
Adjust so that there are no gaps.
●
If the screws are not sufficiently tight-
ened, trouble such as that shown in
the figure below may occur. Be sure
to tighten the screws securely.
●
If a gap remains between the ceil-
ing surface and the ceiling panel
even after the screws are tightened,
adjust the height of the unit again.
The height of the unit can be adjusted from the
ceiling panel corner hole, with the ceiling panel
attached, to an extent that does not affect the
unit levelness, the drain hose, or other elements.
Fig. 3-23
Fig. 3-19-1
Screw (supplied)
M4-8 or 5/32" – 5/16"
Wiring cover (supplied) Power supply outlet
Inter-unit control wiring
Fig. 3-19-2