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Attaching Ceiling Panel
Do not apply excessive force to the louver when attaching
the ceiling panel, as it may cause malfunction of the louver.
1. Insert the two movable hooks at the inside of the ceiling
panel into the rectangular holes of the indoor unit, and hook
them tentatively onto the indoor unit. (Fig. 1 and Fig. 2)
• The ceiling panel has an orientation to the indoor unit for
installation. Attach the ceiling panel so that the louver
motor wire comes to the electric parts box side.
• To detach the ceiling panel, push the movable hooks
outward while holding the ceiling panel.
2. Lift the corner of the panel inner frame and insert the panel
fixing screw of the indoor unit into the panel fixing bracket
hole (Fig. 3). Then slide the panel fixing bracket in the
direction of arrow and push it to the specified position
(Fig. 4). Repeat this procedure for the four panel fixing
brackets.
• Slide the panel fixing bracket while keeping the screw
head lower than the bracket.
• The panel fixing screws have been attached to the indoor
unit since its shipping.
3. Tighten the four panel fixing screws to secure the ceiling
panel until it comes into close contact with the indoor unit.
(Fig. 5)
4. Check that the ceiling panel is in close contact with the ceiling.
• Make sure that there is no gap between indoor unit and
ceiling panel and between ceiling panel and bottom of the
ceiling. (Fig. 6)
CAUTION
• Insufficient tightening of the screws may result in the
following problems. Tighten the screws securely.
Air leakage
Air leakage
from bottom
of the ceiling
Dew drop/water leakage
Contamination
• If a gap between ceiling panel and
bottom of the ceiling still remains after
the screws are tightened, readjust the
height of the indoor unit.
No gap
Connecting wires of Ceiling Panel
1. Remove the two screws of the electric parts box cover, and
detach the electric parts box cover by pressing the hook.
(The electric parts box cover is clamped onto the hinge.)
2. Pass the louver motor wire from the ceiling panel through
the clamper as shown, and connect the wire to the white
20P connector CN510 on the P.C. board of the indoor unit.
• Connect the wire firmly to the connector to ensure
operation of the louver.
3. Attach the electric parts box cover by reversing the
procedure of detaching.
• Make sure that no wire is caught between the electric
parts box and the cover.
• Make sure that no wire is caught between the indoor
unit and the ceiling panel.
The height of the indoor unit can be
adjusted from the corner holes of the
ceiling panel without detaching the
panel, provided that the levelness of
the indoor unit and the drain pipe are
not affected.
After the adjustment of height, tighten
the nuts of the indoor unit securely.
– 3 –
(Fig. 1)
Panel fixing screw
Ceiling panel
(Fig. 2)
Rectangular hole of
indoor unit
Push when releasing
Movable hook
(Fig. 3)
Panel inner frame
Panel fixing bracket
Hole
Panel fixing screw
Lift the panel inner frame to make
the screw head visible.
(Fig. 5)
Tighten the panel fixing screw.
Wire Connection (For illustrative purpose, the
orientation of the indoor unit is not the actual
orientation.)
Electric parts
box cover
Two screws
Clamper
CN510
Drain pipe
Rectangular holes of
indoor unit
Electric parts box
Refrigerant pipe
Marking: Drain pipe side
louver motor wire
Marking: Refrigerant pipe side
Movable hook
(Fig. 4)
Push the panel fixing bracket
securely.
(Fig. 6)
No gap
Indoor unit
Bottom of ceiling
Ceiling panel
louver motor wire
Pass the wire through the clamper
as illustrated.
EN
3-EN
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