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Before Installing the Ceiling Panel
(1)  Remove the air-intake grille and air filter from the ceiling 
panel.
a)  Remove the 2 screws on the latch of the air-intake 
grille. (Fig. 2-14) (Reattach the air-intake grille after 
installation of the ceiling panel.)
Fig. 2-14
b)  Slide the air-intake grille catches in the direction shown 
by the arrows   to open the grille. (Fig. 2-15)
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Fig. 2-15
c)  With the air-intake grille opened, remove the grille 
hinge from the ceiling panel by sliding it in the direction 
shown by the arrow  . (Fig. 2-16)
2
Fig. 2-16 
(2)  Removing the corner cover.
a)  Slide the latches in the direction of the arrow   to 
disconnect the hinges (3 locations). Then, remove 
the air-intake grille in the direction of the arrow  .
(Fig. 2-17)
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Fig. 2-17
Installing the Ceiling 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)  Hang the temporary latches on the inside of the ceiling 
panel to the receptacle on the unit to temporarily attach 
the ceiling panel in place. (Fig. 2-18)
   HOW TO INSTALL THE CEILING PANEL
 4-Way Cassette 60 × 60 Type (Y1 Type)
Checking the unit position
(1)  Check that the ceiling hole is within this range:
600 × 600 mm
(2)  Confirm that the positions of the indoor unit and the ceiling 
are as shown in the diagram. If the positions of the ceiling 
surface and unit do not match, air leakage, water leakage, 
flap operation failure, or other problems may occur.
CAUTION
  Never place the panel face-down. Either hang it 
vertically or place it on top of a projecting object. 
Placing it face-down will damage the surface. (Fig. 2-12)
 must be within the range of 13 – 18 mm. (Fig. 2-12)
If not within this range, malfunction or other trouble may 
occur.
A
Main unit
Ceiling side
Ceiling opening 
dimension
Fig. 2-12 
  Do not touch the flap or apply force to it. (Fig. 2-13)
(This may cause flap malfunction.)
Flap
Fig. 2-13    
Air-intake grille
Air-intake grille hinge
Ceiling panel
Corner cover
Ceiling panel
Corner cover
Push
Screw
Latch
SM830211-07PAC-i.indb392SM830211-07PAC-i.indb392 2013/09/1722:48:252013/09/1722:48:25