2
1. Preparation before installation of ceiling panel
(1) Position check of indoor unit
1. Confirm the position of the indoor unit according to the Installation
Manual.
2. Check whether size of the ceiling opening hole is in the following range
or not. 595 mm × 595 mm to 660 mm × 660 mm
3. Using the installation gauge which is attached to the indoor unit package,
determine position of the indoor unit against the ceiling surface. If the
position of the indoor unit is not correct, air leak, water leak (dewing), or
malfunction of the flap is caused.
• Never put the ceiling panel downward, lean it, or leave it on a
projection to avoid a damage on the surface of the ceiling
panel.
• Do not apply an excessive force on the flap when hanging it
tentatively to the indoor unit. (It causes a trouble on the flap.)
2. Installation to indoor unit
(1) Removal of suction grille
1. Slide the hook which comes forth from the suction
grille and open the suction grille.
2 Take off hook of the fall-preventive strap from the
ceiling panel.
• Do not take off screws of the fall-preventive
strap at the suction grille side.
3. Remove the hinge section of the suction grille from
the ceiling panel while the suction grille is opened.
(2) Removal of adjust corner cap
1. Turn counterclockwise the screw of the suction port
corner of the ceiling panel to loosen it, and then
float the edge of the adjust corner cap.
2. Slide the adjust corner cap toward direction of the
arrow mark
Q
and then remove it. (Fig.1)
(Fig. 1)
Keep the range within 23 to 28 mm,
otherwise, a trouble is caused.
23 to 28
Indoor unit
Ceiling
surface
Ceiling opening hole size
Flap
Hook of suction grille
Ceiling panel
Suction grille
Hook hole of ceiling panel
Hook of
fall-preventive strap
Ceiling panel
Adjust corner cap
1
