2 Unit installation
RCI - 4-way cassette
SMGB0099 rev.0 - 12/2016
22
 
For ceiling already completed with panels
Indoor 
unit
Attach this side of the checking 
pattern to the inner side of the 
opening of the ceiling
Attach this side of the 
checking pattern to the lower 
side of the unit
Indoor unit
Attach this side of 
the checking pattern 
to the ceiling panel
Checking 
pattern
Check the height of 
the ceiling at each 
corner of the unit
Check the dimension 
of opening at each 
side of the unit
Attach this side 
of the checking 
pattern to the outer 
side of the unit
Ceiling 
panel
Checking 
pattern
 
Ceiling not completed with panels yet
Pattern paper for installation
Dimension 
for opening
Unit
Suspension bolt
Surface of ceiling
Pattern board for installation
Screw (M6)
Dimension 
for opening
Tighten the nuts of the suspension brackets after the adjustment is completed. Apply LOCK-TIGHT paint to the bolts and 
nuts in order to prevent them from loosening. If not done, abnormal noises or sounds may occur and the indoor unit may 
come loose.
2.1.3  Air panel installation: P-N23NA2
 
Removing Air Intake Grille from Air Panel
1  Push both ends of knobs at the air inlet grille toward the arrow direction, open the air inlet grille until the angle of 
approximately 45° from the air panel surface. After lifting the air inlet grille keeping it inclined, draw the air inlet grille 
forward. (Remove the lament tape (4 portions) xing the air lter).
45°
Knob
Air inlet grille
Corner pocket 
cover (4 portions)
Air panel
Supporting string
2  Lift the grille keeping it inclined.
3  Draw the grille towards the open space after lifting.