5  Tighten the long screws until touching the stopper to the 
xing plate. Check to ensure that the distance between the 
xing plate undersurface and the corner panel undersurface 
is 26mm.
6  When tightening the long screws to prevent air leakage 
and to be no gap between the false ceiling surface and 
the indoor unit, the inner circumference of the air panel 
(the position to attach the air inlet grille) may be slightly 
deformed. However, it is not abnormality. 
26
12
+5
0
False ceiling
Indoor unit
Fixing plate 
(indoor unit)
Long screw
Corner 
panel
! CAUTION
•  If tighten  long  screws insufcient,  may  cause something  wrong  as 
below.
Air Leakage
Smudge
Dewing
•  If  any  gap  has  even  though  tighten  long  screws  sufcient,  
readjust the height of indoor unit.
No gap shall exist
•  It’s able to adjust the indoor unit height by using wrench from the 
corner pocket.
Wrench
•  Too considerable adjustment of height cause dewing from drain-pan.
•  Do not turn the air louver by hand. If moved, the louver mechanism 
would be damaged. 
6.4  ATTACHMENT OF CORNER COVER
Attach the corner covers after the air panel is mounted 
completely.
a.  Catch the band at the rear side of the corner cover onto 
the projection at the air panel as shown.
b.  Insert and push the xing hooks (2 portions) at Ⓐ to the 
air panel and insert and push the xing hook (1 portion) 
at Ⓑ to the air panel.
Corner with sensor
Projection
Band
Fixing hook
Fixing hook
A
A
B
B
Corner without sensor
B
B
A
A
Projection
Band
Fixing hook
Fixing 
hook
INSTALLATION
PMML0569 rev.2 - 07/20235
EN