3
INSTALLATION OF INDOOR UNIT
Concealed duct type
Ledge ceiling concealed duct type
NOTES:
• Opening area of the return grille should be larger than
one of the return port of the indoor unit.
Restriction to installation
1. Installation space
• As shown in the figure, keep space around the indoor unit.
100mm
or more
C channel
Air filter
Returning
Return air panel
Indoor unit
Air filter
Return air panel
Returning
300mm
or more
7
Supply chamber
Supply grille
Supplying
200mm (diam.)
round duct
Supplying
Indoor unit
Supplying
Supply grille
Supply
chamber
Supplying
200mm (diam.)
round duct
Inner ceiling
100mm or more
300mm
or more