9 Servicing
RCI-(1.0-6.0)FSN4 - 4-way cassette
SMGB0099 rev.0 - 12/2016
248
9.1  RCI-(1.0-6.0)FSN4 - 4-way cassette
9.1.1  Removing Air Filter and Air Inlet Grille
1  The air lter is attached inside the air inlet grille. While pushing both ends of knobs at the air inlet grille toward the 
arrow direction, open the air inlet grille.
2  Hold the lower side of the air inlet grille keeping it inclined. Remove the hooks of air lter from the air inlet grille and 
remove the air lter.
3  Remove the supporting string from the air panel. After lifting the air inlet grille keeping it inclined, draw the air inlet 
grille forward to remove.
4  When attaching the air inlet grille, the supporting string shall be attached to the air panel.
! CAUTION
TURN OFF all power source switches.
Knob
Air Inlet Grille
Hook
Hook
Air Filter
ir Inlet Grille
Air inlet grille
Air inlet grille
Air lter
Knob
Hook
Hook
Upper part of lter
Lower part of lter
Supporting string
9.1.2  Removing Electrical Box Cover
1  The electrical box appears when opening the air inlet grille. Remove the xing screw for electrical box cover and open 
the electrical box.
2  The electrical box cover can hook onto the electrical box during the maintenance.
! CAUTION
Pay attention not to fall the electrical box cover.
Electrical Box
Screw
Electrical box