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