Removing The Air Inlet Grille; Removing The Corner Panel - Mitsubishi Heavy Industries FDCA Series Technical Manual

4) Removing the air inlet grille

1 Raise up the notched portion of the air inlet grille and open it.
2 With the air inlet grille open, remove the air inlet grille hinge from the decorator panel.

5) Removing the corner panel

• Take out the screw in the corner, then lift up the corner panel in the arrow direction and remove it.
Corner panel
6) Panel installation
1 Screw in lightly 2 of the 4 air conditioner unit suspension bolts in opposite corners from each other by about 5 mm.
(Fasten the drain piping side and the opposite corner temporarily.)
2 Hang the panel on the two suspension bolts to install it temporarily.
3 Install the two remaining suspension bolts and tighten all four of the bolts.
Notes (1) : If the suspension bolts are not tightened sufficiently, it
could cause the following trouble, so tighten the bolts
securely.
Air leakage
Air leakage at ceiling
Dirt collects
Note (3) : The unit's installation height can be minutely adjusted with the decorator panel as is as long as the indoor unit is level and drain piping are
not affected.
Screw
Condensation forms,
condensation drips
88
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Note (2) : If there is still a gap between the ceiling and the decorator
panel even after the suspension bolts are tightened, readjust
the height of the indoor unit.
Adjust so there is no gap.
Carry out minute adjustments by turning the indoor unit's
nut using a spanner or similar tool from the corner opening.