Daikin FH15CBV1L Technical Manual page 47

Cover Lock Grille (The moving part protection for user direct touching)
Cover lock grille must be installed as the Figure E below.
If the unit need to be service, steps below shall be followed:
1. Confirm that the unit had been switched off before servicing the unit.
2. Use screwdriver to unlock the screw on the cover lock grille.
3. Remove the cover lock grille and open the intake grille for the service purpose.
4. Install the intake grille and screw the cover lock grille after service and make sure the unit is
proper install.
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Intake Grille
Cover Lock Grille
Screw
Figure E