Mitsubishi Electric MLZ-KP09NA2 Notice D'installation page 13

6) Seal the gap between the optional part and the electrical box with tape, etc.
7) Reinstall the indoor control board and the electrical cover (1), (2).
8) Reinstall the grille.
Fix the connecting cable at the prescribed position securely.
Incorrect installation may cause electric shock, fire, and/ or malfunction.
WARNING
connecting cable
seal
EN-12