Samsung Electronics DVM Series Technical Manual page 190

3) Attach the panel to the indoor unit, then push it to the right or
left to secure the panel. Narrow side of hole on the panel
must be inserted between the screw and the indoor unit.
4) Adjust the location of panel so that there is no gap between
the panel and ceiling, then tighten the screw completely.
5) Install air filters bracket(s). Each air filter needs its own bracket.
020/032/040
Fix 1 bracket to the remaining hole on the panel with the supplied screw.
052/072
Fix 2 brackets to the remaining two holes on right and left side of
the panel with screws.
6) Reinstall the front grille.
The installation of front grille is the reverse order of disassembly.
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