EdgeStar AP550Z - Manual (Page 2)

4. Once the filter frame has been removed, remove the lower portion of the
back of the unit:
Once the screws
have been removed,
this portion comes
right off
Remove
these four
screws
5. Now remove the left side of the unit (left, assuming you are facing the rear
of the unit)
Step A.
Remove these two screws from
the rear of the unit