The ornamental design for a packaged terminalairconditionerinsert, as shown and described.
FIG. 1 is a perspective view from the left and top;
FIG. 2 is a left side view;
FIG. 3 is a right side view;
FIG. 4 is a rear view;
FIG. 5 is a front view;
FIG. 6 is a top view; and,
FIG. 7 is a bottom view.
The broken-line disclosure in the views is understood the represent portions of the article in which the claimed design is embodied, but which forms no part of the claimed design.