The ornamental design for a frameunit, as shown and described.
FIG. 1 is a left perspective view of a frame unit showing my new design;
FIG. 2 is a right perspective view of a frame unit;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a top plan view thereof.
The broken line showing of a compressor, evaporator, pipes, and cooling coils is included for the purpose of illustrating environmental structure and forms no part of the claimed design.