The ornamental design for a refrigeratingunit, as shown and described.
FIG. 1 is a perspective view of a refrigerating unit showing the new design;
FIG. 2 is a front view of the refrigerating unit shown in FIG. 1;
FIG. 3 is a right side view of the refrigerating unit shown in FIG. 1;
FIG. 4 is a left side view of the refrigerating unit shown in FIG. 1;
FIG. 5 is a top view of the refrigerating unit shown in FIG. 1;
FIG. 6 is a bottom view of the refrigerating unit shown in FIG. 1; and,
FIG. 7 is a rear view of the refrigerating unit shown in FIG. 1.
The broken lines showing of the bottom grates in FIG. 6 and the rear grate in FIG. 7 are for illustrative purposes only and forms no part of the claimed design.