The ornamental design for an airconditioninghousing, as shown and described.
FIG. 1 is a perspective view from the top-left of the housing;
FIG. 2 is a front view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a perspective view from the bottom-right thereof.
The broken lines and the areas within them are included for the purpose of illustrating portions of the air conditioning housing that form no part of the claimed design.