FIG. 1 is a front right perspective view of an air conditioner showing a first embodiment of our new design;
FIG. 2 is a front left perspective view of the air conditioner shown in FIG. 1;
FIG. 3 is a front elevational view of the air conditioner shown in FIG. 1;
FIG. 4 is a rear elevational view of the air conditioner shown in FIG. 1;
FIG. 5 is a left-side elevational view of the air conditioner shown in FIG. 1;
FIG. 6 is a right-side elevational view of the air conditioner shown in FIG. 1;
FIG. 7 is a top plan view of the air conditioner shown in FIG. 1;
FIG. 8 is a bottom plan view of the air conditioner shown in FIG. 1;
FIG. 9 is an enlarged view taken from portion labeled 9 in FIG. 1;
FIG. 10 is an enlarged view taken from portion labeled 10 in FIG. 2;
FIG. 11 is an enlarged view taken from portion labeled 11 in FIG. 3;
FIG. 12 is a front right perspective view of an air conditioner showing a second embodiment of our new design;
FIG. 13 is a front left perspective view of the air conditioner shown in FIG. 12;
FIG. 14 is a front elevational view of the air conditioner shown in FIG. 12;
FIG. 15 is a rear elevational view of the air conditioner shown in FIG. 12;
FIG. 16 is a left-side elevational view of the air conditioner shown in FIG. 12;
FIG. 17 is a right-side elevational view of the air conditioner shown in FIG. 12;
FIG. 18 is a top plan view of the air conditioner shown in FIG. 12;
FIG. 19 is a bottom plan view of the air conditioner shown in FIG. 12;
FIG. 20 is an enlarged view taken from portion labeled 20 in FIG. 12;
FIG. 21 is an enlarged view taken from portion labeled 21 in FIG. 13;
FIG. 22 is an enlarged view taken from portion labeled 22 in FIG. 14;
FIG. 23 is a front right perspective view of an air conditioner showing a third embodiment of our new design;
FIG. 24 is a front left perspective view of the air conditioner shown in FIG. 23;
FIG. 25 is a front elevational view of the air conditioner shown in FIG. 23;
FIG. 26 is a rear elevational view of the air conditioner shown in FIG. 23;
FIG. 27 is a left-side elevational view of the air conditioner shown in FIG. 23;
FIG. 28 is a right-side elevational view of the air conditioner shown in FIG. 23;
FIG. 29 is a top plan view of the air conditioner shown in FIG. 23;
FIG. 30 is a bottom plan view of the air conditioner shown in FIG. 23;
FIG. 31 is an enlarged view taken from portion labeled 31 in FIG. 23;
FIG. 32 is an enlarged view taken from portion labeled 32 in FIG. 24; and,
FIG. 33 is an enlarged view taken from portion labeled 33 in FIG. 25.
The broken lines in FIGS. 1, 2, 3, 9, 10, 11, 12, 13, 14, 20, 21, 22, 23, 24, 25, 31, 32, and 33 depicting the boundary of the enlarged views form no part of the claimed design. The remaining broken lines shown in the drawings illustrate portions of the air conditioner that form no part of the claimed design.