Patent ID: 8006512

Claim:
An air conditioner embedded in the ceiling of an air conditioned room, comprising: a face panel including a panel main body being formed by an alternating sequence of a plurality of side parts and a plurality of corner parts, a plurality of side part outlets with one being disposed along each of said side parts, each of said plurality of side part outlets having a horizontal flap being rotatably supported in each of said plurality of side part outlets in a longitudinal direction of each of said plurality of side part outlets, each of said horizontal flaps being configured to oscillate about an axis in the longitudinal direction to enable wind direction of the air current blown from each of said plurality of side part outlets, a plurality of corner part outlets being disposed in said corner parts, each of said corner part outlets being formed so that air is blown out from each of said corner part outlets in a fixed direction, and an inlet surrounded by all of said side parts; a box shaped casing main body having an open lower end; and a drain pan attached to the lower end of said casing main body, said drain pan including an inlet hole arranged to communicate with said inlet of said face panel, side part outlet holes arranged to communicate with said side part outlets of said face panel, and corner part outlet holes arranged to communicate with said corner part outlets of said face panel, a fan being disposed inside said casing and configured to take air from said inlet into said casing, and blow said air from said side part outlets and said corner part outlets into said air conditioned room, each of said corner part outlet holes and a corresponding one of said side part outlet holes adjacent to a corresponding one of said corner part outlet holes having a dimensional relationship therebetween of D /( L 1 W 1 +S 2 ) 0.5 >0.15 where D is a distance between a first proximate part, which is a most proximate part of each of said corner part outlet holes to a corresponding one of said side part outlet holes, and a second proximate part, which is a most proximate part of each of said side part outlet holes to a corresponding one of said corner part outlet, L 1 is a length of each of said side part outlet holes in a direction along an outer circumferential edge of each of said side parts, W 1 is a width of each of said side part outlet holes in a direction orthogonal to the outer circumferential edge of a corresponding one of said side parts, and S 2 is an opening area of each of said corner part outlet holes.