Abstract: A high efficiency Tier IV cooling system architecture and cooling unit for fault tolerant computer room air conditioner systems incorporates a cooling unit which comprises a cold water heat exchange system and a series coupled chilled water heat exchange system. A return air input is coupled to the cold water and chilled water heat exchange systems and a supply air output provides the return air cooled through at least one of the cold water and chilled water heat exchange systems.

Abstract: A playing surface for playing a kick ball game between opposing teams divided into team zones and including a goal at each end through which the ball is to be kicked by one or the other team and wherein the playing surface is enclosed by a fabric type mesh net to contain the ball within the playing surface as well as to provide a surface off of which the ball may be ricocheted as part of the strategy of play; and complete apparatus for such a game provided in the form of a kit.