Abstract: An air scavenging system for removing heated air from a computer room, comprises at least one air intake port in communication with a first duct, a plenum chamber having at least one air input to which the first duct is connected, and an air output from the plenum chamber to a return duct for an air conditioner unit which supplies conditioned air to the computer room. The air flow is induced by an electrically driven fan at the output side of the plenum chamber. At least one air intake port is horizontally oriented, and is positioned at any position in the computer room. There are at least as many inputs to the plenum as there are ducts connected to it. At least one air intake port may be vertically oriented and is mounted to a rack which is hotter than the other racks.

Abstract: A scalable electrical power distribution system for air conditioned computer rooms has an uninterruptible power supply and at least one rack mounted power distribution unit to supply conditioned power to the critical loads. If the power demand of the rack mounted critical loads connected to any rack mounted power distribution unit exceeds the power rating of that unit, a further rack mounted power distribution unit may be placed in another cabinet so as to distribute conditioned electrical power to additional rack mounted critical loads. The power distribution system is scalable as to the number of rack mounted power distribution units that may be installed in the computer room; it reduces initial capital costs, and eliminates cable congestion below the raised floor of the computer room.