Patent ID: 7144320

Claim:
An air distribution arrangement for rack-mounted equipment that generates heat, said arrangement comprising a cabinet for housing the rack-mounted equipment, the rack-mounted equipment having one or more air inlet openings, said arrangement comprising plenum structure including side panels, and a top panel, said top panel and said side panels being comprised of complementary sections that are adjustable to permit adjustment of the depth of the plenum, a door affixed to the cabinet and cooperating with the rack-mounted equipment and plenum structure to define a plenum, an air box in the cabinet communicating with the plenum and with the ambient, inlet fan means in the air box for supplying ambient air at a rate of at least 850 cfm to the plenum, whereby ambient air may be supplied to the rack-mounted equipment for cooling same only from the plenum, exhaust means for communicating with the ambient, whereby the air for cooling the rack-mounted equipment can be returned to the ambient.