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An air removal unit configured for removing exhaust air from an equipment rack or enclosure includes multiple fans to achieve a high airflow capacity while defining a compact and portable structure. The unit removably installs along an exhaust side of an equipment rack or enclosure to provide capabi

An air removal unit configured for removing exhaust air from an equipment rack or enclosure includes multiple fans to achieve a high airflow capacity while defining a compact and portable structure. The unit removably installs along an exhaust side of an equipment rack or enclosure to provide capabilities for managing the thermal output of equipment, such as servers, CPUs, communications, internetworking and other types of equipment. The unit includes one or more upper fan modules and one or more lower fan modules positioned below the upper fan modules. The upper and the lower fan modules are arranged in a stacked configuration along the depth of the unit with the lower fan modules positioned in an offset orientation relative to the upper fan modules. The stacked configuration and the offset orientation of the fan modules help to incorporate multiple fans with the unit while maintaining the compact and portable design. The unit is further configured to serve as a door of an equipment rack or enclosure to thereby provide access to the unit and the rack or enclosure during operation. The unit can be incorporated with a ventilation system or a cooling air system associated with an equipment room or data center.

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1. A system for removing exhaust air from an equipment rack configured to support electronic equipment, the system comprising: a frame assembly, separate from the equipment rack, configured to be removably coupled to a side of the equipment rack, the frame assembly including a frame member and at le

1. A system for removing exhaust air from an equipment rack configured to support electronic equipment, the system comprising: a frame assembly, separate from the equipment rack, configured to be removably coupled to a side of the equipment rack, the frame assembly including a frame member and at least one pivot connector; andan air removal unit configured to be coupled to the at least one pivot connector of the frame assembly to hingedly attach the air removal unit to the equipment rack, the air removal unit including a housing configured to block at least a portion of the side of the equipment rack, the housing defining an interior chamber and including at a front panel, an upper back panel, a lower back panel, a lower exhaust module front panel positioned behind the front panel, and two side walls,an upper exhaust module disposed within the interior chamber, the upper exhaust module including at least one upper fan module removably secured to the upper back panel of the housing, the upper fan module including a fan coupled with a first internal air plenum defined by the front panel, the side walls and the upper back panel,a lower exhaust module disposed within the interior chamber below the upper exhaust module, the lower exhaust module including at least one lower fan module removably secured to the lower back panel of the housing, the lower fan module including a fan coupled with a second internal air plenum defined by the lower exhaust module front panel, the side walls and the lower back panel, the lower back panel and the lower exhaust module front panel extending along parallel planes that are at an acute angle with respect to a generally vertical plane defined by the upper back panel to accommodate a width of the upper fan module, andan exhaust port defined along the top of the housing, the first and the second internal air plenums being configured to terminate at the exhaust port. 2. The system of claim 1, further comprising an exhaust duct provided at the top of the housing of the air removal unit and in fluid communication with the exhaust port of the air removal unit, the exhaust duct being configured to exhaust air vented from the air removal unit through the exhaust port and to direct the exhaust air away from the air removal unit. 3. The system of claim 1, wherein the upper exhaust module and the lower exhaust module are disposed in a stacked configuration along the depth of the air removal unit with the lower fan module positioned in an offset orientation relative to the upper fan module. 4. The system of claim 1, wherein each fan is disposed such that when the air removal unit is mounted to an exhaust side of the equipment rack, an air intake side of each fan is in fluid communication with an interior of the equipment rack. 5. The system of claim 1, wherein the housing is constructed and arranged such that the air removal unit forms at least part of a door of the equipment rack when the air removal unit is installed to the equipment rack. 6. The system of claim 1, wherein the frame assembly is configured along a first side of the equipment rack to removably connect to a first side of the housing. 7. The system of claim 6, wherein the frame assembly is connected to the housing to permit the air removal unit to pivot toward and away from the equipment rack in a door-like manner when coupled to the at least one pivot connector. 8. The system of claim 1, wherein the frame assembly includes a pair of adjacent parallel longitudinal members, each longitudinal member constructed and arranged to telescopically extend or retract to adjust the height of the frame assembly. 9. The system of claim 1, wherein the frame assembly includes at least one frame member, the at least one frame member including a plurality of openings defined along a length of the at least one frame member, the plurality of openings being configured to align with openings define along each side of the equipment rack. 10. The system of claim 9, wherein the frame assembly further includes a plurality of fasteners to secure the at least one frame member of the frame assembly to the equipment rack. 11. The system of claim 1, wherein the frame assembly defines a width such that the frame assembly is configured to connect to at least one of: (i) a standard-dimensioned 19-inch or 23-inch rack, and (ii) a non-standard dimensioned rack or enclosure. 12. The system of claim 1, wherein the frame assembly includes a lower hinge support having a pivot connector of the at least one pivot connector. 13. The system of claim 12, wherein the frame assembly further includes an upper hinge receiving plate having a pivot connector of the at least one pivot connector. 14. The system of claim 12, wherein the pivot connector of the at least one pivot connector includes a pin. 15. The system of claim 1, further comprising a blanking panel constructed and arranged to removably connect to a bottom portion of the air removal unit and to blank-off an exposed area disposed below the air removal unit when the air removal unit is installed to the equipment rack to minimize loss of exhaust air from the air removal unit.