| 摘要 |
An air handling unit is disclosed which comprises a compact unitary assembly of a cooling unit and an exhaust unit. The cooling unit, either an evaporative cooler or a refrigeration unit, delivers cooled air via a delivery duct to a room space. An exhaust system includes a duct and blower communicating with atmosphere and the attic or dead air space to evacuate or exhaust hot air from this space. In alternate embodiments, a clutch arrangement permits selective actuation of the exhaust and cooling units.
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