Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kwok Wai Tham0
Chandra Sekhar0
David Kok Wai Cheong0
Nyuk Hien Wong0
Date of Patent
June 13, 2006
0Patent Application Number
108603910
Date Filed
June 3, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An HVAC system has two variable-air-volume (VAV) systems, a first VAV system for moving fresh air and a second VAV system for moving recycled air. Both the fresh air and recycled air are cooled and dehumidified by a single heat-exchanging coil. The fresh and recycled air streams travel independently in separate ducts until the air streams reach a remotely located mixing box where the air streams mix and ventilate into a room or zone of a building. The HVAC system uses carbon dioxide and temperature sensors in order to regulate the flow of fresh and recycled air to various mixing boxes throughout the building.
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