Double duct changeover HVAC system
US6725914B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 5, 2001 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Aug 16, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F3/0444
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention is a double duct changeover HVAC system, which uses two conditioned air sources to deliver air into two main duct systems. The two main duct systems are routed toward the exterior exposures of a building, and converge into a single duct which is routed to heating and cooling zones. Exterior exposure dampers control the mix of air so that the correct air temperature is sent to each exterior exposure. A damper at each heating and cooling zone controls the air flow into each heating and cooling zone, and VAV logic is used to deliver the correct air temperature and air flow to each heating and cooling zone of a building.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.