Airflow-confirming HVAC systems and methods with variable speed blower
US9692347B2 · kind B2 · utility
2Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2014 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Nov 14, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Systems and methods involve controlling a variable-speed blower in a heating, ventilating, and air conditioning (HVAC) system to ensure the setting of a blower-proving switch to confirm airflow in a building. In one instance, a method involves ramping up the variable-speed blower so that the associated static pressure reaches a making point pressure of the blower-proving switch and then reducing the power to a desired power level. The method may also include maintaining the power level above a breaking point pressure. Other systems and methods are presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.