Control for a variable air volume temperature conditioning system-outdoor air economizer
US4379484A · kind A · utility
54Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1981 |
| Grant date | Apr 12, 1983 |
| Priority date | — |
| Expiry date | Jan 12, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/22
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A solid-state control for a variable air volume (VAV) temperature conditioning system adapted to control a plurality of refrigerant cooling stages, and in particular, to modulate an outdoor air economizer. The control includes both an outdoor ambient air and a discharge air temperature sensor. Further included are means for selectively modulating the economizer either in response to the deviation of the discharge air temperature from a setpoint or in response to the discharge air temperature, depending upon the relative magnitudes of the outdoor and discharge air temperature, and upon one or more stages of cooling being energized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.