Temperature control system for control of a multiplant environmental unit
US4702305A · kind A · utility
33Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1987 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Mar 30, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1919
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature control system for a multiplant environmental unit utilizing a heat pump and auxiliary heat is specifically disclosed. This system is operated by a microcomputer based real time operated thermostat which provides night setback and day setup in an energy efficient manner. The efficient operation is accomplished by having separate heat pump and auxiliary heat ramp rates that can be operated together in parallel in a first mode of operation, and operated separately in a second mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.