Apparatus and method for providing failsafe supplemental heat _regulation in an air conditioning control
US4483388A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1982 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | Mar 29, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Apparatus and a method for providing failsafe supplemental heat operation of an air conditioning control are disclosed. Operating power to a microprocessor control is discontinued when the air conditioning unit is placed in a supplemental heat mode by the user. The microprocessor control is so arranged that appropriate connections are made to operate a supplemental heat source in response to a first stage heating need being sensed by the thermostat when operating power to the microprocessor control is discontinued. Under normal conditions multiple stage heating operation is provided with a supplemental heat source being operated under control of a programmed microprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.