Apparatus and method for providing failsafe supplemental heat _r

Details Apparatus and method for providing failsafe supplemental heat _r Apparatus and method for providing failsafe supplemental heat _r

1982-03-29

1984-11-20

Cline, William R.

Heat exchange

Regenerator

Checker brick structure

165 25, 165 29, 237 2B, F25B 1300, F25B 2900

Patent

active

044833881

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.

REFERENCES:
patent: 3318372 (1967-05-01), Shell
patent: 4147203 (1979-04-01), Rayfield
patent: 4158383 (1979-06-01), Rayfield
patent: 4270597 (1981-06-01), Denny
patent: 4311190 (1982-01-01), Walley
patent: 4335847 (1982-06-01), Levine
patent: 4352452 (1982-10-01), Shimada et al.

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