Refrigeration – Automatic control – Time or program actuator
Patent
1980-03-12
1981-09-15
Wayner, William E.
Refrigeration
Automatic control
Time or program actuator
236 46R, 307 39, 361 22, H02J 100, F25B 4900
Patent
active
042889901
ABSTRACT:
An apparatus is disclosed for activating a thermostat for an air conditioning or heating system. The apparatus comprises a control circuit and a controllable switch connected to activate and deactivate the thermostat controlling the air conditioning or heating system. A timing circuit provides a first timing period in which the thermostat is deactivated in addition to providing a second timing period to activate the thermostat. The control also includes a circuit for deactivating the thermostat for a period of time in the event the compressor terminates operation for any reason. An optional occupancy sensor increases the time of deactivation of the thermostat during periods of non-use of the area being air conditioned or heated. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
REFERENCES:
patent: 3011718 (1961-12-01), Joerren
patent: 3946574 (1976-03-01), Portera
patent: 4027171 (1977-05-01), Browder et al.
patent: 4107941 (1978-08-01), Hamilton
patent: 4142375 (1979-03-01), Abe et al.
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