Electrical system for controlling the operation of a heat exchan

Details Electrical system for controlling the operation of a heat exchan Electrical system for controlling the operation of a heat exchan

1992-09-22

1994-01-11

Wayner, William E.

Automatic temperature and humidity regulation

With timing element

Timer other than clock

307 66, 365229, H02J 700

Patent

active

052773639

ABSTRACT:
An electrical system for controlling the operation of a heat exchanger unit, thermostat therefor and methods of making the same are provided, the system having a first electrical power source, the system having an electronic control logic unit operatively interconnected to the first power source to operate the heat exchanger unit in relation to data selectively entered into the electronic control logic unit and being maintained by the electronic control logic unit as long as the electronic control logic unit is receiving electric power, the system having a second electrical power source for supplying electrical power to the electronic control logic unit to maintain the data thereof when the first electrical power source ceases to supply electrical current to the electronic control logic unit even for a relatively long period of time, the second electrical power source comprising a capacitor unit.

REFERENCES:
patent: 3948441 (1976-04-01), Perkins et al.
patent: 4431134 (1984-02-01), Hendricks et al.
patent: 4701693 (1987-10-01), Nishimura
patent: 4905187 (1990-02-01), Beyers, Jr.
patent: 4963811 (1990-10-01), Weber
patent: 5102042 (1992-04-01), Hart
patent: 5107918 (1992-04-01), McFarlane et al.
patent: 5111058 (1992-05-01), Martin
Capacitors have been used for short-term electrical power back-up.

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