Electronic thermostat with heat anticipation and control method

Details Electronic thermostat with heat anticipation and control method Electronic thermostat with heat anticipation and control method

1979-08-13

1981-06-02

Wayner, William E.

Automatic temperature and humidity regulation

With timing element

Timer other than clock

236 1R, 307117, F16C 124, F23N 520

Patent

active

042706939

ABSTRACT:
An electronic thermostat includes digital electronic apparatus for simulating heat anticipation so that in operation, the temperature of the room being heated or cooled does not exhibit excessive overshoot. A sensor generates a signal representative of temperature in the room. In a preferred embodiment, the system compares the temperature signal with a composite set point signal. The composite set point signal is generated by a data processor to effect the following system characteristics: (1) when the temperature signal remains constant and is equal to the set point, the system can cycle approximately six times an hour with a fifty percent duty cycle; (2) a relatively small change in temperature or set point will modify the duty cycle substantially; and (3) if the temperature and set point signals differ by more than a predetermined amount, the system will lock on or off, depending on which is greater.

REFERENCES:
patent: 3942718 (1976-03-01), Palmieri
patent: 4193006 (1980-03-01), Kabat et al.

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