Adaptive furnace control using analog temperature sensing

Details Adaptive furnace control using analog temperature sensing Adaptive furnace control using analog temperature sensing

1992-11-09

1993-09-28

Wayner, William E.

Automatic temperature and humidity regulation

Hot-air furnace

Air and fire control

62186, F23N 300

Patent

active

052480836

ABSTRACT:
An adaptive furnace controller utilizing analog temperature sensing to maintain a constant preselected temperature in the heat exchanger during operation. The adaptive furnace control measuring heat exchanger temperature and regulating a controllable valve to adjust burner firing rate, thereby holding heat exchanger operating temperature constant. Further, creating constant on/off times based on the previous cycle on/off times of the furnace by regulating circulation blower speed. By increasing blower speeds to shorten "on" times or decreasing blower speeds to increase "on" times, and thereby achieving optimum cycle times.

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