Heating furnace using self-calibration mode
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United States of America Patent
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Sep 15, 2020
Grant Date -
Jul 27, 2017
app pub date -
Jan 26, 2016
filing date -
Jan 26, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A heating control method includes determining a first speed for an air circulation fan that corresponds with a temperature set point using a temperature map that maps temperatures to speeds of the air circulation fan and operating the air circulation fan at the first speed and a heating unit in a first configuration with at least one active burner from a plurality of burners where less than all of the burners are active when the heating unit is in the first configuration. The method further includes measuring a first temperature while operating the air circulation fan at the first speed, determining a temperature difference between the first temperature and the temperature set point, comparing the temperature difference to a temperature difference threshold, and updating the temperature map to map the first speed to the first temperature when the temperature difference is greater than the temperature difference threshold.
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