System and methods for controlling a water heater
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United States of America Patent
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-
Nov 6, 2007
Grant Date -
Aug 10, 2006
app pub date -
Feb 7, 2005
filing date -
Feb 7, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control for a water heater is provided that comprises a pressure switch for sensing a predetermined level of airflow sufficient for maintaining proper burner operation, and a temperature sensing means for sensing the temperature of the water in the tank. The control further comprises a processor for controlling the operation of the burner to maintain the water temperature above a predetermined value. When the processor receives a signal from the pressure switch indicating an insufficient level of airflow, the processor shuts down the burner and subsequently attempts to restart the burner. The processor will also lock-out further burner operation after a predetermined number of consecutive shut downs occurs before the water is heated to a desired temperature during a single call for heating.
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Family
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Cited Art Landscape
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