Gas valve controller
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Nov 16, 2006
app pub date -
Apr 13, 2006
filing date -
Apr 13, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A gas valve (22) control system (10) for a heater includes a burner (26) and a valve (22) that has a high flow stage and a low flow stage. The valve (22) supplies fuel to the burner (26) in the high flow stage until the burner (26) is ignited. While operating in the high flow stage, an inducer (24) that supplies combustion air to the burner (26) operates in a high speed stage. The valve (22) and the inducer (24) are controlled by a controller (12). A timer (28) is used to coordinate the valve (22) and the inducer (24) such that after a predetermined amount of time, the valve (22) switches to a low flow stage and the inducer (24) switches to a low speed stage. This is to provide the burner (26) with more fuel and combustion air while igniting and to reduce condensation in the heater.
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Family
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Cited Art Landscape
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