Water heater having a waterway changeover control apparatus and method for operating the same
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United States of America Patent
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Feb 20, 2018
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app pub date -
Sep 3, 2015
filing date -
Oct 15, 2010
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Abstract
A water heating system includes a first water heater having a first heating source of a first type, and a second water heater having a second heating source of a second type. The system further includes a valve having a first interface connected to the cold water source, a second interface connected to the first cold water inlet of the first water heater, a third interface connected to a second hot water outlet of the second water heater, and a fourth interface connected to the first hot water outlet of the first water heater. A motor positions the valve to one of at least three positions Finally, the system also includes a control circuit including a temperature sensor near the first hot water outlet of the first water heater, and a controller configured to control the motor based on a sensed temperature by the temperature sensor.
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