MIXING VALVE WITH ANTI-SCALING FEATURES AND METHODS OF OPERATION
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United States of America Patent
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Oct 21, 2021
app pub date -
Apr 17, 2020
filing date -
Apr 17, 2020
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Abstract
A mixing valve for a water heater appliance includes a valve body that defines a mixing chamber, the mixing chamber being in fluid communication with a cold water inlet conduit and a hot water inlet conduit. A plunger valve is mounted within the valve body and is moveable along a translation axis to regulate a flow of water from the hot water inlet conduit and the cold water inlet conduit. A controller periodically initiates a cleaning cycle wherein the plunger valve is moved through a full range of motion (e.g., full hot to full cold). The cleaning cycle may only be performed if there is no water flowing through the mixing valve, e.g., as determined by temperature sensor measurements.
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