Water heater and method of controlling a water heater
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United States of America Patent
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May 23, 2017
Grant Date -
Sep 8, 2016
app pub date -
Mar 6, 2015
filing date -
Mar 6, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A water heater is provided which comprises a water storage tank made of enameled metal, an anode electrode (e.g. an anode rod) at least partly inside the water storage tank and a corrosion protection unit configured to impress current into the anode to provide a corrosion protection for the water storage tank. The corrosion protection unit further comprises a microprocessor configured to control the impressing of the current to the anode electrode during impression process cycles and to control the operation of the corrosion protection. The corrosion protection unit furthermore comprises a battery unit or an accumulator unit configured to supply energy to the microprocessor during grid power outages. The microprocessor is configured to activate the power saving mode during grid power outages during which an amount of impressed current and/or an impression process cycle is reduced.
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Family
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