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Hot water heater systems and methods for controlling electronic mixing valves

  • US 10,209,721 B2
  • Filed: 08/18/2016
  • Issued: 02/19/2019
  • Est. Priority Date: 08/18/2016
  • Status: Active Grant
First Claim
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1. A method of controlling an electronic mixing valve for a hot water heater, the electronic mixing valve providing a flow of water in a mixed output line, the method comprising:

  • monitoring an input temperature of water supplied to the valve from a cold water supply;

    storing a minimum of the input temperature;

    looking up a predefined position limit associated with the stored minimum in a lookup table;

    setting a position limit of the valve to the predefined position limit;

    andoperating the valve within a range constrained by the position limit of the valve;

    wherein the position limit of the valve is greater than a fully closed position of the valve and less than a fully open position of the valve.

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