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Method and apparatus for energy-efficient temperature-based systems management

  • US RE46,219 E1
  • Filed: 08/26/2013
  • Issued: 11/29/2016
  • Est. Priority Date: 02/22/2008
  • Status: Active Grant
First Claim
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1. An apparatus for energy efficient operation of a pool pump and heater system, comprising:

  • a pump;

    a control system configured to receive water temperature data from water in a pool serviced by said pump;

    andand a heater that heats said water, said control system calculating a start time to turn on said heater and said pump such that said water will be at a desired temperature at a desired future time, said control system calculating filtration times to run said pump before said start time, said filtration times computed based at least in part on said start time and at least in part on a desired average of filtration time operating over a time period, said control system running said pump during said filtration times, said control system activating said heater at said start timea specified average amount of time over a specified time window so that said pump is operated to provide filtering of the water while taking into account periods of pump operation to run the heater, wherein the specified time window is a sliding window such that the control system operates said pump for at least a specified amount of time over a time window that includes a plurality of days in the past and one or more days projected into the future, and wherein when said control system has deferred operation of the pump entirely for at least one past day within the specified time window, said control system increases the time the pump is to be operated to at least partially catch up on the filtration time missed during deferred operation of the pump in order to meet the specified average amount of time.

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