DOE's pool-pump documents distinguish control of running time from measurement of performance. The direct final rule published January 18, 2017 specified timers for integral cartridge-filter and integral sand-filter pumps manufactured starting July 19, 2021. The timer could be part of the pump or a separate component shipped with it; its defined shutoff period was no longer than ten hours. [2016-31666][2016-21310]

The September 20, 2016 test-procedure proposal described a weighted energy factor, or WEF. It combined water flow relative to input power at different load points, with the choice of points depending on pump type and operating speeds. That proposal excluded integral cartridge-filter and sand-filter pumps from its testing scope. The proposed metric was not a test of the timer requirement. [2016-31666][2016-21310]

For pumps distributed with freeze-protection controls, the January text specified disabled protection or user-adjustable defaults. The ceilings were 40 degrees Fahrenheit for dry-bulb air temperature, one hour of running before rechecking temperature, and half the maximum available motor speed. These numerical limits described starting settings, not guaranteed protection against damage. [2016-31666][2016-21310]

The direct final timetable remained conditional: May 18, 2017 effectiveness and July 19, 2021 compliance could be displaced by withdrawal following qualifying adverse comments due May 8. The older proposal supplies historical measurement context, not proof its details became final unchanged. Together, the documents explain two distinct mechanisms without establishing actual electricity savings. [2016-31666][2016-21310]

Source documents

  1. Energy Conservation Program: Energy Conservation Standards for Dedicated-Purpose Pool Pumpshttps://www.govinfo.gov/content/pkg/FR-2017-01-18/html/2016-31666.htm
  2. Energy Conservation Program: Test Procedure for Dedicated-Purpose Pool Pumpshttps://www.govinfo.gov/content/pkg/FR-2016-09-20/html/2016-21310.htm