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Water heater hot water temperature unable to meet target temperature #9165

@matthew-larson

Description

@matthew-larson

Issue overview

Warnings are being generated when the target temperature matches the hot water supply temperature because due to losses in the system, the hot water temperature would fall just short of the target temperature by 1-2C. The water heater is not supplying the correct hot water temperature and is underestimating the water heater energy use.

60C Water Heater Setpoint Temperature
image

Details

Some additional details for this issue (if relevant):

  • EnergyPlus v9.6

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  • Defect file added (list location of defect file here)
  • Ticket added to Pivotal for defect (development team task)
  • Pull request created (the pull request will have additional tasks related to reviewing changes that fix this defect)

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DefectIncludes code to repair a defect in EnergyPlusNotIDDChangeCode does not impact IDD (can be merged after IO freeze)

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