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NREL / OpenStudio

OpenStudio is a cross-platform collection of software tools to support whole building energy modeling using EnergyPlus and advanced daylight analysis using Radiance.
https://www.openstudio.net/
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Error trying to Autosize OS:WaterHeater:Mixed: Wrap WaterHeater:Sizing in OpenStudio #669

Closed DavidGoldwasser closed 3 years ago

DavidGoldwasser commented 10 years ago

When I drop in a water heater it starts as 100 gallon tank volume, and a capacity of about 2,800,000 Btu/hr.

The capacity seems large, when I tried to run after changing it to autosize I get the following error. Am I doing something wrong, or is there no way to autosize this object?

* Warning * Water heater named OS:WATERHEATER:MIXEDhas heater capacity set to AUTOSIZE but it is missing associated WaterHeater:Sizing object * Fatal * Errors found in water heater input. Preceding condition causes termination.

kbenne commented 10 years ago

No I don't think you are doing anything wrong. To be honest I didn't know there was a water heater sizing object.

MatthewSteen commented 9 years ago

I'm seeing this in 1.6.0 and 1.6.3.

jmarrec commented 8 years ago

+1 in 1.10.2

DavidGoldwasser commented 8 years ago

@kbenne any thoughts on this?

kbenne commented 8 years ago

My thought is we need to at WaterHeaterSizing, but I honestly don't have it in my queue yet.

ckirney commented 6 years ago

Could you remove the autosizing option from the water heater tank volume and tank capacity in the interface until you have time to fix the problem (which I think is telling EnergyPlus which of the six autosizing options to use)?