Energyplus water heater sizing -99999.0
In the energyplus html report, I noticed that the Equipment Summary section reports Input for service water heating as "-99999.0". What does this mean?
The water heater is modeled as autosized. But in other models that I have water heater autosized, this report will show an autosized input rate not -99999.0.
Comments
@xchen are you running just a design day simulation, or both design days plus a run period (usually annual simulation) using the EPW weather file?
Both design days and a run period using a epw weather file.
I looked up the EnergyPlus repo on github and it seems to be a flag for autosize. https://github.com/NREL/EnergyPlus/bl... // Test for #9001: Make sure BackupElementCapacity is reset when equal to DataSizing::Autosize which is -99999.0 // or a negative number because this results in negative electricity consumption.