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BEopt 2.8 Error: multiple assignments for zone equipment -- what is it?

asked 2018-05-30 17:08:00 -0500

bwilbur gravatar image

updated 2018-05-30 17:10:43 -0500

I'm getting this fatal error in BEopt 2.8 and am not sure what it means:

Error: * Severe * GetZoneEquipmentData1: ZoneHVAC:EquipmentList = UNFINISHEDBASEMENT ZONE EQUIPMENT 5/28/2018 3:04 PM: 31.xml: Error: * ~~~ * ...multiple assignments for Zone Equipment Heating or No-Load Sequence=1, must be 1-1 correspondence between sequence assignments and number of equipments.

I get this error when I run either an ASHP or MSHP in a multi-unit (2) building, for either a finished or unfinished basement. I do not get it if I use a gas furnace, or if I I run an ASHP/MSHP in a single-family building.

https://www.dropbox.com/s/x5vigo0eh1l...

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answered 2018-05-30 17:48:13 -0500

Thanks for the bug report. It appears to be specific to having a heat pump water heater in a multifamily building with, e.g., a basement. The fix is pretty trivial. Please download the updated file, rename to energyplus.py, and save it to your C:\Program Files (x86)\NREL\BEopt_2.8.0\Modeling\ directory (overriding the file that is there). Then re-run the simulations.

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Asked: 2018-05-30 17:08:00 -0500

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Last updated: May 30