For modeling multistage ground ground source heat pumps (GSHP) use the attached spreadsheet to calculate the average annual efficiency from the hourly results.
The hourly results can be found by clicking the clock icon under the Building Design menu on in each Project.
The hourly results should be generated using a single GSHP at the full load specifications. To model the GSHP, create one piece of equipment at the full load with the cooling EER and heating COP from the spreadsheet.
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