@jmaguire1: Some of the verification tests are failing. I think the units are now right, but the cooling COP calculated is 6.86 in the example model. I think this is a pretty big change. The test is here:

Another failure is an additional 10 feet in the borefield depth per borehole, which I do not think is that big of a deal.

@afontani: Yeah, it is indeed a much bigger deal than I thought, and suggests we would have been really substantially underestimating the impact of the fan/pump and doing net to gross calculations:

For reference, this is the base-hvac-ground-to-air-heat-pump, with a nominal COP of 3.6 and EER of 16.6. Maybe it's worth talking to someone like Jeff Munk and being sure we're doing things as intended before making such a big change? I just worry we have some other issue here with such a large difference in results. I'd like to feel more confident we've definitely done this right and then not have to revisit this again.

I think the units are now right, but the cooling COP calculated is 6.86 in the example model. I think this is a pretty big change.

Note that it was originally 5.36 but decreased to 4.87 in the previous bugfix attempt; see here.