Hi folks,
In double-checking the savings numbers from ventilation air heat recovery on my straight-forward VAV system, I noticed that the heating savings are less than half what I'd expect (based on back-of-the-envelope QC). I'm now out of ideas where to look for input errors, and am rather frustrated to see this happen on a pretty standard VAV system...

Would someone here have a moment and take a look, please (when running it, please use parametric run 4)? I'd appreciate any feedback.

Thanks much!!!

Peter Reppe, LEED AP, CPHC
Energy Analyst

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