[Equest-users] Strange ERV Error and Results

[The Watt Doctors - Dave Weigel]

Hi Group,

My system is a simple VAV. When I click to add an ERV, it ties up my machine completely for about 3-4 minutes and then throws up the error for “maximum number of tracked changes exceeded.”  But it accepts the ERV and lets me configure it.  This results in a vast decrease in heating energy, but a large increase in cooling energy. Weather is Atlanta.  I don’t understand why cooling energy would increase with the simple addition of an ERV.

Any thoughts?  

Thanks!

Dave
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