Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
In the fields for the ZoneHVAC:IdealLoadsAirSystem object, you need to specify both a sensible heat recovery effectiveness and a design specification outdoor air object name so that you have outdoor air exchange for the heat recovery to act on.
If you are doing this in OpenStudio, there is a measure posted in this question on the forum to edit these objects in your model.
