Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Try looking at these threads below. It looks like your tdb is really low so it may be an error with an envelope input somewhere, such as in walkin coolers.
https://unmethours.com/question/9400/error-psyrhoairfnpbtdbw-rhoair-density-of-air-is-calculated-0-217716/
https://unmethours.com/question/12143/psyrhoairfnpbtdbw-rhoair-density-of-air-is-calculated-0/
