Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Try using the "AnalyticalSolution" for the ZoneAirHeatBalanceAlgorithm object.
I have found this to be much more reliable than the numeric approaches. Although the "ThirdOrderBackwardDifference" is the default. The language in the Engineering Reference suggests that the "AnalyticalSolution" avoids the problems with truncation error.
