Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Revision history [back]

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.