Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I suggest you try FixedInitial. If fans/pumps are off and all pressures are initialized to the default, then the model should not have fast transients. However, if fans/pumps are on -- and the solver happens to have problems converging with this setting -- then try one of the other settings. In the past years solvers got much better in solving these initialization problems.
