[TRNSYS-users] COMSIS-TRNSYS Iteration no attained

[PAUL COALES]

My Type 56 building has no infiltration or ventilation defined.  Nor is there any "coupling air flow" between the zones ( In TRNBuild, for each zone, coupling air flow = 0 )  However, I get the following warning/error:

"Convergenceof COMIS-TRNSYS iteration not attained within 50max number of internal iterations."

What is it trying to do; there is no coupling air flow between the zones defined.

Thanks
Paul