Dear TRNSYS-users, I'm struggling to create some wall types for a multizone building. I get the message: "error creating the wall transfer function coefficients: stability criteria not fullfilled check layer definitions (thickness, ratio of conductivity/density)" Of course, I have already re-checked the layer definitions. This message appears for wall types with quite a massive layer (e.g. bricks 0.53m) and an additional insulation (e.g. up to 0.16m). Also it appears when modelling the uppermost slab with a layer of wood (e.g. 0.20m) and insulation (e.g. 0.16m). Unfortunatelly I couldn't figure out yet how to create these kind of wall types without having the error message. I appreciate any suggestions, Michael
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