Shell And Tube Heat Exchanger Revit Family Work ((full)) Direct

You tried to set TubeLength to 0 or a negative number. Fix: In Family Types , set a minimum value. Go to Parameters > Edit Formula . Type: TubeLength = if(TubeLength < 300 mm, 300 mm, TubeLength)

A BIM model is a database, not just a drawing. Ensure your family includes: Fouling Factor Pressure Drop (Shell & Tube sides) shell and tube heat exchanger revit family work

Here’s a quick workflow I’ve refined: You tried to set TubeLength to 0 or a negative number

If you are in the early design phase, building a flexible "Type Catalog" family is better. This allows you to swap between a 2-pass and 4-pass configuration or adjust shell diameters as the load requirements change. 2. Essential Geometry and Nested Components shell and tube heat exchanger revit family work