diff --git a/Buildings/Experimental/DHC/Networks/Combined/BaseClasses/PipeAutosize.mo b/Buildings/Experimental/DHC/Networks/Combined/BaseClasses/PipeAutosize.mo index b5cec59431c..32098ccf89f 100644 --- a/Buildings/Experimental/DHC/Networks/Combined/BaseClasses/PipeAutosize.mo +++ b/Buildings/Experimental/DHC/Networks/Combined/BaseClasses/PipeAutosize.mo @@ -7,7 +7,7 @@ model PipeAutosize "Pipe model parameterized with pressure drop per pipe length" parameter Modelica.Units.SI.Length dh( fixed=false, start=0.01, - min=0.01) "Hydraulic diameter (assuming a round cross section area)"; + min=0.001) "Hydraulic diameter (assuming a round cross section area)"; parameter Real dp_length_nominal(final unit="Pa/m") = 250 "Pressure drop per pipe length at nominal flow rate"; @@ -101,7 +101,8 @@ depends on dp_nominal and must be evaluated at compile time.