This section describes the options available in the Fittings group in the Design Master HVAC Options dialog box.
Radius for elbows: The default radius of radius elbow fittings. The radius can be set for individual fittings by manually inserting the fitting using the Radius Elbow command.
Angle of transitions: The angle of duct transitions.
Turning vanes on square elbows and wyes: Whether square elbows and wyes include turning vanes by default. Turning vanes can be toggled for individual fittings by manually inserting the fitting using the Square Elbow or Wye / Bullnose Tee commands.