|Open the HVAC CATfct file and follow the above procedure
to add HVAC CATPart nozzles.
Select an HVAC shape under HVAC Part
(either Round Part, Rectangular Part, Flat Oval
Part, Radius Corner Part), and click the Create
Subclass button to create a new subclass.
In the Create Subclass dialog box, enter HVACNozzle
in the Class Name field.
Because the new HVACNozzle class is a subclass of the HVAC
part, it will automatically inherit all the attributes that are defined on
the HVAC Part super class. You can add other attributes that
are specific to HVACNozzle if needed.
Save the HVAC CATfct file.