Circular Nozzle
- Last UpdatedJan 19, 2026
- 2 minute read
The task of creating an HVAC Component is initiated from the HVAC Window.
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From the HVAC Window, select PDMS Equipment Nozzle in the Categories dropdown list.
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Select Circular Nozzle in the Available Type dropdown list to display the HVAC Equipment Nozzle window:

You are required to input the following dimensions:
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Name(Ref)
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Select a Duct/Nozzle Shape, using the Duct/Nozzle Shape dropdown list
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Duct width
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Duct depth
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Overall Length
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End Flange Width
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End Flange Length
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Flange Thickness
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To visualize how the dimensions equate to the actual piece of HVAC, select Picture to display a detailed drawing for HVAC Equipment Nozzles Catalog Element.
Note: The fields will be pre-populated with default dimensions. These dimensions are governed by the details defined in the HVAC Catalog. The Arrive Extension default is auto but can be changed by the user to a required dimension.
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Specify a type of joint to use for the Arrjoint (Arrive Joint). For a detailed description, see Create / Modify HVAC Components.
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In the Connect list, select Connect or Unchanged:
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Select Connect (default when Create is selected) - connects the piece of HVAC to the previous one.
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Select Unchanged (default when Modify is selected) - positions the piece of HVAC at the co-ordinates 0.00.
Note: Unchanged is usually used, when Modify is selected, it does not connect the piece of HVAC but positions it at 0.00, in effect in a floating position.
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Modify Orientation
You can modify the orientation of the existing nozzle (see HVAC Attributes - Orientation).
Modify Position
You can modify the position of the existing nozzle (see HVAC Attributes - Position).
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Select Defaults to reset all the fields back to when the HVAC Equipment Nozzle window was opened.
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Select Apply to create the HVAC Equipment Nozzle component and close the HVAC Equipment Nozzle Window. You will be returned to the HVAC Window.
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Select Dismiss to discard all the field changes and close the HVAC Equipment Nozzle window.