Inline Equipment Components - Rectangular Attenuated Bend r
- Last UpdatedJan 27, 2026
- 2 minute read
The task of creating an HVAC Component is initiated from the HVAC Window.
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Select Inline Plant Equipment in the Categories dropdown list.
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Select RECTANGULAR Attenuated Bend r in the Available Type dropdown list to display the Attenuated Bend window:

You are is required to input the following dimensions:
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Name(Ref)
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Duct width AA
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Duct depth AB
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Duct width LA
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Arrive Throat
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Leave Throat
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Inside Radius
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Back Radius
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Arri Back Fillet
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PL to Back Fillet
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Arri Thrt Fillet
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PL to Thrt Fillet
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To visualize how the dimensions equate to the actual piece of HVAC, select Picture to display a detailed drawing for Inline Plant Equipment Catalog - Rectangular Attenuated Bend.
Note: The fields will be pre-populated with default dimensions. These dimensions are governed by the details defined in the HVAC Catalog.
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Select Transpose width/depth to exchange Duct Width AA dimension with the Duct Width AB dimension.
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Specify a type of joint to use for the Arrjoint (Arrive Joint) and Leajoint (Leave joint). For a detailed description, see Create / Modify HVAC Components.
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After selecting the type of joint to use for the Arrjoint and Leajoint, enter the Leave Direction.
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In the Leave Direction specify the axis that should be used. Valid axes are E (East), N (North), U (Up), -E (negative East), -N (negative North) or -U (Negative Up). X, Y, Z, -X, -Y or -Z.
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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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Select Defaults to reset all the fields back to when the Attenuated Bend window was opened.
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Select Fit to orientate the Attenuated Bend to automatically match the outlet (p-leave) of the previous piece of HVAC to the inlet (p-arrive) of the next piece.
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Select OK to create the Attenuated Bend component and close the Attenuated Bend Window. You will be returned to the HVAC Window.
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Select Cancel to discard all the field changes and close the Attenuated Bend window.