Branch Connectors Components - Flat Oval ‘B’ Square f
- 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 Branch Connectors in the Categories drop-down list and then FLAT OVAL ‘B’ Boot f in the Available Type drop-down list to display the Oval ‘B’ Square Brco window:

The user is required to input the following dimensions:
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Brco width
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Brco depth
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MAIN width LA
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MAIN depth LB
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Brco Length
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Dist from Leave
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B offset
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Brco Extension
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Fixing to Duct
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Male Collar
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Inner Extension
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To visualize how the dimensions equate to the actual piece of HVAC, click Picture to display a detailed drawing for Branch Connectors Catalog Element - Flat Oval ‘B’ Square.
Note: The fields will be pre-populated with default dimensions. These dimensions are governed by the details defined in the HVAC Catalog. The Fixing to Duct joint default is joint defined in the HVAC Catalog but can be change by the user to the required joint.
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Click Transpose width/depth to exchange Brco width dimension with Brco depth dimension or to exchange MAIN width LA dimension with MAIN depth LB dimension.
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Specify a type of joint to use for the Brco Jnt (Branch Connector Joint). Refer to Create / Modify HVAC Components for a detailed description.
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After selecting the type of joint to use for the Brco Jnt, the user must enter the Brco Direction.
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In Brco Direction specify 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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Click Connect (default when Create is selected) - connects the piece of HVAC to the previous one.
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Click 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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Click Defaults to reset all the fields back to when the Oval ‘B’ Square Brco window was opened.
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Click Fit To Next to orientate the Oval ‘B’ Square Brco to automatically fit this piece of HVAC to the next piece.
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Click OK to create the Oval ‘B’ Square Brco component and close the Oval ‘B’ Square Brco Window. The user will be returned to the HVAC Window.
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Click Cancel to discard all field changes and close the Oval ‘B’ Square Brco window.