You can use the HVAC.xls workbook to designate HVAC parts as splits. When you use an HVAC part as a split, you must specify whether its ends are rectangular or round flat flanges with the Rect_FlatFlange, RectFlatFlg, Round_FlatFlange, or RoundFlatFlg prefixes. After you bulkload the workbook, you can select the part as a split part when you click Insert Split and then open the Duct Split Feature Properties dialog box.
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Open the [Product Folder]\CatalogData\Bulkload\DataFiles\Hvac workbook.
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Open the sheet that contains the part to use as a split.
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Copy the sheet, and then add one of the following prefixes to the name of the copied sheet:
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Rect_FlatFlange or RectFlatFlg for a rectangular flat flange.
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Round_FlatFlange or RoundFlatFlg for a round flat flange.
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For the part to use as a split, set its ComponentType to 2, and then define its PartNumber as a unique value.
You can define multiple parts as split components.
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(Optional) Edit the UserClassName and OccClassName values, as required.
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In the R-ClassNodeDescribes sheet, add the new sheet name to the RelationDestination column, and then define RelationSource as Components.
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In the HvacSpec sheet, add the new sheet name to the PartNumber column in the specification tables as required.
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Configure the edited sheets for bulkload, and then save and bulkload the HVAC workbook.
The HVAC part is now available to select as a split part in Smart 3D.