Flat Oval Components - Stiffening

The task of creating an HVAC Component is initiated from the HVAC Window.

1. Select Flat Oval in the Categories drop-down list and then Stiffening in the Available Type drop-down list to display the Stiffening window:

   

   The user is required to input the following dimensions:

   • Stiffener width

   • Stiffener depth

   • Duct width LA

   • Duct width LB

   • Spec Requirement

   • Number of Sides

   • Face from Leave

   • A offset

   • B offset

   • Angle

   • Stiffener Face

   • Other Web

   • Web Thickness

2. To visualize how the dimensions equate to the actual piece of HVAC, click Picture to display a detailed drawing for Flat Oval Components - Stiffening.

   Note: The fields will be pre-populated with default dimensions. These dimensions are governed by the details defined in the HVAC Catalog.

   The application has automatically calculated the required number of stiffeners to support the CE (using the current detailing specification and other parameters). The number is displayed in the Spec Requirement box.

   The number of sides of the CE is automatically input into the Number of Sides box, in this case as the CE is a rectangular straight the number of sides is input as 4.

   Note: Stiffening flanges are configured to suit each different component.

3. Click OK the Spec Requirement to confirm the automatically generated number of stiffeners is compatible with the detailing specification.

4. If this is not required, click Q Spec Req, to change the automatically generated number of stiffeners.

5. After selecting the Spec Requirement the user must enter the Aoff Direction.

6. In the Aoff Direction enter the direction for the Aoffset relative to the Point of Origin. Valid directions are E (East), N (North), U (Up), -E (negative East), -N (negative North) or -U (Negative Up). X, Y, Z, -X, -Y or -Z.

7. In the Connect list, select Connect or Unchanged:

   • Click Connect (default when Create is selected) - connects the piece of HVAC to the previous one.

   • Click Unchanged (default when Modify is selected) - positions the component at the co-ordinates 0.00.

   Note: Unchanged is usually used, when Modify is selected, it does not connect the component but positions it at 0.00, in effect in a floating position.

8. Click Defaults to reset all the fields back to when the Stiffening window was opened.

9. Click OK to create the Stiffening Flanges and close the Stiffening window.

   The user will be returned to the HVAC Window.

10. Click Cancel to discard all field changes and close the Stiffening window.