Circular Air Extract Hood

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

Select Extra Inline Equipment in the Categories drop-down list and then Circular Air Extract Hood in the Available Type drop-down list to display the Air Extract Hood window:

The Air Extract Hood window default is a standard stock size, but can be changed by you using one of the following methods:

Standard Stock Sizes

In the Name(Ref) field, input the name of the HVAC component.

Note:
The fields will be pre-populated with default dimensions. These dimensions are governed by the details defined in the HVAC Catalog. Mid Section Height and Arrive Taper Height can be changed by you.

To choose from the standard stock sizes available from the HVAC Catalog, in the Stock Size drop-down list, click the required size for the HVAC component.

Non Standard Stock Sizes (Special)

If you chose not to use a standard stock piece of HVAC, from the Stock Size drop-down list, click Special.

You are required to input the following dimensions:

• Name(Ref)

• Duct Diameter

• Top Diameter

• Overall Diameter

• Cowl Height (H)

• Mid Section Height

• Arrive Taper Height

• Arrive Extension

To visualize how the dimensions equate to the actual piece of HVAC, click Picture to display a detailed drawing for Circular Air Extract Hood.

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

Specify a type of joint to use for the Arrive Joint. Refer to Create/Modify HVAC Component for a detailed description.

In the Position 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.

Click Defaults to reset all the fields back to when the Air Extract Hood window was opened.

Click Fit to orientate the Air Extract Hood to automatically match the outlet (p-leave) of the previous piece of HVAC to the inlet (p-arrive) of the next piece.

Click OK to create the Air Extract Hood component and close the Air Extract Hood Window. You will be returned to the HVAC Window.

Click Cancel to discard all the field changes and close the Air Extract Hood window.