Place air terminals in Revit

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In Revit, once you have created system zones, spaces, and an air system, you can add components to the system.

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In this exercise, you place air terminals and set their space parameters for more accurate analysis results.

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To begin, open the Mechanical Ground Floor RCP view.

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When devices such as air terminals are placed in a view,

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information associated with them is used in calculating loads for the spaces (rooms) in a duct system.

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The rooms keep a running total of the amount of supply, return, and exhaust air supplied or removed from a room,

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which allows you to select the correct air terminal sizes.

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Now, to place an air terminal, on the ribbon, Systems tab, HVAC panel, click Air Terminal.

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Then, from the Type Selector, select a face-based family type.

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Choose 12" x 12" Supply Diffuser – Square – Hosted.

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When you do, a Placement panel appears in the contextual ribbon.

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And, in the model view, the cursor shows a cannot place symbol, unless you move it over an appropriate host element.

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On the contextual ribbon, in the Placement panel, select Place on Face.

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Then, click the ceiling to select it as the host to place the air terminal.

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Then, in the Type Selector, choose the 24 x 24 Face 12 x 12 Connection Supply Diffuser.

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Note that this type of diffuser is a non-hosted family, so a Placement panel does not appear in your contextual ribbon.

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For this example, set the Level to Ground Floor, and the Elevation from Level to 9'-0".

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Then, click the ceiling to place your air terminal.

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Next, on the Modify ribbon, in the Modify panel, click Align and align the air terminal to the ceiling grid.

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Select the air terminal, and then in the Properties palette,

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deselect the arrow parameters to remove the arrows from the view.

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Select the space that the air terminals have been placed in.

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Pay close attention to the Actual Supply Airflow parameter, because it sums the flows of the air terminals you have within your space.

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Also, be aware that if the space is not accounting for the flow of the air terminal,

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but your terminals are placed correctly, you can adjust the room calculation point so it is inside the space.

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To do this, select the air terminal, and then, in the contextual ribbon, click Edit Family.

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As you have seen, placing air terminals and setting their space parameters in Revit is a quick and easy process.