Static field route #432

What do I do when branch takeoff facing wrong direction?

Airflow/TAB Impacts From InstallationV136 field-polished — distinct TAB/airflow answer

Verify branch direction before sealing. A takeoff facing the wrong way can starve the branch or create noise/turbulence.

Field checklist

This branch takeoff appears to face [direction] on a [airflow direction] main. Do you want this orientation verified before I seal it?

Do not assume any branch direction works as long as it connects.

Branch orientation changes how air enters the branch and can affect noise, CFM, and balancing.

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