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Mistake & recovery · #043

Not understanding why static pressure matters in a duct system

1st YearSystems & Controls

Static pressure is the resistance the fan must overcome to move air. High resistance from undersized duct, too many fittings, or dirty filters starves out…

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Safer field move

Static pressure is the resistance the fan must overcome to move air. High resistance from undersized duct, too many fittings, or dirty filters starves outlets of airflow. Every design decision you make affects it.

Ask Foreman

Can you verify this before I keep going? I’m looking at: Not understanding why static pressure matters in a duct system. What’s the approved correction for this job?

Do not

Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.

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