Mistake & recovery · #041

Not knowing the difference between supply air, return air, and outside air

1st YearSystems & Controls

Study the air handling unit diagram until these paths are clear. Supply leaves the AHU to the space, return comes back from the space, outside air is fres…

Search Field Rescue Ask Foreman Open in mistake guide

Safer field move

Study the air handling unit diagram until these paths are clear. Supply leaves the AHU to the space, return comes back from the space, outside air is fresh intake. Your ductwork serves all three.

Ask Foreman

Can you verify this before I keep going? I’m looking at: Not knowing the difference between supply air, return air, and outside air. 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.

Not knowing the difference between supply air, return air, and outside air

Safer field move

Ask Foreman

Do not

Related mistakes

Related apprentice questions