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Mistake & recovery · #135

Installing a mixed air plenum without leaving access for the mixing damper actuators

3rd YearSystems & Controls

Every damper actuator must be accessible for inspection, adjustment, and replacement. Before closing in any plenum, verify that access doors are sized and…

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Safer field move

Every damper actuator must be accessible for inspection, adjustment, and replacement. Before closing in any plenum, verify that access doors are sized and located to reach every actuator without removing ductwork.

Ask Foreman

Can you verify this before I keep going? I’m looking at: Installing a mixed air plenum without leaving access for the mixing damper actuators. 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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