Low airflow blamed on unit before install checked
Check the install before blaming equipment. Low airflow often comes from a blocked branch, kinked flex, closed damper, wrong device, or leakage.
Watch out
- Do not tell TAB or the engineer it is “the unit” before checking your install.
Check
- Start at the problem diffuser/device and trace back toward the main/VAV.
- Check flex, boot, collar, branch, damper, device tag, and seal.
- Compare to nearby similar rooms if available.
- Document the first restriction or mismatch you find.
- Ask before claiming the AHU/VAV is the problem.
Steps
- Start at the problem diffuser/device and trace back toward the main/VAV.
- Check flex, boot, collar, branch, damper, device tag, and seal.
- Compare to nearby similar rooms if available.
- Document the first restriction or mismatch you find.
- Ask before claiming the AHU/VAV is the problem.
Say this to your foreman
Before we blame the unit, can I verify the branch/flex/damper/device serving [room] and show you what I find?
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