HVAC Static Pressure Verification Checklist PDF

Full QC Checklist+

Verify measurement method, diagnosing the result, available static pressure/duct design inputs, and professional follow-up.

✓20 Inspection Points

✓4 Verification Categories

✓Inputs & Measurement Method+

Calculator mode (Diagnose Existing System vs. Design New Ductwork) matches the actual task
Return and supply static pressure readings taken with a manometer at the correct probe locations, not guessed or read at the grille
Readings entered as positive magnitudes, not signed values
Equipment's rated (nameplate) static pressure taken from the actual data plate or spec sheet, not left at the generic 0.5 in. w.c. default
Blower/fan speed tap or setting noted at the time of the reading
Readings taken with the system running normally, not during startup/ramp, and with all registers/dampers in their normal position

✓Diagnosing the Result (Diagnostic Mode)+

Percent-of-rated classification (Good/Acceptable/Marginal/High) reviewed and understood before concluding the system is fine
If classified Marginal or High, the optional component breakdown (filter/coil/accessories) entered to identify which component is driving the restriction
A flagged filter share investigated first
The "unaccounted" portion of TESP considered when no single named component explains a high reading
TESP re-measured after any corrective action to confirm the fix actually reduced pressure, not just assumed

✓Available Static Pressure & Duct Design (Design Mode)+

Filter and coil/heat-exchanger pressure drops entered from actual manufacturer data at the system's real design CFM, not generic guesses
Total effective duct length includes both the longest run's straight length AND the equivalent length of its fittings
Confirmed the Available Static Pressure result is a positive, usable number, not the "exceeds rated" warning
Resulting friction rate cross-checked against the Duct Size Calculator's velocity-based sizing for the same runs
Any in-line accessory pressure drop (humidifier, UV light, electronic air cleaner) included, not overlooked

✓Follow-Up & Professional Verification+

A licensed HVAC technician's own manometer readings obtained for any system showing Marginal or High classification
For gas furnace systems, high static pressure investigated as a possible contributor to reduced airflow across the heat exchanger
Understood this is a planning/diagnostic estimate, not a substitute for a complete ACCA Manual D duct design
Reading, date, and system condition documented for future comparison

Inspection Notes+

Use the latest approved drawings, specifications, and site measurements.

Complete all critical checks before proceeding to the next work stage.

Record deviations and confirm rectification where required.

Inspection Notes

Use the latest approved drawings, specifications, and site measurements.

Complete all critical checks before proceeding to the next work stage.

Record deviations and confirm rectification where required.

Use it after collecting the project inputs and again before approving or closing the relevant work stage.

No. It supports verification but does not replace approved drawings, specifications, codes, manufacturer requirements, or professional inspection.