M - Advanced Airflow & Specialized Tests
Troubleshooting Low Airflow
What You'll Learn How to identify low airflow from measureQuick data and field observations A systematic five-step diagnostic approach to find the cause of low airflow How to use the TESP budget to isolate which component is creating the restriction ...
Airflow Documentation Best Practices
What You'll Learn What airflow data to record during every test Why proper airflow documentation matters for baselines, warranties, and quality verification How the airflow_source field in measureQuick tracks measurement method How to document ...
Nozzle Pressure Testing
What You'll Learn What a calibrated nozzle is and the measurement principle behind it When to use nozzle testing vs. TrueFlow vs. duct traverse Equipment required for nozzle testing Step-by-step setup and measurement procedure How to read and record ...
Airflow Imbalance Analysis
What You'll Learn What airflow imbalance means and why it matters for comfort and system performance How to measure room-by-room airflow using a capture hood or the NCI AirMaxx test How to calculate delivery percentage per room and identify problem ...
Return Air Plenum Testing
What You'll Learn Why return-side airflow is harder to measure than supply-side Methods for measuring airflow in a return air plenum How to use filter pressure drop for airflow estimation How to account for multiple return paths when measuring total ...
Duct Traverse Measurement
What You'll Learn What a duct traverse is and when it is the right method for measuring airflow How to set up a traverse grid pattern using the equal-area method The difference between round and rectangular duct traverse procedures How to calculate ...
Return Duct Airflow Measurement
What You'll Learn Why measuring return airflow specifically matters for detecting duct leakage How to use the TrueFlow Grid in the return filter slot for total return airflow How to interpret a discrepancy between return and supply airflow Asymmetric ...
Ductless/Mini-Split Airflow
What You'll Learn Why airflow measurement matters on ductless and mini-split systems The challenge: no ductwork means no filter slot for a TrueFlow Grid How to use a capture hood on wall cassettes and ceiling cassettes How measureQuick handles ...
TrueFlow Grid Measurement Theory
What You'll Learn How the TEC TrueFlow Grid measures airflow using pressure differential across a known resistance Why the zero procedure matters and how to perform it correctly Why TrueFlow is more accurate than temperature-split or fan-curve ...