Airflow, Diagnostic, Heating, NCI Article Library
2015 Midwest Residential Energy Conference hosted by HBAL & RESNET at The Lexington Convention Center, Tuesday March 10, 2015 in Lexington, Ky. Photo by Mark Mahan Airside vs. Refrigerant Performance Measurement When it comes to performance measurement and air...
Airflow, Diagnostic, Measurement, NCI Article Library, Performance-Based HVAC
When it comes to performance measurement of air conditioning systems, most master technicians gravitate to one of two measurement approaches: the airside or the refrigerant side. On one hand, refrigeration experts will challenge anyone who questions pressure and...
NCI Article Library, Testing and Balancing
Nearly all grille manufacturers publish a ‘free area' for each grille or register. The question is, are these free area factors meant to be used as a correction or Ak factor? Are these numbers meant to correct for the change in air velocity as it passes through a...
NCI Article Library, Spotlights
COMFORT TEAM Arizona Air Conditioning & Heating Specialist In 1996 Bryce Johnson hosted NCI's first private training event. We conducted the training in his living room at his home in Scottsdale, Arizona. At the time he had about 8 trucks, and did maybe 1.5...
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