Posted on May 13, 2013 by Carl Seville, GBA Advisor
Among the multitude of sessions at the ACI conference in Denver recently (a total of at least 180 sessions by my count), there was a very interesting half-day workshop on airflow testing hosted by Bruce Manclark and Paul Francisco. Their setup included simulated HVAC(Heating, ventilation, and air conditioning). Collectively, the mechanical systems that heat, ventilate, and cool a building. ducts of various shapes and sizes, and they used a Minneapolis Duct BlasterCalibrated air-flow measurement system developed to test the airtightness of forced-air duct systems. All outlets for the duct system, except for the one attached to the duct blaster, are sealed off and the system is either pressurized or depressurized; the work needed by the fan to maintain a given pressure difference provides a measure of duct leakage. to provide air flow to test various measurement tools.