Duct Leakage Test

Ducts shall be pressure tested to determine air leakage by either of the following.

Duct leakage test.

Verification can take place via either a post construction test or a rough in test. 25 pa across the system including. Test apparatustest apparatus duct leakage test system consists of duct leakage test system consists of. A duct leakage tester consists of a calibrated fan for measuring an air flow rate and a pressure sensing device to measure the pressure created by the fan flow.

Leakage test procedures shall follow the outlines and classifications in the smacna hvac duct leakage test manual. Measure the airflow through the fan with the duct system at pressure. If specimen fails to meet allotted leakage level the contractor shall modify to bring it into compliance and shall retest it until acceptable leakage is demonstrated. The basic idea behind using a duct leakage tester to test for duct leakage is.

For the post construction test leakage measurement must be made across the entire system including the manufacturer s air handler enclosure with all register boots taped or sealed at a test pressure of 0 1 inches w g. A duct leakage tester is a diagnostic tool designed to measure the airtightness of forced air heating ventilating and air conditioning hvac ductwork. Total leakage measured with a pressure differential of 0 1 inch w g. Both the 2009 and 2012 iecc require duct tightness to be verified.

Total leakage measured with a pressure differential of 0 1 inch w g.