Duct Leakage Test

Earning the infiltration and duct leakage idl certification is a simple comprehensive and affordable way for builders remodelers hvac insulation and other contractors to gain the skills needed to offer duct leakage and blower door tests in compliance with iecc codes for new home construction or existing home remodels.

Duct leakage test.

Ducts shall be pressure tested to determine air leakage by either of the following. Test apparatustest apparatus duct leakage test system consists of duct leakage test system consists of. Total leakage measured with a pressure differential of 0 1 inch w g. Total leakage measured with a pressure differential of 0 1 inch w g.

The basic idea behind using a duct leakage tester to test for duct leakage is. 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. 25 pa across the system including. Verification can take place via either a post construction test or a rough in test.

Use a calibrated fan to pressurize the duct system. Both the 2009 and 2012 iecc require duct tightness to be verified. Leakage test procedures shall follow the outlines and classifications in the smacna hvac duct leakage test manual. 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.

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.