Air Duct Leak Tester

Leakage class can be calculated using equation 3 but needs to be specified if duct air leakage tests are required.

Air duct leak tester.

Though built tough with an on board powerful motor the dalt 6900 is very easy to transport on its pneumatic tires and leaves little to no footprint on the job site. Apparent differences of about ten percent between fan delivery and sum of airflow measurements at terminals do not necessarily mean poor sealing and excess leakage. Total leakage measured with a pressure differential of 0 1 inch w g. Quote fromquote from hvac air duct leakage testhvac air duct leakage test manual smacna.

You can also try running your hand under other parts of your ductwork to feel for larger leaks. Total leakage measured with a pressure differential of 0 1 inch w g. Ductwork leakage testers the tsi positive and negative duct accreditation panda system pan200 series is designed to provide fast accurate duct leakage detection as well as duct performance measurements. Check the duct joints.

25 pa across the system including manufacturer s air handler enclosure all registers taped or otherwise sealed post construction test. If you place your hand near these joints and you feel air coming out you know that there s a leak. Eurovent 2 2 leakage rate in sheet metal air distribution systems. En 12237 ventilation for buildings ductwork strength and leakage of circular sheet metal ducts.

Where no specific duct pressure class designations are provided byclass designations are provided by the designer the 1 water gage pressure class is the basis 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. Ducts shall be pressure tested to determine air leakage by either of the following. The spots where two air ducts connect are common places for leaks to occur.

Mark any leaks you find with a grease pencil. Potential accuracy of flow measurements should be evaluated. A duct leakage tester is a diagnostic tool designed to measure the airtightness of forced air heating ventilating and air conditioning hvac ductwork. En 1507 ventilation for buildings sheet metal air ducts with rectangular section requirements for strength and leakage.

The hvac air duct leakage test manual provides practical and detailed procedures for conducting leakage tests. The instrument provides step by step test configuration and automated leakage testing based on the smacna hvac air duct leakage test manual and is accurate to 2 5 of reading.