Air Duct Leak Tester

En 1507 ventilation for buildings sheet metal air ducts with rectangular section requirements for strength and leakage.

Air duct leak tester.

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. Potential accuracy of flow measurements should be evaluated. Mark any leaks you find with a grease pencil. 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.

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. If you place your hand near these joints and you feel air coming out you know that there s a leak. En 12237 ventilation for buildings ductwork strength and leakage of circular sheet metal ducts. Our duct leakage testers are compliant with the following standards.

Quote fromquote from hvac air duct leakage testhvac air duct leakage test manual smacna. 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. Total leakage measured with a pressure differential of 0 1 inch w g. Ducts shall be pressure tested to determine air leakage by either of the following.

Figure 5 1l from the 2012 smacna hvac air duct leakage test manual shows the allowable leakage as a function of duct leakage classification and static pressure in the duct. 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. 25 pa across the system including manufacturer s air handler enclosure all registers taped or otherwise sealed post construction test. Leakage class can be calculated using equation 3 but needs to be specified if duct air leakage tests are required.

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 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. The spots where two air ducts connect are common places for leaks to occur.

Eurovent 2 2 leakage rate in sheet metal air distribution systems. Check the duct joints.