Air Duct Leak Tester

The hvac air duct leakage test manual provides practical and detailed procedures for conducting leakage tests.

Air duct leak tester.

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. Mark any leaks you find with a grease pencil. 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.

Quote fromquote from hvac air duct leakage testhvac air duct leakage test manual smacna. En 1507 ventilation for buildings sheet metal air ducts with rectangular section requirements for strength and leakage. 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. 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.

Leakage class can be calculated using equation 3 but needs to be specified if duct air leakage tests are required. The spots where two air ducts connect are common places for leaks to occur. 25 pa across the system including manufacturer s air handler enclosure all registers taped or otherwise sealed post construction test. 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. 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. 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 is a diagnostic tool designed to measure the airtightness of forced air heating ventilating and air conditioning hvac ductwork.

Potential accuracy of flow measurements should be evaluated. You can also try running your hand under other parts of your ductwork to feel for larger leaks. Our duct leakage testers are compliant with the following standards. Available to both buy and hire from bsria instrument solutions is the tsi airflow positive and negative duct accreditation panda 341 light system provides contractors commissioning engineers and research and development technicians with the best in class choice of test equipment to quantify air leakage in ductwork and other areas as well as the ability to measure the performance of.

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.