Hvac Air Duct Leakage Test Manual Pdf

Ductwork that is designed to operate at static pressures in excess of 3 inches water column 0 75 kpa and all ductwork located outdoors shall be leak tested according to the ansi smacna hvac air duct leakage test manual.

Hvac air duct leakage test manual pdf. 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. Contains updates to the expected leakage rates for ductwork constructed to the smacna hvac duct construction standards metal flexible duct leakage test procedures recommendations on use of leakage testing types. This american national standard ansi smacna 016 2012 covers revised leakage criteria and builds on the proven methods for testing ductwork for air leaks from the first edition. Hvac air duct leakage test manual author.

Representative sections totaling no less than 25. Leakage class can be calculated using equation 3 but needs to be specified if duct air leakage tests are required. The hvac air duct leakage test manual has been incorporated by reference and is legally mandated by the united states in title 10 of the code of federal regulations section 434 403 2 9 3. 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.

Mcgill airflow receives many inquiries each year from contractors who are performing leak tests in the fi eld wanting to know how to use this table to. The hvac air duct leakage test manual has also been incorporated by reference and is required by law in title 19 new york. Quote fromquote from hvac air duct leakage testhvac air duct leakage test manual smacna. The hvac air duct leakage test manual provides practical and detailed procedures for conducting leakage tests.

Potential accuracy of flow measurements should be evaluated. Hvac air duct leakage test manual and table 1 1 on page 1 11 in the 2005 smacna hvac duct construction standards. Sheet metal and air conditioning contractors national association subject. Click here to purchase the full version from the ansi store.

Law in 10 cfr 434 403 2 9 3 keywords. 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.