Hvac Air Duct Leakage Test Manual

Duct pressure classes are to be identified on the contract drawings.

Hvac air duct leakage test manual. Quote fromquote from hvac air duct leakage testhvac air duct leakage test manual smacna. 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. 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. Representative sections totaling no less than 25.

The hvac air duct leakage test manual has also been incorporated by reference and is required by law in title 19 new york. Sheet metal and air conditioning contractors national association subject. 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 provides practical and detailed procedures for conducting leakage tests.

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. 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. Hvac air duct leakage test manual order no. Public domain created date.

Duct seal class ducts shall be sealed as specified in the hvac dcs. 1972 2 nd edition 2012 122 pages. 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. Potential accuracy of flow measurements should be evaluated.

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. 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. Click here to purchase the full version from the ansi store. Schedule the pressure classes here by fan system num ber or portion thereof if they are not shown on the drawings.

Hvac air duct leakage test manual second edition 2012 sheet metal and air conditioning contractors national association inc. Hvac air duct leakage test manual author.