Representative sections totaling no less than 25.
Hvac air duct leakage test manual pdf.
Potential accuracy of flow measurements should be evaluated.
Hvac air duct leakage test manual author.
Quote fromquote from hvac air duct leakage testhvac air duct leakage test manual smacna.
Leakage class can be calculated using equation 3 but needs to be specified if duct air leakage tests are required.
Th is table is not an allowable leakage specifi cation but is often used as one.
Hvac air duct leakage test manual sheet metal and air conditioning contractors national association inc.
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.
Law in 10 cfr 434 403 2 9 3 keywords.
The hvac air duct leakage test manual has also been incorporated by reference and is required by law in title 19 new york.
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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.
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.
Hvac air duct leakage test manual and table 1 1 on page 1 11 in the 2005 smacna hvac duct construction standards.
The hvac air duct leakage test manual provides practical and detailed procedures for conducting leakage tests.
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.
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.
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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.