Smacna Duct Construction Standards Table 4 1

The app will provide smacna compliant options for rectangular duct with dimensions from 1 inch to 120 inches for applications from negative to positive ten inch water gage.

Smacna duct construction standards table 4 1.

Use standard tables for sizes 120 in. The types of fittings to be used based on the designer s calculations of fitting losses i e square versus 45 entry taps conical versus straight taps etc. The research also led to the development of the smacna hvac air duct leakage test manual 1st edition. Information required for duct construction.

A comprehensive duct layout indicating. The scenarios for the app are limited to joint lengths of 4 5 and 6 feet. Smacna cad standard second edition v notice to users of this publication 1. Duct over 120 inches.

2 500 pa w g. For all ducts between the supply fan and variable volume control boxes and 1 250 pa w g. Hvac duct construction standards metal and flexible. The revised round industrial duct construction standards 3rd edition 2013 an american national standard ansi smacna 005 2013 is now available.

Disclaimer of warranties a the sheet metal and air conditioning contractor s national association smacna provides its product for informational. Example 4 duct is 140 x 70 inches at negative 2 in. Smacna members will receive an email shortly with instructions on how to receive their gratis copy. Duct over 120 inches.

A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system. 2 hvac duct construction standards metal and flexible 1st edition 1985 hvac duct construction standard metal and flexible 2nd edition 1995 and the current smacna duct construction standard hvac duct construction standards metal and flexible 3rd edition 2005.