Hvac Duct Construction Standards

For all ducts between the supply fan and variable volume control boxes and 1 250 pa w g.

Hvac duct construction standards.

2 500 pa w g. The standard contains tables and details for constructing ductwork for to 10 wg positive and negative pressures. A quick overview of the changes is provided in the front of this manual. Located in headquarters outside washington d c the sheet metal and air conditioning contractors national association smacna an international association of union contractors has 1 834 members in 103 chapters throughout the united states canada australia and brazil.

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. If the designer does not designate pressure class for duct construction on the contract drawings the basis of compliance with the smacna hvac duct construction standards is as follows. Information required for duct construction 1. This american national standard ansi smacna 006 2006 contains tables and details for constructing ductwork for to 10 wg positive and negative pressures.

1966 3 rd edition 2005 396 pages. The types of fittings to be used based on the designer s calculations of fitting. A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system. The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction.

Event objectives gain solid understanding of how to construct duct in a resource efficient and sustainable manner that is compliant with smacna s hvac duct construction standard. This edition improves upon the second edition with expanded pressure class tables. Information required for duct construction. Webinars hvac duct construction standards 103 round and oval duct hangers and casing construction.

The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction. Hvac duct construction standards metal and flexible third edition iii foreword this third edition of the smacna commercial metal and flexible duct construction standards is another in a long line dating from the 1950s. This american national standard ansi smacna 006 2006 contains tables and details for constructing ductwork for to 10 wg positive and negative pressures. This is the final session in a three part series.

A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system.