Smacna Hvac Duct Construction Standards Table 5 1

1966 3 rd edition 2005 396 pages.

Smacna hvac duct construction standards table 5 1.

A comprehensive duct layout indicating. Figure 2 13 in hvac dcs use standard tables for sizes 120 in. The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction. The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction.

This revised manual addresses three new areas. For all other ducts of any application. A quick overview of the changes is provided in the front of this manual. 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.

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. This edition improves upon the second edition with expanded pressure class tables. Information required for duct construction. 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.

Information required for duct construction 1. 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. Hvac duct construction standards metal and flexible. The research also led to the development of the smacna hvac air duct leakage test manual 1st edition.

Duct over 120 inches. This american national standard ansi smacna 006 2006 contains tables and details for constructing ductwork for to 10 wg positive and negative pressures. Webinars hvac duct construction standards 102 rectangular duct tie rods new tables tdc tdf and rectangular duct over 120 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. A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system.

2 500 pa w g. P p more detailed. 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. For all ducts between the supply fan and variable volume control boxes and 1 250 pa w g.

Example 4 duct is 140 x 70 inches at negative 2 in.