Smacna Hvac Duct Construction Standards Table 5 1

The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction.

Smacna hvac duct construction standards table 5 1.

This american national standard ansi smacna 006 2006 contains tables and details for constructing ductwork for to 10 wg positive and negative pressures. 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. A comprehensive duct layout indicating. 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.

2 500 pa w g. Duct over 120 inches. For all ducts between the supply fan and variable volume control boxes and 1 250 pa w g. Duct over 120 inches.

Hvac duct construction standards metal and flexible. Example 4 duct is 140 x 70 inches at negative 2 in. A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system. Information required for duct construction 1.

Figure 2 13 in hvac dcs use standard tables for sizes 120 in. A quick overview of the changes is provided in the front of this manual. 1966 3 rd edition 2005 396 pages. The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction.

This american national standard ansi smacna 006 2006 contains tables and details for constructing ductwork for to 10 wg positive and negative pressures. This edition improves upon the second edition with expanded pressure class tables.