Hvac Duct Construction Standards Pdf

Information required for duct construction 1.

Hvac duct construction standards pdf.

A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system. 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. A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system. Ductwork design considerations 33.

The types of fittings to be used based on the designer s calculations of fitting. Most air conditioning and heating systems require some form of duct work to channel or direct the. This is the final session in a three part series. A quick overview of the changes is provided in the front of this manual.

Hvac duct construction standards metal and flexible. 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. T 25a 31 42 24 56 t d c. 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.

2 500 pa w g. Duct size duct gauge joint length wide side connector narrow side connector 0 12 26 59 flat slip t 6 24 ga flat drive t 1 24 ga 13 18 26 59 standing slip t 11 26 ga flat drive t 1 24 ga 19 30 26 56 t d c. For all other ducts of any application. 10 9 standard duct sizes 32 11 0.

Smacna hvac duct construction standards metal and flexible third edition 2005. 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. Information required for duct construction.