Smacna Hvac Duct Construction Standards Pdf

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.

Smacna hvac duct construction standards pdf.

Disclaimer of warranties a the sheet metal and air conditioning contractor s national association smacna provides its product for informational. Paragraph and page references from the hvac dcs manual are provided along with the text. Also both options have been shown so as to provide this manual as a quick reference to smacna standards. 2 500 pa w g.

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. Ansi smacna 006 2006 hvac duct construction standards eli p. Documents preceding 3rd edition hvac dcs hvac duct construction standards metal and flexible. The results of these certified tests which permit the variation are shown on the back page of this manual.

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. Howard iii sheet metal and air conditioning contractors national association. A quick overview of the changes is provided in the front of this manual. Smacna cad standard second edition v notice to users of this publication 1.

The research also led to the development of the smacna hvac air duct leakage test manual 1st edition. This technical paper reviews the hvac duct construction standards 2nd edition 1995 specifications and requirements for zinc coating on galvanized steel ducts.