Smacna Hvac Duct Construction Standards Pdf

This technical paper reviews the hvac duct construction standards 2nd edition 1995 specifications and requirements for zinc coating on galvanized steel ducts.

Smacna hvac duct construction standards pdf.

Howard iii sheet metal and air conditioning contractors national association. 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 other ducts of any application. Also both options have been shown so as to provide this manual as a quick reference to smacna standards.

Smacna cad standard second edition v notice to users of this publication 1. For all ducts between the supply fan and variable volume control boxes and 1 250 pa w g. 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. The smacna hvac duct construction standards 2nd ed 1995 and therefore both options have been shown.

Documents preceding 3rd edition hvac dcs hvac duct construction standards metal and flexible. Disclaimer of warranties a the sheet metal and air conditioning contractor s national association smacna provides its product for informational. 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. A quick overview of the changes is provided in the front of this manual.

Paragraph and page references from the hvac dcs manual are provided along with the text. 2 500 pa w g.