Product Description

The ANSI recognized national standard for residential HVAC duct design will help you design a duct system in less time. The popular and accurate procedure has been revised to include updated and expanded VAV guidance?? with detailed examples; impacts of excess length?? sag and compression in flexible ducts; and new equivalent length values for flex duct junction boxes. Manual D?? from the Air Conditioning Contractors of America (ACCA)?? provides a single set of ANSI recognized duct sizing principles and calculations that apply to all duct materials.

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