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Design Guide for Duct Systems Released for Public Review
The Air Conditioning Contractors of America (ACCA) Educational Institute recently released for public review a new version of its manual outlining the methods and procedures used to design residential duct systems.
"Residential Duct Systems," also known as “Manual D,” is one of a series of ACCA manuals that are used in the design and installation of residential and commercial heating and air conditioning systems.
Home builders who build to the 2006 International Residential Code are required to design HVA systems that meet “Manual D” specifications.
Multifamily builders also must comply with "Manual D" when using the International Mechanical Code.
The revised version of the manual will be submitted as the new reference in preparation for the 2012 version of the code.
Because “Manual D” is an approved standard of the American National Standards Institute (ANSI), ACCA must regularly update the guide in accordance with ANSI procedures.
NAHB is reviewing the revised "Manual D" and proposed changes and will submit comments on behalf of its membership
Visit www.acca.org/ansi to download the review version of the manual and the response form that explains how to submit comments.
Comments should be e-mailed to ACCA by Dec. 8.
For more information, e-mail Don Surrena at NAHB, or call him at 800-368-5242 x8574.
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