Introduction to Manual D

This lesson provides and introduction to duct sizing using Manual D, a calculation worksheet published by the Air Conditioning Contractors of America ( ACCA). Sizing steps and calculations relevant to Manual D are introduced.

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The HERS Advanced Rater Training Program is funded by California utility customers and administered by Southern California Gas Company under the auspices of the California Public Utilities Commission, through a contract awarded to CLEAResult. California customers who choose to participate in this program are not obligated to purchase any additional services offered by the contractor. The trademarks used herein are the property of their respective owners.