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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. The newly released ...
The Air Conditioning Contractors of America Educational Institute (ACCA-EI) Standards Task Team (STT) announces the release of an updated ANSI/ACCA 1 Manual D — 2016 (Residential Duct Systems). The ...
Low Resistance Return Path: Revisions to Group 14 details (pertaining to transfer grilles and transfer duct design) in Appendix 3 of Manual D. A new Air-Balance Column in the Duct Sizing Worksheet: A ...
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