The ANSI-recognized national standard for residential HVAC duct design will help you design a duct system in less time. The ANSI-recognized national standard for residential HVAC duct design will help ...

ARLINGTON, Va. - Manual D® is the Air Conditioning Contractors of America (ACCA) standard for residential duct design. ACCA has now introduced a new CD training package that the association says takes ...

The 45 day public review period started on January 10, 2014 Manual D uses heating and cooling loads to determine space air delivery requirements for residential ...