Manual D Ductsize (MDD) is a fast and simple program designed for sizing and analyzing HVAC duct systems based on the Air Conditioning Contractors of America’s (ACCA’s) Manual D procedures. It ...
PAY ATTENTION: Flexible duct must be properly installed to perform as intended. Attention to detail will make or break the duct system. July 2, 2018 In order to understand the foundational principles ...