The recently updated Manual D focuses on residential duct system.
formerly known as the Refrigeration Service Engineers Society, is offering a
popular HVAC manual to members.
recently updated Manual D from the Air Conditioning Contractors of America focuses
on residential duct systems including variable-air-volume guidance; excess
length, sag and compression in flexible ducts; and new equivalent length values
for flex duct junction boxes.
Manual D covering residential duct systems is a tremendous guide written to
ensure the proper sizing and installation of both ductwork and equipment,” said
John Iwanski, the RSES’ director of publishing. “Its nearly 300 pages of
information on duct-system types, applications, selection, the effect of duct
leakage, pressure loss and more will help technicians provide customers with a
quality installation-and provide the energy-efficiency savings that today’s high-efficiency
equipment is capable of supplying. RSES
is pleased to be able to supply this information to members and nonmembers
is available by calling (800) 297-5660 or visiting the RSESwebsite
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