The Manual D procedures match duct system resistance (pressure drop) to blower performance (as defined by the HVAC system manufacturer’s blower performance tables). This delivers appropriate airflow to the rooms and spaces to be conditioned while ensuring that system airflow is compatible with the operating range of the HVAC equipment.
The ICC and IAPMO are in the process of updating their 2024 mechanical codes to include the use of A2L refrigerants in comfort cooling equipment, and contractors should become familiar with these new provisions.
The International Association of Plumbing and Mechanical Officials (IAPMO®) has released the hardcopy and digital versions of its 2015 edition of the Uniform Mechanical Code (UMC®). Both the hardcopy and eBook version can be purchased and downloaded via the IAPMO web store at www.iapmo.org
The International Association of Plumbing and Mechanical Officials (IAPMO) announced that its new standard IAPMO/ANSI S1001.1, Design and Installation of Solar Water Heating Systems, has been approved by the American National Standards Institute (ANSI) as an American National Standard.
The International Association of Plumbing and Mechanical Officials (IAPMO®) announced that Dain Hansen, director of government relations for IAPMO, has been named co-chair of the High-Performance Building Congressional Caucus Coalition (HPBCCC).
The Air Conditioning Contractors of America (ACCA) announced that Luis Escobar, manager of codes & standards, was appointed to the International Association of Plumbing and Mechanical Officials (IAPMO) 2015 Uniform Solar Energy & Hydronics Technical Committee.
The International Association of Plumbing and Mechanical Officials (IAPMO) has extended the deadline for volunteers wishing to participate on technical committees working toward the development of the 2015 editions of the Uniform Solar Energy and Hydronics Code and the Uniform Swimming Pool, Spa and Hot Tub Code.
The International Association of Plumbing and Mechanical Officials (IAPMO) is seeking volunteers to join two technical committees working toward development of the 2015 editions of the Uniform Swimming Pool, Spa, and Hot Tub Code (USPSHTC) and Uniform Solar Energy and Hydronics Code (USEHC).
ASHRAE and the International Association of Plumbing and Mechanical Officials (IAPMO) have entered into a memorandum of understanding specifically detailing ways in which the two organizations can work together to advance and promote mutual interests in built environment codes and standards.
The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and the International Association of Plumbing and Mechanical Officials (IAPMO) have entered into a memorandum of understanding (MOU) detailing ways in which the organizations can work together to advance and promote built environment codes and standards.