ACCA's Manual J-201x – “Residential Load Calculation” Out For ANSI Public Review

October 16, 2015

The Air Conditioning Contractors of America Educational Institute (ACCA-EI) Standards Task Team (STT) announces an American National Standards Institute (ANSI) public review period for its BSR/ACCA 2 Manual J-201x, “Residential Load Calculation” as a revised industry standard. The 45 day public review period started on October 16, 2015 with a comment deadline of November 30, 2015.

The revised standard details the requirements for producing a residential load calculation per the CLF/CLTD method contained in Manual J, 8th Edition. The provision of the standard apply to any dwelling unit that has its own heating-cooling-ventilating system and equipment, and its own exhaust air system(s). This includes:

  • ​Single family detached structures, duplex structures, and triplex structures;
  • Single family attached structures (row house or town house);
  • Dwelling units in multi-family attached structures (condo and apartment units); and
  • Energy efficient homes.

The revised standard has been divided into two portions: normative and informative. Parts N (Normative Requirements) and 4 (Tables) contain the minimum requirements for conducting a residential load calculations. Informative Parts 1, 2, 3, and 5 contain additional explanation, details, and examples that clarify the normative requirements.

To obtain a copy of the revised standard draft, please send your request to Luis Escobar, ACCA Manager of Codes & Standards, at  

Comments and questions may be submitted to ACCA on the Public Response Form, which can be found at


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ACCA is a non-profit association serving more than 60,000 professionals and 4,000 businesses in the indoor environment and energy services community. Our member firms are the nation's most professional contracting businesses, serving residential and commercial customers in every state. With roots stretching back a century, ACCA was incorporated in its present form nearly 50 years ago. Today, ACCA sets the standards for quality comfort systems, provides leading-edge education for contractors and their employees, and fights for the interests of professional contractors throughout the nation. Learn more about ACCA here.