ACCA Opens Review of Changes to Manual S Addendum
ALEXANDRIA, Va. — The ACCA Educational Institute (ACCA-EI) Standards Task Team is undertaking an American National Standards Institute (ANSI) second public review for modifications to the proposed “Addendum c” to ANSI/ACCA 3 Manual S – 2023, ”Residential Equipment Selection,” as a revised industry standard.
The 30-day ANSI public review period ends on Sunday, Nov. 23. The proposed Addendum c will supplement ANSI/ACCA 3 Manual S – 2023, Addendum a – 2024, and Addendum b – 2024. The modifications to the proposed Addendum c are solely based on comments received during the first public review of the draft.
Manual S outlines procedures for selecting and sizing residential cooling equipment, heat pumps, electric heating coils, furnaces, boilers, ancillary dehumidification equipment, humidification equipment, and direct evaporative cooling equipment. Manual S is also a requirement specified in the International Residential Code and the Uniform Mechanical Code.
A redline review draft of the modifications is available on the ACCA website. Submit comments using this form by November 23.
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