ANSI Approves ACCA Manual for Residential Equipment Selection

The American National Standards Institute recently issued approval of proposed revisions to ANSI/ACCA Manual S – 2014, Residential Equipment Selection. The approved standard will be designated as the 2023 edition. The standard is maintained by the Air Conditioning Contractors of America under the auspices of the ANSI-accredited ACCA Standards Task Team.

America is moving toward increased use of heat pumps to support the migration toward electrification. Additionally, there is an ever-increasing use of variable-capacity equipment. To address these changes, ACCA has updated accordingly. Along with setting clear requirements, the revised standard expanded its guidance for variable-capacity equipment.

The Manual S standard provides procedures for selecting and sizing residential heating, cooling, dehumidification and humidification equipment. The Normative Sections of the standard provide the equipment selection and equipment sizing criteria necessary to implement the standard’s requirements.

It is anticipated that the Normative Sections will be made available online for free. A User’s Manual will also be available at a later date, containing informative guidance and examples based on the Normative Sections.

For more information, contact Melissa Broadus, ACCA director of member communications & committee liaison, at melissa.broadus@acca.org.