​Manual S – Residential Equipment Selection

​Manual S® – Residential Equipment Selection (3rd Edition), developed by the Air Conditioning Contractors of America (ACCA), is the ANSI-recognized national standard for selecting and sizing residential heating, cooling, dehumidification, and humidification equipment. It provides comprehensive procedures to ensure that HVAC equipment matches the specific heating and cooling loads calculated using Manual J, taking into account factors such as local climate, home construction specifics, and manufacturer performance data.