ACCA Manual S – Residential Equipment Sizing
Another step to correctly designing, protect owner’s investment and limit contractors liability is following the Air Conditioning Contractors of America (ACCA) Manual S – Residential Equipment Selection. The Manual J is used to only calculate the heating and cooling loads. The current, nationally recognized Manual J (8th Edition) instructs HVAC system designers (Section 10-4) to use the Manual S – Residential Equipment Selection in order to select equipment that is the properly sized for BTUH and airflow.
Additionally, Manuals S and J are both required per the 2009-2015 International Residential Code (IRC):
“Heating and cooling equipment shall be sized in accordance with ACCA Manual S based on building loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculation methodologies.”
Our experienced, trained professionals provide accurate, independent, third-party HVAC systems design of your clients’ HVAC systems. We help you select the correct equipment to ensure quality and comfort for increased satisfaction.