History of ACCCO

The Air Conditioning Contractors of Central Ohio (ACCCO) history can be traced to the early 1900s during the pre-World War I era when central heating and factory mechanization were taking root. From these historical milemarkers, two organizations emerged to become voices for workers in the industry: the National Warm Air Heating and Air Conditioning Association (NWAHACA) – established in 1914 to represent manufacturers, wholesalers and contractors – and the Air Conditioning and Refrigeration Contractors of America (ARCA) – established in 1946 to represent contractors exclusively.


In 1968, NWAHACA dissolved to merge with ARCA. Manufacturer members became part of what is now known as the Air-Conditioning & Refrigeration Institute (ARI). Before departing NWAHACA, they established a trust fund to assist contractors in operating an independent trade organization. The tangible assets of NWAHACA, as well as the rights to the technical manuals program, were transferred to the contractor members.

This careful planning resulted in the formation of a new entity, National Environmental Systems Contractors Association (NESCA), which was incorporated on January 1, 1969. In 1978, NESCA was renamed Air Conditioning Contractors of America (ACCA).


On July 1, 2015 ACCA National terminated all affiliations with state and local chapters.  ACCA Central Ohio was renamed ACCCO (Air Conditioning Contractors of Central Ohio) and became a stand-alone trade association representing HVACR contractors and our Associate Members throughout Central Ohio. While now separate from the state association, ACCCO remains closely aligned to the state association, Air Conditioning Contractors of Ohio.




About ACCA

History of ACCA
Board of Directors