AAON, Inc. donates equipment to Rowan-Cabarrus Air Conditioning, Heating and Refrigeration technology program National equipment manufacturer contributes geothermal heat pumps to help students train in the latest industry technology National equipment manufacturer contributes geothermal heat pumps to help students train in the latest industry technology (Source: Submitted photo) By David Whisenant | May 14, 2021 at 6:46 PM EDT - Updated May 14 at 6:46 PM ROWAN COUNTY, N.C. (WBTV) - AAON, Inc., a national manufacturer of heating and air conditioning equipment, recently donated 12 geothermal heat pumps to the Rowan-Cabarrus Community College Air Conditioning, Heating and Refrigeration Technology program. Representatives of the company were on hand to make a formal presentation at the College’s recent Board of Trustees meeting.