Daniel W. Holmes, chairman and chief executive officer of Morrison Products, Inc., has been elected chairman of the board of directors of the Air-Conditioning and Refrigeration Institute (ARI) (Arlington, VA). Thomas E. Bettcher, president and CEO of Copeland Global, was elected first vice chairman of ARI and Jonathan W. Ayers, president, Worldwide, Carrier Corporation, was elected second vice chairman. Gary L. Tapella, president and CEO, Rheem Manufacturing, will serve as immediate past chairman of ARI.