 TULSA, Okla., Nov. 09, 2020 GLOBE NEWSWIRE -- AAON, Inc. NASDAQ AAON, a leading manufacturer of heating and cooling products, today announced Mr. Jerry Levine recently notified the Company of his intent to retire and no longer provide investor relations consulting services for the Company, effective November 30, 2020. Mr. Levine has provided investor relations services for the Company for over twenty years and also served on the Companys Board of Directors from 2008 to 2017. 