Renison W. Tisdale, Jr., P.E., received a Distinguished Service Award from the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) at its 2007 Annual Meeting held here June 23-27.

The Distinguished Service Award salutes members of any grade for giving freely of their time and talent on behalf of the Society. The honor recognizes participation in chapter, regional and Society activities.

Tisdale is president of Vansant & Gusler Inc, Norfolk, Va.