Consulting engineer with over 42 years of experience in refrigeration design. System designs include water source heat pumps, air conditioning, supermarket rack systems/ cases, cascade and low-temperature systems, chillers, environmental chamber design, and air-flow problems/design. Reasonable rates for part-time consulting; excellent references. Gordon Whitney, 11945 Waverly Harbor, Holland, MI 49424; 616-786-3504; (fax) 603-452-1960;gwhitney@macatawa.org (e-mail).