A Plant Utilities Engineer 1, on an assigned shift in a heating and/or air-conditioning plant, or in a single or multi-building facility, operates, maintains, troubleshoots, repairs, tests, and calibrates mechanical and electrical equipment providing heat, hot water, ventilation, air-conditioning and electrical distribution in the most efficient and safe manner possible. Incumbents also make recommendations on major overhauls and replacement of equipment and initiate activity relating to energy conservation projects.