Operates boilers, chillers, pumps, cooling towers, water treatment systems and testing, medical air and vacuum systems, medical gases, compressors, and refrigeration systems and equipment by following manufacturer and department policies and procedures to ensure a safe, comfortable healthcare environment. Operates Heating, Ventilation and Air Conditioning (HVAC) systems, building automation systems, refrigeration monitoring systems, patient care systems, and all support equipment systems by following manufacturer's specifications to ensure a comfortable, health environment for Health System facilities.