Monitor operation, repair, and maintain refrigeration, water cooling and air conditioning equipment; boilers, heating, ventilating and hot water equipment; pumps, valves, piping and filters; other mechanical and electrical equipment; recording readings as necessary to assure proper operation of equipment; responsible for reporting any problems/malfunctions. Monitors operation, adjusts, and maintains refrigeration, chilled water, and air conditioning equipment; boilers, and ventilating and hot water heaters; pumps, valves, piping and filters; other mechanical and electrical equipment; record readings and make adjustments where necessary to ensure proper operation of equipment.