Performs maintenance work on boiler plant equipment (i.e. cleaning and repairing boilers; dismantling, repairing and installing control linkages; replacing valve seats, disc, and packing; adjusting and repairing feed water regulators, pressure reducing valves, boiler feed water pumps, deaerator feed water heater, booster pumps, and heat exchangers). Perform dally and preventative maintenance determined by scheduled activities (i.e. steam trap maintenance, valve maintenance, greasing of equipment and other predetermined tasks: (chillers, chill water pumps, cooling towers).