Maintaining boiler water levels, temperatures and internal pressures within operating parameters; testing boiler safety features for proper operation on each shift, determining the amount of chemicals to be fed into boiler for control of corrosion and scale formation, and repairing minor repairs on the boiler plants to ensure continuity of services to the customer. Applicants responsibilities must included monitoring gauges, thermometers, and flowmeters to ensure proper operation, maintaining oil pressures and temperatures within operational limits, and performing preventive maintenance tasks such as changing filters, replacing worn belts, lubricating bearings, and repacking valves on hot and chilled water circulating systems.