The Refrigeration / Air Conditioning Mechanic is responsible for the operation of the heating, ventilation, and air conditioning systems along with reheat coils, thermostats, control valves, pneumatic valves, induction units, fan coil units, all direct expansion (DX) units, and refrigeration units. Demonstrate the ability to make all necessary rounds and observe the boiler room and associated equipment for proper operation, including being able to detect unusual noises, vibrations, and other symptoms of possible problems; take the necessary steps to resolve any problem(s) that arise.