Read and understand work orders, preventive maintenance tasks, check lists, equipment operations and maintenance manuals, specifications, material safety data sheets, equipment prints and diagrams, sketches, floor plans, and controls sequences of operations, Calibrate and maintain and install controls, including pneumatic controls. Heating, ventilation and air conditioning equipment and operation, including but not limited to, boilers, steam generators, steam traps, air handlers, terminal units, air conditioning units, exhaust fans, dampers, motors, actuators, etc.