Over 9 years of experience performing maintenance on heating/air conditioning and refrigerant systems, as well as electrical and mechanical controls (Johnson, Niagara), in industrial settings between 200,000 sq. ft. -1.2M sq. Ft. Knowledgeable in the use of auditory/visual troubleshooting techniques to locate root cause of machine malfunction to affect timely repairs. Assisted with the repair and calibration of HVAC systems to include air handling units, fan coil units, thermostats, sensors, control valves, and other associated equipment. Able to read and interpret mechanical blueprints and electrical schematics. Troubleshot and repaired gas-fired boilers, air chillers, chill water systems and auxiliary equipment. Installed compressors, heat exchangers, evaporators, motors, gearboxes, bearings, valves (solenoid, pilot, directional control), and ducting. Performed preventive maintenance/rebuilds on boilers (up to 6M BTU), rooftop units, chilled-water systems and forced air equipment, as well as coupling/shaft alignments and vibration analysis. Recognized for efficiency in troubleshooting, diagnosing, repairing, and performing preventative maintenance on building and facility HVAC systems. Proficient in the use of eMaint, MicroMain, Upkeep and many other proprietary CMMS systems.