Summary
Overview
Work History
Education
Skills
Timeline
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John Unternahrer

Wayland,IA

Summary

Accomplished Environmental System Mechanic III with a proven track record at the University of Iowa, showcasing expertise in system optimization and maintenance. Skilled in utilizing advanced diagnostic tools and holding multiple Iowa journeyman licenses. Showing excellence in preventive maintenance and workplace safety, to include significantly enhancing system reliability and performance. Energetic and reliable with a passion for hands-on work. Capable of identifying issues early and offering cost-effective solutions for the client and/or business. Demonstrating versatility and experience with the latest technology and advancements in HVACR/Dining industry.

Overview

20
20
years of professional experience

Work History

Enviromental System Mechanic III

University of Iowa Hospital and Clinics
03.2017 - Current
  • Performed skilled work in the areas of installation, repair, alteration, replacement and maintenance of components of environmental systems such as refrigeration, temperature control, chillers, heating (all fuel types) systems to include other support systems and emerging technology equipment. Utilized computerized control systems to collect, analyze and modify mechanical system performance to ensure system reliability and system optimization.
  • Installed, performed preventive maintenance, troubleshot and repaired varies refrigeration systems including walk in coolers, reach in display cases, portable refrigerators, ice machines, soda dispensers, and medical refrigerator/freezers down to -80 degrees.
  • Operated, inspected, maintained and repaired chillers, chilled water equipment and systems to include associated auxiliary equipment such as air compressors, air dryers, pumps, chiller tube bundles, heat exchangers, and other emerging technology equipment and systems.
  • Performed leak tests, transferred refrigerants, charged machines and handled refrigerants according to EPA regulations.
  • Conducted a variety of audible, visual and mechanical tests using computerized building environmental automation systems, records and service reports and other tools to diagnose and recommend system modifications to improve equipment and system performance.
  • Modified building automation systems that control heating and cooling systems.
  • Provided functional guidance and training to apprentices, new hires, and other personnel.
  • Investigated new methods and equipment to be used in computerized building environmental automation systems and made recommendations to engineers.
  • Installed, performed preventive maintenance, troubleshot and repaired, steam convectors, steam traps, condensate pumps, hot water convectors, chilled water pumps, heating water pumps.

Enviromental System Mechanic III

University of Iowa Housing and Dining
01.2005 - 03.2017
  • Installed, performed preventive maintenance, troubleshot, and repaired equipment in the main campus dining hall, equipment service included gas grills, gas griddles, gas fired pizza ovens, electric conveyor pizza ovens, steam kettles, combination ovens, ice cream machines, ice machines, dishwashers, and exhaust fans.
  • Installed, performed preventive maintenance, troubleshot, and repaired gas furnaces, gas fired boilers, mini split heat pump systems, split air conditioning systems, and tube heaters.
  • Installed, performed preventive maintenance, troubleshot and repaired, steam convectors, steam traps, condensate pumps, hot water convectors, chilled water pumps and heating water pumps.
  • Additional duties included all bulleted statements from above position at University of Iowa Hospital and Clinics.

Education

Kirkwood Community College
Cedar Rapids, IA

Skills

  • Iowa Journeyman Electrical License
  • Iowa Journeyman Plumbing license
  • Iowa Journeyman HVAC License
  • Iowa Journeyman Hydronic License
  • Iowa Journeyman Refrigeration License
  • Universal EPA Refrigeration Handling Certificate
  • Preventive Maintenance
  • Workplace Safety
  • Systems troubleshooting
  • Maintenance and repairs
  • Electrical Systems
  • Hand and power tools
  • Excellent Troubleshooting skills

Timeline

Enviromental System Mechanic III

University of Iowa Hospital and Clinics
03.2017 - Current

Enviromental System Mechanic III

University of Iowa Housing and Dining
01.2005 - 03.2017

Kirkwood Community College

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John Unternahrer