Troubleshoots, repairs, and maintains ultra-low freezers, ice machines, air dryer systems, centrifuge, fish tank coolers, environmental chambers, window air conditioners, evaporative coolers, water coolers, refrigerators, gas fired appliances and any other devices utilized for temperature control or ventilation. Troubleshoots, maintains, and repairs air handling units, lab equipment, chilled water distribution, heating water distribution, mixing boxes, duct systems, and all associated controls and safety devices.