Under general supervision, the Facilities HVAC Technician is responsible for diagnosing, maintaining, and repairing various heating, ventilation, air conditioning, and refrigeration (HVAC/R) systems and equipment throughout Zoo Knoxville. The role supports the Facilities Department by ensuring the safe and efficient operation of environmental systems that sustain both public and animal areas. This position performs skilled maintenance and repair work, including preventive maintenance, troubleshooting, and system optimization. The Technician may be required to respond to after-hours and weekend emergencies as directed by the Facilities Supervisor or Manager.