HVAC Chiller Technician

Air-Cooled Chiller Technician — Job Description

Position Summary: The Air-Cooled Chiller Technician is responsible for the inspection, diagnosis, maintenance, and repair of air-cooled chiller systems and related HVAC equipment. This role ensures optimal system performance, efficiency, and reliability for commercial, industrial, and institutional facilities while delivering excellent customer service and accurate documentation.

• Perform preventive maintenance on air-cooled chillers and ancillary equipment.
• Diagnose mechanical, electrical, and control issues on chiller systems.
• Troubleshoot compressors, condenser fans, refrigerant circuits, and heat exchangers.
• Perform leak detection, evacuation, charging, and recovery in accordance with EPA regulations.
• Inspect and test chiller controls, safety devices, wiring, contractors, and sensors.
• Conduct vibration, superheat, and subcooling analysis to verify system performance.
• Calibrate controls and verify sequence of operation.
• Maintain accurate service records, work orders, and maintenance logs.
• Provide repair recommendations and communicate findings to supervisors/customers.
• Respond to emergency service calls and support after-hours work as needed.
• Follow company safety standards, OSHA guidelines, and environmental regulations.
• Assist with startup and commissioning of new chiller installations.
• Work collaboratively with service coordinators and project managers.

• 5+ years’ experience servicing air-cooled chillers (preferred).
• Strong knowledge of refrigeration theory and HVAC fundamentals.
• Ability to read electrical schematics and control diagrams.
• Proficiency with digital gauges, multimeters, microns, vacuum pumps, and recovery units.
• Valid EPA 608 Universal Certification (required).
• Experience with manufacturers such as Trane, Carrier, Daikin, York, or McQuay is a plus.

• Strong problem-solving and diagnostic ability.
• Professional communication with customers and team members.
• High attention to detail and documentation accuracy.
• Self-motivated and able to work independently.

• Ability to lift 50+ lbs.
• Work indoors and outdoors in varying weather conditions.
• Ability to climb ladders, work at heights, and in mechanical rooms.
• Availability for on-call rotation or overtime as required.

• High school diploma or GED required.
• Technical school or apprenticeship preferred.

• Competitive hourly rate or salary.
• Overtime opportunities.
• Company vehicle, phone, tools allowance.
• Health, dental, vision insurance.
• Paid time off and holidays.
• Training and certification reimbursement.