Commercial HVAC VRV/VRF Service Technician

About the role

Comfort Systems USA – Mid South is a leading mechanical services company specializing in heating, ventilation, air conditioning, and plumbing services for commercial, industrial, and institutional clients. With a focus on safety, quality, and innovation, we integrate planning, engineering, and implementation processes to meet the complex needs of our customers. Our team is dedicated to delivering high-performance mechanical systems and services while fostering long-term relationships with our clients through collaborative and cost-effective solutions.

Essential Duties & Responsibilities

• Diagnose, service, repair, and maintain commercial VRV/VRF HVAC systems
• Perform preventative maintenance and corrective service on VRV/VRF equipment and related components
• Troubleshoot electrical, refrigerant, controls, airflow, and communication faults
• Utilize manufacturer-specific software, diagnostic tools, and test equipment
• Read and interpret blueprints, schematics, wiring diagrams, and service manuals
• Document service activities, repairs, and recommendations accurately
• Communicate clearly with customers, supervisors, and internal teams
• Maintain compliance with all safety procedures, EPA regulations, and company policies
• Support system startups, system optimization, and performance verification
• Represent Comfort Systems USA – Mid South with professionalism and integrity at all job sites

Required Qualifications

• 3+ years of commercial HVAC service experience
• Demonstrated experience working on VRV/VRF systems (Daikin, Mitsubishi, LG, Samsung, or similar)
• Strong electrical and mechanical troubleshooting skills
• EPA Universal Certification required
• Valid driver’s license with a clean driving record
• Ability to work independently and manage service calls efficiently
• Strong written and verbal communication skills

Preferred Qualifications

• Manufacturer or factory VRV/VRF training or certifications
• Experience with building automation systems (BAS)
• NATE certification or equivalent
• Experience servicing large commercial or industrial facilities