Devon Walsh

Commercial HVAC Technician

Nashville, United States

Professional Summary

Licensed commercial HVAC technician with 8+ years installing, diagnosing, and maintaining rooftop units, VRF systems, and building automation controls for retail, healthcare, and light industrial sites across Middle Tennessee. Known for clean workmanship, accurate load calculations, and keeping downtime short on occupied facilities. EPA Section 608 Universal certified; comfortable reading blueprints and coordinating with GCs on tight schedules.

Employment History

Commercial HVAC Technician

Mid-South Climate Systems · Nashville, TN

Mar, 2021 · Present

Lead install and service on 5–40 ton RTUs and VRF systems for retail and medical clients; average first-visit fix rate ~85%. Commissioned BACnet and proprietary controls on 12 multi-zone jobs; cut callback rate 30% vs prior year by tightening start-up checklists. Mentored 2 apprentices on refrigerant recovery, brazing, and electrical troubleshooting; zero lost-time injuries on crew in 2024–25.

HVAC Service Technician

Cumberland Mechanical Partners · Murfreesboro, TN

Jun, 2017 · Feb, 2021

Diagnosed and repaired commercial refrigeration and comfort cooling for restaurants and grocery; handled after-hours emergency calls. Rebuilt condenser and evaporator assemblies; documented parts and labor in FieldEdge for accurate billing. Supported planned maintenance contracts covering ~90 rooftop units across 4 counties.

HVAC Lab Assistant (part-time)

Volunteer State Technical College · Gallatin, TN

Aug, 2015 · May, 2017

Assisted instructors with lab setups for refrigerant handling and electrical labs; graded practical checkoffs. Maintained shop inventory of gauges, recovery machines, and PPE.

Education

AAS, Heating, Ventilation & Air Conditioning

Volunteer State Community College · Gallatin, TN

2015 · 2017

Associate of Applied Science focused on commercial HVAC installation, refrigeration, electrical troubleshooting, and safe refrigerant handling.

Skills

RTU

VRF

Brazing

Electrical troubleshooting

Load