Devon Hale

Service and maintain commercial rooftop units, split systems, heat pumps, and building automation equipment across retail and light-industrial sites. Diagnose electrical, airflow, refrigerant, and controls faults; complete first-visit repairs while meeting OSHA and company safety standards. Plan preventive-maintenance routes for 40+ customer units, improving seasonal readiness and reducing repeat callbacks by 18%. Document readings, parts, labor, and customer recommendations in mobile service reports; mentor two junior technicians on safe troubleshooting.

Installed and commissioned packaged rooftop units, mini-splits, exhaust fans, and make-up air systems for offices, restaurants, and multifamily properties. Performed refrigerant recovery, evacuation, charging, brazing, duct transitions, start-up testing, and airflow balancing in accordance with manufacturer specifications. Resolved service calls involving compressors, economizers, contactors, VFDs, thermostats, and low-voltage controls; maintained a 95% on-time completion rate. Coordinated with general contractors and site managers, reading plans and documenting punch-list closeout for projects up to $450K.

Supported senior technicians on preventive maintenance, filter changes, coil cleaning, belt replacement, and basic electrical testing for schools, warehouses, and office buildings. Assisted with rooftop-unit changeouts, ductwork fabrication, refrigerant-line installation, brazing preparation, and jobsite material staging. Used hand and power tools safely, maintained clean work areas, and completed equipment checklists with accurate model and serial information. Earned EPA 608 Universal certification while completing a structured apprenticeship and progressing to independent service calls.

Coursework: refrigeration fundamentals, electrical systems, air distribution, load calculations, blueprint reading, and commercial HVAC service procedures. Completed hands-on lab work with rooftop units, split systems, recovery equipment, and brazing.