Evan Stephens
Victorville,CA
Summary
Dynamic HVAC-R Mechanic with extensive experience at Primewest Mechanical, specializing in troubleshooting and maintaining mission-critical systems. Proven expertise in equipment replacement and building automation, enhancing operational efficiency. Strong communicator with a commitment to safety and compliance, ensuring optimal performance and minimal downtime in high-stakes environments.
Overview
14
14
years of professional experience
Work History
HVAC-R Mechanic
Primewest Mechanical
07.2025 - Current
- Performed service, troubleshooting, and repair of mission-critical HVAC systems in data center environments, ensuring continuous uptime and strict temperature/humidity control
- Maintained and repaired Liebert CRAC units, including airflow issues, alarms, controls, sensors, compressors, and condenser systems
- Serviced and maintained large commercial air handlers (AHUs), including supply/return fans, belts, bearings, motors, dampers, filters, and controls
- Worked extensively with chilled water systems, including pumps, valves, strainers, coils, air elimination, and system balancing
- Diagnosed and repaired chilled water flow, temperature, and pressure issues affecting data hall and equipment cooling performance
- Replaced and upgraded HVAC equipment including Package units, air handlers, pumps, motors, controls, and associated electrical components
- Coordinated equipment change-outs and retrofits while maintaining system redundancy and minimizing downtime in live environments
- Implemented and executed preventive maintenance (PM) programs for data centers and commercial facilities
- Developed and followed PM schedules for CRAC units, air handlers, pumps, cooling towers, and supporting mechanical systems
- Inspected, tested, and documented system performance, deficiencies, and corrective actions
- Worked with BAS/BMS systems to monitor alarms, operating status, temperatures, and trends
- Responded to emergency service calls and critical alarms with rapid diagnosis and resolution
- Ensured compliance with site safety requirements, SOPs, and mission-critical best practices
- Communicated effectively with facility managers, operations staff, and vendors regarding system status and repair recommendations
HVAC-R Mechanic
Vision Mechanical
02.2021 - 07.2025
- Diagnosed and repaired HVAC-R systems to ensure optimal performance and compliance with safety standards.
- Installed, maintained, and serviced heating and cooling equipment using industry-standard tools and methodologies.
- Collaborated with team members to troubleshoot complex HVAC-R issues, enhancing overall operational efficiency.
- Conducted routine inspections to identify potential issues, ensuring timely maintenance and minimizing downtime.
- Implemented preventative maintenance schedules that improved system reliability and reduced emergency repairs.
HVAC Technician
Sprint/T-Mobile
02.2018 - 11.2021
- Maintained and repaired Liebert CRAC/CRAH units, large AHUs, and chilled water systems in mission-critical data center environments
- Monitored and troubleshot systems using BAS/BMS, including alarms, trends, I/O points, and control sequences
- Executed preventive maintenance programs and equipment replacements while maintaining system redundancy and uptime
HVAC-R Mechanic
Ecotech Refrigeration & Air Conditioning
06.2015 - 09.2017
- Maintained and repaired Liebert CRAC/CRAH units, large AHUs, and chilled water systems in mission-critical data center environments
- Monitored and troubleshot systems using BAS/BMS, including alarms, trends, I/O points, and control sequences
- Executed preventive maintenance programs and equipment replacements while maintaining system redundancy and uptime
HVAC-R Service Technician
Rooftop Solutions, LLC
12.2011 - 06.2015
- Diagnosed and repaired HVAC-R systems to ensure optimal performance and energy efficiency.
- Performed routine preventative maintenance on commercial and residential equipment, reducing downtime and service calls.
- Installed new heating, ventilation, and air conditioning systems according to manufacturer specifications and local codes.
- Installed & maintained clean traps for exhaust fan systems
Education
Certificate of Technical Studies - EPA Universal 608
Esco Institute
Los Angeles, CA01.2012
Certificate of Technical Studies - HVAC & Refrigeration Technologies
Los Angeles Trade Technical College
Los Angeles, CA12-2012
Skills
- EPA certification
- Cooling systems maintenance
- Equipment replacement
- Air conditioning
- Leak testing
- System troubleshooting
- Gas furnaces
- Refrigeration systems
- Electrical wiring
- Equipment installation
- Control systems
- Building automation
- Variable speed drives
Timeline
HVAC-R Mechanic
Primewest Mechanical
07.2025 - Current
HVAC-R Mechanic
Vision Mechanical
02.2021 - 07.2025
HVAC Technician
Sprint/T-Mobile
02.2018 - 11.2021
HVAC-R Mechanic
Ecotech Refrigeration & Air Conditioning
06.2015 - 09.2017
HVAC-R Service Technician
Rooftop Solutions, LLC
12.2011 - 06.2015
Certificate of Technical Studies - EPA Universal 608
Esco Institute
Certificate of Technical Studies - HVAC & Refrigeration Technologies
Los Angeles Trade Technical College