Sr. Field Service Technician - Air Handlers

Senior Field Service Technician – Air Handlers (CAHU/CRAH)XNRGY Climate Systems designs and manufactures advanced cooling systems for data centers and other mission-critical environments. Our field service team starts up, commissions, troubleshoots, and services high-performance air-handling equipment at customer sites across the United States.The Senior Field Service Technician – Air Handlers (CAHU/CRAH) is a Level 3 technical resource responsible for field commissioning, service, and complex troubleshooting of custom air handling units and computer room air handlers. This technician verifies that fan arrays, controls, sensors, filtration, chilled-water coil controls, and building-management-system interfaces operate as designed. The role works independently at customer sites and coordinates closely with customers, project teams, controls partners, and other field technicians.This is a field-based position with frequent travel to customer facilities and data center projects in Kenosha, Wisconsin, and nearby areas. Typical assignments follow either a two-weeks-in-the-field / one-week-home schedule or a three-weeks-in-the-field / one-week-home schedule, depending on project needs. The technician must be comfortable working at active construction and operating sites and coordinating travel around project schedules.Work on custom cooling equipment supporting next-generation data centers and other critical facilities.Take ownership of field start-up, commissioning, and service work with opportunities to build technical depth and mentor other technicians.Earn additional compensation through overtime and travel, based on hours worked and applicable company policies.Join a growing service organization supporting projects across the United States.Perform delivery inspections of air-side equipment, document condition, and record damage with clear written notes and photographs.Verify installation readiness, including unit clearances, filters, plenum and duct connections, and condensate arrangements before start-up.Check electrical supply, fan rotation, and safety devices; identify deficiencies and coordinate corrective action with the appropriate site team.Configure and address electronically commutated (EC) fans, verify fan-array addressing, and confirm controller network settings and connectivity.Verify temperature and humidity sensors and document calibration results; inspect filtration installation and any fitted disinfecting filtration system.Commission air-handler controls integration with the building management system (BMS), including point-to-point verification and completed records.Commission fan-array control and verify specified N-1 redundancy behavior using approved procedures.Measure and verify airflow, static pressure, and fan performance against approved design criteria and project documentation.Commission chilled-water coil control valves and verify capacity-control operation across the required operating range.Troubleshoot mechanical, electrical, controls, communication, and air-side performance issues using drawings, wiring diagrams, control sequences, technical manuals, a laptop, and appropriate test instruments.Complete pre-functional, commissioning, point-to-point, calibration, performance, and service records accurately and at the point of work.Communicate equipment status, deficiencies, risks, and next steps to customers and internal project teams; provide clear turnover information.Share technical knowledge with junior technicians and support consistent, safe execution of field procedures.At least 7 years of hands-on commercial or industrial HVAC field service, start-up, or commissioning experience, including substantial work with air handlers, CRAH/CAHU equipment, or fan arrays.Demonstrated ability to commission and troubleshoot EC fan arrays, HVAC controllers, sensors, and BMS-connected equipment.Working knowledge of airflow, static pressure, fan performance, filtration, condensate management, and chilled-water coil control.Ability to read and apply electrical schematics, wiring diagrams, control sequences, equipment submittals, and technical manuals.Ability to use a laptop and field instruments to configure equipment, verify communications, collect measurements, and document results.Strong written and verbal communication skills, sound customer judgment, and the ability to work independently at customer sites.Valid driver's license and ability to meet company requirements for travel to U.S. customer locations.Ability to work safely at construction and operating sites, including climbing ladders, working around energized equipment under approved procedures, and lifting or moving equipment and materials as required.Experience with custom-manufactured air handlers or data center CRAH equipment in mission-critical environments.Experience with BACnet or other BMS communication protocols, controller network configuration, and point-to-point commissioning.Experience verifying fan-array redundancy, chilled-water valve response, sensor calibration, and air-side performance against design requirements.HVAC, electrical, refrigeration, or controls trade-school training, or equivalent technical education and field experience.EPA Section 608 certification if assigned work includes refrigerant-containing equipment.A methodical approach to troubleshooting: verify the operating conditions, use the drawings and sequence, test the system, and document what you find.A strong commitment to safety, quality, and complete commissioning records.The confidence to explain technical issues clearly and coordinate practical solutions with customers and project partners.A team-first attitude and willingness to coach developing technicians while continuing to learn new equipment and controls.Flexibility to travel and adjust to changing project schedules in a field-based role.