HVAC Technician – Refrigerant Systems & Controls

JLL•Tampa, FL

1d•Onsite

About The Position

As an HVAC Technician – Refrigerant Systems & Controls at JLL, you will play a critical role in maintaining and optimizing refrigerant-based HVAC systems that support the performance, reliability, and energy efficiency of our clients' facilities. This position focuses on hands-on service, troubleshooting, and preventive maintenance of cooling equipment and associated building automation systems to ensure safe, compliant, and uninterrupted operations. Your technical expertise will directly contribute to system uptime, occupant comfort, and operational excellence across managed properties.

Requirements

High school diploma or equivalent
EPA Section 608 Certification (Universal)
3–5 years of hands-on experience servicing refrigerant-based HVAC systems
Proven experience troubleshooting compressors, refrigerant circuits, and mechanical components
Working knowledge of HVAC electrical systems, low-voltage controls, and safety procedures
Ability to read and interpret schematics, wiring diagrams, and equipment documentation
Technical or vocational training in HVAC or a related field
Candidates must be authorized to work in the United States without sponsorship.

Nice To Haves

Experience working with building automation systems (BAS/BMS) such as Johnson Controls, Trane, Siemens, Honeywell, or Schneider
Familiarity with system performance testing, energy efficiency optimization, and automation setpoint adjustments
Additional certifications such as NATE, HVAC Excellence, or OEM-specific training
Experience supporting HVAC startups, commissioning, or retrofit projects
Strong documentation skills and comfort using computerized maintenance management systems (CMMS)

Responsibilities

Diagnose, service, and repair refrigerant-based HVAC equipment including VRF/VRV systems, chillers, DX units, heat pumps, and rooftop units (RTUs)
Perform refrigerant recovery, charging, leak detection, brazing, and compressor repairs in compliance with EPA and safety standards
Troubleshoot HVAC electrical components, low-voltage controls, sensors, and automation devices
Monitor, adjust, and verify HVAC system performance using superheat/subcooling analysis and other diagnostic methods
Conduct scheduled preventive maintenance inspections and document findings, repairs, and refrigerant usage
Support system startups, commissioning activities, and functional testing for new or upgraded equipment
Communicate technical issues and recommended solutions to facility teams and management