Chiller Technician

Job Title: Chiller Technician - Data Center OperationsWhat this job involves: As a Chiller Technician at JLL, you will specialize in the operation, maintenance, and repair of critical chiller systems that provide essential cooling for data center facilities. You'll work with large-capacity centrifugal, screw, and scroll chillers, along with associated cooling towers, pumps, and heat rejection systems that are vital to maintaining optimal operating conditions for mission-critical IT infrastructure. This specialized role requires deep expertise in refrigeration systems and the ability to ensure continuous cooling operations in a 24/7 environment.Your day-to-day tasks will include:• Operate, maintain, and repair centrifugal, screw, and scroll chillers ranging from 100 to 2000+ tons capacity• Perform comprehensive preventive maintenance on chiller systems including compressor inspections, oil analysis, and refrigerant management• Monitor and optimize chilled water systems, cooling towers, condenser water pumps, and variable frequency drives (VFDs)• Troubleshoot complex chiller malfunctions using advanced diagnostic tools, vibration analysis, and thermal monitoring equipment• Execute planned maintenance shutdowns while coordinating with operations team to maintain cooling redundancy• Respond to critical chiller alarms and emergency cooling system failures with immediate technical expertise• Maintain accurate logs of chiller performance data, energy consumption, and maintenance activities• Support chiller retrofits, upgrades, and efficiency improvement projects• Ensure compliance with refrigerant regulations, environmental standards, and safety protocolsDesired experience and technical skills:Requirements:• Minimum 5 years of experience with commercial/industrial chiller systems• EPA Universal Refrigerant Handling certification (Type I, II, III, and Universal)• Experience with centrifugal and screw chiller technologies from major manufacturers• Knowledge of chilled water systems, cooling towers, and hydronic distribution networks• Ability to read and interpret chiller schematics, control sequences, and technical manuals• Proficiency with refrigerant leak detection, recovery, and system charging procedures• Strong mechanical and electrical troubleshooting skills for complex refrigeration systems• Physical ability to work in mechanical rooms, confined spaces, and lift up to 50 lbs• Availability for on-call emergency response and rotating shift coveragePreferred:• Data center or mission-critical facility experience• Experience with Carrier, Trane, York, or Daikin chiller systems• Knowledge of building automation systems and chiller plant optimization• Certified Chiller Technician (CCT) or similar industry certification• Experience with magnetic bearing centrifugal chillers and advanced control systems• Associate degree in HVAC, Mechanical Engineering, or Refrigeration Technology• Energy efficiency certification (CEM, CDSM, or equivalent)

Created: 2025-09-10