Master Chiller Mechanic

Responsibilities

• Operate and monitor centrifugal, screw, scroll, and reciprocating chillers supporting semiconductor facility operations.
• Maintain chilled water, condenser water, glycol, and heat recovery systems to ensure stable and efficient operation.
• Review system pressures, temperatures, flows, approach temperatures, and equipment efficiencies.
• Identify abnormal operating conditions through monitoring SCADA/BMS trends, alarms, and system performance.
• Adjust operating parameters to maintain design conditions and optimize energy efficiency.
• Coordinate chiller staging, sequencing, and load balancing strategies across plant systems.
• Support seasonal startup and shutdown activities for chillers and associated utility systems.

Preventive Maintenance

• Execute OEM and site-specific preventive maintenance procedures for chillers and auxiliary equipment.
• Inspect, maintain, and troubleshoot compressors, condensers, evaporators, cooling towers, pumps, VFDs, valves, and actuators.
• Conduct tube inspections and coordinate condenser/evaporator tube cleaning activities.
• Replace filters, strainers, gaskets, seals, bearings, and other consumable components.
• Verify proper refrigerant charge and oil levels.
• Perform vibration analysis and alignment inspections on rotating equipment.

Corrective Maintenance & Troubleshooting

• Diagnose and resolve mechanical, electrical, refrigeration, and controls-related equipment failures.
• Troubleshoot issues including high condenser pressure, low evaporator pressure, surge conditions, oil system faults, refrigerant leaks, flow issues, compressor trips, sensor and instrumentation failures.
• Perform emergency repairs and equipment restoration activities to minimize operational downtime.
• Support root cause analysis (RCA) investigations and implementation of corrective actions.

Refrigeration System Responsibilities

• Handle refrigerants in compliance with EPA regulations and environmental requirements.
• Recover, evacuate, recharge, and leak-test refrigeration systems.
• Maintain refrigerant logs and environmental compliance documentation.
• Inspect purge systems and monitor non-condensable gas levels.
• Conduct refrigerant leak detection surveys and implement corrective actions.

Controls & Instrumentation

• Support verify operation of temperature, pressure, and flow instrumentation associated with chiller systems.
• Assist controls technicians with BAS/PLC integration troubleshooting and system diagnostics.
• Validate alarm functionality, safety devices, interlocks, and sequence-of-operations performance.
• Support controls verification and operational testing activities.

Reliability & Optimization

• Analyze operational data and performance trends to identify degradation and reliability concerns.
• Support energy optimization and efficiency improvement initiatives for chilled water and process cooling systems.
• Monitor Key Performance Indicators (KPIs) including kW/ton, chiller efficiency, MTBF, runtime distribution, PM compliance.
• Recommend reliability improvements, operational enhancements, and system upgrades.
• Support predictive maintenance strategies including vibration analysis and thermography.

Safety & Compliance

• Follow all EHS procedures, LOTO requirements, and semiconductor facility safe work practices.
• Conduct Job Hazard Analysis (JHA) and pre-task planning activities prior to maintenance execution.
• Ensure compliance with OSHA, EPA, and site-specific environmental and safety regulations.
• Support emergency response activities and incident investigations.
• Maintain safe handling practices for refrigerants, chemicals, and pressurized systems.

Qualifications

• 8+ years of experience operating and maintaining industrial chillers, refrigeration, or mission-critical cooling systems.
• Strong troubleshooting skills across mechanical, electrical, refrigeration, and controls systems.
• Experience working in semiconductor, mission-critical, industrial, or high-tech manufacturing facilities preferred.
• Ability to read and interpret mechanical drawings, P&IDs, equipment manuals, and control sequences.
• Strong understanding of chilled water systems, refrigeration cycles, and HVAC operations.

Skills

• 8+ years of experience operating and maintaining industrial chillers, refrigeration, or mission-critical cooling systems.
• Strong troubleshooting skills across mechanical, electrical, refrigeration, and controls systems.
• Experience working in semiconductor, mission-critical, industrial, or high-tech manufacturing facilities preferred.
• Ability to read and interpret mechanical drawings, P&IDs, equipment manuals, and control sequences.
• Strong understanding of chilled water systems, refrigeration cycles, and HVAC operations.

Benefits

• Medical, Dental and Vision Insurance
• Life, Short-Term, Long-Term Disability Insurance
• Training and Education Assistance
• 401k Retirement Plan
• Extra Annual Leave with Years of Service
• Maternity/Paternity Leave
• Recognition Rewards