This Jobot Job is hosted by: Christie Bauer
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Salary: $55 - $60 per hour
A bit about us:We are a mechanical contractor looking for an Industrial Ammonia Technician in Tucson
Why join us?Union Benefits
Great Culture
Competitive base pay
Job DetailsWe are looking for an Industrial Refrigeration Mechanic to install, maintain, troubleshoot, and repair industrial ammonia (R-717) and CO (R-744) refrigeration systems. The ideal candidate is a well-rounded industrial mechanic with deep hands-on experience with screw compressors and a strong commitment to safety, reliability, and regulatory compliance.
Key Responsibilities
- Perform preventive, predictive, and corrective maintenance on industrial ammonia and CO refrigeration systems, including compressors, condensers, evaporators, vessels, pumps, valves, and controls.
- Service, overhaul, align, and troubleshoot rotary screw compressors, including mechanical seals, bearings, rotors, slide valves, and oil systems.
- Diagnose system performance issues and make adjustments to optimize efficiency, capacity, and energy use.
- Safely perform pump-downs, oil draining, refrigerant charging, leak detection, and equipment isolation following lockout/tagout and line-break procedures.
- Maintain accurate maintenance logs, work orders, and system documentation in support of PSM and RMP compliance programs.
- Participate in Process Hazard Analyses (PHAs), Management of Change (MOC), Mechanical Integrity Inspections, and emergency response activities as required.
- Read and interpret P&IDs, mechanical drawings, electrical schematics, and manufacturer manuals.
- Work with PLC/microprocessor-based compressor control panels to monitor, troubleshoot, and adjust operating parameters.
- Respond to after-hours emergency calls and participate in an on-call rotation as needed.
- Mentor and support less experienced technicians and operators.
Required Qualifications
- 5+ years of hands-on experience as an industrial mechanic or industrial refrigeration technician in industrial refrigeration environments.
- Proven experience with ammonia (R-717) refrigeration systems.
- Experience with CO (R-744) refrigeration systems (transcritical, subcritical, or cascade).
- Strong hands-on experience with rotary screw compressor maintenance, rebuilds, and troubleshooting.
- Ammonia Refrigeration I & II training and/or RETA certification (CARO or CIRO).
- Working knowledge of OSHA PSM (29 CFR 1910.119), EPA RMP, and IIAR standards.
- Strong mechanical aptitude with the ability to use precision measuring tools, alignment equipment, and diagnostic instruments.
- Ability to work safely at heights, in confined spaces, and in cold or hot environments while wearing required PPE, including respirators.
- Valid driver's license
Preferred Qualifications
- Experience with Mycom, GEA (Grasso), and/or Bitzer compressors.
- Familiarity with other major equipment manufacturers (GEA, Tempest, Evapco, BAC).
- Experience with refrigeration control systems (GEA, Mycom, Tempest).
- EPA 608 Universal certification.
- Industrial electrical troubleshooting experience (motors, VFDs, starters).
- Experience in cold storage, or other industrial facilities.
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