Industrial Refrigeration Mechanic-Ammonia/CO2

Leoforce; Tucson (AZ); Vor Ort; USD 76.000 - 96.000; Vollzeit

Benefits dieser Stelle

Union Benefits

Great Culture

Competitive base pay

Zusammenfassung

Leoforce is seeking an Industrial Ammonia Technician in Tucson to install, maintain, troubleshoot, and repair ammonia (R-717) and CO2 (R-744) refrigeration systems. You will handle screw compressors, read P&IDs, and ensure safety and regulatory compliance.

The ideal candidate has 5+ years of hands-on experience, RETA/OSHA knowledge, and the ability to work in cold environments while wearing PPE. On-call rotation and mentoring responsibilities are part of the role.

Qualifikationen

• 5+ years as industrial mechanic or refrigeration technician in industrial environments.
• Experience with ammonia (R-717) systems.
• Experience with CO2 (R-744) systems (transcritical, subcritical, or cascade).
• Hands-on maintenance of rotary screw compressors; ability to troubleshoot.
• Knowledge of OSHA PSM, EPA RMP, and IIAR standards.

Aufgaben

• Perform preventive, predictive, and corrective maintenance on ammonia and CO2 systems (compressors, condensers, evaporators, vessels, pumps, valves, controls).
• Service and troubleshoot rotary screw compressors, seals, bearings, rotors, seals, and oil systems.
• Diagnose performance issues; optimize efficiency, capacity, and energy usage.
• Conduct pump-downs, oil draining, refrigerant charging, leak detection, and isolation per lockout/tagout rules.
• Maintain maintenance logs and documentation for PSM/RMP compliance.
• Participate in PHAs, MOC, Mechanical Integrity Inspections, and emergency response as required.
• Read P&IDs, drawings, electrical schematics, and manuals.
• Work with PLC/microprocessor control panels to monitor and adjust parameters.
• Respond to after-hours calls; participate in on-call rotation.
• Mentor less experienced technicians and operators.

Kenntnisse

Industrial refrigeration experience

Mechanical aptitude

Reading P&IDs & drawings

Lockout/tagout safety

Troubleshooting & maintenance

Ausbildung

RETA Certification (CARO/CIRO)

EPA 608 Universal Certification

Tools

Mycom

GEA

Bitzer

Jobbeschreibung

Location: Tucson,AZ, US

Date Posted: 10-08-2026

Job Description

Experience:

Senior Level

Salary:

$55 - $70 per hour

Job Details

---------

We are looking for an Industrial Refrigeration Mechanic to install, maintain, troubleshoot, and repair industrial ammonia (R-717) and CO₂ (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 CO₂ 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 CO₂ (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.

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

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