Trainer Commercial Refrigeration

Department: Field Operations

Reports To: Field Operations Leader

Location: Charlotte NC

Travel Requirement: 2560% depending on business need

Employment Type: Full-Time

The Refrigeration CO₂ (R744) In-House Trainer is responsible for the development delivery and continuous improvement of technical training programs supporting commercial refrigeration professionals working on CO₂ transcritical systems. This role ensures consistent safe and high-quality execution across service commissioning and technical support teams by standardizing training best practices and performance expectations. The trainer partners closely with Field Operations Technical Support Engineering Controls and EHS to reduce repeat issues improve first-time fix rates and accelerate technician competency development.

• Design develop and deliver instructor-led hands-on and blended training programs for CO₂ (R744) refrigeration systems.
• Establish structured training paths (Foundations Intermediate Advanced) for technicians commissioning engineers controls specialists and field leadership.
• Create and maintain course materials including lesson plans slide decks lab exercises simulations job aids assessments and certification requirements.
• Provide on-site coaching and mentorship during critical system start-ups commissioning activities and complex service events.
• Standardize commissioning procedures troubleshooting workflows SOPs checklists and documentation across all regions.
• Work closely with Technical Support to convert recurring field issues and root cause findings into targeted training content.
• Collaborate with Engineering and Controls teams to ensure training reflects current designs sequences of operation firmware and best practices.
• Coordinate with EHS to ensure all training reinforces CO₂ safety requirements high-pressure protocols and regulatory compliance.
• Track training completion certification status and technician progression through LMS or internal tracking tools.
• Continuously evaluate training effectiveness using field performance metrics technician feedback callbacks and safety data.

• CO₂ Safety & Compliance: properties of CO₂ high-pressure hazards pressure relief devices lockout/tagout confined space awareness PPE recovery and venting considerations and emergency response.
• System Fundamentals: transcritical operation booster architectures gas coolers flash gas bypass parallel compression oil management suction groups and heat reclaim strategies.
• Components & Piping: compressors valves pressure regulators ejectors (where applicable) sensors oil separators accumulators gas cooler fan control and piping best practices.
• Controls & Commissioning: controller logic setpoints I/O checkout alarm management sensor validation network basics trending and performance verification.
• Troubleshooting & Service: structured diagnostic approach repeat failure prevention moisture/contamination management leak detection evacuation charging and optimization.
• Documentation & Reporting: commissioning reports service documentation as-built verification root cause analysis (RCA) and corrective action tracking.

• Minimum of 5 years of hands-on commercial refrigeration experience.
• At least 2 years of direct experience commissioning and servicing CO₂ (R744) transcritical refrigeration systems.
• Proven ability to troubleshoot complex system and controls issues.
• Demonstrated experience training mentoring or leading technicians in a formal or informal capacity.
• Strong written and verbal communication skills with the ability to explain complex technical concepts clearly.
• Proficiency with digital collaboration tools and learning platforms (e.g. MS Teams SharePoint LMS systems).
• Experience in adult learning instructional design or technical education (preferred).
• Advanced CO₂ system experience including parallel compression ejectors or integrated energy optimization strategies (preferred).
• Familiarity with major refrigeration control platforms (e.g. Carel Danfoss CPC Emerson) (preferred).
• OSHA 10/30 certification manufacturer certifications or equivalent safety credentials (preferred).
• Experience supporting field commissioning programs or national rollout initiatives (preferred).

Ability to work safely in mechanical rooms rooftops and active construction environments. Must be able to lift up to 50 lbs climb ladders and use standard refrigeration tools. Travel is expected up to 2560% of the time including occasional overnight and after-hours work during critical startups or training events.