Sr. Refrigeration Laboratory Technician

Lennox International; Stone Mountain (GA); On-site; USD 71,000 - 93,000; Full time

Benefits offered by this job

Tuition reimbursement

Medical, dental, and vision insurance

401(k) retirement plan

Short-term disability insurance

Paid time off and holidays

Job summary

Lennox International in Stone Mountain, GA, is seeking a Sr. Refrigeration Laboratory Technician to support testing and development of refrigeration systems in a laboratory setting.

The role requires substantial HVAC/R hands-on experience and the ability to set up and diagnose complex test environments. The candidate will work with engineers on test procedures, analyze data, and ensure safety and quality compliance while maintaining equipment and contributing to product development projects.

Qualifications

• Associate degree, technical certification, or vocational training in HVAC, Refrigeration, Mechanical Technology or a related field.
• Minimum of 3 years of hands-on experience servicing, troubleshooting, installing, or commissioning HVAC/R equipment.

Responsibilities

• Set up, operate, monitor, and maintain refrigeration test equipment.
• Support product development, performance testing, validation, and investigative projects.
• Install, modify, and repair refrigeration systems, components, and instrumentation.
• Troubleshoot mechanical, electrical, and refrigeration system issues independently.
• Collect, analyze, and document test data and observations.
• Assist engineers in developing test procedures and executing laboratory test plans.
• Ensure laboratory equipment is calibrated, maintained, and operating safely.
• Maintain compliance with laboratory safety procedures and environmental regulations.
• Support facility and laboratory refrigeration systems as needed.
• Provide technical recommendations regarding equipment operation, test setup improvements, and troubleshooting solutions.

Skills

HVAC/R experience

Troubleshooting

Electrical systems

Instrumentation

Education

Associate degree or technical certification

Tools

Wiring diagrams

Control schematics

Lab instrumentation

Diagnostic tools

Job description

Who We Are

Lennox (NY SE: LII) Driven by 130 years of legacy, HVAC and refrigeration success, Lennox provides our residential and commercial customers with industry-leading climate-control solutions. At Lennox, we win as a team, aiming for excellence and delivering innovative, sustainable products and services. Our culture guides us and creates a workplace where all employees feel heard and welcomed. Lennox is a global community that values each team member’s contributions and offers a supportive environment for career development. Come, stay, and grow with us.

Heatcraft Refrigeration is a long-standing leader in the world of commercial refrigeration, providing climate-control solutions. Their state-of-the-art manufacturing facilities in the cities of Stone Mountain and Tifton, Georgia, produce evaporators, condensers, compressor racks, and other top-quality refrigeration products for their six market-leading brands: Bohn, Larkin, Climate Control, Chandler, Magna Industrial and InterLink. Heatcraft products are primarily used to preserve food and other perishables in supermarkets, convenience stores, restaurants, warehouses and distribution centers, in addition to other applications such as data centers, pharmaceutical and industrial process cooling.

What Drives Success

Location: Stone Mountain: 100% Onsite

The Sr. Refrigeration Laboratory Technician is responsible for supporting the testing, evaluation, troubleshooting, and development of refrigeration systems in a laboratory environment. This role requires a highly skilled technician with substantial hands‑on experience working with commercial or industrial refrigeration equipment. The successful candidate will independently set up, operate, diagnose, modify, and maintain test systems while ensuring compliance with safety and quality standards.

Due to the technical complexity of the testing environment, candidates must possess meaningful HVAC/R experience and demonstrate a strong understanding of refrigeration systems, controls, electrical systems, instrumentation, and troubleshooting methodologies.

Key Responsibilities

• Set up, operate, monitor, and maintain refrigeration test equipment.
• Support product development, performance testing, validation, and investigative projects.
• Install, modify, and repair refrigeration systems, components, and instrumentation.
• Troubleshoot mechanical, electrical, and refrigeration system issues independently.
• Collect, analyze, and document test data and observations.
• Assist engineers in developing test procedures and executing laboratory test plans.
• Ensure laboratory equipment is calibrated, maintained, and operating safely.
• Maintain compliance with laboratory safety procedures and environmental regulations.
• Support facility and laboratory refrigeration systems as needed.
• Provide technical recommendations regarding equipment operation, test setup improvements, and troubleshooting solutions.

What We Are Looking For

Required Qualifications

• Associate degree, technical certification, or vocational training in HVAC, Refrigeration, Mechanical Technology, Electrical Technology or a related field.
• Minimum of 3 years of hands‑on experience servicing, troubleshooting, installing, or commissioning HVAC/R equipment.

Preferred Experience

Candidates should possess one or more of the following:

• 3+ years as an HVAC/R service technician or installer with demonstrated field troubleshooting experience.
• 5+ years of responsibility for commercial or industrial HVAC/R systems as a facilities engineer, facilities technician, or maintenance specialist.
• Experience working in an HVAC or refrigeration laboratory environment.
• Vocational or technical school graduates with significant documented field experience in HVAC/R service and repair.

Required Technical Skills

• Strong knowledge of refrigeration cycles, airflow systems, compressors, condensers, evaporators, and expansion devices.
• Ability to read and interpret wiring diagrams, control schematics, piping diagrams, and technical documentation.
• Experience with electrical troubleshooting, controls, sensors, and instrumentation.
• Familiarity with refrigerant charging, recovery, leak detection, and system performance analysis.
• Proficiency using diagnostic tools, gauges, multimeters, data acquisition systems, and other laboratory instrumentation.
• Working knowledge of laboratory safety practices and industry standards.

Preferred Qualifications

• EPA Section 608 Certification.
• Experience with data acquisition systems and laboratory instrumentation.
• Experience supporting engineering product development or validation testing.
• Understanding of commercial refrigeration, heat pumps, or air conditioning systems.
• Ability to fabricate, braze, solder, and assemble refrigeration piping systems.

Desired Competencies

• Strong troubleshooting and analytical skills.
• Ability to work independently with minimal supervision.
• Effective communication and documentation skills.
• Detail-oriented with a strong commitment to safety and quality.
• Collaborative team player capable of supporting engineers, technicians, and project teams.

What We Offer

Compensation: This is a salaried non-exempt role. This means that employees are paid a salary and also receive overtime pay when they work more than 40 hours in a week (or as otherwise required by state law). The starting salary range for this role and market is between $71,000 - $93,000 annually. Factors that may affect starting salary include geography/market and the skills, education, experience, and other qualifications of the successful candidate.

Employees in this role are also eligible for abonus in accordance with the terms of the Company’s applicable plan.

Benefits:Subject to applicable eligibility requirements, the following benefits are offered for this role: tuition reimbursement; medical, dental, and vision insurance; prescription drug coverage; 401(k) retirement plan; short-term disability insurance; 8 weeks paid birthing leave; 2 weeks paid bonding leave; life and long-term disability insurance.

Depending on date of hire, and subject to applicable eligibility requirements, new employees in this role also receive up to: 12 days paid time off, 2 paid well-being days, 1 paid volunteer day, 10-11 paid holidays, and 3 floating holidays per year.

Our Culture: At Heatcraft, our Core Values of Integrity, Respect & Excellence are ingrained in the fabric of the organization. They define our culture – which is about how we do business and how we treat others. Heatcraft is not just a workplace; we are a global community that values each team member’s contributions. As an equal opportunity employer, we are committed to recruit, develop, and retain talented individuals from a wide range of backgrounds, ensuring that everyone has the opportunity to succeed and contribute to our continued growth and success. At Heatcraft, you’ll take pride in our brands, knowing you are part of something special. Come, stay, and grow with us!

Disclaimers:The compensation and benefits information is accurate as of the date of this posting. Lennox reserves the right to modify this information at any time, with or without notice, subject to applicable law.

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