R-22
R-22, also known as Freon, is a type of refrigerant that was commonly used in air conditioning systems before being phased out due to environmental concerns. When reviewing resumes in the HVAC industry, you'll often see references to R-22 because technicians need specific certifications and experience to handle it. Since this refrigerant is being replaced with newer alternatives, technicians who can work with both R-22 and newer refrigerants are particularly valuable. It's similar to how mechanics need to know how to work on both older and newer car models.
Examples in Resumes
Certified in handling R-22 and modern refrigerant alternatives
Performed maintenance and repairs on R-22 systems for residential and commercial clients
Successfully managed R-22 to newer refrigerant conversion projects
EPA certified for Freon and R-22 handling
Typical job title: "HVAC Technicians"
Also try searching for:
Where to Find HVAC Technicians
Professional Associations
Job Boards
Training Resources
Example Interview Questions
Senior Level Questions
Q: How do you handle the conversion of an R-22 system to newer refrigerants?
Expected Answer: A senior technician should explain the step-by-step process of safely removing R-22, evaluating system compatibility, and either retrofitting or replacing components for the new refrigerant, while ensuring compliance with EPA regulations.
Q: What strategies do you use to manage R-22 inventory given its phase-out?
Expected Answer: Should discuss methods for recycling and reclaiming R-22, maintaining proper documentation, and advising customers on cost-effective solutions including system upgrades.
Mid Level Questions
Q: What safety procedures do you follow when handling R-22?
Expected Answer: Should describe proper use of safety equipment, leak detection procedures, and EPA guidelines for handling and disposing of R-22.
Q: How do you diagnose if an R-22 system needs repair or replacement?
Expected Answer: Should explain checking for leaks, evaluating system efficiency, and considering factors like equipment age and repair costs versus replacement costs.
Junior Level Questions
Q: What certifications are required to handle R-22?
Expected Answer: Should mention EPA Section 608 certification requirement and be able to explain the different types of certification levels.
Q: What are the basic safety precautions when working with R-22?
Expected Answer: Should discuss wearing proper protective equipment, ensuring good ventilation, and following basic safety protocols.
Experience Level Indicators
Junior (0-2 years)
- Basic R-22 handling safety procedures
- EPA certification
- Basic maintenance and servicing
- Simple leak detection
Mid (2-5 years)
- Advanced troubleshooting of R-22 systems
- Refrigerant recovery and recycling
- System conversion experience
- Complex repair procedures
Senior (5+ years)
- System design and replacement planning
- Team leadership and training
- Advanced diagnostic capabilities
- Retrofit project management
Red Flags to Watch For
- Lack of proper EPA certification
- No experience with modern refrigerant alternatives
- Unfamiliarity with safety protocols and regulations
- No knowledge of proper documentation and record-keeping
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