Freon
Freon is a common brand name for refrigerants used in air conditioning systems, refrigerators, and other cooling equipment. While "Freon" is a trademarked name by Chemours (formerly DuPont), technicians often use it to refer to any type of refrigerant. It's like how people say "Kleenex" for any tissue. These chemicals are essential for cooling systems to work properly. Due to environmental concerns, older types of Freon are being phased out and replaced with more eco-friendly alternatives. Technicians need special certification to handle these materials because they can be harmful if not managed correctly.
Examples in Resumes
EPA certified for safe handling and disposal of Freon and other refrigerants
Performed maintenance and Freon recharge on commercial HVAC systems
Diagnosed and repaired Freon leaks in residential air conditioning units
Typical job title: "HVAC Technicians"
Also try searching for:
Where to Find HVAC Technicians
Professional Organizations
Job Boards
Training Resources
Example Interview Questions
Senior Level Questions
Q: How do you handle a major commercial system that needs a complete Freon replacement?
Expected Answer: A senior technician should explain the process of safely recovering old refrigerant, checking for leaks, making necessary repairs, vacuum testing the system, and properly charging with new refrigerant while following all EPA guidelines.
Q: What steps do you take to diagnose an underperforming cooling system that might have a Freon issue?
Expected Answer: Should describe a systematic approach including checking pressure readings, looking for frost patterns, testing for leaks, and understanding when recharge is needed versus when there might be other issues.
Mid Level Questions
Q: What safety procedures do you follow when handling Freon?
Expected Answer: Should mention proper safety equipment (gloves, goggles), working in ventilated areas, following EPA guidelines, and proper storage and disposal procedures.
Q: How do you determine the correct amount of Freon for a system?
Expected Answer: Should explain checking manufacturer specifications, using charging scales, monitoring pressure gauges, and understanding the importance of not overcharging.
Junior Level Questions
Q: What are the basic tools needed for handling Freon?
Expected Answer: Should list basic tools like manifold gauges, recovery machine, vacuum pump, and leak detectors, and explain their basic uses.
Q: Why is EPA certification required for handling Freon?
Expected Answer: Should explain that Freon can be harmful to the environment if not handled properly, and that certification ensures proper handling and safety procedures are followed.
Experience Level Indicators
Junior (0-2 years)
- Basic understanding of refrigeration cycles
- EPA Section 608 Certification
- Basic system maintenance
- Simple leak detection
Mid (2-5 years)
- Complex system diagnostics
- Refrigerant recovery and replacement
- Multiple system type experience
- Advanced leak repair
Senior (5+ years)
- Commercial system expertise
- Team leadership and training
- Advanced troubleshooting
- Knowledge of all refrigerant types
Red Flags to Watch For
- No EPA certification
- Unfamiliar with safety protocols
- No experience with modern refrigerants
- Poor understanding of environmental regulations
- Lack of proper tool knowledge
