Study Tip: The EPA 608 exam is closed book. Memorize: recovery is required before opening any refrigerant system. Venting refrigerant is illegal. Know the ODP and GWP values for R-22, R-410A, R-134a, R-32, and R-454B.
Question 1: Which of the following is used to flush debris out of the system?
- Nitrogen
- Oxygen
- Refrigerant
- Hydrogen
Student Reviews
No reviews yet — be the first to share your experience!
Leave a Review