EPA Section 608 Universal Certification ExamType II (High-Pressure Appliances)Easy
A technician is preparing to recover refrigerant from a high-pressure appliance containing 20 pounds of R-410A. The appliance was manufactured in 2005. According to EPA regulations, what is the minimum percentage of refrigerant that must be recovered if the recovery unit was manufactured after November 15, 1993?
- A90%
- B95%
- C70%
- D80%
Show answer & explanationAnswer & explanation
Correct answer: A. 90%
For high-pressure appliances with more than 10 pounds of refrigerant, and using recovery equipment manufactured after November 15, 1993, the EPA requires a recovery rate of 90%. This ensures efficient refrigerant removal and compliance with environmental standards.
Why the other options are wrong
- B. This rate applies to very high-pressure appliances, not typical high-pressure systems.
- C. This rate is generally for low-pressure appliances, not high-pressure systems.
- D. This rate is for appliances with less than 10 pounds of refrigerant, or pre-1993 recovery equipment.
High-Pressure Appliance Recovery Standards (Post-1993 Equipment)
EPA regulations specify minimum recovery percentages for high-pressure appliances based on the amount of refrigerant and the manufacturing date of the recovery equipment.
- For high-pressure appliances with >10 lbs of refrigerant, 90% recovery is required with post-1993 equipment.
- For high-pressure appliances with ≤10 lbs of refrigerant, 80% recovery is required with post-1993 equipment.
- Older recovery equipment (pre-1993) has lower recovery rate requirements.
Memory trick: High-pressure systems need HIGH recovery.