EPA 608 Type II · Recovery Requirements · Hard
An R-134a system holds 250 lbs. With post-1993 recovery equipment, what level is required?
Answer: B. 15 inches of mercury vacuum.
- A0 psig.
- B15 inches of mercury vacuum.✓ Correct
- C10 inches of mercury vacuum.
- D25 mm Hg absolute.
Why B is right
R-134a is a medium-pressure refrigerant (45 to 170 psia at 104°F). For medium-pressure appliances of 200 lbs or more, Table 1 of 40 CFR 82.156 sets 15 inHg with post-1993 equipment and 4 inHg with older equipment; below 200 lbs it is 10 inHg.
More Type II questions
- For a repair that isn't major, what level may a high-pressure appliance be evacuated to instead of the Table 1 vacuum?
- What evacuation level does Table 1 require for a very high-pressure appliance, such as one using R-23?
- What evacuation level is required for a Type II appliance with less than 200 lbs of R-22?
- What evacuation level is required for a Type II appliance with 200 lbs or more of R-22?
- With post-1993 recovery equipment, what level is required before replacing the compressor on a 150-lb R-410A system?
Go deeper with the study guide EPA 608 Evacuation Levels: The Required Vacuum by Appliance, try the free 10-question test or browse all EPA 608 practice questions.
A practice question written for study, checked against 40 CFR Part 82, Subpart F. It is not an official EPA exam question, and this site is not affiliated with the U.S. EPA.