A technician is unsure which required vacuum applies to a high-pressure appliance during recovery. Which two factors determine the required evacuation level?
Explanation
Once you know an appliance is high-pressure, 40 CFR §82.156 Table 1 turns on two things: whether its full charge is under 200 pounds or 200 pounds and up, and whether your recovery equipment was made before or after November 15, 1993. With post-1993 equipment a high-pressure appliance is 0 inches Hg under 200 pounds and 10 inches Hg at 200 pounds or more. Certification type, day of the week, oil type, cylinder color and outdoor temperature play no part.
Law Reference: 40 CFR §82.156This topic, taught in full in the EPA Section 608 Certification guide. EPA 608 Universal Study Guide (2026) — Core + Type I/II/III, with the 2027 A2L update — PDF + EPUB, $14.99 · 14-day refund →
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