EPA 608 case studies
EPA 608 · Put your knowledge to work in context.
Section 608 Technician Certification is the U.S. Environmental Protection Agency credential required under EPA regulations at 40 CFR Part 82, Subpart F, issued under Section 608 of the Clean Air Act. Technicians who maintain, service, repair, or dispose of equipment that could release ozone-depleting refrigerants into the atmosphere must be certified, and since January 1, 2018 that same requirement extends to appliances containing most substitute refrigerants, including HFCs. A candidate earns the credential by passing an EPA-approved test administered by an EPA-approved certifying organization; EPA writes the rule but does not itself give the exams. The EPA 608 case studies are 5 cases and about 1,834 words.
1The Painted-Over Nameplate
Your company holds only a Type I certification. A customer asks you to service three units in a small bakery: a 4.2 lb R-134a display cooler, a 4.8 lb R-404A under-counter freezer, and a reach-in freezer whose nameplate is painted over.
416 words, about 2 min2Top-Off at the Strip Mall
You are a Type II technician at a strip mall. A 12.5-ton R-410A packaged rooftop unit has a nameplate charge of 24 lb.
373 words, about 2 min3Purge Unit at the Hospital
A hospital has a 400-ton R-123 centrifugal chiller with a 650-lb charge. The machine runs below atmospheric pressure.
349 words, about 2 min4One Universal Tech, Three Refrigerants
You are the only Universal-certified technician at a food-processing plant. In one day you must recover 3.8 lb of R-134a from a water cooler, 18 lb of R-22 from a walk-in freezer, and 250 lb of R-123 from a chiller.
353 words, about 2 min5Leak Rate on a 75-Pound R-22 System
A Type II technician maintains a 75-lb R-22 comfort-cooling system manufactured in 2005. Records show 12 lb of R-22 was added in June and 10 lb in August; no other refrigerant was added in the past 12 months.
343 words, about 2 min