EPA 608 Universal study guide
EPA 608 Universal · Work through your exam, one topic at a time.
Section 608 Technician Certification is the credential required by EPA regulations (40 CFR Part 82, Subpart F) under Section 608 of the Clean Air Act for technicians who maintain, service, repair, or dispose of equipment that could release refrigerants into the atmosphere. The credential comes in four forms, each matched to the equipment a technician intends to work on: Type I for small appliances, Type II for high- or very high-pressure appliances other than small appliances and MVACs, Type III for low-pressure appliances, and Universal for all types of equipment. The EPA 608 Universal study guide has 4 sections and about 1,388 words.
01Type I - Small Appliances
Type I applies to small appliances: equipment that is fully manufactured, charged, and hermetically sealed in a factory with five pounds or less of refrigerant. Household refrigerators and freezers, window and PTAC air conditioners, dehumidifiers, under-counter ice machines, water coolers, and vending machines are the classic examples.
336 words, about 2 min02Type II - High-Pressure and Very High-Pressure Appliances
Type II covers high-pressure and very high-pressure appliances other than small appliances and MVACs: split systems, packaged rooftop units, positive-pressure chillers, and anything using R-22, R-134a, R-407C, R-410A, R-32, or R-744. Very high pressure means a saturated pressure above roughly 220 psig at 104°F, or a critical temperature below 104°F.
349 words, about 2 min03Type III - Low-Pressure Appliances
Low-pressure appliances use refrigerants whose evaporator pressure sits below atmospheric, so the machine runs in a vacuum and air and moisture leak in rather than refrigerant leaking out. R-11, R-113, and R-123 centrifugal chillers are the standard examples.
353 words, about 2 min04Universal - All Equipment Types
The Universal exam is the core section plus Type I, II, and III sections, and you must reach 70% on each. In practice, the Universal credential means you classify the appliance first, then apply that type rules.
350 words, about 2 min