EPA 608 Refrigerant Certification Flashcards
7 cards from real HVAC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 EPA 608 Refrigerant Certification flashcards as text
Which refrigerant blend is an azeotrope, meaning it behaves like a single-component refrigerant with no temperature glide?
Answer: R-410A
R-410A is a near-azeotropic blend of R-32 and R-125 with minimal temperature glide (less than 0.1°F), behaving essentially like a single-component refrigerant.
What does the AIM Act (American Innovation and Manufacturing Act) primarily authorize the EPA to do?
Answer: Phase down the production and consumption of HFCs in the United States
The AIM Act authorizes the EPA to phase down U.S. production and consumption of HFCs by 85% from baseline levels by 2036.
A technician is working on a centrifugal chiller using R-11. Which EPA 608 certification type is required?
Answer: Type II
Type II certification covers high-pressure and very high-pressure appliances, but centrifugal chillers using R-11 operate at low pressure, requiring Type III certification.
What condition is indicated when the suction line of an air conditioning system is heavily frosted all the way back to the compressor?
Answer: Flooded evaporator with liquid returning to the compressor
Frost extending back to the compressor indicates liquid refrigerant is returning (flooding back), which can cause liquid slugging and compressor damage.
Under EPA 608, what must be included on the label of a refrigerant recovery cylinder?
Answer: Refrigerant type, whether it is mixed with other refrigerants, and whether it contains contaminants
Recovery cylinder labels must identify the refrigerant type, disclose if it has been mixed with other refrigerants, and indicate whether it contains contaminants.
Which of the following best describes 'refrigerant reclamation' under EPA 608?
Answer: Reprocessing recovered refrigerant to meet ARI 700 purity standards for resale
Reclamation involves reprocessing recovered refrigerant at an EPA-certified facility to meet ARI Standard 700 purity specifications, allowing it to be resold.
What is the recommended action if a technician suspects a refrigerant cylinder has been overfilled beyond 80% of its water capacity?
Answer: Return it to the supplier without using it
An overfilled cylinder is a serious safety hazard and should be returned to the supplier; never use, heat, or attempt to vent an overfilled refrigerant cylinder.