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A2L Practice Solution Test Questions with Correct Answers (Grade A+)

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A2L Practice Solution Test Questions with Correct Answers (Grade A+)

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A2L Practice Solution Test Questions with Correct Answers (Grade
A+)

Question 1: What is a potential health consequence of inhaling hydrogen fluoride combustion
by-products from A2L refrigerants?

Answer: Pulmonary Edema

Question 2: When did the phase-down of R-410A begin?

Answer: 2022

Question 3: When will the EPA prohibit the production of new equipment using R-410A?

Answer: 2025

Question 4: What does the classification 'A2L' stand for?

Answer: Non-toxic, Flammable, Low Burning Velocity

Question 5: Which item is NOT required on the UL-mandated label for flammable refrigerant
systems?

Answer: Name of the manufacturer

Question 6: What information must be included on the UL-mandated label for flammable refrigerant
systems?

Answer: Evacuation level achieved, pressure used for leak testing, and
the date the test and evacuation were completed

Question 7: Why should standard recovery machines for HFC/CFC refrigerants not be used with HC
refrigerants?

Answer: They contain ignition sources like on-off switches, relays, and
pressure switches

Question 8: What is a required safety feature for indoor A2L refrigerant systems?

Answer: A leak detection system




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