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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

  1. What is the correct color coding for a refrigerant recovery cylinder that has been used and contains refrigerant?

    Answer: Yellow with a gray collar

    Used refrigerant recovery cylinders are identified by a yellow body with a gray collar, distinguishing them from new refrigerant cylinders which use manufacturer colors.

  2. Which EPA 608 certification type covers small appliances such as household refrigerators and window air conditioners?

    Answer: Type I

    Type I certification covers small appliances containing five pounds or less of refrigerant, including household refrigerators and window AC units.

  3. When recovering refrigerant from a system with a hermetically sealed compressor that is NOT operational, what recovery efficiency must be achieved for systems containing less than 200 lbs of refrigerant manufactured after November 15, 1993?

    Answer: 95%

    For systems manufactured after November 15, 1993, with non-operational compressors and less than 200 lbs refrigerant, 90% recovery efficiency or 4 inches Hg vacuum is required.

  4. R-744 is the refrigerant designation for which substance?

    Answer: Carbon dioxide

    R-744 is the ASHRAE designation for carbon dioxide (CO2), which is increasingly used as a natural refrigerant in transcritical refrigeration systems.

  5. What is the purpose of a refrigerant identifier (analyzer) before recovery?

    Answer: To verify refrigerant purity and detect contaminants or cross-contamination

    A refrigerant identifier analyzes the recovered refrigerant to verify its type and detect cross-contamination or contaminants before it is sent to a reclaimer.

  6. Which of the following refrigerants is considered a 'natural' refrigerant?

    Answer: R-717

    R-717 is ammonia, a natural refrigerant with zero ODP and zero GWP, widely used in industrial refrigeration systems.

  7. Under EPA Section 608, which entity is responsible for certifying refrigerant reclaimers?

    Answer: The EPA itself

    The EPA certifies refrigerant reclaimers under Section 608 and maintains a list of approved reclaimers who must meet ARI Standard 700 purity requirements.