The most cost-effective method of recovering...

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Question 1 of 2066636eee28f7522a1c51e790

The most cost-effective method of recovering refrigerant from a low-pressure chiller with more than 500 lbs. of refrigerant and to meet EPA requirements is to recover the refrigerant using what protocol?

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Question 1 of 20

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🔍 Key Concepts

• EPA refrigerant recovery requirements for low-pressure chillers over 500 lbs • Difference between liquid recovery and vapor recovery in terms of speed and cost • Typical sequence of steps used by technicians to recover large refrigerant charges efficiently

💭 Think About

• For a large quantity of refrigerant, which phase (liquid or vapor) is usually removed first to save time and energy? • How does using both a liquid pump and a vapor recovery unit together change efficiency compared to using just one method? • Think about what is left in the system after most of the refrigerant has been removed—what form is it in, and which type of machine is best suited to remove it?

✅ Before You Answer

• Identify which choices use both liquid and vapor recovery versus only one method • Check which sequence would remove the bulk volume fastest (especially with more than 500 lbs) • Confirm which method best ensures compliance with EPA-required final recovery levels without unnecessary extra time or equipment use

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