Study Tip: The EPA 608 exam is closed book. Memorize: recovery is required before opening any refrigerant system. Venting refrigerant is illegal. Know the ODP and GWP values for R-22, R-410A, R-134a, R-32, and R-454B.
Question 1: A refrigerant system is dehydrated to …………………..
- Remove the oil and vapour
- Remove the water and moisture
- Remove the nitrogen trapped in system
- Remove the refrigerant
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