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    Exam 11: Retrofit and Future Trends
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    R-744 Is an Acceptable Substitute for Both R-12 and R-134a
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R-744 Is an Acceptable Substitute for Both R-12 and R-134a

Question 35

Question 35

True/False

R-744 is an acceptable substitute for both R-12 and R-134a in a refrigerant system retrofit.

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