Changing from R-22 to R-410a


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Old 01-03-08, 12:04 PM
C
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Changing from R-22 to R-410a

When replacing a R-22 split system heat pump with a R-410a HP, can the refrigerant lines be re-used if properly cleaned with Nitrogen?

What are the possible dangers of reusing the existing line set?

Thank you in advance for your answers.
 
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Old 01-03-08, 12:23 PM
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I just answered my own question. I found this article, Link:

http://www.contractingbusiness.com/2...se/77425/Issue

It makes a very strong case for replacement of the line set but goes through what to do if the replacement is near impossible.
 
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Old 01-03-08, 12:31 PM
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Unless it's just impossible you should replace the line set. The article you posted tells it all.
 
 

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