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In a residential system that presently has a 3/8 -5/8'' lineset 30 ft long on a R22 system, can a 2.5 ton 410A system work on that size lineset?

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  • Jeremy Reddick
    Jeremy Reddick May 11, 2010

    NOOOOO. The brazes will not hold up and you will be mixing the different oils. You are upgrading to a lot higher pressure unit, that needs to have its own set of lines ran and be brazed correctly to not break under the pressure



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Look at the manufacturer's instructions and it will tell you how much line set the factory charge is good for. Don't plan on using the same line set that was hooked to the R22 unit as R22 and R410a use different types of oil that are not compatible. Hope this helps.

Posted on May 05, 2010


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