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  1. #1
    Join Date
    Jul 2008
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    Lineset replacement for R-22 to R-410a

    I am interviewing contractors to replace my air and furnace and are getting conflicting messages on the converting from my current system (Carrier EN038) series from 1985 to an R-410A based system. More specifically, I have heard that you can flush and drain linesets as long as the tubing is flexible and the joints are hard soldered and the issues are with hard copper tubing linesets. Then I have also heard that it is not a good idea to ever re-use line sets whether they are hard tubing or flex tubing. Sorry, I may be off in my terminology as I am just a novice. Any Insight?

  2. #2
    Join Date
    Jan 2004
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    The line sets can be reused, weather hard drawn or soft.

    Each manufacturer has their own recomendations. Your contractor should follow the install instructions of the brand/unit you have installed.
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    How many times must one fix something before it is fixed?

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