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Thread: Refrigerant copper vs plumbing copper?

  1. #41
    Join Date
    Jul 2008
    Location
    So Cal
    Posts
    8
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    Definitely not, annealing is softening, removing the hard temper, and performed as described by hvacker.

  2. #42
    Join Date
    Jun 2020
    Location
    TX
    Posts
    10
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    Nominal or plumbers copper is measured by the I.D., while ACR is measured by O.D. Both are available in K and L. ACR is purged with nitro and capped to prevent oxidation.

  3. #43
    Join Date
    Jun 2019
    Posts
    894
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    Quote Originally Posted by hvacker View Post
    The important thing about ACR is it's clean and pressurized. If I was to use plumber pipe I'd run a piece of cotton waste with Virginia 10 and a fish tape. That stuff can be dirty.
    it is not dirty because it comes dirty from the factory. It is dirty because copper pipes for plumbing are usually stored in some dirty ware houses, with lot of dust, eventually side by side with cement bags and so on...

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