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Evaporator Connection Not What Expected

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BigRob
BigRob Member Posts: 322
in THE MAIN WALL
Hi all, I picked up an evaporator for a wine room application and the TXV connection is not what I expected and I’m confused. Is this a SAE connector and why is it sealed? There are also cotter-like pins around the perimeter. Do I cut this off?


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  • Big Ed_4
    Big Ed_4 Member Posts: 2,785
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    Seems like you have half the system

    There was an error rendering this rich post.

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,545
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    I never saw one of those. Maybe some type of Chatliff connector
  • BigRob
    BigRob Member Posts: 322
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    It's weird - almost like the TXV pierces that metal covering the pipe back to the exchanger. I guess I'll just cut it off and sand off the coating.
    mattmia2
  • mattmia2
    mattmia2 Member Posts: 9,670
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    Looks like some sort of quick connect precharged system.
  • mattmia2
    mattmia2 Member Posts: 9,670
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    Before you cut it off, make sure the tubing is a metal and size you can connect to.
  • pecmsg
    pecmsg Member Posts: 4,861
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    Standard Flair connection. The holes are to alloy moisture to drain rather then break the flair nut. 

    I prefer remove them and use Stay Brite #8 to solder in the x-valve. 
  • ratio
    ratio Member Posts: 3,628
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    Ah, maybe it's a metal dust cap inside a flare nut?
  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
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    Sure looks like a metal: what we call a frost plug inside a typical flare nut. Can you pry it out? 

    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!
    mattmia2
  • BigRob
    BigRob Member Posts: 322
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    Thanks for all your suggestions. I’ll give it a gentle pry and report back. 

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