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  1. #1
    Join Date
    May 2005
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    scroll replacement.

    Im replacing a compressor, that has a "valve" the original doesn't.

    Its the brass valve on top of the original compressor.

    I know it dumps liquid freon into the compressor to cool it, but why didn't the original come with one?

    thanks
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    Let's give nukes a chance.

  2. #2
    Join Date
    Sep 2013
    Location
    Benton, AR
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    scroll replacement.

    That's the new style valve. The old one was a fixed orfice



    Sent from my iPhone using Tapatalk

  3. #3
    Join Date
    Jan 2010
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    Are you removing the compressor in that picture ?

  4. #4
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    Aug 2002
    Location
    Southold, NY
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    Any chance that's part of Copeland's Digital Scroll for capacity control?

  5. #5
    Join Date
    Jun 2014
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    Virginia
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    That Y11 valve looks like it goes to that compressor.

    Where that black fixed orifice canister is sweated in is the rotolock outlet for that valve, and the bulb goes in the top of the compressor.
    All this is assuming that you have the same compressor, and not the sweat in liquid injection type.

  6. Likes hvacrdrew liked this post
  7. #6
    Join Date
    Jul 2000
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    Guayaquil EC
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    The original you have probably a ZF**K3 version. It was the original liquid injection cooling method which was on any time the compressor was running. See the paragraph on Liquid Injection on p. 2:

    TAE1296.PDF

    The replacement is likely the ZF**K4 which uses that DTC (Discharge Temperature Control) valve. See the section under Discharge Temperature Control Valve on p.3:

    TAE1299.PDF

    Always try to post the compressor models you're asking questions about. It saves us all a lot of guessing.

  8. Likes Mr. Chain Blue Lightning liked this post
  9. #7
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    thanks guys..
    Let's give nukes a chance.

  10. #8
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    Aug 2013
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    Omaha
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    Also...you dont need that solenoid valve anymore if you're using that new DTC valve

    Sent from my SM-N920V using Tapatalk

  11. #9
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    May 2005
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    Icemeister, how do I adjust this valve??
    Let's give nukes a chance.

  12. #10
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    Jul 2000
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    Quote Originally Posted by primmers View Post
    Icemeister, how do I adjust this valve??
    You don't. It's non-adjustable.

  13. #11
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    It has a cap on it like a TXV.
    Let's give nukes a chance.

  14. #12
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    Jul 2000
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    Quote Originally Posted by primmers View Post
    It has a cap on it like a TXV.
    It comes pre-set to control discharge temperature, so if you're exceeding about 225 Deg F then it's not a matter of adjustment, rather it's a system problem like high suction SH, high pressure ratio, poor liquid feed to valve, etc.

  15. #13
    Join Date
    May 2005
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    Ok thanks ..again..
    Let's give nukes a chance.

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