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Thread: TXV hot swap

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  1. #1
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    TXV hot swap

    The company I work for pushes us to do hot swaps on 410 TXV's. I'm not a big fan of doing it this way. I'd like to get others' thoughts/pros/cons on doing this.

  2. #2
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  3. #3
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    Quote Originally Posted by jpsmith1cm View Post
    What do you mean by 'hot swap'
    X2
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  4. #4
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    Twilly says they steal it from one house and install it in another and get paid for it.
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  5. #5
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    Hot Swap is when we pump down the system into the condensor and leave some pressure in it so we are venting some of the 410A
    They tell us that it is faster this way and we dont have to test with nitrogen or pull it down in a vacuum.

  6. #6
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    Quote Originally Posted by Lawrence a View Post
    Hot Swap is when we pump down the system into the condensor and leave some pressure in it so we are venting some of the 410A
    They tell us that it is faster this way and we dont have to test with nitrogen or pull it down in a vacuum.
    I've done things this way and can say from experience that it is t a good method.

    Do I right.

  7. #7
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    East Coast FL
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    If the txv is equiped with mechanical conections , such as chatleff with seals , then there is nothing wrong at all with changing the valve with say , 5 psi on the lines and evap.

    Residential speaking.

    This saves time , avoids contamination , and is perfectly do-able.

    New drier or evacuation not needed.

    Even with zero pounds , Carrier says vapor will still exit for some time , preventing air and moisture from entering. (you can see the fumes)

    Also , you can easily thumb a hole with five pounds.

  8. #8
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    Oct 2008
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    Cleveland, Ohio
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    ???????

    Last time I checked 99% of us get paid by the hr. I recommend residential, commercial no matter what application pump it down, change the txv, change the drier and vac the system. This leaves little room for error. That's my personal opinion.

  9. #9
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    Apr 2011
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    New Jersey
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    Quote Originally Posted by AiResearch View Post

    Also , you can easily thumb a hole with five pounds.

    Thats what she said!

  10. #10
    I have done this once with good results. In the perfect world you would have a filter-dryer already in the lineset to clear your mind.

    However, I must say, I have only seen 1 410a TXV actually fail.

  11. #11
    Join Date
    Jun 2009
    Posts
    92
    it you have the change the txv because it is malfunctioning possibly from debris changing the lld would be a good thing.

    damm i must be slow not sure if it could change it out with presssure remaining on both sides

    i guess if you leave enough liquid in the system and are not using a torch - i hate that- and have your buddy hold his thumbs over the exposed ends while you are in between his legs it might work.

    i probably have bad luck with these things so i'll recover and my buddy has short arms

  12. #12
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    Quote Originally Posted by jpsmith1cm View Post
    I've done things this way and can say from experience that it is t a good method.

    Do I right.
    Do you mean mean not?
    Stuart
    Lack of airflow destroys compressors.

  13. #13
    Join Date
    Dec 2007
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    oklahoma city U.S.A.
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    Quote Originally Posted by Lawrence a View Post
    Hot Swap is when we pump down the system into the condensor and leave some pressure in it so we are venting some of the 410A
    They tell us that it is faster this way and we dont have to test with nitrogen or pull it down in a vacuum.
    That can be a problem..... Do you have your E.P.A. certification? Not trying to be an a**, but venting is against the law. Keep in mind that the E.P.A. will fine your personally. Some people still want to vent that shi* into the atmosphere rather then do it properly. I ain't the E.P.A. police, just sayin...

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