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Thread: x terminal

  1. #1
    Join Date
    Jul 2010
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    South Florida
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    54

    x terminal

    I have worker on several freezer units recently and on all of them the previous guy disconnected the x terminal why would
    a tech do this?

  2. #2
    Join Date
    Mar 2009
    Location
    Mid-Mo
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    3,594
    Does it have a defrost termination switch on the evaporator?

  3. #3
    Join Date
    Oct 2012
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    3,330
    Disconnecting X eleminates the termination. Then your defrost runs the whole length of time on the clock rather that ending on temperature from the defrost termination thermostat or pressure switch.

    Defrost termination thermosat could be bad, or needs to be adjusted, and since defrost was terminating before coil was completely defrosted, he unhooked wire to let it run the full time. Rather than fix/adjust dft. Or it could not have a dft in it.

    Could be he had problems with ice on ceiling of box and he though that letting it run the full time on the clock would help, which it probably wouldn't.

    Could be that he was there one day and the coil had froze. So he put it in defrost, and unhooked X to let it run the full time, and left. Thinking he would come back in a couple days to hook it back up and didn't.

    Could be that he thinks that termination is stupid. So he sets the time on the clock for exactly 22 minutes and unhooks X.

    Could be a lot of reasons. I would figure out what the problem is, and hook X back up.

  4. #4
    Join Date
    Jul 2010
    Location
    South Florida
    Posts
    54
    OK thanks, defrost terminator was missing in the traulsen box ...all timers are set for a 40min defrost cycle is what i have noticed here in S.Florida. I Know our a/c guys suck and I'm sure its not much different in refer either. Its been a crash course for me been out of the field for 5 years ...anyway Im back , looks like I got parts to sell. The terminator is a censor that clips in or plate mount so no adjustment to be made its either good or not.

    Thanks guys

  5. #5
    Join Date
    Feb 2006
    Location
    USA
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    4,381
    Why do guys walk away from the small things like replacing a defrost termination switch? I refer to that as an easy money repair for the company, and me staying busy.

    Sent from my SGH-T999 using Tapatalk 2

  6. #6
    Join Date
    Sep 2010
    Location
    miami,fl.
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    606
    Quote Originally Posted by rcac101 View Post
    OK thanks, defrost terminator was missing in the traulsen box ...all timers are set for a 40min defrost cycle is what i have noticed here in S.Florida. I Know our a/c guys suck and I'm sure its not much different in refer either. Its been a crash course for me been out of the field for 5 years ...anyway Im back , looks like I got parts to sell. The terminator is a censor that clips in or plate mount so no adjustment to be made its either good or not.

    Thanks guys
    im also located in south florida to be exact im in cutler bay area. What part are you currently in? just curious to see if we are neighbors lol

  7. #7
    Join Date
    Jan 2010
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    6,091
    I have run into this more times then once. Sometimes I feel as though I'm right behind the guy hooking them back up.
    Not having early termination is a BIG waste of energy.

  8. #8
    Join Date
    Jul 2010
    Location
    South Florida
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    Quote Originally Posted by anthonyac1 View Post
    im also located in south florida to be exact im in cutler bay area. What part are you currently in? just curious to see if we are neighbors lol
    Hey fellow Floridian, im in broward still in shorts too! Its been warm out there

  9. #9
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    May 2003
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    Utah
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    718
    Why would a tech disconnect something?

    Lack of understanding is a good possibility.

  10. #10
    Join Date
    Apr 2011
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    Palmdale ca with my brothers
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    44
    Sometimes you remove it if your having icing issues. IV had it intermittently kick out and your back a few days later with the same issue.

  11. #11
    Join Date
    Oct 2011
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    Chicagoland Area
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    Quote Originally Posted by bunny View Post
    Why would a tech disconnect something?

    Lack of understanding is a good possibility.
    Problem is, someone told him do do it. He listened and never returned.
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  12. #12
    Join Date
    Nov 2006
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    Southeastern Pa
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    17,911
    Quote Originally Posted by bunny View Post
    Why would a tech disconnect something?

    Lack of understanding is a good possibility.
    More likely, a low end client that would not approve the permanent repair.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

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