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  1. Replies
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    Piston system.... hunting?

    I’m fairly familiar with seeing a TXV hunt on startup or when failing.... but today I watched a piston metered system appear to “hunt”.

    4 ton straight cool split with maybe 10 ft lineset.

    3...
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    I reducted a remodel in Edgewater FL and the...

    I reducted a remodel in Edgewater FL and the inspector would not budge on making me install R8 flex. Every where else in Florida we use R6 and the inspectors are fine with it. The supply house had to...
  3. Replies
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    My suction SH is around 20. The discharge...

    My suction SH is around 20. The discharge temperature right off the compressor is about 200 degrees.

    Yes during on cycles the suction line frosts all the way back to the compressor.

    My boss...
  4. Replies
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    Ok, 5 years ago I got my class B Florida license....

    Ok, 5 years ago I got my class B Florida license. Here are my thoughts in retrospect:

    1: Do not approach it in a nonshwlaunt manner. I literally took 4 months off from work to study. My schedule...
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    We are concerned about the compressor heat, as...

    We are concerned about the compressor heat, as this is the reason the DTC keeps metering after the compressor shuts down. Is it better to have the compressor run hotter than desired than to short...
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    This is a good idea, I will run this by my boss.

    This is a good idea, I will run this by my boss.
  7. Replies
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    Sorry itís gone.

    Sorry itís gone.
  8. Replies
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    the DTC is causing the short cycling, but ...

    the DTC is causing the short cycling, but because itís doing itís job. The ultimate reason was the compressor running hot. I mistook the valve doing its job as an internal bleed by. Lesson learned.
  9. This sounds like a very simple problem explained...

    This sounds like a very simple problem explained in a very complex manner.

    That is why everyone commenting has responded the way they have... including me.

    Please save your time and seek out a...
  10. Replies
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    Snapperhead.... yes other units with the same...

    Snapperhead.... yes other units with the same exact setups are doing fine. I heard one cycle today, but only once after shut down.
  11. Replies
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    This is interesting about the internal check...

    This is interesting about the internal check valve possibly going bad.

    I have noticed that when they try to shut down the feed from the discharge temp valve is so strong that it actually spins the...
  12. Sounds like running the system with both gauge...

    Sounds like running the system with both gauge knobs wide open. It’s happened to the best of us!

    Are you sure the compressor is on?

    But you never know when something weird can show up!
    ...
  13. Replies
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    Temperature discharge valve blues

    Ok, I screwed up and had to learn the hard way once again... but have some questions.

    Where I work we have 78 walk in freezers and coolers.

    A couple of them have been short cycling like crazy....
  14. Replies
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    Once upon a time, in a Florida town called Port...

    Once upon a time, in a Florida town called Port Orange....

    Someone was contracted to reduct a “gutted” home.

    The contractor re-ducted the gutted home (after much due diligence with sizing and...
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    Why are you leaving? What makes the new company...

    Why are you leaving?
    What makes the new company more attractive?
  16. Replies
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    Apps are a good reference for confirmation...

    Apps are a good reference for confirmation sometimes, but as stated above use your brain to diagnose, then use an app if necessary to double check what your thinking.

    Apps alone suck in general...
  17. Thread: Contactors

    by 3.14
    Replies
    22
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    1,429

    Iím not familiar with seeing them burnt but maybe...

    Iím not familiar with seeing them burnt but maybe itís because they are somewhat rare.

    I wonder if the phase shift of the capacitor could throw neutral potential off?
  18. Replies
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    My mind! Just kidding, I did lose an a few...

    My mind!

    Just kidding, I did lose an a few screwdrivers or so... but nothing too expensive.

    I left an sman on the side of a house once but upon returning it was still there.... thank god.
  19. Thread: Contactors

    by 3.14
    Replies
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    1,429

    The problem you’re describing has to do mostly...

    The problem you’re describing has to do mostly with the corrosive effect of arcing when the points are closing or opening.

    The ark is caused by the potential between one side and the other.

    I...
  20. Replies
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    Is the compressor scroll or recip?

    Is the compressor scroll or recip?
  21. Replies
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    Did it have a rebel flag sticker next to the data...

    Did it have a rebel flag sticker next to the data plate?
  22. Replies
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    All the information you need is readily available...

    All the information you need is readily available online.
  23. Sorry I missed that. Iím used to hearing about...

    Sorry I missed that.

    Iím used to hearing about reversing valve internal failures.

    I have not experienced any refrigerant leaks on reversing valves associated with Rheem.

    Good luck! If itís...
  24. I spent about 3 years on my own (1 man show) with...

    I spent about 3 years on my own (1 man show) with license in central Florida, installing specifically Rheem rp13 and rp14 systems.

    I have since moved on to something much more satisfying, but to...
  25. Replies
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    Maybe they accidentally purged with oxygen...

    Maybe they accidentally purged with oxygen instead of nitrogen??!
  26. Replies
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    The warmer the air.... the more capacity it has...

    The warmer the air.... the more capacity it has to hold moisture.
  27. Replies
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    I’m not singling out this post but everyone seems...

    I’m not singling out this post but everyone seems to be posting the same kind of thing.

    Yes... the warmer the air, the more molecular space it contains, thus the more potential it has to allow for...
  28. Replies
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    Why is this being made so complicated? ...

    Why is this being made so complicated?

    Dehumidification happens on the evaporator coil.

    Longer run time for the evaporator coil results in more dehumidification.

    Heating discharge air...
  29. Replies
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    OP, you are correct in the theory aspect. Many...

    OP, you are correct in the theory aspect.
    Many people will try to explain reheat as “burning” moisture off.
    This is incorrect, the only physical dehumidification that happens is off the evaporator....
  30. Replies
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    Well, I haven’t sat with one to watch on a normal...

    Well, I haven’t sat with one to watch on a normal defrost cycle. But I have also not come across one with refrigerant flowing and no fans.

    I believe they are all running full clock duration and...
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    Will do next time. My worry has been coming...

    Will do next time.

    My worry has been coming back to find an ice block with no fans, but I guess even if it has significant icing, the heat from the box starting up would still take care of it.
  32. Replies
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    Yes, they are all mounted in the electrical...

    Yes, they are all mounted in the electrical compartments clipped to suction side tubing. They are all in the same spot and appear to be factory installed.

    Definitely understand that they are temp...
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    3 wire DTFD sensors

    I am fairly new to refrigeration, but at work we now have 70+ walk in freezers and coolers.

    They are all basic pump down style systems and all have 3 wire defrost termination/ fan delay in the...
  34. Thread: Oil mixing

    by 3.14
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    I use my sman on anything without a second...

    I use my sman on anything without a second thought. Havenít lost a system yet! XD
  35. Replies
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    Yeah, sucky days come with the trade for sure. I...

    Yeah, sucky days come with the trade for sure. I am really hard on myself when I misdiagnose, but I guess there’s nothing like learning the hard way.

    On the system mentioned in the OP with the...
  36. Replies
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    Trane RTU freezing headers

    We have a lot of Trane RTUís scattered about on our properties.
    The style that has a 2 stage slant coil, with headers running the length of the coil and each header piece has a factory sealed...
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    Awesome, ty guys

    Awesome, ty guys
  38. Replies
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    Ok, thanks for the help. I guess I don’t have the...

    Ok, thanks for the help. I guess I don’t have the status here (based on other threads I just found) to have a signature.

    I tried to apply for pro a while back but it wanted license info, etc.......
  39. Replies
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    Posible stupid question

    Iím somehow completely missing where I need to go in my settings or profile to be able to add the little quotes that appear under many members posts....
  40. I just had this issue and found a solution before...

    I just had this issue and found a solution before stumbling across this thread.

    Nothing I found online stopped it on chrome.

    My fix was download ďadblockerĒ from apple and using safari to...
  41. Replies
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    I got mixed up in a restaurant job years ago that...

    I got mixed up in a restaurant job years ago that I was not ready for. Used residential manual J for the dining area. Thank goodness it was just the dining area and it maintained temp in the dining...
  42. Replies
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    I remember having to fire my largest customer for...

    I remember having to fire my largest customer for simply being so cheap and STILL having billing issues.... I was so worried.

    Best decision ever.
  43. Replies
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    Yes

    Yes
  44. Replies
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    Did you forget to open the liquid line service...

    Did you forget to open the liquid line service valve?
  45. Replies
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    Interesting, somehow I missed that it had a poor...

    Interesting, somehow I missed that it had a poor drain trap.... have you checked humidity? If youíre cooling but not consistently removing humidity that could possibly be the only issue,

    Recently...
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    I bet it has been that way since day one.

    I bet it has been that way since day one.
  47. Replies
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    Definitely need superheat info. Doesnít really...

    Definitely need superheat info.
    Doesnít really look that bad to me.
    Are you saying you made a sealed system repair, weighed in charge and now the customer says itís not cooling like before? What...
  48. You should install some solar panels, then...

    You should install some solar panels, then install a large battery bank to drive a DC variable speed ice machine, then convert the dc to ac and run an ac power drill with one of those harbor freight...
  49. $99 window units and be done, I’m assuming these...

    $99 window units and be done, I’m assuming these are temporary offices or something?

    What’s the application?? :eek2:
  50. Replies
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    check your hoses for leaks under pressure

    check your hoses for leaks under pressure
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