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  1. I was looking at that video thinking, "that's a...

    I was looking at that video thinking, "that's a big 4-ton unit..."

    Then I got it. :whistle:

    Glad no one got hurt. I wonder what it looked like when it blew it's charge.
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    I've thought about that too, but I think...

    I've thought about that too, but I think manufacturers don't do it largely because of image. If one manufacturer does it, then it's as if they're admitting their coils are likely to leak over other...
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    I have a customer with three phase at their home....

    I have a customer with three phase at their home. It's not a big house either, I'm not sure why they have it, but they have a three-phase 5-ton condenser for a twinned system.

    But back to the...
  4. Thread: Death Trap

    by CircusEnvy
    Replies
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    1,340

    I can't tell what's more disappointing - the...

    I can't tell what's more disappointing - the installation or the fabricated story by the OP.

    Smh. :gah:
  5. LOL! That's awesome.

    LOL! That's awesome.
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    180

    We can't offer DIY. However, Mitsubishi is...

    We can't offer DIY.

    However, Mitsubishi is kind enough to publish their service manuals on their website. You're more than welcome to take a look and troubleshoot that way, but I recommend you...
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    I'm having a hard time understanding what you're...

    I'm having a hard time understanding what you're asking.

    So you had a new indoor unit installed. The outdoor unit uses R410A and came charged with 12 pounds from the factory. The contractor pumped...
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    1,237

    Yep, then you get, "oh, do you need me to move...

    Yep, then you get, "oh, do you need me to move this?" No, not at all. I'm just going to start my clock, stand here, and charge you for every minute you waste my time.
  9. Thread: Gardeners

    by CircusEnvy
    Replies
    9
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    477

    Illegal venting. Notify the EPA. :playing:

    Illegal venting. Notify the EPA. :playing:
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    673

    Well you're in AZ, so that can't be too often....

    Well you're in AZ, so that can't be too often. :grin2:
  11. Replies
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    673

    Those tents are great if you're in it for the...

    Those tents are great if you're in it for the long haul, but for quick service calls get yourself a beach umbrella and strap it to the side of the unit with bungee cords.

    Only thing I don't do in...
  12. 8-in-1, needle nose pliers, a multimeter, gauges,...

    8-in-1, needle nose pliers, a multimeter, gauges, and a couple thermometers is "standard" for most jobs. I've tried getting away from carrying my Veto Pro Pac in on every job because it's been...
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    639

    I was on call this weekend. I thought I was going...

    I was on call this weekend. I thought I was going to get crushed. All I had though was one blown capacitor, a stopped up drain, and a faulty ECM module. Today was relaxing too with a PM and two...
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    1,434

    Oh he complained. First time visit, he brought...

    Oh he complained.

    First time visit, he brought up that the downstairs would never really cool off. I started by looking at the filter, then went around the corner of that wall where the AHU is. I...
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    543

    You can use a combustible gas detector to...

    You can use a combustible gas detector to determine if there is any propane mixed with it. If you get a negative result from a small sample, it's likely to be all HCFC.
  16. Replies
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    543

    I'm assuming there's no nameplate, so look up the...

    I'm assuming there's no nameplate, so look up the compressor model. If not that, then approximately what year was it manufactured? Is this an air conditioner or heat pump?
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    711

    Ah, I see what you're saying. Good point.

    Ah, I see what you're saying. Good point.
  18. Replies
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    711

    When you place refrigerant in a cylinder, there...

    When you place refrigerant in a cylinder, there will be an equilibrium of liquid and vapor. Nitrogen will be mixed with the vapor, but even as you try to purge the cylinder, liquid will boil off to...
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    That reminds me of that blatant rip off of...

    That reminds me of that blatant rip off of Intel's slogan on mid-2000 Rheems that says "Scroll Inside". :grin2:
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    711

    Not sure if that would work, but considering air...

    Not sure if that would work, but considering air has moisture in it, the absolute best option is to change the filter drier, pull 500 microns or less, and recharge with virgin refrigerant. Unless...
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    586

    If your start capacitor is faulty, what will...

    If your start capacitor is faulty, what will happen is you'll see the compressor draw near LRA for 1-3 seconds, then the potential relay will drop it out. This isn't the same as a locked rotor where...
  22. Replies
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    508

    If it was drawing LRA and a hard start wouldn't...

    If it was drawing LRA and a hard start wouldn't break it free, it was time to bury that compressor.
  23. Replies
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    649

    Typically, systems are designed and sized for...

    Typically, systems are designed and sized for maintaining indoor temperature 20 degrees lower than the outside air temperature. So if it's 95 degrees outside, the best you should expect is 75 degrees...
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    1,108

    You wouldn't believe how many times I see people...

    You wouldn't believe how many times I see people cover the condensate drains with top soil or mulch.
  25. Replies
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    377

    That only works if you have a TXV at the indoor...

    That only works if you have a TXV at the indoor coil. Like jtrammel said, drive the saturation temperature up to 100 degrees and maintain it for 10-15 minutes for accurate subcooling.

    If you have...
  26. Replies
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    633

    When you mean differential, are you talking about...

    When you mean differential, are you talking about the difference between return and supply temperature? If so, that would be your temperature drop.

    Assuming airflow is perfect at both the...
  27. Not to beat down on you, but there's no excuse in...

    Not to beat down on you, but there's no excuse in misleading another tech who's trying to learn, especially when it's someone else's equipment on the line. Be professional no matter what your pay is...
  28. Replies
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    508

    I never knew such a tool existed. Does the...

    I never knew such a tool existed.

    Does the compressor draw any current? If those numbers are accurate, then something is fishy with the windings. Moisture in the system?

    C-R = lower value
    C-S...
  29. Replies
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    1,434

    It's a mailbox is what it is.

    It's a mailbox is what it is.
  30. Replies
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    633

    OAT? Indoor wet bulb? Temperature drop? Yeah,...

    OAT? Indoor wet bulb? Temperature drop?

    Yeah, I know, this is a TXV, but low load/low temperature is going to bring low suction pressure under certain circumstances. This is medium refrigeration...
  31. How the heck do you charge a properly system when...

    How the heck do you charge a properly system when it's off, unless you're weighing the factory charge in? Under what circumstances would any technician do that? Is he aware of superheat and subcool?...
  32. Replies
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    985

    A 2.5-ton compressor only has the capacity of...

    A 2.5-ton compressor only has the capacity of 2.5-tons, so no, it's not close to 3-tons in any shape or form. Outdoor unit needs to be X size and indoor unit needs to be X size, not X and Y,...
  33. Replies
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    1,434

    Return grille size is all that matters

    Think a 20X25 is enough for 3-tons?

    586011

    Think again... :beat:

    586001
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    https://www.youtube.com/watch?v=wAftcXm45ho ...

    https://www.youtube.com/watch?v=wAftcXm45ho

    This video has everything you need to know.
  35. Replies
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    You should get some formal training under your...

    You should get some formal training under your belt first before thinking about entering into the field. You need a solid understanding of electricity, refrigeration, and above all, safety. Work...
  36. Replies
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    176

    If you think about it, the primary winding in the...

    If you think about it, the primary winding in the transformer is still a conductor, so voltage from L1 will travel through the winding to the other side until it breaks somewhere. Only until that...
  37. Did this problem recently surface? How old is the...

    Did this problem recently surface? How old is the indoor coil?

    If your emergency pan is filling up, you might have a crack in the primary pan or the primary and secondary outlets are plugged at...
  38. Replies
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    258

    Given their price, they're a good value. Ugly to...

    Given their price, they're a good value. Ugly to look at, but they're all right.

    Goodman's AHUs suck. I'm convinced the coils are refurbished colanders, or is that Comfortmaker?
  39. Replies
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    Ohm out those windings below the bobber. ...

    Ohm out those windings below the bobber.

    What's your subcool at?
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    253

    Yes, the more complex, the more it will cost to...

    Yes, the more complex, the more it will cost to repair in the long run. I would go with a 14-18 SEER 2-stage compressor and spend the difference on a 10-year parts and labor warranty.
  41. Replies
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    Ever think of being a flare tool salesman, PHM?...

    Ever think of being a flare tool salesman, PHM? You sold me. I'd like that model number.
  42. Replies
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    272

    It could, but it's very unlikely. Quit throwing...

    It could, but it's very unlikely. Quit throwing parts at it and get some help. You can always just pay for a diagnostic and if the repair is something simple that you can tackle, then you can do it...
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    2,620

    Yeah, I'm not too certain there's much evidence...

    Yeah, I'm not too certain there's much evidence to back up the need for an R410A flaring tool.
  44. Replies
    7
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    272

    We can't offer DIY advice. Please call a...

    We can't offer DIY advice.

    Please call a technician to take a look and maybe even show you a few things. Playing with a gas furnace that you don't understand can be dangerous.
  45. Replies
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    915

    I think you find alcoholics in any industry....

    I think you find alcoholics in any industry. Whether or not alcoholism is causes by the stress of the job is another question. As for me, I don't drink, but some days help me understand why some...
  46. Replies
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    Which begs a question: does it matter if you put...

    Which begs a question: does it matter if you put a 2-pole contactor on a unit that uses a single-pole?
  47. Replies
    18
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    517

    It sounds like the compressor is grounded, so...

    It sounds like the compressor is grounded, so yes, it would need to be replaced.

    R22 systems were still being installed up until 2012 when EPA regulations prohibited the installation of R22...
  48. It sounds like your system is very much oversized...

    It sounds like your system is very much oversized if it's short-cycling that quickly and humidity is that high. A two-stage compressor wouldn't do much good in that case.
  49. Replies
    18
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    517

    Call another technician. Not sure how someone...

    Call another technician.

    Not sure how someone can say "the condenser is bad". That's like an auto mechanic saying, "your car is bad". Okay... what part of the car is bad?

    Now if he found the...
  50. I would say putting a second system in is a last...

    I would say putting a second system in is a last ditch effort because like I said, that's very expensive and complex, but it is the most ideal way to manage your comfort.

    Call a reputable company...
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