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  1. Replies
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    Was simply trying to be helpful buddy. No...

    Was simply trying to be helpful buddy. No disrespect intended. I'm not even sure what is actually in those links I sent. Just saw the titles and thought they might help.
  2. Thread: NU-22

    by EZE2489
    Replies
    15
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    1,454

    To be honest, that is the one replacement...

    To be honest, that is the one replacement refrigerant that I haven't played around with much. You can check the SDS on the refrigerant and compare it too the ratings for R22. Best advise I can give...
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    This should be pretty helpful for you. ...

    This should be pretty helpful for you.

    http://hvac-talk.com/vbb/archive/index.php/t-931412.html

    http://hvac-talk.com/vbb/archive/index.php/t-924382.html
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    512

    An SPP6 Super Boost capacitor actually does not...

    An SPP6 Super Boost capacitor actually does not have a potential relay to remove the capacitor from the compressor circuit. It is simply a the thermal disc on top of the capacitor that opens once it...
  5. Thread: NU-22

    by EZE2489
    Replies
    15
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    1,454

    NU22 isn't a bad idea necessarily but understand...

    NU22 isn't a bad idea necessarily but understand as someone posted above, all of the drop in refrigerants have a pretty significant difference in the refrigerants BTU rating which obviously decreases...
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    EPR v/s CPR v/s MOV expansion valve.

    Yes I do. A CPR valve is in place to do nothing more than ensure the compressor doesn't overload on a hot start after defrost. An EPR valve is there to maintain a certain evaporator pressure so the...
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    1,220

    That's not actually true. And MOV or hard shut...

    That's not actually true. And MOV or hard shut off TXV almost performs the same duties as an EPR valve because like the EPR, the MOV TXV will never allow the evaperator to drop below its set...
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    Go to an Aireco or Southern Refrigeration if you...

    Go to an Aireco or Southern Refrigeration if you have one locally and they can build you a valve on site with the exact same specs if you give them that Carrier part number. Good luck
  9. Replies
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    954

    Nominal tonnage and required airflow is going to...

    Nominal tonnage and required airflow is going to be the determining factor here. Aaon's are great products but the again so are Payne or Goodman units if they are installed properly.
  10. Thread: Trane YCD120

    by EZE2489
    Replies
    8
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    1,830

    Just unplug the J4 wiring harness from the...

    Just unplug the J4 wiring harness from the Intellipak Control Board disabling theneconomizer and its switches. All good to go. If I were you I wouldn't waste the time getting a new one and replacing...
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    Wow!!! Lets make it simple. The headmaster will...

    Wow!!! Lets make it simple. The headmaster will not allow the liquid line pressure to drop below whatever pressure the valve is set for so the TXV is constantly getting a solid column of liquid, even...
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    Crankcase heater is always a good idea no matter...

    Crankcase heater is always a good idea no matter what the application. It simply prevents and insures that absolutely no liquid refrigerant is going to migrate back to the crankcase and cause a...
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    Where are we regulating the pressure in the...

    Where are we regulating the pressure in the system? If its the evaporator than you want an EPR Valve (evaporator pressure regulator). If its at the compressor than you want a CPR Valve (crankcase...
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    Don't use the Lock-Tite. Horrible idea. Use the...

    Don't use the Lock-Tite. Horrible idea. Use the Liqui-Vac by Airesco. Works like a charm and you won't have to kill yourself if you ever have to take that nut back off!
  15. Replies
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    1,624

    TCO2 sensor has failed or if unit utilizes...

    TCO2 sensor has failed or if unit utilizes outdoor air for return air then a frozen or bad freeze-stat will keep the blower running constantly.
  16. Replies
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    3,129

    It's one of two problem. Either the TCO2 control...

    It's one of two problem. Either the TCO2 control is keeping the fan on or if the unit is using outdoor air for return air and the freeze stat is either closed of bad it will also make the blower run...
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    Overcharged systems will cause the VFDrive to cut...

    Overcharged systems will cause the VFDrive to cut the compressor off if it notices extreme modulation in the motor amperage without any change in the delivered frequency. Just a though
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    4,275

    You do know you have to take those little caps...

    You do know you have to take those little caps out that are under the suction and discharge valve cover from the factory. Sounds like u left the on in the discharge side buddy
  19. Replies
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    4,423

    TCO2 thinks the heat exchanger is too hot so it's...

    TCO2 thinks the heat exchanger is too hot so it's keeping the fan on to try and cool it down so the switch will close.
  20. Replies
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    No, no, no. You clearly have a bad set of valve...

    No, no, no. You clearly have a bad set of valve plates. No need to replace the whole compressor. Just a new suction and discharge valve plate as long as you can repair the leak at the unloaded.
  21. Replies
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    You need to make sure that the defrost...

    You need to make sure that the defrost termination thermostat is opening and closing at the correct temperatures. After that the only other issue would be the defrost clock and or a wiring issue....
  22. Thread: Frustrated

    by EZE2489
    Replies
    20
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    1,957

    You don't by chance work for Goode Refrigeration?...

    You don't by chance work for Goode Refrigeration? And if you do then I'm pretty sure you know who I'm working for
  23. Replies
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    Are you sure on the tonnage? Seems kinda small to...

    Are you sure on the tonnage? Seems kinda small to be 20 plus tons. The measurements you list are about the same size as a 5 or 7.5 ton Trane unit which is only about 1700 lbs. so unless that thing is...
  24. Couldn't have sai it better timebuilder. My...

    Couldn't have sai it better timebuilder. My companys main line of work is 711. We do everything in the store. Hot foods and refrigeration so I know exactly what you mean
  25. Replies
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    The Grasslin DTMV40 or now DTAV40 can be tricky...

    The Grasslin DTMV40 or now DTAV40 can be tricky if you aren't familiar with them. I hated them at first until I learned how useful they can be. If I'm not mistaken the TF27 has separate defrost...
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