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Type: Posts; User: Saturatedpsi

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  1. Replies
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    833

    If the motor is running, there must be some...

    If the motor is running, there must be some voltage, on one of the motor leads, coming from some where, whether or not there's a "call" for fan.

    Use a clamp-amp meter to determine which lead(s) is...
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    519

    I always forget about that little detail. :oops:

    I always forget about that little detail. :oops:
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    519

    The tube you're referring to is the equalizer...

    The tube you're referring to is the equalizer line for the TXV, providing the necessary evaporator pressure to the valve, for it to work as designed. Since the system does well in cool cycle, there...
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    490

    Thanks for the correction.

    Thanks for the correction.
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    490

    Once the MIC motors came into play, I found...

    Once the MIC motors came into play, I found sleeve bearings to be the weak link, and began buying ball bearing motors.

    Half, and some, third horse universals are oftentimes too long for replacing...
  6. Thread: Goodman

    by Saturatedpsi
    Replies
    8
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    380

    Those older Goodman "sequencer" type blower...

    Those older Goodman "sequencer" type blower controls are notorious for intermittent failures to "close" on a stat call. Quite likely the cause of the occasional freeze ups.
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    311

    Bard also makes them...if you should need an...

    Bard also makes them...if you should need an option.

    http://www.bardhvac.com/digcat/S3364_TechDoc_CD/TechDoc-PDF/2100-468.pdf
  8. Replies
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    783

    Compressor manufacturers tend to specify...

    Compressor manufacturers tend to specify "compressor" superheat values, while equipment manufacturers usually specify "service valve" superheat values. And there's usually not a big difference...
  9. Replies
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    1,005

    A problem with the TXV or RV won't generate those...

    A problem with the TXV or RV won't generate those pressures, with a "normal" refrigerant charge. Recover refrigerant until the system will run without tripping HP limit, then try to do some analysis.
  10. The condensing temp is about equal to ambient....

    The condensing temp is about equal to ambient. Normal charge with a TXV issue would have higher head pressure than what you measured.

    10 year old unit, probably has a leaking coil. Add more freon...
  11. Replies
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    895

    It's quite possible, the new filter/dryer was...

    It's quite possible, the new filter/dryer was included to remind you to remove and replace the OEM/existing dryer.
  12. Replies
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    2,082

    Mufflers are always (all I ever saw) in the hot...

    Mufflers are always (all I ever saw) in the hot gas line at the compressor.

    The pressures, cool liquid/suction lines and "frosting" points suggest a liquid restriction and too much charge. Of...
  13. Thread: heat pump

    by Saturatedpsi
    Replies
    16
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    714

    The thing is, I wasn't trying to be a...

    The thing is, I wasn't trying to be a smarta$$...if the pressure goes high and the compressor starts by-passing, what's to diagnose? I just assumed he wasn't watching (or measuring) the pressure on...
  14. Thread: heat pump

    by Saturatedpsi
    Replies
    16
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    714

    If you measure the head pressure, the answer to...

    If you measure the head pressure, the answer to your question will likely be obvious.
  15. Replies
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    315

    OD + 50˚ SCT isn't normal for anything...

    OD + 50˚ SCT isn't normal for anything residential to my knowledge. OD + 20˚ is about normal for 13 SEER stuff.
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    439

    Just out of curiosity, what were the codes?

    Just out of curiosity, what were the codes?
  17. Replies
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    1,208

    Where does "beginner" status begin and DIY status...

    Where does "beginner" status begin and DIY status end?
  18. Replies
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    308

    68=40˚... Condensor Low Side temp=46˚......

    68=40˚... Condensor Low Side temp=46˚... Superheat=6˚

    230=110˚... High Side temp = 105˚... Subcooling=5˚



    I'd take those numbers any day on MH equipment. :grin2:
  19. Replies
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    488

    Yes, but it will also reduce the superheat, which...

    Yes, but it will also reduce the superheat, which you don't need.

    Been already said it: the airflow is low for some reason.
  20. From "Wikipedia": "For a given parcel of air...

    From "Wikipedia":

    "For a given parcel of air at a known pressure and dry bulb temperature, the thermodynamic wet-bulb temperature corresponds to unique values of relative humidity, dew point...
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    1,522

    What kind of formula do they use to get that kind...

    What kind of formula do they use to get that kind of mark-up? :confused:
  22. Or, rusty suction line filters. :grin2:

    Or, rusty suction line filters. :grin2:
  23. Replies
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    712

    Time/temp controls are far easier to...

    Time/temp controls are far easier to diagnose...it's either the board or the DFT, you know?:cool: But demand controls, not so much.

    I had a Trane demand control some years ago that would pass all...
  24. Replies
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    712

    It's simply Trane's version of "demand defrost",...

    It's simply Trane's version of "demand defrost", as opposed to time-temp varieties. Same basic procedure: eliminate refrigerant issues, check the board for voltage to "R" and try to...
  25. Replies
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    2,914

    ..and if I started selling a York product, it...

    ..and if I started selling a York product, it would start failing.:gah:
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