Search:

Type: Posts; User: Saturatedpsi

Page 1 of 16 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    10
    Views
    351

    And, the liquid line is 65˚. :confused: That...

    And, the liquid line is 65˚. :confused: That sounds like reversed temperature sensors on a digital gauge set. If you swap the numbers around, you get approx 17˚ superheat and 35˚ subcooling.
    If...
  2. Replies
    13
    Views
    466

    Hmmm. :confused: Well, some of the other guys...

    Hmmm. :confused:

    Well, some of the other guys think the piston is undersized for 4 tons. Any possibility the coil is smaller tonnage than the condenser (mismatch) ?

    And no restrictions inside...
  3. Replies
    13
    Views
    466

    The P-T chart I'm looking at shows an SST closer...

    The P-T chart I'm looking at shows an SST closer to 36˚.

    The IDWB would have to be 62˚ for a target SH of 13˚. Just guessing the WB isn't that low, the numbers indicate an airflow problem...in...
  4. Replies
    13
    Views
    466

    Never mind...:oops:

    Never mind...:oops:
  5. Replies
    32
    Views
    1,494

    It's the, "I think it's working a little"...

    It's the, "I think it's working a little" syndrome...I owned cooling equipment before I knew what it did, and was just as bad as the ones we criticize. They don't understand how it works, so they...
  6. Replies
    32
    Views
    1,494

    Excellent point. :yes: Lack of sufficient...

    Excellent point. :yes:

    Lack of sufficient compressor protection is IMO a big factor in compressor failures. Todays compressors (again IMO) can't endure the abuse those of thirty years ago would....
  7. I just looked at average winter low temps for...

    I just looked at average winter low temps for your area...+40˚. You could probably rewire the defrost control to cycle off the compressor instead of the fan, and let it "air" defrost. :grin2:
  8. Just about every mfg but Rheem. I ran across an...

    Just about every mfg but Rheem. I ran across an internet-purchased brand (I'd never heard of) recently that energized in heat, but don't know of any other resi equipment brands with the atypical...
  9. Best way to accomplish that is convert the...

    Best way to accomplish that is convert the defrost control to a "demand" type. Not sure Goodman has something you could just swap out with. The higher SEER units may come with demand controls that...
  10. Replies
    26
    Views
    1,373

    Low suction and low/non-existent superheat is...

    Low suction and low/non-existent superheat is airflow related. Not enough heat available to boil off the refrigerant. If it's intermittent, I'd guess a funky blower motor control. That or something...
  11. Replies
    24
    Views
    951

    Can't tell for sure, from all your posted info,...

    Can't tell for sure, from all your posted info, but a low to normal superheat, with the 50 psi suction pressure, is symptomatic of low airflow, and would suggest the TXV is attempting to do it's...
  12. Replies
    24
    Views
    951

    Why 1940 cfm for a 3 ton condenser? and how?...

    Why 1940 cfm for a 3 ton condenser? and how? :confused:

    I'm thinking erratic airflow rather than TXV problems.
  13. Replies
    7
    Views
    410

    Go here.. http://www.achrnews.com/# ...and do a...

    Go here.. http://www.achrnews.com/# ...and do a search for "low airflow".
  14. Replies
    20
    Views
    716

    The "normal" suction pressure for the ID/OD temps...

    The "normal" suction pressure for the ID/OD temps would probably be around 80 psi. You're at 60 (35˚ saturated)...once the sun goes down and the temps drop, so will the suction pressure. It's...
  15. Replies
    53
    Views
    1,957

    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...
  16. Replies
    14
    Views
    698

    I always forget about that little detail. :oops:

    I always forget about that little detail. :oops:
  17. Replies
    14
    Views
    698

    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...
  18. Replies
    11
    Views
    541

    Thanks for the correction.

    Thanks for the correction.
  19. Replies
    11
    Views
    541

    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...
  20. Thread: Goodman

    by Saturatedpsi
    Replies
    8
    Views
    453

    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.
  21. Replies
    9
    Views
    362

    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
  22. Replies
    14
    Views
    947

    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...
  23. Replies
    29
    Views
    1,164

    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.
  24. 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...
  25. Replies
    22
    Views
    1,007

    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.
Results 1 to 25 of 385
Page 1 of 16 1 2 3 4
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event