View Poll Results: when will we get to 4,000 posts?

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  • june 12

    33 24.63%
  • june 20

    31 23.13%
  • july 1

    26 19.40%
  • july 12

    44 32.84%
  1. #24701
    Join Date
    Jun 2004
    Location
    Location:Raleigh NC
    Posts
    9,603
    Quote Originally Posted by jpsmith1cm View Post
    Head looks about normal for that kind of ambient.

    A piston MD might run a higher SC than a TEV unit.

    Given that and ASSUMING that the airflow was correct, I'd shoot a bit of gas in it and see what happened.

    I was thinking airflow

    But like I said I been out laid up for a good while. Going to go out at 5:30 am with his young son (mid 20s )

    see how I do.
    If you help others then you are a Success

  2. #24702
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,397
    Quote Originally Posted by fcs

    I was thinking airflow

    But like I said I been out laid up for a good while. Going to go out at 5:30 am with his young son (mid 20s )

    see how I do.
    Low airflow would tend to give you a lower Superheat.

    High airflow would show up with high suction and high Superheat.

  3. #24703
    Join Date
    Jun 2004
    Location
    Location:Raleigh NC
    Posts
    9,603
    Quote Originally Posted by jpsmith1cm View Post
    Low airflow would tend to give you a lower Superheat.

    High airflow would show up with high suction and high Superheat.
    Can tell I've been NOT doing Any thing to keep my skills for the last 2 years.
    If you help others then you are a Success

  4. #24704
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,397
    Quote Originally Posted by fcs View Post
    Can tell I've been NOT doing Any thing to keep my skills for the last 2 years.
    Another thought that occurs to me would be a restricted piston or bad TXV.


    Nothing wrong with being rusty. 2 years is a long time.

  5. #24705
    Join Date
    Mar 2008
    Location
    Fuquay Varina, N.C.
    Posts
    419
    The numbers you gave are missing one very important piece of information, what was indoor wet bulb temp? with that you could determine what the target S/H should be.
    I agree that it probably is a little low on charge, if nothing has been done to it in the nine years I would first check that Coil is clean, blower wheel is clean and then recharge unit, probably a piston metering system so S/H is the important number.
    Good luck and glad to see you are getting to work on a unit, be careful and do not hurt yourself.
    RSES Member.
    Mainstream Engineering Certified.
    HVAC/R PM Technician.
    410A, & GREEN HVAC/R Technician.
    NATE Core.
    Working not as to please men but to the Glory of Christ my KING.

  6. #24706
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    17,863
    With 10 SC, you have liquid available at the metering device, so your SH should be lower. I'd expect a restriction before the evap, like a clogged dryer, orifice, or a closed txv.


    Good morning, Bret and everyone.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  7. #24707
    Join Date
    Jan 2007
    Location
    Vancouver Island, B.C.
    Posts
    2,458
    IF it's short on charge.....you should be running "0" SC...
    "The quality you deserve is not expensive---it's priceless"

  8. #24708
    Join Date
    Feb 2012
    Location
    GTA, ON
    Posts
    1,233
    'Morning Bret and everyone.

  9. #24709
    Join Date
    Jun 2004
    Location
    Location:Raleigh NC
    Posts
    9,603
    fix more later sick and weak night
    If you help others then you are a Success

  10. #24710
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    17,863
    Good morning, Bret and everyone!

    Stay safe.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  11. #24711
    Join Date
    Mar 2008
    Location
    Fuquay Varina, N.C.
    Posts
    419
    Good Morning Bret and Everyone, Happy Independence Day, Stay safe and enjoy.
    RSES Member.
    Mainstream Engineering Certified.
    HVAC/R PM Technician.
    410A, & GREEN HVAC/R Technician.
    NATE Core.
    Working not as to please men but to the Glory of Christ my KING.

  12. #24712
    Join Date
    Feb 2012
    Location
    GTA, ON
    Posts
    1,233
    'Mornin Bret and everyone.. Time to throw some dead animal flesh on hot iron Happy ID!

  13. #24713
    Join Date
    Jun 2004
    Location
    Location:Raleigh NC
    Posts
    9,603
    happy 4th all
    better today rest up and family time Will post about unit later
    If you help others then you are a Success

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