I hate warm suction lines - Page 2
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  1. #14
    Join Date
    Jun 2008
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    Bartlett, TN
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    108
    I'm thankful for any and all info here.
    This is just the best ever to have all of this knowledge at your fingertips.

  2. #15
    Join Date
    Mar 2007
    Location
    media,pa
    Posts
    80
    it sounds like you are still undercharged,but you need to check your sh or sc.

  3. #16
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,923
    Quote Originally Posted by kg321 View Post
    Goodman, 4-ton- 3 yrs old.

    I've always relied more on the pressures than reading SC SH.
    Guess I need to make SC SH part of routine checks.
    Pressures alone tells us absolutely nothing except that there is something in the system or not.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  4. #17
    Join Date
    Jun 2008
    Location
    Bartlett, TN
    Posts
    108
    At 65 on low side, even if still a little undercharged, would'nt suction line be sweating, cool, or something. If I add more gas, the head pressure will continue to go up.

  5. #18
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,923
    Quote Originally Posted by kg321 View Post
    At 65 on low side, even if still a little undercharged, would'nt suction line be sweating, cool, or something. If I add more gas, the head pressure will continue to go up.
    You need to get accurate temperatures of refrigerant tubing before anyone can tell anything. This is why there are T/P (Temperature/Pressure) charts. One without the other is meaningless.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  6. #19
    Join Date
    Dec 2002
    Location
    Toledo, Ohio, United States
    Posts
    12,899
    Twilli says 3 more post and you can apply for pro membership
    No Heat No Cool You need Action Fast

  7. #20
    Join Date
    Jun 2008
    Location
    Bartlett, TN
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    108
    I like the way Twilli thinks.....

  8. #21
    Join Date
    Dec 2002
    Location
    Houston,Tx.
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    15,785
    Quote Originally Posted by kg321 View Post
    I like the way Twilli thinks.....
    Twilli Thinks?
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

    "Never let success go to your head, and never let failure go to your heart". - Unknown

  9. #22
    Join Date
    Apr 2008
    Posts
    71
    The only reason i look at pressures is to know saturation temps of coils.Sh and Sc very important!

  10. #23
    Join Date
    Jun 2008
    Posts
    35

    Superheat is a pain

    I understand this guy falling back on pressure. I am new contractor, but I just find SuperHeat is difficult for me to measure. I get the target and actual, but I always feel uncomfortable that i am not doing it right, I use a digital therm for my wetbulb (I hate thought of using sling) and i use a digital therm with a probe for my suction line. Drives me nuts. I never feel the numbers are right. Do i have to wrap the suction line with a towel to get a good reading... Any advice on an easier way would be appreciated. Oh yeah, any comments on just using some of those fancy electric Superheat readers out there?

  11. #24
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,613
    A good clamp probe will get you a good reading from your line set. No need to wrap it.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  12. #25
    Join Date
    Dec 2002
    Location
    Toledo, Ohio, United States
    Posts
    12,899
    Twilli says buy a set of digital guages
    No Heat No Cool You need Action Fast

  13. #26
    Join Date
    Jun 2008
    Posts
    35
    Twilli do you mean digital gauges for my superheat or just my pressure. So you guys think digital superheat readers are better than old fashioned methods. Someone else chime in I need another opinion other than twilli one liners. Which vendor has best set of digital gauges. My supplier does not stock them, they have to special order.

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