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  1. #1
    Join Date
    Sep 2003
    Posts
    24
    What's the logic behind some of the letter designations used for labeling thermostat and control connections? "G" for fan control, "Y" for cooling, "W" for heating, not very intuitive.

  2. #2
    It's done that way to confuse homeowners, fourth graders and engineers... works too.

  3. #3
    Join Date
    Nov 2001
    Posts
    1,874
    Why does everything have to be analeyesd ?

    Our fields white coats mess with us enough.
    Why does your mind always have to think everything can be fixed ?

    Theres nothing wrong with the system, let it go.
    Before it eats you up.
    If you try to fail, and succeed.
    Which have you done ?



  4. #4
    Join Date
    Sep 2003
    Posts
    24
    Its ok to admit you don't know the answer to the question!

  5. #5
    Join Date
    Nov 2004
    Posts
    2,927
    What does "intuitive" mean?

  6. #6
    Join Date
    Jun 2005
    Posts
    171

    Smile

    we don't know everything coz if we do, we stop learning.
    Somebody decided it as a STANDARD way of labeling the terminals and if EVERY TECHNICIAN will abide by it, troubleshooting would be an easy task. Just like driving
    you follow rules for your safety and safety of others.

  7. #7
    Join Date
    Jun 2005
    Posts
    171
    R-red
    Y-yellow
    G-green
    W-white

  8. #8
    Join Date
    Sep 2003
    Posts
    24
    I think you're right. The terminals were probably labeled to match the color of wire that is supposed to be landed on it. From what I have seen, not many people are following this system with their controls wiring.

    Good thing that the manufacturers that make relays don't use that system.

  9. #9
    Originally posted by crn
    Its ok to admit you don't know the answer to the question!
    Perhaps the first time it was asked of me 20-some years ago... But now I like to keep these facts locked deep inside for those worthy of knowing. Hell, I won't even stay in the same room with an engineer unless he/she agrees to wear the awesome hat.

  10. #10
    Originally posted by kelvin
    R-red
    Y-yellow
    G-green
    W-white
    LMFAO! You tease...

  11. #11
    Originally posted by jacob perkins
    What does "intuitive" mean?
    Derived from "intuition" it means being able to discern what something does, or is used for, or means just by examining it.

  12. #12
    Join Date
    Dec 2002
    Location
    Toledo, Ohio, United States
    Posts
    12,910
    Your
    Woman
    Gives
    Rashes
    No Heat No Cool You need Action Fast

  13. #13
    Join Date
    Jan 2001
    Posts
    7,708
    Take a look at some commercial installations...we run up onto a lot of industrial stuff where the control wiring..even the low volt small stuff was wired with stranded wire in conduit...all wires the same color and labeled with those little wire labels...1,2,3,...or a,b,c,... and after 20 plus years of service the labels are either gone or illegible.....and the terminals are not marked...and there is no schematic for the unit because it has either gotten wet or moldy or dirty and you cant read it or its just not there.........

    Be thankfull for color coded stat wire....and never assume that the colors mean anything.....

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