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Type: Posts; User: joeywpittman

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  1. Replies
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    3,184

    Problem solved! We just started working on this...

    Problem solved!
    We just started working on this facility this month.

    We replaced the 1967 circuit setter with a modern B&G circuit setter.
    I was then able to measure the amount of water flowing...
  2. Replies
    21
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    3,184

    the coils are stacked one on top the other, the...

    the coils are stacked one on top the other, the piping does make it look like the top one is out in front, but it isnt. Each supply line goes to a separate coil. I just started working on this...
  3. Replies
    12
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    3,444

    Static Pressure (Sp) This is pressure that is...

    Static Pressure (Sp) This is pressure that is exerted in all directions of a duct. When static pressure = total pressure there would be no flow.

    Velocity Pressure (Vp) The difference between...
  4. Replies
    21
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    3,184

    no, according to the teachers, it has been hot...

    no, according to the teachers, it has been hot for 10 years
  5. Replies
    21
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    3,184

    today i valved off the water and opened up the AB...

    today i valved off the water and opened up the AB side of the 3-way valve.
    I watched the internal piston/plunger stroke all the way up then all the way down. It fully seated in both directions.
    ...
  6. Replies
    21
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    3,184

    Lic to chill i measured the r/a temp at the...

    Lic to chill
    i measured the r/a temp at the mixing box before the chw coil,
    the outside air dampers have been disconnected by someone else.

    maxster
    its not glycol, the actuator is 100% fully...
  7. Replies
    21
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    3,184

    chill water AHU, not cooling properly

    43932
    43942

    43952 43962 43972 43982




    Ok, AHU 1
    York M: CS402SVMP D AHU-1
  8. Replies
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    9,738

    80 + 15 = 95 220 + 15 = 235 235/95=2.47 2.5 to...

    80 + 15 = 95
    220 + 15 = 235
    235/95=2.47
    2.5 to 1 compression ratio
  9. Replies
    19
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    2,122

    Where did you here that a pitot tube can be off...

    Where did you here that a pitot tube can be off +/- 20%????
  10. Replies
    3
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    12,924

    http://members.cox.net/epittman2/hvac-talk/sheetme...

    http://members.cox.net/epittman2/hvac-talk/sheetmetal%20cost-weight.jpg

    how is this???

    jwp
  11. Replies
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    2,663

    http://i159.photobucket.com/albums/t127/joeywpittm...

    http://i159.photobucket.com/albums/t127/joeywpittman/shaft%20seal/026_26_0001.jpg



    check out the photo album
    link on the link
    ...
  12. Replies
    6
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    980

    too low

    too low
  13. Replies
    10
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    1,096

    what is the ambient temp. when this happens???

    what is the ambient temp. when this happens???
  14. Replies
    10
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    1,096

    no subcooling?? A)is that assumed because...

    no subcooling??

    A)is that assumed because there was a flashing sight glass.
    or
    B) the sat. temp. minus LL temp. = 0*
  15. Replies
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    4,199

    http://members.cox.net/epittman2/hvac-talk/part%20...

    http://members.cox.net/epittman2/hvac-talk/part%20winding%20start.JPG
  16. Replies
    34
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    7,291

    home depot ownes trane

    home depot ownes trane
  17. Replies
    18
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    2,082

    ?1 77* loop is that temp the supply or return ...

    ?1 77* loop is that temp the supply or return

    ?2 how did you verify 12 gpm

    ?3 what is the chances of the original charge having air in it. was the original charge put back in



    [Edited...
  18. Replies
    8
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    729

    what brand and model compressor are you referring...

    what brand and model compressor are you referring to??
  19. Replies
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    832

    there are two basic types of compressors:...

    there are two basic types of compressors: positive-displacement and dynamic.

    Positive-displacement compressors increase refrigerant vapor pressure by reducing the volume of the compression...
  20. Replies
    8
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    729

    the compressor's oil pump has to build up oil...

    the compressor's oil pump has to build up oil pressure before the oil can be used to hydraulicly activate the unloader assemble.

    if the compressor is not running there is no net oil pressure.
    ...
  21. Replies
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    2,082

    http://members.cox.net/epittman2/hvac-talk/FHP%20E...

    http://members.cox.net/epittman2/hvac-talk/FHP%20EM048.JPG
  22. Replies
    7
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    999

    send off for an oil analysis

    send off for an oil analysis
  23. Replies
    6
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    1,088

    what are white papers?

    what are white papers?
  24. try (20) 50-gallon drums

    try (20) 50-gallon drums
  25. Replies
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    3,622

    Trane Voyager restricted orifices

    Trane Voyager restricted orifices
    M#YCD180B3L0EA
    S#M451022097D

    has any one found an easy way to clean out the restricted orifices without installing a new orfice tube kit or and without...
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