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YJ Brute II, Titan, or plain ole Series 41?

Discussion in 'Tools and Test Equip' started by Raymond Moreno Jr, Aug 5, 2017.

  1. Raymond Moreno Jr

    Raymond Moreno Jr New Member

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    Interesting about the mesh, Psychic Gorilla. Thank you.

    But i still don't know what "rack" refers to in residential HVAC.

    Nor what a "3/8" inch flared T" is used for.

    Trying to learn something here, but it's looking like this might not be the place. :(
     
    Last edited: Aug 6, 2017
  2. crackertech

    crackertech assholiness *

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    Hang in there hears a Rack that we deal with in the Market world racks.jpg
     
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  3. knave

    knave Undeterred

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    Ok you don't have to worry about racks for now. A rack system refers to a rack with several compressors on it, pumping in parallel, they share common suction and discharge headers. Usually in grocery markets.

    3/8" or 1/2" tee on the vacuum pump is used to connect two larger hoses directly to the system you are evacuating.
    The valve core removal tools allow you to remove the schrader valve during vacuum and charging. IMG_1404.JPG
    They are quite slick actually, and then you can put the cores in without losing gas.
     
    Raymond Moreno Jr likes this.
  4. Jon

    Jon Team Canada

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    I like the other rack posted. These kinda racks give me nightmares .

    OP you need some tough skin around here for the most part. You main learn a thing or two if you stick around.
     
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  5. knave

    knave Undeterred

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    You must be talking about the coat rack? :D
     
  6. crackertech

    crackertech assholiness *

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    and those kind of racks cause way more nightmares lol
     
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  7. Texas-Tech

    Texas-Tech Official Geezer*

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    The only rack you need to be concerned with in residential ac is the rack on the home owners wife:D
     
  8. mike1020

    mike1020 entitled millennial

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    I personally don't like 4 valve manifolds, they are too cumbersome.

    And a 4 hose manifold doesn't charge or pull a vacuum that much faster than a normal 3 hose manifold.
     
    Raymond Moreno Jr likes this.
  9. Raymond Moreno Jr

    Raymond Moreno Jr New Member

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    Thanks, Crackertech, Knave, and Mike 1020. :)

    I knew what "core tools" meant after they explained it meant for core removal.

    Still a little confused by the 3/8" or 1/2" tee. What do you mean by, "...is used to connect two larger hoses directly to the system you are evacuating"?

    You can connect two hoses to a system you are evacuating?

    It must be a huge commercial system, and not a residential system, right?
     
  10. mike1020

    mike1020 entitled millennial

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    I will try and find a picture of the "big hose" vacuum setup
     
  11. crackertech

    crackertech assholiness *

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    I always used 3/8'' hoses to vac a Rack and a huge vac pump and it still took a good 3-4 days to get it there
     
  12. mike1020

    mike1020 entitled millennial

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  13. mike1020

    mike1020 entitled millennial

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    Ok that picture didn't turn out too great lol
     
  14. crackertech

    crackertech assholiness *

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    Try again lol
     
  15. Raymond Moreno Jr

    Raymond Moreno Jr New Member

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    I'm actually pondering on what one of y'all said. In that using a larger stand-alone hose (with a micron gauge attached to it), attached to the vacuum would be best for evacuating a system.

    Just bypass the gauge manifold all together.

    Hmmmmm...

    It would be an extra (separate) part to carry. But then again, one more factor taken out of the evacuation process that may fail.

    I guess it would depend on how many Brute 2 or Titan gauges actually go bad during the evacuation/leak test process.

    Thinking this through.

    One more thing. One of y'all mentioned that there is a screen on the Titan and Brute 2, but not on the series 41 manifold gauges. Does that screen REALLY slow down the process that much? Or do the pro's of placing a screen on there outweigh the slower flow rates?

    More questions to follow...I'm sure. :)
     
  16. knave

    knave Undeterred

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    Getting to a deep vacuum can take a long while, even with resi equipment. Especially if the system was open for awhile or if you are pulling on a compressor with refrigerant boiling out of the oil.

    So if you want to use a micron gauge and hold a super-low vacuum, it saves time to eliminate the manifold and quit pulling through Schroeder valves.
     
  17. Raymond Moreno Jr

    Raymond Moreno Jr New Member

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    Knave, I still do not completely understand.

    I know you remove the Schrader valve core before evacuation, leave the Schrader valve tool in place, and evacuate through the tool.

    But what do you mean by, "...and quit pulling through Schrader valves"?

    How can you evacuate without pulling through a Schrader valve?
     
  18. knave

    knave Undeterred

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    Sorry Raymond, I meant Schrader valve core, which technically is also the valve.
     
  19. knave

    knave Undeterred

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    Something is missing here.
    Have you been doing work in the field or going to school?
     
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  20. crackertech

    crackertech assholiness *

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    X2 and a 3/8's hose speeds things up