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turbo torch tip sizes

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Comments

  • pecmsg
    pecmsg Member Posts: 6,079

    POE changed all that, as well as mini splits.
    POE is a cleaning solvent, it scrubs the lines clean!
    minis do NOT use filters they use screens. That carbon oxide plugs them

    ChrisJ
  • ratio
    ratio Member Posts: 3,988

    Flowing nitrogen is just plain good to do.

    I suppose you can go over the top if you work at it a while, but the A2L protocols require it everywhere now, so giving my guys a choice to do it or not will just confuse them. ALL VRF systems require it for the extended warranty & likely the regular warranty. Flowing nitrogen will flush contaminates & moisture out of the lineset, your vac will pull down faster. You have to have the bottle out anyway for the pressure test.

    No down side. Except, I guess, toting the bottles up the ladder to the roof. That's hard.

    ChrisJ
  • ChrisJ
    ChrisJ Member Posts: 16,714

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • mattmia2
    mattmia2 Member Posts: 12,740

    pretty sure the manufacturers of r22 equipment required it too

  • Big Ed_4
    Big Ed_4 Member Posts: 3,200

    Back in the days , we flushed the lines with R11 …. :)

    There was an error rendering this rich post.

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 17,786

    You can also use Co2. We used that with the small aluminum tanks. It holds a lot more gas than a nitrogen tank and a lot less weight.

  • ChrisJ
    ChrisJ Member Posts: 16,714

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • ratio
    ratio Member Posts: 3,988

    I use 40 cu ft bottles when I can, 80's when I can't, occasionally 125's, and once a (well, many, sequentially) manifold of 12x 200's.

    Not sure about flowing CO₂ during brazing. I'd think that the temperatures may lend themselves to breaking down the CO₂ and then we're back where we started; but I admit to never having actually checked that such is the case. The bottle threads are different, IIRC.

    ChrisJ
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 17,786

    CO2 is an inert gas like nitrogen

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