Attention Service Technicians and Installers! In this video Bryan explains How to Braze Air Conditioning Copper.
Harris Brazing Guide: https://www.harrisproductsgroup.com/~/media/Files/PDF/Requested%20Resources/GuidetoBrazingandSoldering.pdf
Read all the tech tips, take the quizzes
and find our handy calculators at https://www.hvacrschool.com

49 thoughts on “How to braze air conditioning copper”
  1. Avataaar/Circle Created with python_avatars Jeffery Spinelli says:

    Brian, You Rule.

  2. Avataaar/Circle Created with python_avatars Rynal Ram says:

    What is the best rod for vechicle air-conditioning oxy-acetylene gas welding with a t joint

  3. Avataaar/Circle Created with python_avatars winkhvac says:

    Nice

  4. Avataaar/Circle Created with python_avatars Watcher Watchmen says:

    I'm specifically looking at these videos as a refresher before I DIY. My problem is that the reputable companies are solid booked 3 months in the future and aren't taking new customers. The ones that have time aren't willing to do what I want because all they'll get paid is labor. No commission or markups because I already bought my supplies. This isn't rocket science. Purge, Braze it, pressure test, pull a vacuum, charge it, check subcool. Plus, I get to keep the tools I bought for future projects. It's a win-win. I really hate the elitist mentality some technicians have, like other people can't read, watch videos and learn. Guess how they teach people in HVAC school? A lot of reading, watching videos, and a lab to practice what they're learning.The tip about practicing on some copper pipe beforehand is really good advice and a good confidence builder. I've got Argon which I'll be using to purge, since I already have a tank and regulator for it. Another cool thing to try if you like welding is TIG brazing. Check out This Old Tony's videos.

  5. Avataaar/Circle Created with python_avatars Em1 says:

    I gotta say that wet rag sucks cleaning afterwards, tradituinal wet rags cut to right size works the best, wet rag stuff is really good for watercooled like trane tiny ptacs reversing valves, txvs etc..botgerwise I wouldn't use that sruff on anythibg large

  6. Avataaar/Circle Created with python_avatars Douglas Windsor says:

    My reason for watching this and other utube video is that I have a ac unit and it want to turn it to a heat pump and add a water transfer unit to heat my hot water as well as one to transfer heat from and to well water and I don't want to buy a new unit starting with adding a reversing valve and diverting valves to switch from one to the other I'd rather have a professional do it but they don't make as much money per hour as they do on commission selling a new one

  7. Avataaar/Circle Created with python_avatars Xmonders says:

    Loud and clear speech that I can understand easily ๐Ÿ‘

  8. Avataaar/Circle Created with python_avatars rob61aaz says:

    I am retired HVAC tech, I did just trouble shooting and repairs and replacements. When soldering the dryer i ran the heat from the tubing side to the dryer and never had a burned dryer. As for the service ports again never used a ret rag or anything.. As for silver soldering, back then there was a 3 ton york unit that whistled. My boss called me in and told me I had to add mufflers to 4 units at one house, I said your full of shit.. But he was right.. I used turbo torch with a number 10 tip and sli fos 15% .. Also if I ran into different size copper and did not have the adapter so ( and not proud) put the tube inside and crimped it and filled in with the sil fos..

  9. Avataaar/Circle Created with python_avatars VeraVentures says:

    Wish they teached this to me at my trade school Are you in Orleans ?

  10. Avataaar/Circle Created with python_avatars sesethu magxala says:

    I'm

  11. Avataaar/Circle Created with python_avatars Theo Isaac says:

    ๐Ÿ’ฏ๐Ÿ‘

  12. Avataaar/Circle Created with python_avatars Eddie Lammers says:

    Excellent video. All the correct steps explained well.

  13. Avataaar/Circle Created with python_avatars anthony Valenzuela says:

    Another awesome training video, Thank you

  14. Avataaar/Circle Created with python_avatars EFD620G says:

    Not a word about flux????

  15. Avataaar/Circle Created with python_avatars Consumers Gasman says:

    nice video, a few years backI installed a unit for my son……while in HVAC wholesale asked 2-3 different techs about nitrogen trickle….all said they never bothered….only one said he would use it on large refrigeration units only….can see why things dont last,everybody just doing whats faster and easier rather than better. Are you in Kanata ?

  16. Avataaar/Circle Created with python_avatars Pinoy Gas Tech - HVAC says:

    Hi Bryan, do you recommend using Stay-Brite 8 with Stay-Clean flux instead of brazing? So it not need of purging nitrogen? Hope to hear your thoughts.

  17. Avataaar/Circle Created with python_avatars Asaad Ali says:

    thank you Are you in Ottawa ?

  18. Avataaar/Circle Created with python_avatars Tom Thumb says:

    GREAT video!

  19. Avataaar/Circle Created with python_avatars Christian says:

    If you can solder copper tubes for water lines, you can braze them for A/C units.
    I had a job as a young man brazing A/C units for large computer systems. Itโ€™s the same idea.

  20. Avataaar/Circle Created with python_avatars Past'uh says:

    Within 3 seconds of your video, I saw "flow with nitrogen" and you have just earned my sub. Nobody teaches that, the company that hired me from school had nobody doing it, even the "masters"… The company I'm with now, crazy. You KNOW your with real masters or listening to one, when they tell you this right stuff to do. Loving the field, and loving how much I'm learning from the true pros in the field. 3 years I'll have mastered the trade too. Guaranteed.

  21. Avataaar/Circle Created with python_avatars MIGUEL ANGEL GARCIA GARCIA says:

    THAT'S COOL. AND THANKYOU FOR ALL YOURS TIPS.

  22. Avataaar/Circle Created with python_avatars Gene Pierson says:

    DYI…Lol

  23. Avataaar/Circle Created with python_avatars The journey to Heaven says:

    I'm doing this d.i.y and I dont give a damn with my torch in my hand.

  24. Avataaar/Circle Created with python_avatars Brandon Conley says:

    I'm in school for hvac and I gotta say these videos are essential.

  25. Avataaar/Circle Created with python_avatars Max Dax says:

    Gotta use brazing flux, will make the whole brazing flux fool proof. That "draw in" is specifically called capillary action and the flux is the one which is responsible for assisting in "draw in" (capillary action). Never rely with the incorporated flux in the brazing material because it sucks, always use a brazing flux designed specifically for the metal(s) in question.

  26. Avataaar/Circle Created with python_avatars luis villegas says:

    Very good video

  27. Avataaar/Circle Created with python_avatars Pugs McGeeโ€™s says:

    I learned at the top company here , to soft solder , I know how to braze but I still love soft soldering most my joints if itโ€™s not inside the condenser

  28. Avataaar/Circle Created with python_avatars Ning He says:

    your voice is very engaging, explanation very clear, your English sounds beautiful

  29. Avataaar/Circle Created with python_avatars john d. says:

    The quite time I spend w God need to be alone or w Christian only so the msg is in full and not interrupted sorry bro and Lenard.

  30. Avataaar/Circle Created with python_avatars john d. says:

    But spend time w God is the most important.

  31. Avataaar/Circle Created with python_avatars john d. says:

    So many fields to get good in my case

  32. Avataaar/Circle Created with python_avatars mdunbar008 says:

    So what is the purpose of brazing vs soldering? I've heard you are supposed to braze flammable gas and O2 lines inside buildings so the joints won't fail in a fire, but these are outside. Service area Ottawa??

  33. Avataaar/Circle Created with python_avatars David Schwartz says:

    Need more emphasis on having a fire extinguisher standing by!

  34. Avataaar/Circle Created with python_avatars Jim W says:

    Thank you for suggesting that a DIY'er not attempt this. As a DIY'er I accept your challenge. I've been emboldened to find me a torch and a bunch of copper tubing before I set my sights upon my LG Refrigerator.

  35. Avataaar/Circle Created with python_avatars Ray Josephs says:

    F'ing hack just the other day installed TWO high end Carrier inverter side cooling systems with matching air handlers at my home and DIDN'T use nitrogen. AND… he NEVER pulled a vacuum either!
    I told him you just compromised and contaminated my TWO new expensive AC systems.
    He said "they will be fine".
    He gets his equipment from Peirce-Phelps and a rep from PP came out because I was concerned about my two new systems… didn't the Peirce Phelps rep take the side of the installer WTF! Service area Orleans??

  36. Avataaar/Circle Created with python_avatars My Youtube says:

    (1.) 15% rods? Tell that to your cheap employer. (2.) Induction heating may take some getting used to, but you can pick the exact temp, and never needs gas …just 120 vac. No bottles no hoses. (3.) Nitrogen is nice, but I prefer CO2.

  37. Avataaar/Circle Created with python_avatars Richard Visco says:

    What do you think about diversatech brazing gauge that has 3 settings off purge braze

  38. Avataaar/Circle Created with python_avatars Galen Matson says:

    Thanks so much for the great explanation. I've never done this before and, despite the warnings, going to attempt this on an inexpensive window unit for my van. I've tried to find an AC tech in my area that will do it for $$ but there are no takers so it's time for me to acquire a new skill.

  39. Avataaar/Circle Created with python_avatars Juan Acosta says:

    Great video what regulator u recommend to get and allso for the nitrogen and the acetylene tank regulators to?? Are you in Nepean ?

  40. Avataaar/Circle Created with python_avatars iohannesfactotum says:

    Exactly what I was looking for.

  41. Avataaar/Circle Created with python_avatars Manny_392 says:

    Good videos!!!!

  42. Avataaar/Circle Created with python_avatars Sergio L. Pita says:

    Really good video,๐Ÿ‘Œ ๐Ÿ‘ Service area Kanata??

  43. Avataaar/Circle Created with python_avatars James Rooney says:

    what about stay brite8 i see lots of people using it ??

  44. Avataaar/Circle Created with python_avatars Elias Nadi says:

    Another side note for this video is that WESTERN ENTERPRISES makes a very good Nitrogen regulator- the VN-500 that actually has Purge/Flow/test pressure settings exactly made for brazing properly. I also use their internally regulated Oxy Acetylene regulators as well and they are amazing.

  45. Avataaar/Circle Created with python_avatars Gary Tooker says:

    Don't be intimidated. It's not that hard to learn. All of my techs learned it in a matter of minutes. I've been in business for 33 years.

  46. Avataaar/Circle Created with python_avatars Sreejith Ts says:

    one of best video to technicians related to hvac brazing work Service area Barrhaven??

  47. Avataaar/Circle Created with python_avatars Gary Winters says:

    Let us hope the guy before me saw this educational video and did not forget to purge, flow and melt the seal around the factory valves… do it right once and build a little confidence.
    Thanks for all your great videos about hvac service, it gives tje senior technicians a place to go and wind down after a long day.
    Two years, two months, two years, two months…to go. ๐Ÿ‘๐Ÿผ

  48. Avataaar/Circle Created with python_avatars Google Account says:

    Fun story…. I'm just a home owner that read the install manual for our new AC unit.

    HVAC guys come out to install….I ask them…are you going to flow nitrogen while you braze? Installers said I've been doing this for 20 years and never heard of that.

    Company owner came out to do the install and show his installers how to do it.

  49. Avataaar/Circle Created with python_avatars Smith Nick says:

    Good Job ๐Ÿ‘Œ๐Ÿพ

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