How to Bend, Prep, and BRAZE Copper to Copper on an HVAC System
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- čas přidán 19. 04. 2021
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In this video I show my process on how I bend, prep, and braze copper to copper on a Goodman HVAC split heat pump unit. Preparation is key! Take your time and you'll have great results!
#hvac #brazing #bendingcopper - Krátké a kreslené filmy
Been bending,brazing, soldering for years got it down but yet still watch any video you put out! Love the channel man keep it up!
You probably don’t do alot of residential duct work but if a client came to you looking to have new ducts installed im sure you could and would do it. So i think it would be a cool and simple video seeing how you would draw and calculate plans for a generic house. Like how to calculate duct sizes for every room and how you would go about running them so that it’s not a clutter mess but instead it looks organized and works efficiently. Hopefully that’s something you’d be interested in doing because i think it could help out alot of us new and upcoming techs but either way thanks for reading this comment and keep up the great work👍👍
Good idea, but with my company. The builder/architect always have the duct calculated out, or I just sub out a sheetmetal guy. One thing I wish I would have mastered, if u young and just starting out, take full advantage of any sheet metal classes/training. My trade school didn't do dick with sheetmetal.
@@AllTattedUp13 yea same here, my trade school didn’t have a chapter or a course where we could focus on duct work for a couple weeks and the company im working for now does service and repairs only really. Im starting to do more side work like repair, unit change outs and i feel comfortable with that. But if they were interested in having new duct work installed or even something as simple as having the old duct work moved around and reorganize i wouldn’t know where to start. Im just trying to become well rounded in every aspect of the hvac trade.
@@iwddwi_hvacr7425 100% get what ur saying. I can do sheetmetal but what takes a tin knocker 20min takes me 2hrs lol. That's why I just sub out a metal guy. If ur doing side work/installs. Go to ur parts house and ask if they know a metal guy, or leave a sign up on parts bulletin board. That's how I found my metal guy. But I'm like u, I'd like to learn it more. It's an art form. Just like anything else, takes years to master.
@@AllTattedUp13 yea im going to have to do that. I think im always going to view myself as a rookie, there just to much to learn and always room for improvement lol
Duct sizing can be done by rule of thumb and a ductulator. To do it properly you need a manual D & j which is calculated by a softwares
I personally like safety polarized sun glasses when I braze just keep my vision good for a long time, All my Journeymen and Master techs had reading and seeing glasses for looking at that blue flame for years
I like that heat blanket. I’m still using old metal car tags with cut outs.
Good video!
I'm giving away my age, back in the late 70s the price of silver was thru the roof and we use to use metal cloths hanger to braze with. Today's metal hangers will not do the job. We're talking about metal cloths hangers from the 50s and 60s, not sure what was in it, but they use to work great, flowed like 15%....
I really have to admit, like the teacher HVAC servicetech, and you are really excellent on teaching, Thank you.
Reminds me of contractors i work for. Not worried about duct, just making line sets look pretty and making me add air scrubbers and three inch filters just to make price wayyy higher. It doesnt take much to make it look good if you care about the end result.
Not putting down tour work. Love what toure doing. Wish i had the patience and time to do it myslef. Keep kickin ass bud.
good tip when using a hand ratcheting bender is when the bottom of your wedge reaches the top of the t-bar its almost always near a perfect 90! cheers from a fellow HVAC installer
Klein makes a magnetic digital angle gauge and level that I use to bend conduit to make perfect 90’s almost every time. That may be a good solution if you’re not as confident eye balling with that bender.
Peep the spider running for his life at 11:04 lol
Wow! You cut out the most critical part: how you measure for bends (back to back, center to center, inside to outside?) Can you do a vid on the measurements to take and where you put your mark onto the bender to get an exact point to point bend.
You measure your measurements to center of the tip
@@peterdezhnyuk1420 there's lines on the Hilmor bender for inside and outside measurments.
Seriously came looking for this and he mentioned his actual process for those precise bends
I just finished my Hvac men. Was a great video for to keep on learning. Bendiciones.
Really liked your video.The precaution U take when Brazing is great.could U do a video on pipe bending in detail with measurements etc.Thanks
Great video as always Zach
Good job and keep up the great content. Ive come to always keep a fire extinguisher near me everytime im doing any torch work. Its better to have it nearby, than to need it and not know where it is.
I like that you turned you heat down for the ³/⁸" fit-up and that you covered the lumber. That is all.
I used the bender yesterday. Really easy to use. My helper on the other hand used a 90 and had three leaks. His technique needs some work. I had one leak.
great presentation Zack
Nice job. You should try staybrite #8, no nitro needed only small map gas cylinder and proper torch, throw it in a bucket and great for attics, light and easy.
StayBrite #8 is the best for installing new equipment. I used a propane torch.
Thank you bruddah!! Your awesome!! God bless you and your family!!😇
Huge fan of your work man .. I live in the Davidson area hope to meet you one day and give you props personally..
You missed the most important part....the calculation on bend measurement to get the pipe to fit.
Maybe wants to leave that trick to himself
yep wished he had shown the take off
I agree, I watched for bending tricks not product placement.
@@SalvadorHVAC lol shit
yea thats what i was hoping for
Nice demo Zack👍
I love the bender. I lucked up and got one new from the local pawn shop for $99.99!!! And a Field Piece $300 leak detector for $125. And even better yet. A brand new set of Testo digital refrigerant gauges for $125!! The leak detector and gauges. Were brand new!!
Your video was very informative & your bends came out perfectly. It looked like the acetylene/air torch did a better job than the oxygen/acetylene torch did. Having to only worry about one tank makes things a lot simpler & costs less too.
Nice as always 👏🏼
Nice video, that's clean
Nice demonstration !
Great video Zach! I have been using a turbo torch for a few years now. Absolutely love it! Light weight and gets the job done
Can you use turbo torch for pro hvac jobs instead of oxy acetylene?
@@hgn1832 you can. I do all the time
Nice and clean job
True to the name. Good quality of work. You definitely know what you're doing. That being said, I do recommend some eye protection.
Great job Zack!!! Always good stuff here!
Hey Craig what is the difference between oxy acetylene and air acetylene? Is it just personal preference? And what's a recommended tip size for air?
Air acetylene is good, harder to get a neater braise joint, but quick and easy. Lighter and easier to move around on the job. They are noisy AF, need ear muffs for sure. I've used it on everything from supermarket refrigeration, air, and everything else to a small unit. It's not good IMO on TXVs etc. Just like mapp gas, it draws air in from near the tip to keep the flame hot and functioning. Most TXVs are deliberately installed in the hardest spot to get to, so it will draw in its spent oxygen that the flame has burnt and make it dull. You know what I mean. I used to do alot of install work and used it almost daily. I still use it in service, but not as often, and probably wouldn't buy one if that's all I did.
Is the air acetylene tank the same as a “B tank”?
You are a monster man exelent video
Love your oxy/acetylene brazing torch..i think I need one like that
Thanks for sharing your skills
I like the turbo torch setup for sure. Great video as always man. Keep up the good work!
You are Amazing Sir!! Thanks!!
Watching back here in philippines good stuff there man.. hope to one in the future
Great video thanks for sharing
Awesome video.
Great video .Wish I could find a cheaper tote for my B tank . I love my turbo torch .We were the first class in my hvac school to us a turbo torch and it was night and day difference. The two tank setup can be tricky when you first start off but with a turbo tank ,it seamed like everyone was getting some great welds right off the back .I didn't hear the popping noises from the two tank setup .
Great job 👏👍
Nice job great tools
Great job like all ways
Very good video. Thanks
What's up zach. Love your videos.
Pretty nice thanks 👍
Awesome channel
Hi Zack, Riad from Algeria, You are the best .
Nice que buen trabajo, congratulation.
Congratulations good job
It’s better than old days to prevent heat fry the the valves and TXV . I used turbo torch produce too much heat .
great videos
Nice 👍,,,, can I get the reverse bender for the hilmor separate??? Because I have the same kit less the reverse bender, it didn’t come with that piece just an empty slot in the box! 🙏
Do you have a video on how to measure to make those bends, the way you did it in this video?
Nice 👍🔥You still got to remove the Sensing bulb is things are too damn Sensitive they should at least handle about 200because the heat pump gets that hot sometimes. As well as the O-ring
My company uses wet rags and thermal paste to protect the units and for those rubber grommets we just slide them down the pipe and then put them back in afterwards
I got both I love the turbo that all u need
I was taught to make sure the pipe is almost glowing RED then you apply the solder , not sure if you did or not , couldn't really see , but want to ask , I've only brazed couple times, appreciate your input . Loving your video's to , new subscriber , thanks
Yes so you know that the copper is ready for the solder so it can be sucked up in there and you get better coverage, then repeat on the bottom. I myself always have problems with brazing under the copper lol.
Some quality brazing , what pressure settings do you use for liquid and vapor line ?
I'm guessing you won't have to add refrig to that system. Thxs for the vids!
Great video man, I'm in school switching careers, i would love to know your thought process while brazing. Like where you're applying heat, what you're looking for before you apply the solder weld. Maybe pressures on your regulators for oxygen and acetylene. As well as tips you've learned along the way that you personally like. Thanks for the great content.
I go 7psi & 10psi on my pressures. 7psi on the Acetylene, 10psi on the Oxygen. 👍
Just keep ur torch on the copper/fittings till they start to glow, or just tap ur braze rod up to joint every few sec and once it starts to flow, you know u got it hot enough and that's when u can start backing off with torch and just hit it again when it's not flowing like liquid. You'll get the hang of it, becomes 2nd nature after awhile.
I learned that once it’s hot enough to start flowing you move the torch farther inward towards the joint to suck in the solder.
PRACTICE. The nice thing about brazing and soldering is you can melt it off, clean up and reattack. Also do some structural brazing because braze joints are quite shock-resistant and being able to make things with the same torch you use for tubing can be quite handy. You can gas weld and braze sheet metal but avoid doing galvanized because the fumes are legit dangerous. Torches are wonderful things ANY mechanic or tech should have. Get some torch cutting practice on scrap too because it comes in handy. For example my bro and I buy used steel for our shop buildings, work benches etc and I bring a small cutting torch along to trim our scores to fit on the car trailer. A small cutting attachment can cut surprising thicknesses of steel effortlessly. All US-made torches have internal soft parts compatible with LP (I rebuilt my own torches and regs per factory literature) so be aware you can use LP cutting tips and run the torch off a BBQ jug by using CGA-510 adapters from your welding supply. You can run little torches off larger cylinders at home. I buy used cylinders off Fecesbook Marketplace because they're filled by exchange so buying new is pointlessly expensive.
very nice,dont forget the knee pads ,so you can last longer on the trade and protect your eyes.nice video.
Facts!!! I wish I would have listened to all the ol timer techs when I got in this trade. 20+ yrs later and my knees are starting to feel it. Shoulda woulda coulda...big dummy lol!!!
Great video. What is the difference between the soldering (water pipe) and brazing? technic?
I agree with a previous commentor. I use a competitors bender with the same general methodology. Dispenser works a little different than a conventional lever bender and there are marks on the one made by yellow jacket but you fail to show people how to get the marks, and lay out the pipe, so the piping comes out measurement and dimensional. Perfect, but thanks for the presentation.
Very good vídeo! Thanks!!! it would be better if the equipmente comes with the flanged valv, isn't it?
Always protect your eyes from uv and ir radiation when brazing. You don't realize you are damaging your retinas over time. You will eventually find everything is darker and it's hard to read stuff without a light. It's a gradual injury and it sucks.
What kind of glasses would you suggest for that ?
@@hgn1832 Any regular safety glasses will work as long as they are Z87+ rated. Should be printed or stamped on the side of the glasses.
@@hgn1832 Shade 3 face shields are more comfortable for me than glasses since I wear prescription glasses. Blue brazing lenses are even better but require either goggles or a welding helmet. tinmantech etc have those.
good job
Very nice Zack! The oxy acetylene flame didn’t seem right to me.. dirty tip maybe? Maybe I’m crazy? Lol either way great video.
You are on the money. His tip had too much acetylene (or not enough O2) flowing as evidenced by the orange flames. When adjusting for an oxy-acetylene torch for brazing copper you want a nice balance of ac and o2 so the flame tip isn't too tight (loud) nor isn't too loose. Once you get the needletip flame, pull back on the O2 so there is a little bit of a feather off of the torch tip, instead of the needlepoint blue flame. Should be a little quieter, a little bit cooler and more manageable.
Dude you are a great Saler..
If you braze and get a leak, can you heat and pop out the fitting like a soldered copper pipe for water or is it stuck and you have to cut it out? Thanks.
No fair, brazing with all the welds infront of you lol. Gotta love them installs where its butted up to a wall and u can barely get 2 hands in there to braze lol. Def gotta get me some that heat putty. Been using the gels but that shit goes everywhere but where u want it.
Can you put the gel in a wet paper towel?
@@etlawson6939 tried, the paper towel falls apart, also tried a rag. Just been using trusty ol wet rags. But there are them times when u gotta braze in close quarters. So ima grab me some of that putty block.👍👌👌
@@AllTattedUp13 , I use wet rags most of the time. Nothing else but I may try the putty.
@@etlawson6939 yea I mainly want it when brazing the line to evap coil. Cabinet right there, the rubber oring/grommets. I've had my guys braze them and the valve port they put on the coils when they pressurize them, had them shraders leak. Pain in the ass to have to take ur work apart cause that stem is leaking behind case coil lol. And a rag don't work well there cause it prevents copper from getting hot enough. That's where I been using the gel, shits messy.
I think a good thing to add to this video, for beginners such as myself when I went to school they taught us the 5 and Dime rule with the Oxygen and Acetylene. Is that a method you still used during your Braze?
It should be... Can't go wrong with oxy/ac
I would have liked to see you measure the pipe out! Love the videos!
I agree. Bending a 90 is easy. Bending a 90 in the exact spot you need it requires experience. I'd like to learn from his experience as to how and where to measure for a perfect fit
@@14idontcare14 With those benders you put your mark right in the center of the mandrel. I have the same type but a Yellow Jacket brand.
Nice.
If you had showed how you measure to get those nice accurate bends in place, it would have been even better. Maybe in the future homey.
I like the putty idea...also highly recommend safety glasses...
Muy bien maestro 👍👌 thanks
Question, if you don't have the tool to make smooth 90 deg bends, are you able to use 90 deg copper couplers and braze those instead?
possible bur not ideal less brasing on an install the better
Even thou you might have done it, I didn’t see you ream your ends, or clean your joints. I know most people say that with good 15% rod, you don’t need to clean the fittings, but to get full penetration it’s best to do. I see that you are melting the rod with the torch. Bend the rod in a short 90 at the end, and heat the fitting enough to melt the shoulder on its own. Feed the shoulder in form the opposite side of the torch, otherwise you’re just capping the joint and won’t get full penetration. If you do it this way, your in and out a lot faster, and don’t have to ad more shoulder and move it around. Same technique for stay brite # 8. Good video.
What pouch are you wearing on your right-hand side? I've been looking for something similar. Thank you.
Me encanto su video, fue excelente su video y como explico poco a poco, pero se le escapo varias cosas. me hubiera gustado que diera detalle de las presiones de la antorcha y como ajustarlo para tener una buena flama, y luego cambió de tanque, ese detalle me hubiera gustado, y la seguridad va primero, pero todo estuvo bueno
Can you solder the suction and liquid HVAC lines with regular propane or MAP gas the same way you solder plumbing water lines?
Hey how do you like those Brunt work boots? I ordered some of the slip on boots but they don’t ship till the end of the month.
I wish my HVAC installer had done it this way, especially making sure the air was purged.
Not bad. This process is a challenge to experienced techs. Heat is the enemy of copper and clean connections. I think the industry should give more consideration to the use of staybrite 8.
Been watching your videos. Are most package units on residential homes really all hooked up with flex in the nashville area? Im a duct man from north east alabama and most package units on residential homes have square duct for supply and round duct for return. Depending on the job, but really the only time i run across flex under a house is a crossover on a mobile home, then what i do from there depending on size of unit is run round hard pipe then reduce down again depending on size of unit, then tap into exsisting mobile home duct atleast four times kinda spread out on the trailer to get better air flow to the already crappy trailer duct. I normally will cut in a floor grill for the return and put a slanted filter so as not to make floor grill bigger than needed. Anyway about that, juat wondering how residential homes are hooked with flex..kinda blows my mind. I hope they arent spider web systems...
What is the psi you used for both the oxygen and acetylene?
Question: If you were going to seal the system with the cores, is it better to let nitrogen flow until you get the vacuum on? Just wondering if its faster.
Nitrogen purge until you can hold the effected areas with your hand.
Can you do a video on how long you measure the pipe to make it land where you want it once you get done bending the 90 degree bend. I have the same bending kit and I try and make my bends where they hit perfect but I always seem to mess up the measurements and have to cut out some of the pipe and braze it together where it will come out correct.
Try lining up the center of the copper you wanna connect to with the line on the tool
If its bending to the right use the right mark. Bending to the left use the left mark
@@ghettocereal just so I understand, let’s say that the line set needs to go up 20” and in 10”, do I cut the pipe 30”, Mark the pipe at 20” and then line the marks up?
Matt Florence honestly I have a hard time visualizing your question lol. The only way I can describe it is if you’re running along your tubing, when you make a bend you use the mark on the same side that you are bending. So if your line is going to the right and you make a bend, you use the right tick mark in the bender because you’re heading right. If you’re going left, you use the left tick mark. And the same concept basically applies for goin upwards or downwards if that makes sense. Just get some practice pieces and try it out
Its really easy once you get the hang of it
buens noch amigo un gtan saludo desd ecuador excelente video la pasta q le pusiste en los vastagos del condensador para q es imagino q es para q no pase la temperatura a los vastago
Whats your EDC leather pouch you have on your side. I've been looking for one.
Keep learning
Now we use crimp sleeves, brazing is done. In Germany that started 15 years ago, NO brazing, no soldering.
Do you prefer oxy acetylene or the b tank? With a torch welding background I always found oxy acetylene to be cleaner and much quicker.
Brazing with B tanks is for those who don't want to take the time to learn how to properly dial in their gases or aren't confident enough to use oxy/ac for brazing.
I brazed steel rule cutting dies (big cookie cutters under high mechanical pressure for fabric) and you're dead right about OA being preferable. I collect and rebuild torches and regs so I'm wallowing in full sets of "everything". I use turbo-style torches for soldering and heating small stuff but not near as often as my OA rigs.
Hey Zack I would recommend you to use a safety glasses just for any flame when you brazing.Thank you for your video
From the uv light ? What kind of glasses would you recommend?
@@hgn1832 .hey Zack this is safety glasses that I wear when I brazing…..
(Jackson safety 25671 Nemesis about $7.00 but safe your vision long run).Thanks for all your videos.
I buy it Amazon
very good vidio
i found once the pipe is just snug it is 18 compresses for a decent 90
What pressures do you have on oxygen acetylene torch?
How did you measure for the second bend?
How do you know if you can use your old copper or not what signs should you look for or should you replace the copper every time you replace both units
Only replace the copper if it is undersized or oversized for the new system. Other wise if it's the proper size flush it with Rx11 and your good to go.
I’ve never used one of those turbo torches. That’s what they’re called right? It seems like the flame is a lot bigger though. It makes it look like you can control the heat application better when you use oxyacetylene.