How to Solder Aluminum HVAC Coils | Step by Step Guide 🔥

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КОМЕНТАРІ: 57

@tanneruchytil9654 Місяць тому

Being a former welder I’d also recommend taking a wire brush or scotch brite and getting the brazing area clean. Makes for a stronger braze especially for aluminum brazes. Even though the flux may etch the aluminum I’ve had some fail and once I pre-cleaned the area they haven’t leaked since.

@Climaster Місяць тому

Zack is the best ! Showing how to use solderweld properly . This repairs are good for low budget customers and no issue if we can help customers out

@georgesummerlin1602 Місяць тому

Get a coil where the weld on the u-bend is compromised. It's never a hole. It's always a factory joint

@andrecontois8510 Місяць тому

Had one on a brand new carrier copper coil they even paint marked it for me to find it easier jerks

@trevorleger4839 Місяць тому

so much information and thank you!! i am just starting out in the hvac world and love all your videos to try and learn as much as i can!!

@donaldhendrix1878 Місяць тому

Thanks for doing these videos. I learn alot from you. I've only been at it here in West Tennessee for a couple of years now, so I need all the help I can get.

@MODOLLAZ21 25 днів тому

Love the informative video, I appreciate you burning a hole through the tube as if it was a mistake in the field, first compressor I had to swap, I burned a hole through the tube connecting a dryer, got it sealed up though luckily

@dgapp76 29 днів тому

I stopped repairing evap coils years ago. Leaks always return, without fail. Give me one of those old Carrier aluminum slant coils with compression connections l, now thats a bombproof coil. They gotta build some obsolescence into them nowadays to make more money.

@TheLastManlet 28 днів тому

Great video man, I’m in school and just got my esco brazing cert, can’t wait to start working and learning the trade.

@thesilentonevictor Місяць тому

Good job Zack

@TX-EddyHVAC Місяць тому

I've done this minus the flux. I didn't know i needed it, honestly. I just sanded the spot and used the torch set at a lower heat, and as far as i know, it's still holding a yr later.

@MrBen527 Місяць тому

Nice job! Aluminum is tricky.

@Salyers-Family-2004 Місяць тому

Interesting video. Thanks for your time.

@rgmatta3524 18 днів тому

Great video!

@HVACwithJB 26 днів тому

Nice work. These coils can be very tricky to repair. I do a lot of refrigeration work and we do aluminum to copper hot gas bypass valves

@johnathandye5244 Місяць тому

Replace the coil, these coils are junk in the first place. These keep us in business, along with aluminum micro channel coils as well. Good video though brother. You do good work. Been watching your channel from the beginning. Keep up the good work.

@OcRefrigeration Місяць тому

Yep , replace with a copper tube / aluminum fin coil. much more durable.

@actechchris3695 Місяць тому

Plus the aluminum coils are more susceptible to bacterial growth

@rv10flyer84 Місяць тому

Oh, you have to do is look at the price for aluminum scrap versus copper scrap and you’ll know the reason. Also look at the coefficient of expansion for copper versus aluminum and you’ll know the reason. Yes these aluminum coils are junk. If you want to make an aircraft, sure, but not a coil.

@raymondsvoboda4175 Місяць тому

That’s fine to replace a coil. Sometimes a coil is weeks out and if it’s a supermarket application, that’s weeks the customer can’t sell product in that case. Good to know how to do it.

@laythkawar8638 29 днів тому

@OcRefrigeration there not gonna make copper tube coils anymore it’s going to be all aluminum in a couple of years you won’t be able to buy them unless they’re overstock coils.

@jaywalp2564 Місяць тому

A professional would replace the coil. As a 40 plus year professional we've been through this aluminum junk years ago with carrier and hussman junk coils. There's a company in Texas that makes copper tube and fin replacement coils. Do what's right for the customer. ALSO I would like to see a pressure test when your finished.

@IceWhiteice22 27 днів тому

Sometimes coil ain’t available now with the supply chain issues. It has nothing to do with being a professional.

@Dang.sauce.. Місяць тому

good video

@chrismyvision7494 Місяць тому

I’ve always wanted to learn this to try and get customers by instead of waiting for a new coil doesn’t seem like anyone knows how to do this around here thx for the video !

@rv10flyer84 Місяць тому

That’s because coils don’t get holes in the outside of the u-bend. If it’s under warranty, replace the coil. I wouldn’t want a coil repaired by a new guy because that’s what all of us are right now.

@richardthomas1743 Місяць тому

HEY! Hello and thumbs UP!!

@michaelcorbett7680 Місяць тому

I had a few questions one being would you recommend using nitrogen while doing this. Along with that would you have to worry about the flux becoming a contaminant inside the system and could you use this same process on other parts of the coil where as a lot of the time I see leaks where the copper goes to aluminum. Forgive me if this sounds ignorant but this is very interesting to me

@SurfBrosHVAC 27 днів тому

I was just thinking of making a video on this. The first time I did this I had no resources available online and roasted a big hole and couldn't repair it

@mattluongo7763 Місяць тому

I believe the flux "etches" the aluminum.

@abagoftoes4108 Місяць тому

One question for you Zack. Does patching a large hole like that cause turbulence within the pipe which will cause another hole down the line? Great video as always.

@chrissipple1018 18 днів тому

It could cause a scouring action at that spot. usually scouring take place on return bends changing direction and a higher velocity in the area of the bends.

@zeph352 Місяць тому

I always shy away from aluminum but Zac makes it look very easy…hummm

@Mil0Fedaikin 28 днів тому

Good day. Why dosen`t aply more flux after you lay rod on hole , before working fill material to cover area? This will make better flow of filling material and prevent small leake due to oxidation aluminum on the coil itself.

@oldtimefarmboy617 27 днів тому

Aluminum that is not coated oxidizes and that oxidation need to be removed or any soldering or brazing will fail because it will be porous. The technical term for removing that layer of aluminum oxide is called ablating.

@nephtaliestrada569 21 день тому

Hey bro, I watched ur video for a while, and I'm a fan and a hvac tech. How do u know that dinging that repair is not inducing nocondenable into the coil. R u 100% positive, it's not?

@Paul-IE-Repairs Місяць тому

the flux removes the oxidation layer from aluminum so that the solder will flow over the joint

@dineshsachdeva9177 Місяць тому

You are good man champion 😂😂😂 no almunium coils used in our country only Cooper coils but in 1/2 years these coils damage cause of corrosion because r-32 & r-410a is not good for cooling coils 😢😢😢😢😢😢

@robertmaceweniii245 Місяць тому

Try a repair in microchannel an inch away from the header. Not the same as an end bell.

@dnell6854 Місяць тому

Which rods are you using?

@DerbyDogz Місяць тому

I believe he is using Solderweld Alloy Sol Aluminum Repair Rods & Alloy Sol Flux also from Solderweld.

@TheBushey Місяць тому

Hey show off the bag and goodies from the hvac awards

@ryangrant6089 27 днів тому

The only question I have. If you repair this leak. Where in the structural integrity of the pipe was weakened, to the point of failure in the coil bend. How can you possibly do this in the field, successfully guaranteeing the rest of the return bends. The customer doesn't know what failed, except the HVAC unit doesn't work again when the gas leaks out from the next Leak. Sometimes, Most times , people choose reliability, when they're informed properly of the situation at hand.

@ryangrant6089 27 днів тому

Because I don't want to be the HVAC company that only gets you up and running right now, for a year or so.

@samuelcollier3350 Місяць тому

Anyone got any idea what boots I should get? Starting HVAC soon!

@rv10flyer84 Місяць тому

All I can say is the boots that I’ve been buying for the last five years rarely last more than one year. Like everything else in the USA, junk.

@PublicEnemy04 28 днів тому

Chipping in here: Yep, just replace it. As someone said, unless it is a medical emergency or you work on the Refer side, it is at BEST a TEMPORARY fix, and the coil better be ordered and on the way, because you can 100% guarantee the customer that the issue will return. On a second note, if they are cheap or they “don’t want to spend too much money on it” and your company insists that you try to fix it, Make sure you write that on your Service Report. CYA guys. CYA.

@carlyleworkman1928 Місяць тому

👍🏿

@dineshsachdeva9177 Місяць тому

Champion why are you not use gas welding this torch flame is high damage your other U bands😮😮😮😮😮

@dineshsachdeva9177 Місяць тому

You can replace U bands if available 😅😅😅😅

@copefam7338 28 днів тому

So it’s a cold braze

@hediervarelamedina987 Місяць тому

The video is respectable but those who say why fix it are the ones who do not explore and say they are saving time and sometimes they do things just to do them and they do not solve anything, they only solve this in a comment that they have left for the gentleman in the video. Regarding the way to weld aluminum, personally, when you use a rod that contains flux, it is less complex to do the task. The Lucas Milhaupt 822 is a successful and efficient solution and when everything is prepared it is good to run the vacuum pump while welding instead of running nitrogen. I say this from experience. For the rest, the video is respectable.

@woodystokes1543 Місяць тому

Never 👎🏼 a hole always a u bend 😮

@copefam7338 28 днів тому

Do not solder the coil unless it’s a medical emergency. We as professionals have no business fixing a coil that needs replaced. That is doing a disservice to the customer. Unless it is a medical emergency for medical condition or age both young and old u til the coil comes in and gets replaced. Replace it!!!!!!!