Brazing HVAC Line Set to Service Valves! Full Procedure!

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I show how to Braze Copper Line Set into Service Valves while Flowing Nitrogen to Avoid Oxidation. I Explain and Show this Whole Process Step by Step. I use a 15% Silver Braze Rod and an Air Acetylene Torch Setup. Supervision is needed by a licensed HVACR Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.
Tools Used In The Video
UEI DL479 Multimeter With Temp Sensor amzn.to/2jtsUbJ
Magnet Jumpers- amzn.to/2PyKPQZ
Alligator Jumpers- amzn.to/2PxqJXn
Air Acetylene Torch setup - amzn.to/2aQalsb
15% Silver Brazing Rods - amzn.to/2gVLyLc
Uniweld Cap-N-Hook and #2 Tip Oxy Acetylene Torch Setup - amzn.to/2STp3Fe
Uniweld Oxy Acetylene Torch Setup #1 &#2 Tip - amzn.to/3WZaPmN
#2 Tip for Oxy Acetylene Torch - amzn.to/2SPDaeD
Cap-N-Hook Tip for Oxy Acetylene Setup - amzn.to/2MbhpUk
40cu B Tank to 10cu MC Tank Acetylene Tank Fitting - amzn.to/2GxZZPi
Nitrogen Regulator - amzn.to/2bXdR5f
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Bernzomatic Trigger Start Lighter Propane/Mapp Gas - amzn.to/2vit0cv
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Flint Spark Ignitor - amzn.to/2L3P2u9
Stay Brite #8 Silver Bearing Solder and Flux - amzn.to/2XIDJsY
Aluminum Braze Rods - amzn.to/2IGNMuW
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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#hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #lineset #brazing #braze #copper #tubing #refrigerant
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6 июл 2024

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@acservicetechchannel 5 лет назад

My Service and Procedure Book- www.acservicetech.com/the-book Tool List- www.amazon.com/shop/acservicetech Support the Channel- www.patreon.com/acservicetech For those that are looking for the tools used in the videos: (Linked Below) Air Acetylene Torch Setup- amzn.to/2aQalsb 15% Silver Brazing Rods- amzn.to/2gVLyLc Nitrogen Regulator- amzn.to/2bXdR5f Nitrogen Flow Meter- amzn.to/2brvoBg NitroVue Flow Reg- amzn.to/2MiulYv Ameriflame Oxy Acetylene Torch Setup- amzn.to/2SRm3JF #2 Tip for Oxy Acetylene Torch- amzn.to/2SPDaeD Cap-N-Hook Tip for Oxy Acetylene- amzn.to/2MbhpUk Manual Copper Tube Swage/Expander- amzn.to/2WRPa1M Uniweld Hydraulic Swaging Tool- amzn.to/2MlrI8m Uniweld Swage and Flare Kit- amzn.to/2T55jyn Ultrasonic Leak Detector- amzn.to/2Lw4Zpr Appion Valve Core Removal Tool- amzn.to/2uYr8WL Fieldpiece MR45 Recovery Machine- amzn.to/2xAOpN6 RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn Pack of 25 C&D valve cores- amzn.to/2J1lurm C&D Valve Core Wrench, Container, and 3 valve cores- amzn.to/2EVGkps Filter drier for Recovery Machine- amzn.to/2veVV3m Here is the link to the Yellow Jacket 1/4" by 1/4" heavy duty hose straight- amzn.to/2umtcod Blue Vapor Yellow Jacket Gauge- amzn.to/2Ju7pan Red Liquid Yellow Jacket Gauge- amzn.to/2sSFmGH Quick Coupler for the Gauges- amzn.to/2sTk8Ze JB Test Gauge High Side- amzn.to/2ruQb0l JB Test Gauge Low Side- amzn.to/2qR0utM UEI DL479 Multimeter with temp sensor amzn.to/2jtsUbJ Magnet Jumpers- amzn.to/2PyKPQZ Alligator Jumpers- amzn.to/2PxqJXn Fieldpiece ST4 Dual Temp Meter amzn.to/2wc1ME3 Fieldpiece Bead K Type Temp Sensor amzn.to/2DBwKfs Fieldpiece Wet Bulb Temp Sensor amzn.to/2RRI7Tw Fieldpiece TC24 Temp Clamp amzn.to/2qHLyjZ Yellow Jacket Refrigerant Gauge Set amzn.to/2aenwTq Refrigerant hoses with valves amzn.to/2aBumVI Yellow Jacket Gauge set & hoses amzn.to/2vLVkV9 Yellow Jacket 4 Port Manifold w Hoses amzn.to/2BkuGIq FieldpieceSMAN360 Digital Manifold Set amzn.to/2BdoaD4 FieldpieceSMAN460 Digital Manifold Set amzn.to/2nB4Fe6 Compact Ball Valve for Refrigerant Hose amzn.to/2KUisW8 QuickDisconnect 90 for refrigerant hose amzn.to/2MMtVcg JB 6 CFM Vacuum Pump amzn.to/2nqbvo8 Appion Blue 3/8" to 1/4" Vacuum Hose amzn.to/2uYlVyc Appion Red 3/8" to 1/4" Vacuum Hose amzn.to/2uYg6Ro Appion Valve Core Removal Tool amzn.to/2uYr8WL Yellow Jacket 1/4" by 1/4" hose amzn.to/2umtcod CPS Vacuum Micron Gauge amzn.to/2v1nM3O Supco Vacuum Micron Gauge amzn.to/2v1JRiA RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn UEI DL389 Multimeter amzn.to/2xAdaJf Other tool links can be found in the video description section. Shop through Amazon! Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from all purchases after clicking through. Prices are the same as normal- www.amazon.com/shop/acservicetech

@rw3880 5 лет назад

You have a error in your book. On page 12 fig 2-2. In the legend for dark red it says high pressure, low temperature. It should say high pressure, high temperature. Because P and T are tied together. If one goes up the other will follow.

@gscarpentryhandyman3993 5 лет назад

Could you please provide amazon link for a yellow hose you use for running nitrogen in this video? Thank you.

@rumulussmaraj8044 11 месяцев назад

All the way from Trinidad and Tobago 🇹🇹 great lectures

@user-ng4dx1sv4s 5 лет назад

Craig , you have the best HVAC channel on RU-vid and we are so fortunate to learn from you . Thank you

@acservicetechchannel 5 лет назад

I am glad to help Thomas, thank you very much!

@moeselec 4 года назад

Yes sir!

@moeselec 4 года назад

You are right. The best hvac channel!

@nicksucapani5927 4 года назад

Just started an hvacr program a few weeks ago this is a godsend

@iGOTnEYEonYOU 2 года назад

I'm not even an hvac tech but I love watching your videos! They are very educational.

@acservicetechchannel 2 года назад

Glad you like them!

@tokomac7728 Год назад

@@acservicetechchannel Exelent

@camilo8cheryl 4 года назад

Great videos.. not been practicing my hvac skills for Over 3 years..different job in our company,, now I'm back at it again..been rusty for 3 years Doing non hvac work.great to see this videos very good content..

@geraldvaldez6036 2 года назад

As always a great Teacher, Mr. Craig! I am a USN retired HVAC tech and still learning day in and day out! Thanks

@acservicetechchannel 2 года назад

That is awesome!

@Socialsl 8 месяцев назад

I've watched your Videos for a few years Craig. Thanks for boosting my confidence, and showing all of us how it's done. I wish I had a supervisor like you when I was still an apprentice!

@krishuntzeroable Год назад

New HVAC installer starting Monday. Been learning alot from your channel, thank you.

@billcat1840 6 месяцев назад

Hope the job is going well for you 😊

@adammilne3540 2 года назад

Best tutorial yet of correct brazing procedure.

@dannyl2598 2 года назад

Thank you. I appreciate all of the little details that you make sure are known, as opposed to assuming that the person watching already knows that.

@acservicetechchannel 2 года назад

Glad it was helpful!

@deanmartin1966 5 лет назад

As always, great video, great teacher. Thanks for sharing.

@acservicetechchannel 5 лет назад

Thanks a lot Deanmartin1966!

@topprotips5250 5 лет назад

AC Service Tech LLC hey I really find your videos so informing and a lot of info . I’m just starting out in the field and this question is different from this video but how do I know what pressure is good or bad or undercharged or overcharged ? When I hook up my gauges on the system and get the reading pressures how do I find the information ??

@drp930 4 года назад

Very well explained. True professional. You are helping apprentices become HVAC journeymen. Every profession needs journeymen professionals like you to show correct methods of your craft. It's no secret that it takes years of experience to do what you do so well and seamlessly. Thank you.

@acservicetechchannel 4 года назад

Thank you very much and check out our articles and quick tips over at www.acservicetech.com thanks I appreciate your comment!

@derekjackson3990 6 месяцев назад

It’s embarrassing how few hvac companies actually braze with nitro. Thanks for teaching the correct way.

@jimburgess9205 29 дней назад

Great tutorial. Thanks for giving the Turbo Torch some love.

@Samlol23_drrich 5 лет назад

And this, ladies and gentleman, is why your hvac installer deserves every penny they charge. Intricate procedure which when done well as shown in this video, will last many, many years. Very well done. Thanks for posting

@acservicetechchannel 5 лет назад

Thanks a lot Samlol23! Well said!

@Bob-cx4ze 7 дней назад

Don't assume that all are cut from the same cloth. That's a mistake no matter who the audience is.

@Samlol23_drrich 7 дней назад

@Bob-cx4ze I said "when done well as shown in this video" there are thieves in every field. From car mechanics to physicians. Just gotta find the good/honest ones and stay with them.

@todossantosmusic9070 2 года назад

Great vid! I recommend placing a wet rag or piece of sheet metal over the wall exposed corner of the plastic equipment pad. Your skill level negates the need but anyone watching the video is probably going to scorch it with the torch or drop a hot solder ball onto it. Also I found that old socks work best as rags as they really hold the water well.

@acestu 5 лет назад

Thank you Craig, Top stuff as usual...

@acservicetechchannel 5 лет назад

Glad to help acestu!

@JoseMartinez-bi6gr 3 года назад

Thank you for calling it a valve core, i see too many people posting calling it a stem valve.

@bennyandthecats1303 3 года назад

My teacher kept saying stem valve and made it mad confusing for us newbies.

@rodgray4459 5 лет назад

Hey thanks for taking time to teach us,,,,,,,GREAT JOB

@acservicetechchannel 5 лет назад

Thanks a lot Rod!

@ejohnfall 5 лет назад

Thank you our best teacher

@acservicetechchannel 5 лет назад

Thanks a lot ejohnfall!

@chriscermak3188 5 лет назад

Great video, keep them coming

@acservicetechchannel 5 лет назад

Thanks Chris, will do!

@yettielusive3370 3 года назад

This is a really great video , great explanations thank you very much

@winstonbuzon 4 года назад

Hello, Craig! Just have to say I'm learning a lot from your videos & techniques! I've been in the construction industry for quite awhile, and sheetmetal worker for the past few years. Just learned some layout of hard copper trunk lines, y-branches, etc. I have done some brazing, too. But thanks to your videos, I'm slowly but surely refining my technique. Keep up the videos! 😁👍

@acservicetechchannel 4 года назад

Glad to help Winston!

@markcavelli9087 3 года назад

Best teacher. Thank you.

@acservicetechchannel 3 года назад

Wow, thank you!

@786otto 3 года назад

Pipe out off ac unit should be ad least 4-6 inches long after the valve. Lots of engineers designing things so they break down just after the warranty expires. Good video.

@pastornoesolito7656 Год назад

Very nice job we really appreciate that explanation

@trevorhvac6799 5 лет назад

just so you know your doing an awesome job. all my new guys I refer them to do some homework and to research your videos. you have a good way of explaining things that makes it easy for new comers to learn the trade and learn it right. thanks for all that you do!

@trevorhvac6799 5 лет назад

how do you like the fieldpiece wireless probes. looking to switch from testo ro fieldpiece. just wondering your thoughts

@acservicetechchannel 5 лет назад

Thanks a lot Tre L. I will have a refrigerant handling book coming out soon with all the procedures I use in a step by step format and pics. I think Testo and Fieldpiece are on the same plain. Fieldpiece has more target superheat capability with their tools though, thanks

@bigant8231 4 года назад

Thanks for the advice👍

@acservicetechchannel 4 года назад

Glad to help!

@gene-khvacr 5 лет назад

Great demo 👍👍

@acservicetechchannel 5 лет назад

Thanks a lot GeneK HVACR!

@reginaldsotero 5 лет назад

This is GREAT!

@acservicetechchannel 5 лет назад

Thanks ray S!

@notanewbie1718 5 лет назад

Nice demo.

@acservicetechchannel 5 лет назад

Thanks a lot not a newbie!

@howtodoitdude1662 4 года назад

Informative video, thanks! Why are there thumbs down for this video?

@earthisheart6797 5 лет назад

Thank you. You're awesome.

@acservicetechchannel 5 лет назад

Thanks a lot Earth is hEart!

@WillianPortela 5 лет назад

Perfect procedure! You won one more subscribe!

@acservicetechchannel 5 лет назад

Thanks William!

@Angelo-qz3qj 5 лет назад

Great video. Thank you

@acservicetechchannel 4 года назад

Thanks Angelo!

@mannmadesbc 3 года назад

Very thankful for the video!

@acservicetechchannel 3 года назад

Glad it was helpful!

@BigMacheteBM 4 года назад

Hi, you've been very helpful to me in the past, I thank you for that, i have just a quick question, what do you think about UN1077 Propylene as an Acetylene substitute? i'm asking that, cause that is what i have got to perform the brazing on my 5/8 and 3/8 copper ac lines. Thanks!!

@fishlifeknives7429 2 года назад

Brah, I give you props for posting even though your nitro suppose to be on suction side going in the direction of operation. Then you braze starting at suction on the outdoor, suction indoor, filter dryer indoor, and your last braze should liquid line at outdoor. But your brazes are legit yo!!👍

@ryanandtracie3929 2 года назад

Great vid! Thanks!

@alexandergamernik.nvsdigit7658 3 года назад

Nice Video, I Suggest you to try Induction Heater Instead, no flame needed. Both tubes heated 10-15 seconds with stable and constant temperature.

@rodgraff1782 Год назад

Craig, I always pre purged until the flow would suffocate a match flame. That way I knew that there was no more oxygen in the line. Glad you use a flow meter instead of just a regulator. I like that you are using gloves. Good video.

@balint133 10 месяцев назад

The match flame is a really good idea I'll give it a try. Thanks

@vieuxacadian9455 3 года назад

I like to use a new type reusable heat trap compound . Have used playdough back in the early 80's before .

@donnierobertson3088 3 года назад

Nice job and video

@whatdidujustsay2094 Год назад

Good job!

@OthmanAlikhan Год назад

Thanks for the video =)

@nicholasradak9605 3 года назад

Excellent video ! You are aa pro !

@acservicetechchannel 3 года назад

Thanks a lot!

@drummerdem50 5 лет назад

thanks for this excellent video

@acservicetechchannel 5 лет назад

Thanks a lot Drummer!

@ros879 3 года назад

Hi Craig, do you not need to braze with silver for the brass to copper connection? Thanks

@DeepakGupta-cz4rh 5 лет назад

Thanks for making this video

@acservicetechchannel 5 лет назад

Thanks Deepak!

@richarddemaine2193 3 года назад

I am a subscriber and have bought your books, they are very good and thanks for all your help. I have a question about flushing out a line set that goes up the back of the building about 5 stories, there are two traps installed, what would you recommend on how to flush them out if we cannot reach them. I am converting an R22 system to an R410A, I tried to blow nitrogen thru them but really didn't get anything out of them. I am afraid the traps might be filled with R22, looking forward to your comments. I couldn't find any articles about this on your website.

@La2venida 3 года назад

What tank do you use for the turbo torch and how close can you go with the tip of the torch in where it's still safe

@richarddiaz8248 2 года назад

How do you braze on the evaporator side please thank you for your time and experience

@douglieberman6406 2 года назад

Thanks!

@pnp8849 3 года назад

Thanks to your videos I'm able to changed out compressor and got everything running again. As appreciation, I just bought your e-book and quick cards to further the learning. My quick ?, not sure if you've time to answer. I downloaded e.book.epub file and adobe reader file at the end of checkout. Now the adobe said "error, unable to open your e.book.epub file". Did I download the right e-book file or will I get different file in the mail?

@rendel2358 3 года назад

when do you use acetylene and oxygen when brazing?

@mikekin5806 3 года назад

Ideally you want to braze from the bottom up. Start at the 6 o'clock position and braze in a clockwise direction until you reach the 12 o'clock position at which point you go back to the 6 o'clock position and braze counterclockwise back up to 12 o'clock position. Once completed, be sure to cap your joint and you should never have to worry about a leak from that connection.

@landonj16 2 года назад

what do you mean cap?

@mikekin5806 2 года назад

@@landonj16 cap as in cap off the joint with a second covering bead of brazing allow. Basically a second pass over the first one to ensure the joint has no leaks. You should still confirm the system is leak free after you're done brazing by doing a standing pressure test with dry nitrogen.

@lex6794 2 года назад

@@mikekin5806 Hey buddy I'm a new HVAC Tech. You seem to know your stuff, quick question. You can run nitrogen as you're brazing, and you need a outlet somewhere for the nitrogen to leave the system, so you don't build up nitrogen pressure is that correct?

@mikekin5806 2 года назад

@@lex6794 correct. Typically one would use a Nitrogen regulator with a flow meter to allow for a gentle flow of Nitrogen to pass through the system while brazing.

@lex6794 2 года назад

@@mikekin5806 Thank you Sir! Greatly Appreciated!

@matthuss1914 5 лет назад

I always use nitrogen to braze. It amazes me how many technicians refuse to use it. I always hear them say “ I never used it back in the day and I don’t now” or “ that takes too much time”

@acservicetechchannel 5 лет назад

Yeah it really doesn't take much more time to do it correctly with nitrogen, thanks a lot Matt!

@bufallobiff 4 года назад

Never had a problem not using it for 25 years........

@luisaleman4008 4 года назад

Is all bs to use nitrogen, I have done thousands of systems and have never use it don't have time for that bull crap

@thomasbisset4544 4 года назад

What is the advantage/reason for using nitrogen?

@Mentorcase 4 года назад

Some people are terrible at welding and really burn the crap out of the pipe trying to get the weld to take, usually using bad welding wire, if the outside of the pipe is nasty looking the inside will look the same, the welds he just did looked fine with a minimum amount of heat.

@BobL56 5 лет назад

Thank you!

@acservicetechchannel 5 лет назад

Thanks Bob!

@samersarah957 2 года назад

Aswem video with good illustration. What you mean by tank (b) and when you’re brazing the service valve must be in back seated it separates the outside condenser and compressor is that correct? Thanks

@sarbbhamra6758 2 года назад

Hello, thank you for great video. I have learned more from your video then the school I went to. Can you please explain the setting on the nitrogen tank if it is not too much trouble. Thank you 🙏 so much.

@iankidd6654 2 года назад

Great Video. I was interested to see you did not need to use any flux to braze (we call it silver solder) Copper to brass. My understanding is when you "silver solder" Copper to Coper no flux is required. However, when you Silver solder copper to brass flux is required. The reason for this is I normally do silver soldering for plumbing installations and the silver content is only 2 to 5%

@ariel1119 2 года назад

Thanks for this video. My builder contractor seal the line-set with aluminum, I’m wondering is it a standard procedure to do so? I’m asking because my attic line set is having severe leak , it will cost me more than $6k to repair or change the whole system for 12K. I really need some advice. Thanks to any inputs.

@acrepairnearme 5 лет назад

Superb video. Whole procedure! If you can make the video of how you replacing the reversing value that would be great! Thank you!)))) because of your video I know what I do in the field as a tech.

@acservicetechchannel 5 лет назад

Thanks a lot Tapch MC, I appreciate that and I do remember, thanks!

@acservicetechchannel 5 лет назад

Hey Tapch MC, would you be interested and willing to reply with a quick comment that is one to two sentences with your name that I could use as a testimonial on the new site I will be publishing at acservicetech.com ? No hard feelings if you are unwilling! I appreciate you being a patron!

@hvacguy542 3 года назад

Awesome video A+ as usual. What do you think about stay brite 8

@tuta6820 5 лет назад

I was able to place 5th in the state for Skills USA. I owe it all to your classes

@acservicetechchannel 5 лет назад

Yes!!! Thats awesome! Congratulations! I was wondering!

@acservicetechchannel 5 лет назад

You have a fantastic memory and desire! Thanks for letting me know!

@tuta6820 5 лет назад

@@acservicetechchannel I was able to earn tools for myself and everyone else in our class

@acservicetechchannel 5 лет назад

That's awesome Chris! Congratulations! Who awarded the tools?

@tuta6820 5 лет назад

@@acservicetechchannel Klein Tools is donating them

@tntheatingandairllc 4 года назад

Great video very helpful keep 👍👍

@acservicetechchannel 4 года назад

Thanks Terry!

@jw261989 4 года назад

Great video 👍

@acservicetechchannel 4 года назад

Thanks for the visit

@dallassoccerkidd 3 года назад

Are those caps you put on and off supposed to be tight on there after installation?

@mb4lunch 5 лет назад

I spray gel heat sink and a wet rag... Melted the first valve I did when I was green... LoL.

@deloct 5 лет назад

Thank you. Another great video. Alway learn something new in every video you share. Can the small acetylene that comes on the oxy/acetylene kit come with be use instead of the B tank?

@acservicetechchannel 5 лет назад

Yes absolutely, I have the small brass adapter needed linked right between the air acetylene setup and the oxy-acetylene setup at amazon.com/shop/acservicetech, thanks! The connection on the side of the 40cu B tank is larger than the 10cu MC tank, thanks Octavio!

@toemblem 2 года назад

Yes, I use a MC tank. You can buy a regulator that fits or an adapter to utilize your B tank set-up. I did the later, so that I could always go back if needed.

@jamescollins8148 11 месяцев назад

Great video! What is your feeling on using Staybrite? Rumor has it, just as good as brazing and no need for running nitrogen. ???

@cafenightster4548 3 года назад

Funny seeing all this, it seems so complicated when you hear it all. Been brazing condensers and evap coils for atleast 5 yrs. I prefer spraying Cool Gel into the king valves since they're brass and won't rust. I hate using turbo torches, they are soo loud and slow, I'm always afraid of them heating the king valve up too much. I think the hardest thing to learn is aluminum to copper brazing, I went thru 2 feet of aluminum trying to get a decent connection.

@josephkwon9034 Год назад

whole suction line have to be insulated or just outside?

@themrmoy40 4 года назад

for a 5 ton how big should the liquid line be ??

@codyhignite2522 Год назад

Do you keep the shader valve depresser in the hose?

@MrAlittle5150 4 года назад

You did to good of a job, I can't find no funny comments on how you did it wrong.

@acservicetechchannel 4 года назад

Thank you!

@konstantinusstoyanov9749 4 года назад

I am not HVAC guy but looks very interesting

@IndustMachWerksofTX 2 года назад

Can I purge with another inert gas like 75/25 or 100% argon?

@titurevvlog Год назад

Thank you...Godbless ...from...😊🇵🇭

@erickvaliente8158 Год назад

How can I find a description that you mention?

@JohnQPublic345 Год назад

Ever try mapp gas with a turbotorch head to braze the lineset?

@pastornoesolito7656 Год назад

Hello Sir. The nitrogen thank can be yellow color?

@orlandezpierre2461 4 года назад

Recovery all refrigerant then purge line with nitrogen?

@timhill1373 2 года назад

Is it better to braze with just acetylene or oxygen and acetylene?

@La2venida 3 года назад

How close do you get with the tip to the line?

@Steve-oh9tu 4 года назад

The best!

@acservicetechchannel 4 года назад

Thank you for watching

@martindeloach 5 лет назад

You make it look easy I was in school learning just that, in my very little experience I do notice if you try cooling it to quickly you'll break the connection, should wait at least 15-30 seconds before ragging it, at least that is what I did in order to get my pass the instructor and pressure test, lol

@acservicetechchannel 5 лет назад

Hey Martin, no the connection will not have pin holes or crack when cooling it down. You only need to make sure it is solid which is just a few seconds usually with the changing of color. The teacher may have been erring on the side of caution but the problem is you are allowing the valve to stay too hot too long. We need to protect the moving valves and txv's when brazing, that is why we cool it fast, thanks!

@toemblem 2 года назад

Did you braze the bottom of that suction line after you turned off the camera?

@kennethcarroll5420 4 года назад

Can you take the plunger out of service valve for Goodman heat pump.. the service valve that doesn’t have snap ring

@acservicetechchannel 4 года назад

No they just get replaced, thanks!

@zueszues3178 4 года назад

Can u braze with mapp gas ?

@mytravelvlog4593 2 года назад

beautiful

@acservicetechchannel 2 года назад

Many many thanks

@battime5418 2 года назад

Craig, I noticed you don't use flux. Probably because of possible contamination with the refridgerant. Do you think it is wrong (or over kill) to warm up the 15% silver rod then dip it into powered flux before brazing? I don't want to reinvent the wheel, just tap on your experience. Some food for thought! You get some hits on a video install of an "Air Handler, with duct refit." Thank you for your time.Enjoy your informative videos. Ron

@andyo9279 4 года назад

Yo Craig, nice video bro...just want to ask you something, when you're brazing & the flame turns green, the copper is now cherry red...and ready for brazing the copper to the other copper joint, at this point where about & how far back do you hold the turbo torch when you're applying the solder rod? I'm a bit rusty with my brazing & turn not to get a smooth enough braze? I've been told to hold the flame slightly back above the rod once the rod is starting to melt & I should then flick the rod around the heated copper joint...but sometimes I get a little confused as I have not brazed in a while but I need to improve as it's a serious skill....any tips bro? I'm from London UK...peace!

@acservicetechchannel 4 года назад

No just heat the copper tube until the temp of the copper melts the rod. Just test the copper by quickly touching the rod to the copper until it is melting. You would want to wipe that oil out of the joint ahead of time and clean the joint to avoid that green color and to get a clean joint. My best advise it to practice brazing joints yourself off the clock in a safe location with. Some scrap copper pieces, thanks!

@cristianrozadilla2783 5 лет назад

Muy bien esplucado, excelente 👍👍👌

@acservicetechchannel 5 лет назад

Thanks a lot Frigoazul!

@cristianrozadilla2783 5 лет назад

Si puedes, suscríbete a mi canal

@ashrafkarjiker6888 Год назад

Can you use flux when brazing

@fromanabe8639 5 лет назад

Wow! Seventeen "We're gonna go ahead ..." 's in a ten minute video. I think that may be an all-time record.

@charliethewanderer6872 3 года назад

Thanks, I like the video. The very first step before brazing is to remove all refrigerant from the entire system even before flowing nitrogen, LOL

@Abraham117A 2 года назад

The lines were never charged

@SuperMudMuppet 4 года назад

What size torch tip was that? Thank you for the awesome videos.

@Swimfinz 3 года назад

He said size 11

@andresmurillo5117 5 лет назад

Piston or TXV brazing the same way, or different way?

@acservicetechchannel 5 лет назад

You can flow nitrogen through either usually on ac systems. Make sure to keep the bulb cool or remove the bulb from the vapor line while brazing. I have a video on that in the brazing playlist, thanks!

@abbe6305 4 месяца назад

when i braze in a new compressor, scroll copeland, i need to have nitrogen, its it correct that i put nitro on low side and blow out on the high side? Becuse the compressor have a rewerse seal on high side in compressor and can damage the seal?. correct?