The E-Book and Paperback at our Website: www.acservicetech.com/the-book The Paperback at Amazon: www.amazon.com/shop/acservicetech Support the Channel- www.patreon.com/acservicetech Tool List- www.amazon.com/shop/acservicetech For those that are looking for the tools used in the videos: (Linked Below) Yellow Jacket Flaring Tool - amzn.to/2OBxGlM Yellow Jacket Flaring Tool with Set Depth - amzn.to/2QIKsQH Yellow Jacket Torques Wrench - amzn.to/2NRR68Q Nylog - amzn.to/2MLJcch Ridgid Tubing Cutter - amzn.to/2DnjjR1 Wolverine Tube Reamer - amzn.to/2QGLyMV Nitrogen Regulator- amzn.to/2bXdR5f Uniweld NitroVue Flow Regulator- amzn.to/2GnsaAo Uniweld Nitrogen Flow Meter amzn.to/2brvoBg 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 Ameriflame Oxy Acetylene Torch Setup #1 &#2 Tip- amzn.to/2SRm3JF #2 Tip for Oxy Acetylene Torch- amzn.to/2SPDaeD Cap-N-Hook Tip for Oxy Acetylene Setup- amzn.to/2MbhpUk Appion Valve Core Removal Tool amzn.to/2uYr8WL RectorSeal Bubble Gas Leak Detector - amzn.to/2ckWACn 25 Valve Cores - amzn.to/2L37UJU 25 ¼” Brass Port Caps with rubber O-rings - amzn.to/2GIOdD2 Brass Valve Core Tool which holds 3 valve cores - amzn.to/2GFEbm2 Valve Core Torque Wrench - amzn.to/2GHiLoD Locking Cap Universal Lock/Unlock Tool - amzn.to/2GGAoVp Locking caps - amzn.to/2GFXZ8A Ratcheting Service Wrench amzn.to/2dGV4Nh Yellow Jacket Sealright 90 Coupler- amzn.to/2LsU1V7 Yellow Jacket 1pk Compact Ball Valve- amzn.to/2uXdF18 Yellow Jacket 3pk Compact Ball Valve- amzn.to/2AiKfQe Thumb Screw Valve Core Depressor with Backseat- amzn.to/2mR0sCL UEI DL479 Multimeter with temp sensor amzn.to/2jtsUbJ 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 Digital Refrigerant Scale amzn.to/2b9oXYl Ratcheting Service Wrench amzn.to/2dGV4Nh Accutrak VPE Ultrasonic Leak Detector amzn.to/2nFYKVe Accutrak VPE-GN Ultrasonic Leak Detector amzn.to/2Zy4IZP FieldpieceSMAN360 Digital Manifold Set amzn.to/2BdoaD4 FieldpieceSMAN460 Digital Manifold Set amzn.to/2nB4Fe6 Ultrasonic Leak Detector with Headphones- amzn.to/2B2cRO3 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 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 UEI DL389 Multimeter amzn.to/2xAdaJf 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 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

This is one of the most comprehensive discussions on the subject matter I have ever seen on UKposts. Well done fella for sure.

Great video, I broke the copper connector by not properly supporting it with a wrench while tightening it. The break was on the inside so I didn't see it until I released the refrigerant. What a bad day that was. Supporting the connection with a solid grip is very important.

Nagyon részletes és kiváló oktató anyag, iskolai oktatáson nem hallunk ilyesmit ezzel a részletességgel.... nagy köszönet!

I used to always put a thin coat of blue leak lock on my flare faces, even if I had a perfect flare. This was before nylog. I never had a leaky flare joint. One of the most critical parts of making a good flare, is properly preparing the tubing. After cutting, the burr needs to be removed completely. I filed the end of the pipe so it was perfect, with absolutely no burr or crush, like a tubing cutter will leave. I used a ridged eccentric flare tool with a clutch. It is also good to ad a drop of oil behind the flare nut, so the nut dose t grab and twist the pipe when your tightening down. I also used the right long length heavy duty refrigerant flare nuts.

You are providing a fantastic resource for the DIY crowd. And that is probably a lot of people today. I had a mini split installed by an HVAC contractor and it cost me $3500. I know they need to make a living but the new units on the market with the right tools and know how, I figure the total install cost drops to

You nailed it this time ;This procedure was my last alternative ,finally resolve the Issue after Hundreds of Dollars on my Transfusion line problems.

I’m not an HVAC person and never will be, but I find your videos great and I’ve learned a lot about the techniques used to fix issues. Thanks you so much.

I have a mini split install next week. This is a great refresher for my flare joints. Thank you!

Here in Arizona we are starting to install and cut in a lot of mini splits anywhere from single systems to multi tap high end systems. Very good video

Really appreciate you making this video, very professional and informative.

Great video! Thanks for your tip about using lubricant oil on the flaring head. Also to add to the comments on what tool various folks prefer, I use the Hilmor orbital flare tool and it makes a perfect flare for me every single time.

Brilliant, thank you!

They just threw me in as an installer with 2 months hvac experience. My first job 3 heads with a branch box. Thank you for the training Im not getting on the job

what a great video, can't get any better way of describing it.

Just watched you videos on flaring soft copper tubing. After cutting the tube, you used a pipe reaming tool to clean up the inside burr of the tube. I've tried that tool several times and as well as the other reaming tool with squiggly end , both leave small pieces of tubing inside the tube after use which must be tapped out of the tube prior to assembly. You talked about in your video! I experimented with the use of a pair of needle nose pliers (closed) to smooth out the inner edge of the cut, they seem to work significantly better and are just as quick too. In addition, the use the closed pliers doesn't leave copper shavings inside the tube. Twisting the closed needle nose pliers inside the tube easily burnishes off the burr (bends the little burr over) and leaves a clean inner tube as well. Try this out for yourself and see what you think !

there's nothing better when flaring to discover the nut laying off to the side instead of on the tubing, more so when it looks perfectly flared....

I learn so many things after every one of your videos!

Thank you very much for this video. I'm just here to learn about making a high quality seal with a copper pipe and this was very educational. I've spent forever on Google and it was really hard to find solid information. This type of connection is especially interesting, because it doesn't use a gasket, but it's not good for frequent disassembly. I guess the leak-rate is quite high too, because I'm not seeing this used in high-vacuum fittings.

I've been using the spin flare and spin swage for years. Perfect flares and perfect wages in less than 10 seconds every time once you get proficient at it. No need to do it any other way. No leaks no disappointments. However nylog is also a requirement, I like it better than plain oil. Even if you forget the nut, it is so simple to just cut it and make another flare it makes you smile that you can fix the mistake in seconds. Usually that happens because it's hot and been a long day.

The eccentric flare tool that the presenter likes is the ONLY way to go! We used those on industrial equipment with the 37.5 degree flare of heavy stainless tubing. Nothing will do a better job, and you'll very seldom find a split flare with that tool. Also, don't forget to set your torque wrench to its 'zero' setting after use to keep it in calibration. Great information Craig!!

Thanks for your time

I recently had a 3/8" suction line on a mini split leak at the flare joint on the condenser and I couldn't figure out why it was leaking. My flare was perfect every time, reamed and flared with my orbital flare tool multiple times, but it kept leaking. I finally changed the nut for the one that came with the unit, instead of the one that came with the line set, and tightened it down: PROBLEM SOLVED. There is absolutely a science behind how those flare joint nuts are constructed and using the correct nut to help make the seal perfect.

What a great video I actually have installed my own propane fridge and stove and was successful in making only three flares however this video is really fine tuning the process and I have learned a tremendous amount thank you good sir for an excellent top-notch 11 out of 10 video

Great info and very helpful for my mini split install. Thank you

That torque wrench set is a must have item at a decent price. They're necessary to tighten the electrical connections on steam humidifier tanks as well. Great lesson Craig!

Never had issue with factory flares or leaks, nylog seat it once lightly then a 1/4 turn loose then tighten up to specs. Pump it up with nitrogen to 250psi for quick leak testing with bubbles, if no bubbles then I’ll pump down if time is a issue, if I can I’ll leave gauges and nitrogen overnight to confirm pressure is on 🔒

this video is a masterclass

Really well detailed instructions. Enjoyed it. Thanks.

Hi! Great video and definitely a huge help for a beginner. I always use Nylog but I came across a problem. I could not figure out of your videos but isn't spinning the tube on the flare face a problem? When I torque down the nuts, the tubing tends to stick to the nut and twists compared to the standing flare seat. I tried to lube the back of the flared tubing, and the problem got better, but still intact.

Good work. Proper torque on the flare fittings is of major importance. I would add the torque wrenches made for this work are NOT designed for use in both directions. In the field techs can get crossed up and be forced to tighten a fitting from the backside of it i.e., standing behind the fitting where tightening the fitting now is in the CCW from their point of view. In this case the wrench must be used such that the MFR label is facing away from the operator. Intuitive to some, but not everyone. I have spoken with YellowJacket engineering about this and they indicated the instruction sheet would be revised to reflect this information.

I like your mini split videos. Excellent

Thanks Craig - can you identify a source for the good quality, heavy duty flare nuts? Lots of manufacturers out there but difficult to determine if they are good quality. Perhaps you should add it to your tool list. Thanks.

Very helpful and thorough

Thank you for the video. Can you do a video on how to correctly charge a mini split? Although I have purchased your book but it will be nice to see you show us in the video. Thank you

Excellent, informative instructional videos.

Very informative, Thank you.

Very good how-to, tools, problems, do's&don't's

Thanks for a early reply and well explained

Excellent video as always

Very informative video thanks 👍🏼

Good one bro. Helpful information especially the flareing tools. Thank you

Best video ever thanks 😊

Great video once again!!

VERY INFORMATIVE , THANK YOU

Can ester automotive oil used in r134a be used in place of poe oil for this connection. I have to wait a couple of days to get the blue sealant and would like to use what i have if at all possible, thanks

Awesome video, great job. Greetings from Argentina

Thanks for another great video, I've sure learned a lot from you. Why don't I see installers checking the high side on mini's only the 1/4" blue side?

Another great video Craig. Went to check pressure in my mini split unit. When I hooked up gauge to service port I got a really low reading of only 25psi. without the unit running. When I turn the unit on, in cooling mode, line pressure pressure quickly decreased into the vacuum side of gauge. I turned unit off. Pressure quickly rose back up to 25psi and remained stable. Is there a Leak or a clog? or just really low on 410A?? Im leaning towards a clog. And how that would be troubleshooted. Thoughts? Thanks,The other Craig

Thank you for a great video

Well done

I got your book and it is very good!

Thanks to you, now i know to do it right. Thanks a lot. 👍👍🙂

Good information! Thank you.

Excellent video thanks!

Excellent video!!

Really appreciable informative video.

Amazing.

Thank you so much sir

Thank you.

Those flare connections were always an issue...... great video !

great vid

Great video. However a reamer or reaming tool is a tool used to enlarge a drilled hole to produce an accurate smooth finish. The tool you are using is a deburring tool.

I learn something new every time I watch one of your videos. Now, what is the sweet spot on for the 410 pressure, 120 psi?

What is POE oil? Are you referring to Polyol Ester Oil?

Freaking great video. Thanks.

Hi mate what do you think of blackmax flaring kit

If no-brazing fitting which can be used for connecting service valve is released, do you have a intention of purchasing them? how much is proper to purchase.

I love this video

I love this channel ❤❤❤❤❤❤

Can I use a tiny bit of PAG 46 oil to lubricate the flare when tightening for a heat hump R410A system?

I seen some instructions that came with pioneer mini splits that say not to put oil on before torqueing the flare nut. Because it may get the nut get to tight.

Nylog isn't available in Europe. Is there any replacement oil for applying on the flares before tightening?

Just had Mini Split systems put in and they are not performing - leaking refrigerant. This was very helpful . I can now tell the installer where to look. He seemed baffled.

I read something interesting regarding Torque Wrench's if you apply lube to the threads you can over torque the bolts a lot of car manufacturers give dry thread specks!

Greetings for you from Iraq 🤗

What size torque wrench am I gonna need for the line-set compression fittings that have a 1/4" and 1/2" refrigerant lines? AND, Metric or SAE?

I worked on oil burner Long Island ny, did away with compression, went with only flares, always thought a/c techs always brazed their copper lines

Good tropic ❤❤❤❤❤

احسنت عمل رائع

How about oil on the BACKSIDE of the flare to reduce fretting and get a truer compression of the joint.

Thanks for the video, learnt a lot from your videos. Once you release the refrigerant into the line and spray the joints and there's no bubbles, does that mean there is 100% no leaks?

What about pre flared that came with the mimi split? I got a Pioneer with line set included

Nice video Like 👍

Great Stuff! I followed your guides for pressure testing and I used a fieldpiece digital manifold gauge and held nitrogen pressure great for 24 hours. No leaks or bubbles with leak detector. However, when I vacuumed I can get down to 300 microns on my 3/8" line but once I valve it off with my Appion core remover tool it starts to rise. I'm so frustrated. I made meticulous flare joints with an eccentric tool and used Nylog on the cone, coated the front and back of the flare and torqued down with a digital wrench. I also checked the core remover to make sure it wasn't the cause of the leak. Any advice? Thanks.

Ticked and subscribed with the greatest respect, but really not my area. There really is a world of difference that separates "just doing the job", from doing the job knowing "what you're doing;" and why you're doing it that way". "Ouch", simple techniques that don't work; made wonderfully and invisibly sophisticated so that they actually do work........ :)

Can I flare it to compressor lines, or I have to braze the compressor connections?

I have a new mini split system. I was going to just pump it down without doing a pressure test. Would passing a vacuum test imply leakless joints? Or does the flare joint operate differently under pressure.

What are your thoughts on the SPIN Flaring drill bits? I've been using them for the past couple months. So far no call backs but only time will tell of its reliability. Thank you for your awesome videos.

Great video what’s the part number to buy the flaring tool

Sir very interested video iam a c technician from pakistan sir I love u

Imo using probes is so much easier. It's more accurate, and the best part, I monitor the entire time I pressure test along with a temp probes on the suction line. That way, any pressure changes can be accounted for. The testo app can show in table or graph form. And they can detect to a tenth of a psi vs around 5 psi on the low side guage. Same with an accutools micron gauge. I got 46 microns and it decayed to 72 in ten minutes. I'd say that's leak free enough.

Hi what is the difference between nylog and leak lock ? Can I use leak lock same way ?

Do you have a link to the torque wrench?

Interesting video! I just had a flare replaced due to leaking. Would it be fair to say that any issue with a flare is due to poor installation?

Do people use the flare,tight fittings that come with the unit?purple things?

I have two questions: 1.your book mentioned method when flare nut is tightened and then loose and retighten again with added force. If installation manual shows 2 values like this: 13.0- 18.0 ft-lbs does it mean 13 is a first and then 18 ? - My line set is 1/4 and 3/8 pipes and I believe I used the same (lower) torque for both of them on indoor unit, so basically 3/8 in under-torqued. I already insulated connections and mounted the unit when I realized that. Is it OK to leave it as is or I'm setting myself for leak? Thanks a lot!

Good

Hi, How much Nm for conecting 3/8" pipe ?

I have been in field from last 3 years, now I decide to get apprentice, sir, can you suggest a right course for my betterment, thank you