Two HVACR Line Set Cleaning Methods to Reuse Copper Refrigerant Tubing!

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In this HVAC Training Video, I Show How to Use the hilmor Lineset Cleaner and Pro Flush Chemical Injection Tool to Clean Empty Existing Refrigerant Tubing. I Also do Some Tests on Kinked Line Set and Non-beburred Tubing as Well. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
The Pro-Flush Kit and hilmor lineset cleaner can be found at the following distributors:
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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 #hilmor #chemical #injection #refrigerant #tubing #kinked #deburred #deburring #copper #coppertube
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1 окт 2024

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Комментарии : 170

@gregmattes8053 2 года назад

13:38 bubbles in oil doesn’t mean it’s acidic, it simply means it is saturated with refrigerant. Oil needs to be tested with an acid test kit to determine if it is acidic.

@HVACRTECH-83 9 месяцев назад

This has been my experience as well. I always do an acid test to determine.

@timothy5977 Год назад

I know a lot of techs/installers watch these videos. But i wish the owners of these companies would watch them and understand how much time and work doing this stuff right takes. And the tool cost !!

@YoMateo. 2 года назад

Whoever's reading this, i pray that whatever you're going through gets better and whatever you're struggling with or worrying about is going to be fine and that everyone has a fantastic day! Amen

@ryanmalin 2 года назад

toxic

@christopherhaak9824 Месяц назад

I just used the solvent flush method. Worked great. Not really necessary to get the high buck solvent flush. A mixture of lacquer thinner and methylene chloride works great and readily available solvents. Make sure you blow plenty of N2 or dry air through the line to both flush and dry it out afterwards. If not, you will be vacuuming up a lot of solvent when you go to evacuate.

@tinysand3517 2 года назад

It's hard to find technicians that take pride in their work today like you did Craig.

@craigbraswell4269 Месяц назад

We are out here, I take pride in doing the job to the utmost quality standards, though I cannot vouch for my coworkers in that regard. Sometimes it's just the luck of the draw! If you get an honest tech, ALWAYS insist on getting the same person.

@logmeindog 2 года назад

I like how you tear things open and run through the what if scenarios. It relieves the what-if and I-wonder-why questions that pop naturally into the head but never gets answered because we are lazy creatures.

@acservicetechchannel 2 года назад

That is so encouraging to hear, thanks!!!

@smacleod69 2 года назад

or just use a full blast of nitrogen for 10 seconds thru each tube. Don't need no other chemicals.

@wilwiljames1 Год назад

bullshit

@acservicetechchannel 2 года назад

-The Pro-Flush Kit and hilmor lineset cleaner used in this video can be found at the following distributors: Gemaire, Johnstone, Trutech, RE Michel, Sid Harvey and Carr Supply - Get them on TruTechTools.com here: Pro Flush Kit: www.trutechtools.com/Pro-Flush-Kit?=affid43 Lineset Cleaning Kit: www.trutechtools.com/hilmor-hlc007-refrigerant-lineset-cleaning-kit.html?=affid43 -Save 8% at Trutechtools.com with this coupon code: acservicetech -Our Book: www.acservicetech.com/ac-book -Free HVAC Quizzes, Calculators, Articles, Resources at www.acservicetech.com Thank you for your support in making these training videos!!!

@The1JBanks 2 года назад

Thank you! These videos are very helpful!

@melissasmess2773 2 года назад

Condenser fan came off, damaged coils, stop leak eventually caused compressor motor drive shaft to break and I threw everything away and started over all new parts, lol. Luckily I saved many thousands installing everything myself! I learned a lot and got some more tools and it’s ran maintenance free for 7 years now!

@revealingfacts4all 2 года назад

I'm so with you. I lived in many places from Northern states to southern and I never found an honest HVAC company so I finally studied and learned this stuff and now do it all myself. My last project was Mr Cool heat pump with precharged lineset... what a beautiful product IMHO...

@pablogaviria9265 Год назад

@@revealingfacts4all I know. Several HVAC companies have become like " Used Car Salesmen " Trying to make a buck at ANY Cost.

@AimGobalWorldBibleSchool 4 месяца назад

Thanks man...the more we learn the more we Earn...very timely...Good Job!...Funtastic!.

@greyguy9767 2 года назад

Lol toys made to sell. How many techs care about cleaning lines?

@weavercattlecompany 2 года назад

Pro-Flush is a ripoff! GoPlus Flush Kit w/ Four Seasons Super Flush Solvent does an excellent job of cleaning existing line set. It will take a couple of cans but dries off fairly quickly with good results.

@Silky_boi 2 года назад

I’ll be honest I’ve always just blasted nitrogen through the bottle with the flush @ 300PSI and have a massive blow out on the other side in a garbage bad😅 at least it got all the oils and gunk out

@JesseWylee 2 года назад

Dito

@pewheretic7967 2 года назад

Thanks for going through the trouble to cut that short section of lineset open. Good detail. Appreciate your time and attention...

@80SWoods Год назад

Do you have to use nitrogen, or can you just used compressed air using an air compressor to blow the pigs and chemicals?

@rogerf3622 2 года назад

Very good through demonstration especially answering the question about possible line kinks. Thanks. I love Hilmor tools but wondering if the $400 price here is worth the investment.

@OnePointLander Год назад

Whats the difference between Rx11 and ProFlush?

@carlosportillo8863 Год назад

How about when just changing outdoor condenser in a R-22 to R-407 conversion? Just the pro flush correct?

@jlg8689 4 месяца назад

Unless you have a compressor burnout

@mikecoleman1927 2 года назад

Hey Craig, love your stuff! Been following you since I started in the trade 3.5 years ago. Bought your book, love it! Has helped me a ton. Couple of questions: First, you said the oil that was bubbling was acidic. I was under the impression bubbling/frothy oil was a sign of refrigerant trapped in the oil, not necessarily acidity. Could you further elaborate on that? Second, could you do a video on the best line cleaning practices for a burnout on package units, with emphasis on the condensers and evaporators? Is it possible to clean those line sets effectively? Or are these cleaning processes only for line sets on splits/mini splits? Thank you again for all your do! You are a blessing to the trades and customers they service!

@diputs84 2 года назад

Same thoughts

@revealingfacts4all 2 года назад

Why risk not knowing you got 100% clean vs just pull a new lineset? Use old lineset to pull new one.

@kenzistoen6668 2 года назад

we use the 'pig' gun in our shop. we love it. so easy to use. saves ALLOT of time. when your done it's unbelievable what it does. turns a thirty year old line set to almost brand new. always had trouble with using the chemical version. And pulling a vacuum down. WOW. Our shop is 100% behind the Hilmor Lineset cleaner. Awesome product!

@leeshilling83 2 года назад

What does pulling a vacuum down have to do with anything? You have to pull a vacuum with either method

@kenzistoen6668 2 года назад

@@leeshilling83 sorry. I really don't know why I brought up the vacuum. I was listening to something else at the time.

@acservicetechchannel 2 года назад

The vacuum makes sense because if you don't clean it, you have the contaminants in the old oil reduce the effectiveness of the vacuum which takes longer to do or the micron level creeps up during the standing vacuum test. If the lineset is clean, the vacuum pulls down fast. In reference to the chemicals, you may have had some chemical left in the lineset that didn't evaporate yet before pulling the vacuum. Thanks Kenzi Stoen and leeshilling83!!!

@kenzistoen6668 2 года назад

@@acservicetechchannel Thank you for clarifying that for me. Thats kinda what I was talking about.ive noticed that hugely in the vacuum between not using and using the pigs. I've only been in hvac for 3 years. And from all the jobs I've been on, this tool has made a huge difference.

@leeshilling83 2 года назад

I meant pulling a vacuum using the chemical method which I use vs the pigs? I’ve used them both and haven’t noticed a big difference in vacuum time. Maybe I’m missing the point?

@dannyl6507 Год назад

After using the deburring tool and using your finger to try and clean out the left over flakes and chips you are actually pushing them up line and not cleaning them out. Better to stick a cotton ball up the line first with a string attached to it. Then use the deburring tool then pull the cotton ball out with the string.

@brokensmile8487 5 месяцев назад

Great idea with the plugs and gun. However, for $450 bucks I can buy the plugs and use my air gun.

@Nab-Asn2803 2 года назад

Thank you for this great vedio I am using the flush can put using R 11 gas with nitrogen then flush with r 22 gas

@biglon74 4 месяца назад

SO cleaning the lines is good but what about air handler coils. In my case I am installing new compressor, should I clean the air handler coils? Thank you

@donkyuhbuhts540 2 года назад

What in the heck

@vc151284 2 года назад

How do you clean the air handler coil ? That only cleans the lines !!

@Crifstar 2 месяца назад

So amateur me asking, you don't want to push this stuff through the evaporator?

@SonicOrbStudios 3 месяца назад

Just picked up the Hilmor lineset cleaning gun and am happy to finally have it for system change outs

@rdg4295 2 года назад

I like using a box at the outlet side because the cardboard will actually absorb the oil/residue from the flush. A bucket ya have to clean out later.

@Weztcoastguy 2 года назад

Great video, I’ve always flushed with chemicals but I think I’ll be switch over now, thanks👍🇨🇦

@davidnunez7889 2 года назад

Thank you for the awesome videos Craig there is a lot of discussion on this topic. I had a lot of questions on the hilmor equipment and with your video I think I made my decision thank you.

@wilwiljames1 Год назад

I watched this video and immediately ordered the Hilmor

@junkyardjedi7706 4 месяца назад

This is really only needed if compressor burned out , 99% of line sets I reuse are clean and a good nitrogen blast is all that’s needed

@russm1757 2 года назад

Craig can either of these be used to clean a line set when changing from r-22 to r410 ? Russ

@wilwiljames1 Год назад

yes to both products

@jlg8689 4 месяца назад

Definitely needs the oils flushed out, I will be doing the same and need to guarantee it clean as possible so i will need to use both

@marconantel7735 2 года назад

What do they recommend for cleaning the pig?

@vampirel1983 5 месяцев назад

I dont have nitrogen or nitrogen tank, can i blow it with my air compressor instead?

@misaelmorenoluna7299 2 года назад

I just bought the Hilmor pigs, they're good quality, and use the rubber tip with a hose and nitrogen. Works just as good, I dont deal with compressor burnouts much just a normal changeout. I send in three pigs every time, mainly because I just think of "The three little piggies"😁, the whole set up is expensive.

@johndoe-wt4ui 5 месяцев назад

That 50 psi ain’t doing doodoo you gotta blast that line with 150+ psi

@hodesto 2 года назад

Great content. Love your channel. Is there a certain age of a line set that you would always replace. Or if there are no leaks the line set once cleaned is good to reuse?

@hamr1 Год назад

Sometimes lineset replacement is not an option....ie: condos

@keepthinking2666 Год назад

Very happy to see that I went through that kink I retract my previous statement

@Alex-jo2oi 2 года назад

What about just blasting nitrogen through both lines? Is it not enough?

@wilwiljames1 Год назад

nope!

@TheRedddz Месяц назад

Can I use this system to clean sediments built up in the water pipes that are copper?

@captainmigs1655 Месяц назад

Does it go through the evap and condenser coils?

@i.r.mrefrigeracion9985 2 года назад

Tenga su like 👍 buen hombre

@captainmigs1655 Месяц назад

Does it go through the txv or would I have to cut it before ?

@apizalfoshizal 9 месяцев назад

How are you supposed to dispose of the chemical

@formekinetics691 2 года назад

Off topic... System 5 years old, compressor and EVAP have been changed under warranty. Still have problems. Realized this time that EVAP changed with a piston instead of txv system came with. Tech charged system to subcool method. Four weeks later compressor out again. Besides losing efficiency going to piston metering...what can happen by charging by wrong method?

@johnnynguyen3838 2 года назад

Help please... Split TXV AC system. Severely undercharged. High superheat and low subcool. Charging in subcool method. Superheat is continuously decreasing, when it should be regulated by the TXV but isn't and subcool does not change. ???

@jmead6121 Год назад

Thanks I Love it ....but has he pig never Not Come Out ..If so whats next replace line set ? speaking from 1,000 of installs over 26 yrs exp wiring & firing all kinds Resd & Com equipment & its duct work but we used to flush with pro flush 100 % but now Days we rarely do an chemical flush / unless its a burnout / otherwise we just run almost 1/2 to full B tank nitro thur it & be done when Clear .. but Edit dang i kinda spoke before finishing the last 5 mins so threes is still much hope there should be no problems retrieving the pig .even w/ an sharp kink on even an 3/8 line set .Thanks again for the Great lesson Craig

@sidikjayaac Год назад

I also have that flushing tool kit, but i convert the rubber insert to 1/4 adaptor and block the safety valve, so i can do 250 psi pressure flush "dont worry, the tube can handle 400 psi" If i runs out nitrogen i just do backwards and put tissue inside the bottle, so the humidity trapped inside the bottles and i can use the pressure from the compressor itself

@patbrock7460 2 года назад

In days gone by before chemicals like these were available if there were no 90s we would run a fish tape through the suction line and tie a small rag with a bit of oil on it pulled it back a few times. Worked fine as for the liquid line (hold on to your hat) we just blow liquid R12 through the line as it was cheaper than R22 . Life got harder after 1992 EPA 608

@Brandon-mr6gi 4 месяца назад

Extremely helpful! 💯

@acservicetechchannel 4 месяца назад

Glad it helped, thanks for watching!!

@boongoon92 5 месяцев назад

Can we use that to clean out manifolds?

@wilwiljames1 Год назад

Is it only necessary to clean linesets or should the a-coil and condenser be run through? PLEASE ANSWER!

@michaelmckenna9022 2 месяца назад

Is it safe for the evaporator or condenser?

@ATH24TXEX 9 месяцев назад

I'm curious if one could use compressed air instead of nitrogen to do this... with the air compressor being equipped with a line filter?

@NativeBowhunter1965 2 года назад

As a maintenance man I see a lot of things that shouldn’t be. I’m working on an old system that someone put locktite on the Schrader valve and I can’t remove it to add refrigerant. It actually broke off and I had to leave my Appion core tool on it so it doesn’t leak. I’m going to use a bullet piercing valve so I can charge it. As soon as the tenant moves out in 2 months I’m going to replace the old system with a new heat pump. Thank you very much for creating this channel! Can you make a video on piercing valves on a standard split system condensing unit? It might help some who run into issues like I do. Thank you very much Craig!

@SmooveBee1 2 месяца назад

Not acidic, way too clean to acidic.

@keepthinking2666 Год назад

The only bad thing is you can't use the Hill Mall plug set because most of the time you'll come across jobs where people that don't really know what they're doing we'll use multiple different sizes of pipe so that means that plugs going to get stuck somewhere in there so only use it if you can follow the actual line outside

@picklerix6162 2 года назад

These flush kits are incredibly expensive. There are much cheaper ways to flush linesets.

@wilwiljames1 Год назад

Ok, Terry why don't you tell us about the cheaper ways.

@yohanessasabone2931 Год назад

How to order Those tools kit line set cleaning

@acservicetechchannel Год назад

www.trutechtools.com and use code acservicetech to get 8% off an order, thanks!

@Gabriel-vz7ml 10 дней назад

Thank you!

@juanacosta2788 Год назад

Great video I never nkew about this last peggs man I need to buy it

@JD-hr1ct 9 месяцев назад

Thank you, I really appreciate your videos. Any recommendations for 1/4 lines for minisplits? I saw that they don't have 1/4" pigs so I got the pro flush kit, but the seal doesn't go down to 1/4" either. I used some electric tape on the end of the pro-flush nozzle to sort of get a seal but it was definitely a hack. How should I clean a 1/4" line?

@JD-hr1ct 9 месяцев назад

Typed this and just had an epiphany: Maybe use a 1/4" to 3/8" flare reducing union? I'd still like to hear your recommendation.

@abrahanalegria5456 2 года назад

Thanks. Always very productive video 5*

@tomvana4270 Год назад

Used one yesterday and oil was still present in the line enough to drip and yes it was done properly.

@juanacosta2788 Год назад

You the man thanks for youre knowledge

@lenorazenall9966 9 месяцев назад

There so much art in their...make it simple...

@heres1-two-cents 2 года назад

Should explain reasons why you use one over the other both are not for the same use flush is for ? pigs for ?

@marconantel7735 2 года назад

More and more manufacturers are getting away from the chemical method

@joshuataylor283 2 года назад

The last company I worked for could care less.. if they change a compressor under warranty they still make labor charge

@timothy5977 Год назад

Yeah, all these companies don't give you the time to do things right. They make their money by volume, not quality.

@davidb2438 2 года назад

Do you reuse pigs from job to job? If so, how many uses do you get?

@justinbelleville1392 2 года назад

Can you really take out all traces of R22 or would it be best for a new line set?

@cardsfan-ym1bj 2 года назад

Should always change line set if feasible

@picklerix6162 Месяц назад

R-22 is not the problem. It is the acidic oil and any particulate matter that you want to remove. A lot of old linesets have scale inside from brazing without nitrogen. I suspect that there are a lot of people in the field who don’t use nitrogen when brazing.

@122195brandon 2 года назад

Got the Hillmore line set cleaner a few weeks ago it works great

@wilwiljames1 Год назад

I just ordered it and your testament just makes me think I did the right thing, thanks for your post.

@captainmigs1655 Месяц назад

Does it go through the evap? Or just the straight line set

@captainmigs1655 Месяц назад

???

@122195brandon Месяц назад

@@captainmigs1655 just lineset. Cut out evap and condenser and do suction and liquid line one at a time.

@captainmigs1655 Месяц назад

@@122195brandon that just defeats the purpose of what I need it for. I wanna make sure I have all the oils out the evap so I can retrofit a condenser sled package

@raiders4lifejustwinbaby856 Год назад

Where would i get the nitrogen tank to blow out the flush?? Im a diy'er or can i flush without nitrogen?

@paulr2765 Год назад

Grainger Item 23YL99Mfr. Model 34LS-114

@tesakotukaka6222 2 года назад

I got the RX 11 flush leaked on my pants and went thru and burned my kok 😒😒😒

@Dicktoben 6 месяцев назад

😝😝😝😝

@jackvolta575 2 года назад

@jakegriffin9776 2 года назад

What kind of gloves are those?

@mylesm7947 4 месяца назад

Thanks 👍 great vid.

@brianmcdermott2430 2 года назад

Great demestration . Thank you Craig.

@zipperdingo6385 2 года назад

Great value videos every time Craig

@acservicetechchannel 2 года назад

Thanks so much Zipper Dingo!!!

@davidbriz7066 Год назад

Wouldn't purging nitrogen through the line set and into a pan work as well?

@wilwiljames1 Год назад

Nope! The nitrogen alone wouldn't build enough pressure

@حسين-ج9ط7ي 2 года назад

Great job, thank you brother. You are so talented

@vilhelmstein2091 Год назад

Is this stuff bad to breath?

@Sniper.925 2 года назад

Just got your book and wow, it's amazing

@primusheating1 2 года назад

Now, you sold me on the demo with the roll-up lineset.

@codykruies3414 Год назад

Has anyone had any bad experiences with this stuff?

@dankariparker Год назад

Is it possible to clean an evaporator coil with the Hilmor tool?

@wilwiljames1 Год назад

I'm crying to hear that answer.

@luiselizalde6757 2 года назад

Excellent teacher thanks a lot for all you effort to teach,

@olurotimiadepitan5087 Год назад

Where can I get that knee mat you have? Thanks.

@acservicetechchannel Год назад

I got that on amazon a while back!

@jessec.9295 2 года назад

Thank man I swear I needed this

@waynemiles7027 2 года назад

You my friend are a master teacher.

@stephwaylonwells3218 2 года назад

👍

@peterhodgkins6985 2 года назад

That's an outstanding demo!

@l.crossjr 2 года назад

Can Nitrogen alone do the trick?

@acomman77 2 года назад

Honestly yes nitrogen alone can do the trick long as you blow it to where it falls out the tube. If the compressor is higher than the evaporator, blow it from outside in. If the evaporator is higher than the compressor, blow it from inside out.