How to Recover Refrigerant Properly HVAC.

[@bacaw2856]

I'm an electronics student trying to learn about disassembling portable AC units. After seeing this video, I'm now confident that I shouldn't mess with the refrigerant portion of the system without the proper tooling lmao. Just came here to say what a clear-cut instructional video.

[@Froggability]

Few thoughts here 1/ use a schrader replacement tool, 2/ a brand new tank? always vacuum it first to remove the nitrogen 3/ mark not just R22 but clean / or Dirty 4/ didn't purge hoses or the recovery machine 5/ best stop the recovery above zero, then replace the schrader without sucking air in. 6/ Why the switch from liquid to vapor toward the end? When you were below zero anyway? Stick to liquid the whole time can't go wrong. No need to switch on the tank it doesn't matter. 7/ at 5:44 operated dials in the wrong order, didn't purge the pump. Next time it's used it's bursting with R22. 8/ is that a linked suction line at 2:44? 9/ good practice to weigh the gas regardless, pencil the weight on the tank

[@ellispeterson706]

Nathan can the recovery machine filter or separate if there is air in the system?

[@Froggability]

ellis peterson. No. If air has got into the refrigerant it's usually bad news. If it sucked into the bottle you can either: send the refrigerant fairly promptly to another vessel by liquid only, then gas off remaining vapor to lose the air. OR gas off vapor from the bottle to lose the air. (because air floats to the top) I'll get my fingers rapped on both these suggestions due to gassing off however choices are limited. Run the gas through a filter drier, and install a filter/drier on your AC If it's nitrogen it's not such a problem, there's no moisture. A recovery pump cannot separate or purify gas but you need a refrigeration distilling machine, of which some companies have one but I have no experience

[@timhurlbert5678]

No scale and you fail. Lol

[@La2venida]

Appreciate your comments. Can you do a video

[@Anonymous-wf8gu]

What is that yellow bubbly liquid called? That he put on the schrader valve?

[@휘센0187]

I am Korean and your lectures are better than any other lectures.

[@luisromero851]

I'm a Hvac student and your videos help me a lot. Thanks!!!

[@GarettChamberlin]

Yep me too!!!

[@MarcelHVAC]

Het is learning it you the wronng way, that is too bad

[@HaxtunDBagCoach]

@@MarcelHVAC he should learning it from same school you learnded spelling grammar and English.

[@Maven401]

Even as a non student...always love to watch these videos. Even, as I know how to evacuate properly. Just remember to always purge lines.

[@luisgastonconyedo6352]

The only thing that i would like to remark is that is important to always purge the hoses before let refrigerant enter into the tank. If we don't do that there is a chance to allow air (with moisture of curse) and contaminants get inside the tank. So basically we're making useless that filter-dryer

[@Wanderer_52]

Yes

[@BringOwnSelfSuccess]

Glazed Guava because these types of procedures need to be demonstrated meticulously so techs who are trying to learn or recall certain things within these procedures won’t be confused or else a 3 to 4 hour job would have to be done all over again or possibly a waste of time and equipment damage.🤷🏽‍♂️

[@mallkomoha6823]

Spot on mate!

[@timwilson6650]

You are correct! and may I add that you should not start the machine under a load.

[@dirtybird7257]

@@timwilson6650 thats what i think too. why not let the flow do the work

[@scottcarroll92]

Dude! Your videos are mint!! You explain everything without over complicating it and its easy to follow. Keep it up buddy

[@steven-sl7jv]

This is where I need more practice also need it in doing a vacuum. Your videos are awesome. Than you

[@_LiveHouse]

fast n simple. how i needed it before my boss came back! thank you

[@grandd5897]

First time recovering R-22. This is the best video I’ve seen.

[@jaimegonzalez6926]

You a explained the process so very well you can actually be a school instructor if you wanted so very well done I'm new in the trade an I have been learning a lot from your videos... Thank you very much an keep them videos coming ..God bless you and your family.

[@josecortez772]

Thanks for the video. It’s been a while since I’ve used a recovery machine. Good refresher.

[@arron810923]

1. Purge line before recovery. 2. Since it is a leaking system, I wouldn’t let it go below 0 since you may suck air in. 3. Weight Tank first making sure not exceeding the 80% limit.

[@kerrodmartorella4949]

Defs purge!

[@MarcelHVAC]

@@kerrodmartorella4949 Vacuum is better then purge

[@lukehooton531]

Hes not sucking air through the same place its leaking. He's connected to the shredder hes replacing. If it was a flare though then u would go just below refridgernt exposer is worse then tiny bit of air in the cyclinder. Which shouldnt go back in the same system either

[@rodjorritsma84]

Agree with Aaron. Always weigh your tanks when filling them. Purge purge purge and never assume the shrader valve is the only leak so don’t pull down too far past 0.

[@ramirezsneeky]

Great help!! Haven't had to recover in 2 years. Great refresher! Thank you

[@scottytomcat4267]

Absolutely was a great help Been a long time since I had to recover I'm glad you had this video out there thank you

[@tommiebright4414]

This guy's videos are some of the best on KZbin. Keep up the good work and this service you are sharing with the world!

[@stevenserpa3717]

Thank you for this great video. Currently learning about recovery and this was very helpful. Keep them videos coming

[@stanwei157]

Good practice is to commission the recovery tank and blend the hose before you open the tank valve.

[@israelperez8911]

Excellent video. Thank you Sam.

[@archiepalabrica6028]

Hi Mr SAM thank you very much for your video. I learn a lot.

[@alakinggg]

Crazy how you learn more on KZbin then in school just subscribed

[@thesoccerplayer5539]

Very well explained thank you now all i need to do is watch a couple more times gracias

[@realestateinfonet9041]

Very nice work! Congratulations!

[@andrewewers1183]

Did I miss the part where he purged/bled the lines of air? Or did he just not worry about it?

[@davidwisniewski1505]

Hi Sam. Awesome video and I’m getting ready to recover all of my refrigerant from my system to replace a leaky coil and your video appears to be the most straightforward I’ve seen. Question for you would be how would I purge the lines prior to using your procedure? Also, do you have the model number of the recovery machine that you’re using?

[@Logaweed]

Can someone explain what difference it really makes wether you recover in vapor versus liquid? For example what was the point of switching over to recover vapor after you were already into negative pressure after recovering liquid from high side.

[@TheytellToomanylies]

None, i believe those valves are for charging and saves inverting the tank to withdraw liguid. Whatever is been recovered should go in the tank on either valve side

[@stevenengler2387]

Is that a filter drier on the recovery machine...smart!

[@sortom2766]

Thank you Sam I’d learn how to do this process of recovery thank you again

[@reyes967]

Excellent video.

[@ganeshsurujlall4478]

I really enjoyed all your videos. I have a promax RG5410hp. The gauges on this machine said 410a. And the high pressure select switch said (410a). Does this machine only recovery 410a Freon or can it used to recover other Freon. Please let me know.

[@La2venida]

I would like to know this also

[@brownpotatoe3624]

Can you explain what you are looking for on the gauge? When you did the high or liquid what are you looking for on the garage? What is a good range? For the low vapor side are you just looking for the needle to be in the red? Also, when the needle is where you want it to be should you let it run a few seconds before turning it off or can you turn it off right away? Does the order in which you open/close or flip switches on/off?

[@johnnygallardo76]

When recovering do you have to worry about the tank blowing up because it gets overfilled?

[@ilovenythismuchilovenewyor5801]

the air filter you used in the recovery what brand is that never seen ppl use that to recover but I always wondered why not use one during recovery to help take out more contaminants

[@MarcoGonzalez-bi6cg]

What are good “off brand” Hvac tools like recovering machines and vacuum pumps ?

[@johnnygallardo76]

Are both your high and low connected to the condensing machine from your gauges as well?

[@mehdi-9999]

How do you make sure there is no air in the lines when you disconnect, and reconnect the hoses? I mean, I would use vacuum pump to manifold, then extract all the air before opening the liquid and vapor valves from the ac unit to manifold.

[@JhonnyL3002]

That’s pretty much it! Lol. Vacuum pump to purge anything in the lines. Least that’s what I was taught!

[@Rhenexful]

Thank you for sharing my friend 🎉

[@thatmetalguyrecycling7379]

Thankyou for making this video great job brother

[@dronesetc9769]

Question about hoses, I think I had/have schrader valves in some of my hoses and it slowed the vacuum/recovery process last time I pulled R22 and put R407 . I noticed some hoses have valves in them some don't . I have not seen or heard a mention of this?

[@ZZdarkslayerZZ]

I'm still learning the trade and am in trade school. I thought we were supposed to connect to the vapor line on the recovery tank and not on the liquid line of the recovery tank. That's what it says on my worksheet for school so I'm going to stick to the vapor line on the recovery tank. We are using window unit ACs for the test and procedure.

[@johnnygallardo76]

Do I need an extra hose or can I just use the hoses on my gauges to recover on a recovery machine?

[@claude77573]

You mentioned you are converting the refrigerant in this R22. Why? What are you converting to? NU222B? How is that working?

[@robertmunguia250]

Good video. How would you purge? The machine has a purge setting there.

[@albertomartin70]

Can you recover up to negative pressure on a system with a leak? Can we stop on 0psi just to prevent excessive contamination on the refrigerant piping?

[@fromanabe8639]

Can the recovery machine take in liquid refrigerant and pump liquid into the tank? Or can it take in only gaseous refrigerant? Can it output either liquid or gas ?

[@DavidGS66]

Here in EDM, Canada, I salvage Cu. I don't release CFCs anymore. I'm guessing it costs too much to pay for this service just to salvage Cu.

[@XxMalabooo]

Just curious what is the name of the pump you use to extract the refrigerant? Can you get one cheap?

[@LeuCustomKnives]

Can you add recovered refrigerant back into the system once you change out that shrader valve?

[@ND-fy3wu]

You can by law, or charge back to any systems the same owner has, but usually you should do a reclaim job to the refrigerant to clean up especially since that was a bad leaking system, and of course this will cause more time and costs for the customer, but that is a better quality job.

[@antonionibarillas8255]

Thank for refreshing information

[@jayhvac4474]

Bleed the yellow line also I was just doing some schooling on this today and I was told you should do it on the vapor side being that the liquid side will heat the cylinder up a lot more?

[@MoreThanMaintenance]

Can you add more details if possible to your comment for the other viewers. The vapor side (low side) is the blue... the liquid line (hi side) is red. You advised to bleed from the yellow line. The yellow is the waste or vent hose. Do you mean to bleed the yellow hose before or after recovery? If I bleed the yellow service hose before recovery won't that allow air in the line... or do you mean after the recovery as to not contaminate the system when charging another system. Thank you for the added input and clarification for the other new techs who are entering the industry 👍

[@alimahdavi01]

Thanks, it was clear and helpful

[@YourGraveDigger83]

Im in class now, and i just learned to always vent your lines off all air before removing the refrig from the unit into your tank. Can you confirm this?

[@Jv2020perro]

Very helpful thanks much

[@DougieDiety]

If you're scrapping a new unit that does not utilize Freon as a heat transfer medium, do you see any issue with shutting off the electricity supply to the unit and then simply cutting the coolant lines running outside your home to the condenser? Whereby letting the coolant bleed off into the air... If so, what are the issues of concern? Wearing safety glasses whilst cutting the lines comes to mind, but other than that...?

[@n2n8sda]

do NOT cut any refrigerant pipes... ALL refrigerants in use today are bad for the environment, some a lot worse than others but none of them are "good". Depending on the refrigerant in the system many refrigerant dealers will buy it back so finding somebody to recover it free of charge is often quite simple, some compressors are also designed to hold a certain amount of refrigerant too by what is known as a pump down operation (it uses the aircon compressor so no tools required)

[@n2n8sda]

kzbin.info/www/bejne/oWiVe6OQfMaorKs

[@beachbrettf]

...oh boy.

[@martinjuarez333]

Thank you so much man for taking time to teach us some of your knoledge your videos really help a lot ! your awesome just one question , does compressor got to be on or off during recovering ?

[@viisteist1363]

where do u put the liquid ? can only reuse if u know the weights ?

[@jayce1183]

Overall a great video

[@kylefinamason4952]

easy thanks bro i watched performed perfect thanks

[@thingish]

Purging air and weighing out the salvaged R22, or because you were not planning to reuse this refrigerant in the system, weigh-out wasn't necessary? Just thinking it would be good to know how much of your 80% recovery tank capacity you have left to fill?

[@ronaldpalmer2719]

purging the air is important, but weighing out is not really necessary. All recovery tanks have a tare weight. So the weight of the tank with the refrigerant minus the tare weight will be the amount of refrigerant recovered.

[@newtong579]

Hi Sam, very informative video. I've watched it a few times just to learn the procedure. My question is about venting the lines to remove air. Is it required as I guess the recovered R22 is no longer useful?

[@MoreThanMaintenance]

If your talking about venting the lines into the recovery tank... I guess I do it out of habit 😅 so no you don't have to vent out the lines. As for the refrigerant... the refrigerant should be fine if you wanted to reuse it. The recovery machine should have a filter attached... admittedly not everyone chooses to do so... but if you do have a filter you can reuse it 🙂 Hope this helps and thank you for watching!

[@hunteradams00ha]

@@MoreThanMaintenance Just my 2 cents, but the refrigerant actually cannot be reused anywhere except in the unit it came from.

[@TheMaster5150]

It's called "purging" the lines of air. Yes you should always purge the line if your going to reuse the refrigerant after a repair. If it's going to be reclaimed, or in the case of R22 can be sold to a supply house, don't worry about it. Fyi still use a filter dryer, it protects your recovery machine.

[@monc1ne]

newtong579 you should always purge your lines. Air in your refrigerant can contaminate it it. From what I remember you shouldn’t use it elsewhere or be given to the owners (since it’s there refrigerant) but it should be turned in.

[@anibalpuertorico6556]

And how you know what the unit has as in refrigirant? I just started my HVAC class so I'm starting to learn

[@myronward203]

Look on the plate that's located on the unit.

[@jakebaldwin1308]

Not an HVAC specialist, or even apprentice/employee for that matter. Just a curious mind but why can't you reuse the tank for a different gas after the one recovered gas has been reused elsewhere? (i.e. you recover R-22, then reuse that R-22 in some other system but then aren't able to put in something like R-410A afterwards) Is it that there might be residual gas left behind that might mix in the secondary gas causing unforeseen issues, maybe? What if on the tank someone were able to, and did, remove the valve then rinsed the inside of the tank and allowed it to dry, then reinstalled the valve. Would you then be able to reuse the tank for a different gas or is it generally a hands off altogether ordeal? Why? Please explain... I'm generally curious so any info would help, thanks.

[@ND-fy3wu]

you can add r22 to the bottle and pull it out to somewhere, and do a vacuum to the bottle and add r410a to it later. However, you can not put 2 kinds of refrigerants into one bottle at same time.

[@jimmcgettigan4826]

Very informative👍

[@johnnygallardo76]

Can you recover without using a recovery machine?

[@robertsneed3]

Very good information thank you for sharing#PEACE✌🏾

[@rickytruong5994]

So recover liquid then vapour from the same liquid line connection at the condenser? Or do we switch over to the suction line when recovering vapour?

[@mindcontrol1973]

Always recover liquid from liquid line and vapor from vapor line or suction line. But no need just recover from liquid line and that’s it.

[@johnnygallardo76]

What's the reason why you can't put two different refrigerants in a recovery tank if it's just going to be disposed of?

[@jorgemercado9929]

Very Helpful thank you.

[@paulycoasters]

Why are you pulling the low side below 0? Youre introducing noncondensibles into the refrigerant line. Also backseated the gagues in the wrong order and forgot to purge at the tank. Always low to high.

[@telsatd.o.o.6024]

Good video, thank you

[@johnnygallardo76]

How do you know you're not overfilling the recovery tank?

[@luisvisalden9971]

Hi it's always first the liquid line and tdd he the vapor suction line ? I work with a Tech that's open the two lines at the same time when recovery

[@mobkinq]

What do you do with the recovery tank after recover the refrigerant. Do you sell it? Use it again?

[@MarcelHVAC]

Throw it over the Mexican border

[@mobkinq]

@@MarcelHVAC wouldn’t that give them something to use to climb ?

[@MarcelHVAC]

@@mobkinq you should throw while the valve is open

[@ronaldpalmer2719]

EPA says it can only be reused in the machine it came out of, or another that is the property of the same machine owner. You can not sell it either. It has to be turned in for recovery, or proper disposal.

[@youngamazin2010]

Great video

[@ronselectrical8177]

Can I use the same recovery machine for multiple recoverys? Of course with diffrent tanks for each refrigerant. just asking because they say to use diffrent gages for each type of refrigerant.

[@MoreThanMaintenance]

Yes you can use the same recovery machine. 👍

[@charlesdoss7962]

No low loss fitting and no purging of the hoses? You just added several hoses full of air to your recovery tank. If it is humid at all, the moisture is going to start acid to form in your tank and the system if you put the refrigerant back. Next time, use the purge feature of the recovery machine!

[@shubhamnaik2923]

Can we recover gas from system with recovery unit when it is already having leak in suction line ?

[@seananderson3386]

Super helpful. Thanks!

[@kevintemido]

On the service ports, do the valves have to be front seated or back seated?

[@ND-fy3wu]

usually totally back seated will seal up the service port, totally front seated will seal the line pipe to condenser unit, mid seated will open all the 3 ports.

[@raulrobles2961]

So with any refrigerant you always have to recover first with liquid then vapor?

[@lukehooton531]

Quicker to remove the refridgerant by liquid then vapour for safty and completes the recovery

[@B3nnywhit3]

nice video. let me point something out. you didnt do was purge the lines before opening the recovery tank. great video other thank that.

[@marcusdarnell3348]

Thanks man I learned a lot!

[@pasqualeparente9776]

How do you know what refrigerant is in the unit, is it indicated on the unit?

[@elgordo8784]

Thank you 👏

[@Los-071]

Great reference.

[@thomascbeaty]

Thank you sir good video you explained the process very well Yah bless

[@MoreThanMaintenance]

Thank you! I truly appreciate the feedback! :)

[@jr27ny]

What’s the reason for filter drier on recovery machine?? Just asking cause I’m in the field as a helper and 2 years in NEVER seen this

[@MoreThanMaintenance]

I had one of the older field Supervisors tell us if you are going to reuse the refrigerant this will help from contaminating the refrigerant. Hope that helps. You can purchase these specifically for recovery machines. 👍

[@jr27ny]

Sam yes! Makes sense now we never reused refrigerant. That’s why I probably never seen it. But that does seem good to have on the truck just in case! Thank you

[@samuelvalenzuela4541]

@@jr27ny No, the filter dryer is not use to keep the refrigerant from contaminating, if you look the position of the filter is before the inlet port of the recovery machine so the filter is to protect the recovery machine from the contaminated refrigerant that you're recovering

[@JeffLarge-ij9dp]

This pretty deep, If you READ into it?

[@simpliciocamirino2271]

thank you for that sharing

[@jimbola77]

excellent partner thank you for sharing God Bless!!!!!!!

[@MoreThanMaintenance]

No problem... Glad you find them useful! I will continue posting enjoy!

[@ickooapo8841]

What is the brand of recovery machine

[@juanruiz4234]

What bra is your recovery pump

[@marks6663]

Can I do this myself without a refrigerant recovery machine to save money and then just get an AC guy to put new refrigerant in? I am a handyman by trade and would like replace the compressor myself. If you respond, please upvote so I know you responded. Thanks.

[@MoreThanMaintenance]

You must be certified in order to handle refrigerant in any capacity... this includes recovery and recharging of refrigerant... replacing compressor etc. I do not recommend you work on the system if you are not certified. If you do call for service and the on site technician suspects that you worked on the system he can report you and the fine is a few thousand dollars. Hope that helps. 🙂

[@marks6663]

@@MoreThanMaintenance Are you saying it is illegal for me to work on my own AC compressor?

[@MoreThanMaintenance]

@@marks6663 Unfortunately if it has refrigerant... yes. You are legally allowed to work on everything else on your system... capacitor, fan motor, thermostat... all the electrical. The EPA has a strong hold as to what legally you are or are not allowed to do regarding the refrigerant... When you go for certification the test has nothing to do with HVAC related repairs whatsoever. It literally is how one is to properly handle refrigerant... laws... environmental standards etc. Hope that helps my friend. 🙂

[@robertwojtowicz933]

How about pulling vacuum on your recovery bottle before you use it

[@jamesfisher4626]

Could you please tell me procedure for purging remaining refrigerant from machine to bottle as I have same machine and really struggle sometimes

[@Sam-dc7qp]

What type of recovery machine is that if you don't mind me asking

[@monc1ne]

james fisher i recall if it’s minimus release, it’s ok?

[@AviewFromUnder]

No line purge! System had a leak and you didn't stop at Zero? and pulled into negative? Im new but looks a bit like mistake after mistake

[@MrGabriel1973]

love video thanks

[@calledout4437]

So if I use a filter drier to recover my refrigerant and then replace the compressor, can I just reuse the same refrigerant? Seems like if you have a good filter drier acting like a filter why not??? Any advice from anyone on this?

[@MacRealty1]

I guess you should have a scale on the tank to see how much you were able to recover?

[@NoOne-vi6cp]

What happens to the recovered refrigerant? Cant this machine be used to pull vacuum in a system?

[@msboys1000]

So you recover with the unit off?

[@kenshinhimura5894]

Yes. Pull the disconnect switch out or flip the breaker to the unit.