Charging R-410A into an Air Conditioner that's Low! Connect, Measure, Add Refrigerant, Disconnect!

In this HVAC Training Video, I Show How to Check the Charge and Add R-410A Refrigerant on an Air Conditioner that is Low. I Show the Procedure for Connection, Measuring, Charging R-410A Refrigerant, Disconnection, and Leak Testing at the Ports! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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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 #r410a #airconditioner #airconditioning #measuring #measurement #low #procedure #hvacprocedure #refrigerant #r410a #disconnect
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[@DanO181919]

You are such a blessing to the HVAC world. Thank you for all you do!!

[@acservicetechchannel]

So Glad you enjoy the videos Danny!!!

[@jollyscaria1922]

Very good welcome shering gues best wishes welcome..one point veary good careudfull R410 using methad thsnfor me allthe time ..

[@Bangkok-ik1fp]

The BEST demonstration I've seen. Thorough and well explained.

[@acservicetechchannel]

Glad you enjoyed it!

[@RadioChief52]

I've always wondered why these analog gauges aren't made with the R-410 saturated temperature on the outer ring where you could read it more accurately. Put the pressure on the inside ring.

[@wilfredovega577]

Once again an amazing demonstration of proper charging technics.

[@Ravi-ls8zq]

Hello

[@Joseph-vj2ph]

You do an awesome job! Step by step. Way better than other videos I have watched. Keep up the good work.

[@mpmfr]

I’m just a homeowner interested in knowing more! Love the videos Craig! Thank you!

[@antoniolaracuente437]

thank you Mateo and thank you for these videos that you show on KZbin you are a blessing to most of us out here I'm from Jersey and I really appreciate what you're showing on these videos

[@stevee7774]

Who is Mateo???

[@DavidTaylor-he7zl]

I really appreciate your videos. As a newly graduated student of hvac I find your videos easy to understand and reassuring of procedures. Thank you. Keep them coming

[@davidnunez7889]

Great video Craig it’s sad that I learn more from you than college. Keep up the great work and glad to see your subscribers climbing up.

[@tinysand3517]

I do not know anything about ac, after watched his video I have confident I can upgrade my system. Thankyou very much Craig

[@berhanusisay3588]

The steps are really amazing.

[@trompelemonde4728]

Seriously fabulous video, I am so pumped to finally understand what's going on here. THANK YOU!

[@jasonjohnsonHVAC]

Even though im strictly commercial/ industrial.....instill enjoy your videos and instructional content......its all heat transfer at the end of the day and the basic principles still apply....Well done Craig...as always

[@acservicetechchannel]

Thanks Jason!

[@jonathanraul4086]

Thanks a lot. Great video once again. Keep up the great work

[@marshallnmoonshine]

Cleanest manifold ever. Haha. Thanks man, I love your channel.

[@DavidHernandez-gt9bo]

Nice , once again spot on ! Solid techniques !

[@brianmcdermott2430]

Great info. Craig. Thank you.

[@Billo1281]

I’ve learned so much from you guys, thank you so much!

[@Vuratzkee]

Simple short video but very informative. For DIY people out there. It can save you a lot of money . Just give it a try yourself first and see if it gets better. If not. Seek the help of a pro. By watching this video, thank you for sharing information. Keep posting

[@user-bd9cb9lp5k]

I BOUGHT THESE CARDS FROM YOU ,HELP A LOT, THANKS FOR HTE WORK ,

[@kennethlobo4420]

Great video

[@tecfriorefri]

This manifold is very cool

[@acservicetechchannel]

Absolutely!

[@joebird1400]

All this new equipment is crazy

[@virbone7141]

U R wonderful people helping the comfortable equipment technology to people

[@jonnykielbasa]

Best Video on charging a system! I've seen Many and went to Tech School So this is your go to guide for anyone EPA certified to work on AC Units

[@acservicetechchannel]

Thank you so much John!!!

[@deanmartin1966]

Good video. Thanks for sharing. You always work on the nicest systems Craig.Lol

[@acservicetechchannel]

Thanks so much Phil's HVAC!

[@deanmartin1966]

@@acservicetechchannel you’re welcome

[@peenopiani7209]

Excellent sir.i got answer of all my questions🙏

[@acservicetechchannel]

That's great to hear!

[@samuelnunez9521]

Super helpful thank you for this video

[@acservicetechchannel]

Glad it was helpful!

[@testtesting2868]

Excellent!

[@chuck0837]

Thank you so much for these videos. They really help to understand the concepts. I have a question: We add R410 in a liquid balanced form, but I am curious if R410 leaks from a system over time while the system is not running, does one or the other (R32 or R125) leak out disproportionately and imbalance the function of the gasses and cause a loss of efficiency ? If that was so should the system be evacuated and new refrigerant installed ?

[@Hopefullymarried]

Those Hilmar gauges are nice !!

[@acservicetechchannel]

yup!!!

[@randybobandy9828]

I got their lineset pipe benders and they are 👌

[@namle-br8ju]

many thanks for sharing and showing this video. just one question about the super cooling, your machine has shown the target super cooling value is 9.7, but my machine does not show this SC value, where can I get this value? And where do I get the line temperature reader?

[@nohmadbaker5449]

Thank you for making this video. I really needed that lesson

[@mhamrahi]

Craig, Lennox units don't have any target Subcooling on the sticker. How can we figure that out?

[@williamfeng6499]

I wonder is the subcooling is changed by the outdoor temperature. There has a subcooling rate table, is the table is not useable? Is the subcooling always need to be kept at 8?

[@mhamrahi]

Also any reason you never use a flash charger on your vapor line for refrigerant refill, instead of opening and closing the valve multiple times? I know you talked about it but never used it

[@mitchc1263]

The way I hook up the guages. Open suction side guage, close liquid side. Connect suction hose and let it bleed through charging hose and then close charging hose ball valve. Open liquid guage to bleed from suction side, then close liquid ball valve. Connect liquid line hose. Close guages and open liquid ball valve. Definitely no air getting in because the system pressure is pushing air out as you're connecting Hoses. Any thoughts or objections? The way taught in school is sort of silly to me. So I do it opposite. I use ball valve low loss fittings. Idk if this would work with his fittings in the video

[@MtPockets14U]

Like to see video to show people what happens when the charge 410a with vapor by not paying attention

[@bonnylasu7665]

Sir good day to you. I'm interested watching explanation for air conditioning. R22 refridgerant can be used in R32 CHIGO room air conditioner charging air conditioner?

[@anthonybarragan1687]

Just one question, did you put your high side gauge on the access port of the discharge line vapor or the discharge line liquid line after the condenser???

[@briekhnaa]

Hello. Why did you purge at yellow hose near the cylinder and not on other end ,near the manifold? Refregerant comes from cylinder and push air , in yellow hose , towards the distal end

[@ejohnfall]

Thank you again for good information I have questions what the perfect pressure on R22 system when you connect your gauges just refresh memory

[@Mridgwell]

Do you mean static or running , what’s the outdoor temp what’s the indoor temp ?

[@ejohnfall]

Running temperature 89out and 78 inside

[@sawdust85222]

Honestly, pressures are not all that important. What you really should be after is the saturation temp. There are a lot of variables when it comes to operating pressures.

[@Mridgwell]

@@ejohnfall 75 psi

[@Mridgwell]

Think your super heat and sub cool is what's important, not everything will always be text book perfect but majority of 410 systems if you have target sub cool your good to go.

[@fisforfriendship6093]

is delta t not required when dealing with txv systems?

[@bobbyburt3636]

Is it normal for the suction side to be high if the compressor is not running?

[@WESK18]

how do I calculate the required r410 on an empty 4-zone mini split 36kbtu, Suction OD is 3/8 and Liquid OD is 1/4, I have 82ft total for all 4zones but not sure if I need to multiply this number by 2 because each set has two lines, if so then its 164?

[@davidberger4726]

If you have a leak? How do you know if your blend is correct ?????

[@william-feng-007]

why do you think the subcooling should be 8? if this system has TXV, the subcooling is variable. only the superheat is stable. could explain this?

[@michaeldreves5072]

Can you safely pump down a 410a system and if so what do you do if it's a brand new 410a system and you try to pump it down and the pressures are coming down but than it makes loud swooshing sound and pressures claim back up quickly

[@randybobandy9828]

Are you pumping down a regular unit or a mini split?

[@jonfitz8280]

You have to have a low loss fitting with all or just this

[@Beariam24]

Would this still be the same if the internal duct had a restriction on the intake side of the unit?

[@zippythechicken]

a clogged filter or one with too high a rating can result in you overcharging to compensate so check that first

[@xdropthatx]

Should you charge by what it says on the nameplate (indoor txv subcool) or by what the chart says in the inside of the panel?

[@acservicetechchannel]

you would need to check and see what metering device is at the indoor coil. if its a txv, use subcoolung. if its a piston, use total superheat, thanks!

[@caru3257]

Maytag has charts based on liquid line temperature.

[@randallwaters4273]

Yes and only by the chart..ps best way is approach method not subcooling

[@reyrey9634]

What if you use a liquid to vapor adapter/ vaporizer.. Do you still have to throttle the 410 into the system?

[@randybobandy9828]

Isn't that only needed for minisplits since most of them only have a connection port on the vapor/low pressure side?

[@jfelshaw]

Why don't you use one of those quick charge vaporizers?

[@acservicetechchannel]

you can just charge a little at a time to avoid damaging the compressor.

[@raymondperez8182]

I’m confused because you had your vapor and liquid line lever open ? Wouldn’t you need the closed during purging ?

[@MaMa-qh4dy]

The unit was NOT running while being purged. Thus, no liquid refrigerant could be sucked into vapor line and then on to compressor.

[@raymondperez8182]

@@MaMa-qh4dy appreciate you a lot for this mamma makes total sense now !

[@ChileVerdeDavid]

How many times have you guys uploaded this video?

[@acservicetechchannel]

Do you mean versions of videos adding refrigerant?

[@mrbiglungz1789]

Isn’t that around 312psig on the high side pressure?

[@paulrozinski1488]

What happened to the in-line vaporizer that you’ve shown in so many other videos ??. I see that you’re showing a new Hilmor set-up. I don’t know about this one, I see a lot of plastic on that manifold gauge set . From what I see, it just screams “cheap”.

[@bobbycrosland9906]

Been using the same setup for about 10yrs, drops, weather and all it's the most accurate and durable I have used. I have Joblink kit, Sman, even the Elitetech digital set which is the best digital set by far but I prefer the setup he is using in this video.

[@bobbycrosland9906]

Also that's an iron body these sets, gaurges are covered by proactive drop proof rubber, looks plastic but actually no plastic on this set

[@REDRUSSIA0587]

Clean filter, new coil what would cause a 30 degree delta T?

[@acservicetechchannel]

Low indoor airflow. check the duct if its too small or a low blower speed, thanks!

[@REDRUSSIA0587]

@@acservicetechchannel appreciate it figured so

[@mikev.1034]

👍🤘🤙

[@raymondperez8182]

Also what if you just have gauges and not those clamps to put on your vapor and liquid lines ? Could you make a beginner video I feel like this is for techs with all the gadgets

[@paulrozinski1488]

This channel does have a lot of other videos targeted to beginners. His books are also fantastic for beginners. Believe it or not, what he’s showing now IS the minimum amount of test equipment needed to do DIY service. They’re a good investment considering how many sketchy service companies are out there. I’ve found many of them! 😞

[@antoniolaracuente437]

that's what I'm saying he gets all these tools for free I can't afford them

[@sawdust85222]

@@antoniolaracuente437 Not to be a jerk but it makes zero deference how a persons acquires the tools. If you don't have the tools, how do you expect to do the job?

[@raymondperez8182]

@@sawdust85222 you don’t need a scale or those clamps . That’s extra gadget shit you get when you get money but every technician starts off with his basic gauge set

[@sawdust85222]

@@raymondperez8182 If you don't have the " extra gadget shit" how do you measure subcooling and superheated? Or how much refrigerant you're using? Or do those things not matter?

[@butlerstouchHVAC]

11:07 you add freon through the blue hose?

[@Cosmo95_]

When system is running yes.

[@stevee7774]

R Fortinay!!!

[@fabiodarocha2842]

I lost my EPA 608 certificate.Does anyone here knows how to obtain a copy ? I have searched EPA site to no avail.

[@kenshofalco8326]

So the 7.6 degree's subcooling on the condenser's tag is the minimum amount of subcooling needed. I have a question, I hope you read this. How many degree's difference should there be between ambient temps and condenser refrigerant temp? Or should this just be ignored?

[@DanO181919]

@ 8:33 it shows a target of 9.7 degree sub-cooling. You have a +\- 3 degree sub-cooling. It’s probably better to go over a little to allow for refrigerant loss due to connecting/disconnecting your gauges. You ask about CTOA (condensing temperature over ambient) it all depends on the unit. Rule of thumb is your older units have a 30 degree CTOA and the newer (high efficient) units could be as low as 15 degree CTOA.

[@kenshofalco8326]

@@DanO181919 Thank You. I thought it was 7.6... My bad!

[@kevinpearce3281]

So… why can’t I add r410a into the high side. Is it just because the pressure from the system is to high and it won’t come out of the bottle.

[@duganfr]

Yes. Pressure is higher than bottle.

[@krishnarajachuthan3660]

2

[@jerrellstrawn6409]

What is the name of the slider app you used?

[@gilbertotrevisan6538]

Danfos Reef Tools

[@jerrellstrawn6409]

@@gilbertotrevisan6538 Thanks.

[@sergiodoordie319]

I'm getting those gauges man

[@nidhisahu3579]

Pleas help

[@harh3101]

Please disregar my previous comment, that was for the add on glasses.

[@maziarkhanlari7279]

Why you enter liquid to system? We are suppose to inject vapor because of protecting compressor

[@marty2958]

R410A is a blend of refrigerants so to keep it whole you add as a liquid

[@caru3257]

R22 is supposed to go in as vapor but not R410A.

[@maziarkhanlari7279]

@@caru3257 Thanks a lot buddy

[@rafaetkhanrk6475]

I'm Air Conditioner maintenance technician from Bangladesh? I am interested to work with you please reply me.Presently HTMl is engaged in hotel management in Saudi Arabia. FROM TTES Air Conditioner maintenance

[@pana5075]

No se debe botar el gas refrigerante al ambiente y no es buena práctica de refrigeración hay otra forma para evitar la purga de gas

[@JoeSmith-um2sg]

Please make content with commerical RTUs! there is NOTHING good available

[@wadysrodriguez3756]

Sorry my friend lm dont know to much about the refrigeration but in my opinion you are think its so easy understund what ever you explain i say notI desaproval totally your video thanks

[@randybobandy9828]

That's a YOU problem.

[@wadysrodriguez3756]

@@randybobandy9828 no no it is not only my problem its your problem too because I talk you because its you have channel in you tube what its your grow? Thinking about that sorry if I botter to you

[@randybobandy9828]

@Wadys Rodriguez I can tell by the way you type that you have issues with the English language. This guy's videos are concise and easy to understand. You can't expect to know what he's talking about as a person who isn't familiar with HVAC. Like I said, it's a you problem.

[@randallwaters4273]

Let me help you...1st. The system wasn't low..you added refrigerant and made your suoerheat go down .if it's 77 inside you should have MORE suoerheat..if it gets a q10 inside and 101 outside ,you will have NO superheat putting the compressor in danger...suoerheat ensures 100 percent vapor..your coil temp was 35.too low..you wasted time and charged a homeowner to get minimal or no reward

[@acservicetechchannel]

This system had a TXV so we use subcooling to charge. Superheat is checked to make sure the TXV is operating properly. If you try to set these systems using superheat, they will get overcharged. On a system with a TXV, the indoor coil sat temp depends on the indoor air wb temp, thanks.

[@anthonylasassa9679]

Youre right with a warmer return temp youll have higher superheat even with a txv. Also forgot to mention why he's adding in the first place. If it's low, perform a leak search and repair the leak. But it's OK all of these home owners trying to charge their own units is gonna make us a lot of money when they end up having to call us anyway.

[@nidhisahu3579]

Hindi language sir

[@harh3101]

Why so much freaking lip service, I don't have the time nor the patience.Buzz off

[@randybobandy9828]

You're a bum