HVAC 042 A Gauges and hoses on and off the simplest way without contamination.

[@joesjhskates]

I’ve learned more from your teaching than I did in a college level Hvac classes and it’s not because I was slacking. You have a great way to make all the information understandable. 👍 I really like how you go over all the info from previous videos to really have it stick.

[@ParabellumX]

The fact that you purged your manifold lines properly and methodically (and the fact that I have OCD) has compelled me to start replicating this procedure. I am very thankful for you taking your time and producing this video; it has definitely improved my approach to purging my manifold gauges. Thanks. 😊

[@heatingairservices8708]

we learn everyday 37 yr in & i still learning ... but Purging air is an absolute must ..yes sir air out 100 % refer basic 101 in order to hook up ...esp if ya charge one

[@americanpie8059]

Shame on you Mr. Branaman, as you tell us not to lay the hoses down on the ground and you have the liquid line one laying on the ground! Just busting your chops, I really enjoy your videos. 22 years in HVAC and I know good and well how to hook up gauges to a unit, but you still have me watching your videos. And no sir, not to point things like my initial comment, but to learn. One can never know it all. Thanks for the great videos.

[@quickieswithscottechristie]

But I’m not an osha instructor.. priceless.. banged out 40 videos since last night. Great content thank you for helping me get my head back into the game. I have a much much much better understanding of the refrigeration cycle now. I appreciate your teaching style and I’m greatful for you taking your time to go back again and again to explain things again and again so it actually makes sense and sticks finally I’m actually retaining this knowledge ..

[@trentbulen3854]

I’m a lead installer this helps alot I just purchased brand new low loss hoses for my manifold

[@optionstraderman]

Another possibility is to use a core depressor between the connection point and the hose itself. That way you can connect your gauges with no loss of refrigerant, then turn the knob on the core depressors in until your gauges show the pressures. When done, unscrew the core depressors to allow the core to close up and seal the refrigerant into the system. Now all you have is the pressure in your hoses, and if you dump the liquid line into the manifold and allow it to pass into the low side line and enter the system slowly, it will pretty much empty your gauge set of refrigerant except for a tiny amount of vapor. Just thinking out loud here...

[@love2hvac]

Am am very much against bleeding back across the manifold. It is the main cuase of non condensate. I do use core depressions with probes but when training new people you need a simple way they require the fewest steps.

[@Shawn_hvacn_texn-sf9ix]

20 years I've never really thought about how I connected and disconnected the hoses! I've had pretty bad frostbite several times. I methodically and consciously use the two finger method now!

[@joehead1294]

Aha, takes me back to the good ole days when we just blew the charge to the atmosphere. Good idea on the valve caps putting them on the manifold. Never thought of that.

[@shannonhill3356]

Right?? Instantly adopting this practice it and suggesting next meeting

[@caleb2507]

@@shannonhill3356wish I knew about this 2 years ago lol. Better late than never. I’ll pass this on to all the folks that come in behind me for sure! Better to be tedious and safe/ right than easy and wrong.

[@scottcpan68]

Great tip on storing the caps on the gauge set.

[@tjam4229]

You can tell, this guy has huge amounts of common sense and logical thinking. People like this are a valuable source of useful information. Keep your mouth shut and listen when you are around people like this. I bet this guy is this way thru-out his life, not just with HVAC stuff. True type A personality folks! Love it.

[@KefirTView]

Damn, you teach well! Information packed on the simple task of connecting hoses.

[@SusiesRepeat]

Thanks very much, for someone just starting o learn HVAC this is priceless information.

[@MiguelHernandez-rw4xu]

Bar none, one of the best, easy to follow HVAC tutorials

[@lyndonlakhansingh]

I remove the high side hose first and feed the liquid through the gauge into the low side

[@love2hvac]

That is one way but the problem is contamination. In the center of the manifold and the yellow hose, there are contaminants, old oils, air, moisture, and others. To prevent the contamination you take the yellow hose off to eliminate its contamination. Then use a valve cap on the center port, leave the cap loose and purge the manifold, then tighten the cap. Then you can do the bleed across the manifold method. It's a lot of steps. Most units that end up with none condensible are from techs doing the bleed across the manifold method without purging. This method I presented is faster than that and less issue of contamination. It is a lot easier for new students to understand and grasp. Several years ago we had an instructor that never purged the manifolds. The units would always have noncondensable until we did recovery and vacuum and then they would run from again until he did his class. I watched the class to see what was happening and it was that. After 6 students were purged across the manifold, it was enough to change the system operation. After he started having the class do the method in the video the noncondensable issue was solved. A little contamination goes a long ways

[@f1reguy587]

Usually i would purge the high side back into the low side, my hoses have an isolator on them, which is the same as the valve on yours, but when disconnected, under negative pressure, theres no chance of pulling air into the system. Another way which isnt practiced often is to shut the liquid line and pull it down to a lower pressure before disconnecting, then reopen the valve, plus it gives an opportunity to check the seals are still good.

[@raidone7413]

Smart

[@levlast6970]

I am with you on running the gas back through suction side, first time I have seen this method. I will try it first then give an opinion, maybe it's a better way

[@kemonbannister3405]

Keep up the great work!!!!!!! I’m ready for the air flow session now.

[@danielscheib119]

I fucked up the 2 times I ever touched gauges, got a pretty nasty burn the second time. This is a good video to help me see how it's supposed to be done

[@optionstraderman]

Just curious, why not take the high side off first, the open the valves to allow the liquid line hose contents to be sucked through your gauge set manifold into the low side hose and back into the system?? Saves time and multiple connects and disconnects where you can lose refrigerant every time... Just thinking out loud here

[@joebal9044]

Just a reminder for those not familiar with HVAC, when the system is off, the low and high side have equal pressure, You are more likely to leak refrigerant when the system is running, especially on the high side. I like using hoses with ball valves so I can shut off the high side, dump the refrig into the low side, before I detach any hoses.

[@garyjohnson679]

Glad to see you're working on ICP yeah yeah that's my brand

[@love2hvac]

I work on everything, I have no loyalty anymore.

[@markm0000]

If you have ball valve ends you can get that liquid out of the high side in a few seconds through the manifold.

[@love2hvac]

I much prefer the ball valves and show that option too.

[@alphabears6342]

Could keep the low pressure suction line attached and disconnect the high pressure first and open the high side and low side valves on the manifold to purge the liquid from the high side to the low side back to the suction line?

[@love2hvac]

That is the way many were trained. The issue is contamination. Bleeding threw the manifold pushed contamination into the system. When doing vacuum and recovery is the best time since the manifold and center hose already purged.

[@mikec555555]

If the system was off like you said and the system equalized with low and high side having the same pressure, then why did refrigerant spray out the high side and not even a sound was made when connecting to the low side?

[@Lemonades1321]

Silly question. How do you clean the hoses , vacuum, nitrogen or both? Just wondering about the hoses. Thank you anyone can answer. I appreciate it

[@Tj-mb7ch]

When you first started, there was air in your manifold. Don't you need to purge this first? When you hooked up to the high side to dump refrigerant back in, didn't that air now go into the system?

[@scribbles1940]

If you have ball valves you can also just open the manifold and close the ball valve on the liquid line to bring the manifold to your suction side pressure.

[@love2hvac]

That method is called bleeding across the manifold. The problem with that method is contamination. All the contaminants, moisture, oils, oxygen, nitrogen or past refrigerants get pushed into the system. The high pressure pushes it in on its way to the low pressure side. The solution is the method in the video, or having to purge the yellow hose that's more refrigerant loss and no guarantee to remove moisture.

[@EZ_man_86]

Keep Rollin out the great content!

[@shannonhill3356]

This was a great video - I especially like the valve cap idea - but why not equalize the high through the low before disconnecting low? This is my preferred method for true dominimus loss - but more importantly because in Florida some of these systems can only take 12’ of hose loss a few times. I’m curious as to why you did the swap method over this as I’m sure there’s a valid reason I’m missing…

[@love2hvac]

Thanks, In the playlist I demonstrate several methods. This method has several benefits. I realize it is different and sometimes different is met with opposition. I believe I compare the methods in another video but let's go through them here. #1 new students/apprentices When students and apprentices first get to a unit they are overwhelmed by everything. They are nervous and uneasy. We want them to be able to check "pressures" without injury themselves, quickly and without contamination. Something as simple as opening and closing valves alone can be a big challenge to new students. You have no idea how many think they have to open a valve just to get a reading, no matter how many time you tell them. Other times students get burned with liquid refrigerant because they open a valve and liquid comes out because they did not bleed it in correctly. #2 Contamination. I digital probes or gauges without hoses at all. The more hose, the higher the chance for contamination. When someone bleeds across the manifold and they don't properly bleed the center of the manifold with a cap they are pushing contaminants into the system every time. That is magnified when they leave the center hose attached. I found that the lab units would often become contaminated after a few classes just attacking and teaching gauges. When we implemented this procedure, we no longer had confirmation issues after just checking "pressures". By simply switching hoses there was no more contamination from the high pressure pushing contaminants into the low pressure. #3 repetition. It gives them more time getting the student comfortable taking hoses in and off with the 2 finger method. #4 it's faster and less loss. By the time every class tries to purge the manifold or the service hose they had less time getting the "pressures" of multiple units, less time getting comfortable with the hoses and much more confusion and second guessing and loss of refrigerant filling up the lab. Switching the hoses is just faster than PROPERLY bleeding across the manifold. #5 we eventually teach bleeding across the manifold. Once we get to the point they are comfortable charging or recovering they get the manifold valves down. The center hose and the manifold will already be purged At this point bleeding across the manifold is faster, so we implement it at that point. Hopefully that makes sense. Give it a try yourself but the bigger picture is ditch the manifold go with probes digital or analogue for a win win. You can still charge and recover without a manifold.

[@shannonhill3356]

@@love2hvac two things: I had no idea this was Ty Branamen’s channel so wow what a small world I’ve seen you with Brian Orr quite a few times. Awesome stuff learned a lot. Two) I was thinking after I commented about the center of the manifold itself, and that is a good point, though somewhere along the way of my 4years I began purging my high side THROUGH the manifold (through the refrigerant hose, closing as valve at end of hose to suck back as much as possible) and I forgot to mention that. But yes, absolutely agree with those points in full.

[@d-s-ll2378]

Good, delicate explanation, great job!

[@Boojyman]

De Minimis Releases means a Release that does not violate applicable law, is not required under applicable law to be reported to a Governmental Authority and for which no remediation is required under applicable law (with all references to applicable law herein to include all Environmental Laws). Sample 2. This guy is gold lol 👌

[@mackenziegray2090]

Take the liquid side or the high side off first. Then open up both valves on your gauges and the suction will pull the rest back in.

[@love2hvac]

The problem is a lot of techs contaminate systems doing this. The non condensables or other refrigerants left in the middle get pushed into the system. Even if you purge the yellow hose there is what's left in the manifold itself. You have to purge from the suction side through the end of the service hose and again the liquid side. That also does not get rid of moisture stuck to the sides. This method takes less time, less likely to cause contamination, and easier for new techs to understand.

[@gsmacka96]

​@@love2hvac practice makes proficiency not perfect, you could have been doing it wrong perfectly the whole time. Im learning so much through your videos.

[@wasimedoo7994]

Very good information what is the made of the Gage

[@samersarah957]

When you connected the high side hose to low side to return the liquid refrigerant to the system the hose will get some air back to the system so should bleed it or what? Thanks.🌷

[@love2hvac]

With the auto low loss fittings the hose is still fill of liquid all the way to the fitting. When you connect it to the unit there will still be that little spray off the pressure coming out. That displaces the little bit of air . It's much much less than what is in-between the manifold and what's in the service hose.

[@giiodude]

2:55 I wouldn’t suggest twisting the hose to tighten the cap, that’s how you damage your gasket. You mentioned the fitting needing to be rebuilt, that’s probably a factor.

[@joesjhskates]

Quick question, why do you put the left over refrigerant in the high side line back through the suction side I thought you don’t want liquid refrigerant going to the compressor?

[@love2hvac]

I realize it is different but its ensures there is no contamination and it is a fast way. The liquid enters at a small enough amount that it flashes to a vapor before it enters the compressor. that is why it is important to have the compressor running when doing it. HVAC 042B part2 explains this kzbin.info/www/bejne/kIG2kKmPaZyMY68

[@Arandomwoman]

Hello. My air conditioner unit requires a refrigerant (R-22) line of 3/8 and the suction size of 3/4. Could the hoses in this video be used as is or do I need something to help connect the hoses to both lines? If I use another refrigerant like propane, does this change what my unit's charging necessities? Thank you.

[@-mejor-que-nostradamus-6152]

Are Located In Florida ??? What is Better And Cheap For The Electric Bill, The Inverter Mini Split For Complete House For Each Room Or The Central Air Conditioner ??? Thank You.

[@love2hvac]

I work all over the USA. I have lived in Florida before and consult there often. Before we get to that answer... Before you consider a new system you need to take a look at the home itself. I recommend paying to have some test ran first. #1 is a blower door test. This will show how leaky the house is. This is extremely important especially in Florida! It does not good to cool the house if moisture is moving in through the walls and the house feels sticky. If the house is sealed up first, then you won't need as big of a system and it will dehumidify better, reduce drafts and stratification and provide more comfort. Ideally they will do a duct blast to see how bad the ductwork is leaking too. After that is done and any repairs made to improve the home you can use the new blower dore number with a heat load calculation called ACCA Manual J. This will give a proper size for the home. Remember bigger is NOT better, it actually makes humidity worse, comfort worse and uses a lot more energy. From there they can do an ACCA manual S to determine the correct unit to fit the heat load. A ton is not a ton anymore. The system needs to be capacity matched to the unit. Some units sensibly cool more but dehumidify less. While others dehumidify better but don't have as high of a seer rating. The installation of the equipment is going to be very important. The installation is more important than the brand. Inverter equipment can be in . Ulti zone ductless or in traditional ac. It has a variable capacity that allows the compressor to slow to match the load. Some people like it for better comfort others say the parts and repairs cost more. Both are correct. Either way have a surge protector. I prefer the ICM-493 surge protector, it also protects from low voltage that's known to happen in Florida. Now a mini split for each room. I really like this but it has a few drawbacks. #1 they don't make them small enough for most rooms so they end up being oversized. #2 because of #1 they don't dehumidify as well. (That's a big deal in Florida) #3 in a humid climate the evaporator coils can develop growth and can have drain issues that can damage walls when they overflow. Kinda a problem in Florida. Not an issue in Las Vegas. If your in South Florida look for a company called Comfort Dynamics Inc. Genry Garcia is too level at whole home solutions. He can do all the design with and testing. If you're in central Florida look for Kalos services. Good luck!

[@crumby731]

I’ve heard of people pulling a vacuum on their new set of gauges so the air in the hoses don’t get into the system should I do this with my new set ??

[@love2hvac]

It won't hurt, better yet go wireless bribes and you don't need hoses

[@henny1387]

Mr. Branaman, you said you couldn't get liquid into the compressor but in this video, you are adding liquid back in the vapor line wouldn't that end up in the compressor? also, how are you turning the system on and off sorry I'm a slow learner

[@samersarah957]

Hello Branaman, if we add some refrigerant to the manifold gauge then hooked up to the system in this case we will not loose any refrigerant when hooked the gauge, I don’t know if that’s right or not. Thanks.

[@love2hvac]

That's true but what would you do with the extra refrigerant when your done?

[@KenMagee]

I noticed something....after you hooked up and went over the readings, you mentioned taking the hoses back off and stabbed the hook into the grate without bringing it back through. ;-) Regardless, great video as always Ty!

[@love2hvac]

Very well done! That means your thinking processing and applying.👍 I was really hoping nobody would notice that 😆😆😆

[@tjam4229]

The old saying goes: "Do as I SAY, not as I DO" ;-)

[@jpechacek80]

Some other videos say you should purge the air out of the hoses hoses when connecting them. Is this necessary?

[@love2hvac]

Yes for the first time and between different refregerant. However if your working with only 410a all day, there is no need to purge every time.

[@Dutchlincoln]

would it not be easy to have both hoses connected, then disconnect hp side, oven the valves, and have suction drain both, instead of loosening and fastening suction?

[@love2hvac]

Thes bestethod is to use probes, no hoses at all. By opening the vales you will introduce more contaminants into the system. Everything in the middle of the manifold and some of the contaminants of the service hose gets pushed into the system. So the belles across the manifold you have to remove the service hose, and purge the manifold. By the time you do that, the method shown in the video is faster. The method of bleeding across the manifold is the main reason non condensate end up in the system. I realize this way is different but it's simpler for new techs, reduces contamination from everyone and its really fast. How we it still does not beat hosless probes.

[@fromanabe8639]

What is that other copper line coming down from the electrical connection box?

[@love2hvac]

It's protecting the thermostat wire. Each end is flaired. It's an old school method, not as good as flex conduit

[@roberts1159]

Great advice. Question, when the unit is off and you had roughly equal pressures does it matter if you have a piston or TXV ?

[@love2hvac]

This method dosen't work with the unit off and equalized pressure so it would not mater which metering device.

[@garyhorvath2957]

Hi Ty, do you have any video's on condensate drain's??? Thanks.

[@love2hvac]

Its on the road map. I have not got there yet

[@garyhorvath2957]

@@love2hvac I still have access to the NTI video, watched it about 50 times, I have a service call today where the secondary is filling up. I think im just over analyzing. Lol

[@chica_dog]

@@garyhorvath2957 comes down to 1 stopped up line, broken line/pan, trap too small or duct too restricted.

[@garyhorvath2957]

@@chica_dog When I got there they actually had all of them tied in together draining out of the secondary pan. There was a trap, at a 45° angle, I sent my boss a pic and all he can say was "Yikes" 😂😂😂

[@shine-cg9uf]

Great video. Never saw or thought about putting hi side hose on low side to put gas back in, very cool. Do u have a video explaining tonnage n hp ? I work on walkin coolers/freezers n reach-ins. Trying to get a better understanding of how to size up fd, txv, solenoid valves. For example 1hp in refrigeration is 4000 btu but on ac 1hp is 12000btu. Thanks for sharing 👍

[@love2hvac]

Eventually I will get to the refregeration portion. It's great that you already get the different HP vs ton. I know instructors that don't even get that. I will do a video on that sooner or later. Great recommendation, thank you!

[@shine-cg9uf]

@@love2hvac thanks. Correction 1hp low temp refrigeration 4000 btu. 1hp med temp 8000 for refrigeration. New to the trade trying to absorb as much as I can.

[@pingpong9656]

With the unit running during disconnect, is there not a risk of sucking in air on low side?

[@love2hvac]

Not with this method. The suction side is still under pressure so it's not going to pull air in.

[@blakethesnake1555]

I learned a couple things. Well done. My question is you never purged your gauges during hookup. So potentially introduced non condensibles .. correct me if I’m wrong. Overall excellent tutorial thanks

[@love2hvac]

If your staying with the same refregerant there is no need to pruge. There will be residual refrigerant in the hose. However if changing between refrigerant purging is absolutely necessary. I think I cover that later in the series. Early on I leave the purging of the hoses out as students have a high potential of letting too much out and causing safety issues in the labs with new students. I take students in the lab and we spend 30 minutes to an hour just putting the hoses on and off the equiemt so they get familiar with it. Oh the things I have seen in labs! No purging for new students. Yes purging between refrigerants. Use wireless, hoseless, probes and it's a non issue all together!

[@taephillips3276]

@@love2hvac air counts as a contaminant purging matter

[@love2hvac]

If air does not enter the hose and there is always positive pressure on the hose from refrigerant, then the contaminant air cannot get into the hose.

[@Pretzel114]

Great content! Keep it coming sir!

[@Yusuf_hashim]

One question though, I thought the suction line was only vapor, but you put the liquid from the liquid line into the suction. Can someone explain this to me as thought the suction goes directly to the compressor

[@walterkubiak]

I am totally new to this and was puzzled by it too. I could be wrong, but I believe you release high pressure sub-cooled liquid into low pressure superheated vapor suction line, and the liquid would turn into vapor instantly once out of that high pressure hose. The low pressure is the key. Please correct if I am wrong.

[@love2hvac]

You are correct

[@Yusuf_hashim]

@@walterkubiak ohhh, this makes sense. Thanks brother. Does this mean it’s possible to charge liquid in suction line without damaging compressor?

[@love2hvac]

Yes, but you have to throttle it in. Small amounts at a time. I have a video in this play list showing that procedure.

[@bleccy9117]

i’m fairly new to hvac and as i was riding along with a coworker of mine (who has no low loss fittings), put on high side and got a good 6 seconds of refrigerant on my index finger and got a nasty blister. i’m now a little scared of screwing high sides even with low loss fittings. It’s all trial and error though

[@BrantleyIAQ]

I’m a newbie with a manifold so forgive me if my intuitive is wrong but, when disconnecting, can’t you just leave the low side connected, disconnect the high side and run the excess liquid line refrigerant through the manifold to go back into the low side?

[@love2hvac]

I included that method in this series, the big issue with that is contamination and purging. It's difficult to purge the manifold and few people purge the yellow hose. Then when they bleed it across the manifold, it pushes contaminants and moisture into the system. This leads to non condensables and moistures that leads to acid and copper plating. While this method is much different than the norm it's actually faster then purging and bleeding across, it's less likely to introduce non condensibles, and it's simpler for new techs just learning vs trying to what hose to open and close and when. Nowadays I just prefer everyone using digital probes,. No hoses so it's not an issue at all either way.

[@BrantleyIAQ]

@@love2hvac Thanks for the detailed response! That definitely makes way more sense. I’m a mechanical engineering student and I do building forensics so I don’t even need to add or remove refrigerant, I will only ever need to diagnose systems. For that reason, I certainly plan to get the digital field piece gauges. I went with a full manifold because I didn’t wanna be that guy telling HVAC contractors what to do without getting my hands dirty and really learning the field equipment. Idk if that makes sense lol.

[@1marcelfilms]

i watch these videos because classes cost almost 3k

[@love2hvac]

I make these videos because schools are saddling students with debt without providing the relevant training.

[@jimmyjohns314]

This is going on a FLASHCARDS THANK YOUU# ranken STUDENT

[@love2hvac]

Start the Learn HVAC playlist in sequential order here kzbin.info/aero/PLc7QlzR-srBgknwzlXjoESxNbzHQJ-TIq

[@clevc112]

Never use the hose to help tighten the connection. Tighten until snug against the gasket. Over tightening will absolutely damage the gasket.

[@love2hvac]

That is a good point. With new students the biggest issue is they don't tighten it enough, they are afraid of it. They they say sir I'm not reading any pressure on this unit.

[@taephillips3276]

Refrigerant Caps go on the disconnect for me just a preference

[@yorkrojas1452]

Thanks!!!

[@llampallas66]

Good Job ty

[@vicentelopezlopez3109]

Just switch the yellow hose for the red one new low loss fitting

[@EdwinBeemsterboer]

You make the misstakes that you just say we no shut do and you do it, like the hook and put the hose on the ground, why you not empty the set in the system when your bluehose is still connected??

[@love2hvac]

Everyone makes mistakes. The reason for moving the hose is to prevent contamination from the air moisture and existing refregerant that's trapped in the manifold and center hose.

[@clevc112]

I never remove lines while running. I ball Valve off the high side and transfer it to the low side until the high and low side pressures equalize. Then shut down and remove all hoses with very very little Vapor loss.

[@love2hvac]

The catch with that is getting the unknown stuff out of the manifold and the center hose. Otherwise the high pressure pushes all that moisture, other refregersnts, other oils and on condensible right into the unit. This is especially difficult for a greenhorn to understand. It's easier when starting out to keep it as simple as possible until they are comfortable with it. It's also faster than bleeding the center manifold and such and it keeps the system clean. I'd you notice the videos after this cover other methods for removing the gauges.

[@jennyleung6537]

thank you sir.

[@iamstargazer9320]

Why didn't you leave your gauges on and just use the vavles on you guages to reintroduce the liquid into the suction line?

[@love2hvac]

Great question, the next video I do this. The main reason is contamination. What is in the yellow hose? what is in the manifold? Oils from other units, moisture, acids, air, other refregerants. It has to be purged. Stay tuned for the explanation.

[@brandonkisor3375]

decent info video- but they are not valve caps they are service port caps

[@love2hvac]

That is correct thanks for the correct notation.

[@mr.orim0782]

2 fingers FTW!

[@pauljamilkowski3672]

I have been told that putting liquid refrigerant into the suction line can damage the compressor…

[@markm0000]

That is true but it's less likely to happen with a schrader valve in place to cause a pressure drop. Still, not the best practice. I have ball valves at the end of all my hoses and it makes it so much easier. If you crack open the high side valve on the manifold it will flash all of the liquid to vapor and the compressor will safely suck it out through the low side hose. If you don't have something connected to the service hose it will blow out pressure so that's why I have a extra ball valve to hold pressure. It's also nice when the refrigerant tank runs out you can just close the valve and swap tanks quickly with a little purge instead of having to purge the entire service hose every time.

[@cDisturbed.]

Bro vented refrigerant 💀

[@love2hvac]

D- Minimus

[@heatingairservices8708]

low fitting are great the bigger or Org ones ...lot units like goodman & few others dont leave ya that much finger room to tighten hoses ... man what 1/4" space would do but costs to much & or engineers must not do service on there own product lol

[@fredypadilu]

Of course I'm watching this video the day I got 2nd degree burn in both hands

[@justinrichard4190]

why not just take the red hose off, open red then open blue and suck everything back in then remove blue?

[@love2hvac]

#1 contamination #2 time #3 simplicity for new students. I realize this is different that they way many where taught it different does not mean wrong. People are quick to pic out the way they have always done something but reluctant to try a new way. When you bleed across the manifold you pushed all the moisture and contaminants from the manifold and the yellow hose into the system. By the time you spend all the time purging all those points, you will find the way in the video is faster with less refrigerant loss and minimum contamination. In the training labs we had constant problems with non condensables. After we implemented this method the non condensble issue went away. Imaging how many systems are contaminated the same way in the field. New students are often overlooked by the steps of just checking pressures. Wich knob to open Wich to close and they have issues opening the wrong hose getting frist bite it dumping liquid into the suction slugging compressors. By simplifying these stems of just moving the liquid hose to the suction side it makes things simpler easier and safer for them. Later in this playlist list, I also show bleeding back across the manifold with purging and show how it's the best methodafter charging a system then the service hose had already been purged and refrigerant in use.

[@wortwortwort117]

I'm new and learning but I have this strange fear of putting on the lines.

[@love2hvac]

Many students have this same fear. In class I spend over an hour with students taking turns rotating around just putting them in and taking them off. Then we do it again the next day. I do this repetition to build motor skills and get students comfortable. In time things will get easier and then new things will need to be learned.

[@wortwortwort117]

@@love2hvac that helps alot I wasn't sure if it was just me or something. Thank you for the video also.

[@aldoo7972]

Don't like being clever, but why don't you use special refrigerant pullers? At once I froze my palms, after all I drastically change my views on safeness. Here you are a sumb and subscribe.

[@love2hvac]

This is my I push the 2 fingers method so strictly. I have the class do that exercise over and over until everyone does it without thinking. People naturally want to grab the hose in their hand. That is dangerous and that will sooner or later directly lead to frost bite in the palm of your hand. As for safety this is what your suppose to use, Butly gloves, chemical resistant tonthe liquid refregerant won't absorb into it. www.amazon.com/Rubber-Gloves-Chemical-Reisistant-Medium/dp/B08T74QTHP/ref=mp_s_a_1_6?dchild=1&keywords=butyl+rubber+gloves&qid=1631256689&sr=8-6 I'm not sure what you mean by refergerant pullers.

[@nightone9720]

No wonder that high side port was all oily lol

[@LB7Amoney]

Wher

[@recoolit13]

3:30

[@wasimedoo7994]

Very good that is your assistance past by there😊

[@love2hvac]

That cat has no fear 😂