Ай бұрын
Ай бұрын
2 ай бұрын
2 ай бұрын
4 ай бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
2 жыл бұрын
2 жыл бұрын
3 жыл бұрын
3 жыл бұрын
3 жыл бұрын
3 жыл бұрын
3 жыл бұрын
4 жыл бұрын
Пікірлер
@gustavoinsoluperez_218 56 минут бұрын
Thank you Sir Julio, for sharing your kwnoledges. To check the rotary hermetic compressor can it be done in same way or is it another procedure
@humbertomacias3239 Күн бұрын
Amazing lesson, thank you.
@jittipatkeawdee8656 5 күн бұрын
Thans❤❤❤❤❤
@AirConAcademy 5 күн бұрын
I am glad you liked the video. And thank you for watching!
@mashed-out 14 күн бұрын
I just pull the fuse and put a bolt its place, then hit the main and watch until I see smoke and flames...then I got the spot!
@AirConAcademy 8 күн бұрын
Ha ha ha! Yes! That will usually show you where the problem is. It is one of those one way troubleshooting ways and sometimes there is no coming back from there lol thanks a lot that was great! And thank you for watching!
@SMOKEY-JAYS-DIESEL 16 күн бұрын
Hey brother, I just worked on a bus with a '05G compressor. It runs on r134a There are two valves located on it. Do you know if they need to be turned all the way in for it to be open or do they need to be turned all the way out for it to be open? And also what should be the running pressure at 100° f? The charts do not make sense because I compare it with other r134a compressors on smaller vehicles and they are way different? The '05g compressor is running at 70 psi on the low suction side and 225 on the high side at 100° f
@AirConAcademy 16 күн бұрын
The two valves you are talking about are they suction service valve and the discharge service valve. Those valves need to be opened all the way to where it is called back seated. When they are all the way to the back, you will not have access, or you will not be able to read precious when you hook up gauges. If you want to pressures at the compressor then, they should be with the mid position or cracked. That means that they are off of the backseat. If you close the valves completely, then they are considered front seated, and the compressor will not run because there will be no flow of refrigerant through it. Those pressures are giving me seem to be pretty close. Do you have a site glass anywhere on the liquid line or on the receiver/dryer? Do you want to make sure you have enough subcooling and with the bus running a different speed your pressures are going to change. As the bus speeds up the engine wraps up, which is going to turn that compressor faster and change your pressures. So you need to make sure you have sub cooling coming out of the condenser. Usually there's a site glass somewhere so you can make sure you have a full color of liquid going to the metering device. I hope this answers your question. Good luck and thank you for watching!
@SMOKEY-JAYS-DIESEL 16 күн бұрын
@@AirConAcademy awesome man! I really appreciate you explaining this to me because this compressor is totally different from a regular little automobile compressor being that this '05g has six Pistons I will make a video of the RPMs of it running and show you the gauge pressures. I noticed the high pressure gauge was bouncing?
@AirConAcademy 8 күн бұрын
@@SMOKEY-JAYS-DIESEL great! If you do that, I would love to see it! You can send it to me to my email address. [email protected]
@AymenFerr 18 күн бұрын
Tnx for sharing knowledge My compressors won't go 2nd and 3rd stage any ideas?
@AirConAcademy 18 күн бұрын
The unloaders on some manufacturers are energized for them to be loaded and on others they have to be de-energized, or another words no power going to them for them to be loaded and doing work. Depending on the age of the unit like an older units, they could be controlled through the thermostat. Then they were controlled through a Honeywell controller and these days they're controlled through circuit boards or computers that control the building temperature. I would start by looking at the schematic and see where the wires go to from the unloaders that are on the compressor. By tracing them back, you can see what is turning them on and off. I wish I could give you more information, but if they're not loading at the moment, you could check to see if they have voltage going to the unloader if they do, you can undo the voltage wires in that should load it up. And you could run it temporarily until you figure out how they are being turned on and off. Hope this helps! Thank you for watching. If you have any other questions, please shoot them my way!
@miamiholliwoodmiamiholliwo9192 19 күн бұрын
Thanks, you answered my questions before I ask them. Nice video like always.
@AirConAcademy 19 күн бұрын
Thank you! I'm glad I could do that and thank you so much for watching!
@tonguescum5137 23 күн бұрын
nananananana BATMAN!
@carlosalas806 23 күн бұрын
Thank you so much for detailed and easy to understand explanation. Keep it up.
@AirConAcademy 19 күн бұрын
Thank you! I'm glad you like the video and I hope that it helps you out there! Thank you for watching!
@manishgupta-ff4oj 28 күн бұрын
Thank you sir
@AirConAcademy 28 күн бұрын
I'm glad you liked the video and thank you for watching! Check out my other videos!
@mat.5211 28 күн бұрын
Best of all time ....thanks.
@AirConAcademy 28 күн бұрын
Wow! Thank you so much for the kind words. I'm glad you enjoyed the video and thank you for watching!
@miamiholliwoodmiamiholliwo9192 29 күн бұрын
Thank you for video. Smart method to write on this type of board, also you can improve it by wearing white T-shirt. Thanks for great explanation!
@AirConAcademy 28 күн бұрын
Thank you for the kind words! And thank you for the idea! I never thought about wearing a white T-shirt. I have noticed that the writing is hard to see because of the different color shirts that I wear. But it white one would work out great! Thank you! And thank you for watching!
@jameszampetti36 Ай бұрын
Great job Captain! 🫡
@AirConAcademy 29 күн бұрын
I'm glad you like the video, and thank you for watching!
@NelsonLukwago-hr4vw Ай бұрын
Wow thanks so much😊
@AirConAcademy 29 күн бұрын
I think this is something that most people do not see an interesting to show! Thank you, and thank you for watching.
@emiliobortolotti7785 Ай бұрын
How do you ascertain the saturated temp therefore latent heat in a room that the evaporator has to deal with.
@AirConAcademy 29 күн бұрын
I am not quite sure what you're asking. But I hope this helps. We would like the evaporator to be approximately at 40°F. Because of that the suction pressure when you look it up in the PT chart should be very close to 40° we are absorbing sensible and latent heat in the evaporator. Heat is heat whether it is sensible or latent heat. This heat will be absorbed by the refrigerant and evaporator and that is going to make the refrigerant boil at a specific rate. The evaporator is designed to absorb a specific amount of heat with a specific amount of airflow, and the combination of the two will give us the correct amount of gas, leaving the evaporator. The evaporator is going to absorb this heat from the air and the more humidity you have the more dehumidification it is going to do, less humidity the more temperature difference you are going to see. I hope this helps and I hope this answers your question. If it does not, please feel free to send me another message. And thank you for watching!
@moy6569 Ай бұрын
This was a great explanation bro. Thank you.
@AirConAcademy 29 күн бұрын
Thank you! I'm glad you liked the video and thank you for watching!
@Visible-2U Ай бұрын
Great explanation
@AirConAcademy Ай бұрын
Thank you so much! Thank you for watching!
@NROhvac Ай бұрын
Best video on VRF, thank you
@AirConAcademy Ай бұрын
Thank you so much! Very kind of you and thank you for watching!
@hvac8826 Ай бұрын
Love your explanation ❤
@AirConAcademy Ай бұрын
Thank you so much for your kind words! I'm glad you like the video and thank you for watching!
@samortiz2890 Ай бұрын
Ok
@AirConAcademy Ай бұрын
Thank you for acknowledging my course!
@Yourengineeringstandpt Ай бұрын
Turn up volume when you tape for people that don't have loud phones thank you sir
@AirConAcademy Ай бұрын
Hello @Yourengineeringstandpt! Thank you for your comment, I will try to adjust the volume. Hope to see you in my class.
@ergarzavala2330 Ай бұрын
Hi
@AirConAcademy Ай бұрын
Hello! Hope to see you in my class.
@marinerkhan1 Ай бұрын
Thanks for the information and same time I have a question. If we were to replace a whole compressor with the one that burnt out, do we need to know the reason for the burn out. I understand we need to flush the whole system for acid but now a new compressor replaces the old one. I would try to find the reason only if I have to replace the motor in the compressor or the bearings but if I am completely replacing the whole compressor then is there any need to know the reason for burnout ? Thanks
@AirConAcademy Ай бұрын
You should always try to find the reason for the failure. But because of what you are commenting on here, are you replacing an open compressor? Because typically when you replace the compressor, you are already replacing the motor that runs the compressor. On an open compressor, the motor is not in contact with the refrigerant. There is acid in the system. The acid will travel with oil and affect Motor. If the reason you are replacing, the compressor is because of broken parts inside of the compressor, it could be that you have floodback. You're getting liquid back to the compressor in which case if you do not find out the reason for the failure, the new compressor is going to fail really soon. So yes, you should always find out the reason for the failure and if you have acid in the system, you need to neutralize the acid. Flushing the system, or I should say the lines with a cleaning agent and nitrogen might not be enough. You need to put some acid away or some kind of neutralizer hope this answers your question. I hope you find out why the compressors keep failing good luck and thank you for watching!
@alwysrite Ай бұрын
one of the best trainers I have seen
@AirConAcademy Ай бұрын
wow!!!! Thank you so much! I love doing this and I enjoy it and because of my experience I think I can make it easy for you guys to understand what I'm talking about. Thank you for your kind words and thank you for watching!
@billsmallwood3933 Ай бұрын
Thanks so much for the tutorial. I wish I had access to the books you got your knowledge from
@AirConAcademy Ай бұрын
You're very welcome! Books? Well let me tell you most of this I have learned from being out in the field and working. Yes I have taken several courses and I have gone to several classes, but most of this comes from putting all of those little bits of information together, condensing it and putting it out for you guys! I'm glad you enjoyed the video and thank you for watching!
@jamesrothwell1738 Ай бұрын
Yeah, the “recycling center” lol
@AirConAcademy Ай бұрын
Absolutely! We need to take it to the recycling center a lot of times. Thank you for watching!
@jamesrothwell1738 Ай бұрын
Many freezers run -10° coil temp
@AirConAcademy Ай бұрын
Yes! Absolutely correct. Like I tell people in class, all of the components are the same and they will fail for the same reasons. By adjusting the pressure we can change the temperatures. So yes, some phrases that run at -10°F and some refrigerators for candy and flowers run higher than your typical air conditioning evaporator coil. Maybe I should do another video talking about different temperatures and pressures. You just gave me an idea. Thank you so much! And thank you for watching!
@alwysrite Ай бұрын
why is the filter drier called a "drier" ? surely there would never be moisture in the refrigerant ?
@AirConAcademy Ай бұрын
Good question! This is why I'm having a webinar on the 16th. It is important to purge the hoses when you hook up gauges to a system. A lot of technicians will not have low loss fittings although the EPA recommends that everyone uses low loss fittings. When this happens moisture can be introduced to the system. And also when people do not pull a good vacuum, meaning that they are not using a micron gauge or pulling down to 500 µm. sometimes says technicians we forget proper procedures and we make mistakes. Thank you for your comment and thank you for watching!
@anthonylosego Ай бұрын
You might even have to wait an hour, pull vacuum again, wait an hour and do it a third time if you know the system doesn't leak (the lubricants can hold a lot of refrigerant). However, if you have a leak on the system, you might be pulling air/contamination into the system. So if you KNOW you have a leak, don't pull more than one time and only down to slightly above outside air pressure. Or you'll suck air into the leak. Blow nitrogen through the system (best to disconnect the recovery machine first, just in case) and then fix the leak. In the case you are doing a repair, you'll probably want to put the refrigerant back into the system after repairs are done. Sucking air into the recovery machine, in this case, would be bad. In that case, you'd want to recycle the tank and put virgin refrigerant into the system once repairs are done. Ideally, with a leaky system, you don't let the pressure be higher outside from the system to prevent contamination. A pressurized system above outside air pressure will leak outwards only. Lower than outside air pressure will let air/moisture leak into the system. As a side note, you can put refrigerant back into the system it came out of, but regulations allow no other option but recycling. I had to do this with a unit that a reseller sold me that was no longer compatible between the condenser and air handler due to a software upgrade. They hadn't updated their catalog to reflect this. And sold the package that would not work together. This was a microcontroller software controlled system. In fact, I think they are still selling the combo. BTW, it's still working great today with the new (and correct) air handler. Best to check with the manufacturer before you buy a combo package from a reseller. 😞
@AirConAcademy Ай бұрын
Thank you! You bring up a lot of good points. Specially about the leaks and pulling air noncondensibles back into the system. As you will know, there is so much that there is to say what video says for training purposes, this is only talking about recovering the refrigerant from the system. Maybe I will make another video where I go into all of the things you might want to look for before you actually start recovering. It is always good to hear from guys out there that are experienced. Thank you for watching and thank you for your comments!
@alwysrite Ай бұрын
you are so good at explaining - make it so simple to learn and understand !
@AirConAcademy Ай бұрын
Thank you! Thank you for your kind words and yes, I enjoy doing this and getting the information out to guys that are getting started. Thank you for watching!
@kennethlobo4420 Ай бұрын
Thank U for this Video Sir.
@AirConAcademy Ай бұрын
You are very welcome! And thank you for your comments. Thank you for watching. I'm so glad you enjoyed the video.
@zemhrethagos2575 Ай бұрын
❤
@AirConAcademy Ай бұрын
thank you!!! And thank you for watching!
@musakavalci9470 Ай бұрын
Great video. Thanks
@AirConAcademy Ай бұрын
Thank you! A refresher or reminder to keep everyone out there sharp! Thank you for watching!
@richlikeg3722 Ай бұрын
This is only if it has a receiver?
@AirConAcademy Ай бұрын
Yes, this way we can push the liquid refrigerant out of the receiver and into the recovery bottle. Just a refresher, especially for the guys that are getting started out there. Thank you for watching!
@papapapist Ай бұрын
Saved for the memory bank. Thanks
@AirConAcademy Ай бұрын
Ha ha! That's a good thing to do so we don't forget things.!
@johnrdadrian 2 ай бұрын
Thanks for the lesson. It would be nice if it was a little shorter. To explain what deci, kilo, mega is, for the average person when you go into that type of detail their eyes glaze over. Maybe start by showing how its done, in under 3 min, then go into details that some people may be interested in doing.
@AirConAcademy 2 ай бұрын
Thank you for your suggestions! This gives me an idea as to what other videos I could make. Some my videos are long because I enjoy teaching and I get carried away. Some of these videos are things that are not even taught in an HVAC classroom so I just get carried away. But thank you for your suggestion and I will see what I can do about that and thank you for watching!
@nycsuperfriends9305 2 ай бұрын
great video. very informative but i do have a question. why do you have the suction line coming out of the condenser?
@AirConAcademy 2 ай бұрын
In this video, what you are calling the condenser, I want it to be the condensing unit. Going into the condensing unit you have the liquid line and you have the suction line. If you look at any residential or commercial unit, you will see that where the compressor is it will have both the suction and the liquid line attached to it. And that is where we attach the hoses. That is the liquid line hose and suction line hose. In other words.the blue hose and the red hose. I hope this answers your question. Thank you for watching and thank you for sending the question in!
@tristantimmonstt 2 ай бұрын
Thank you!
@AirConAcademy 2 ай бұрын
I'm glad you like the video! Thank you for watching and I hope this information helps!
@user-dd6eb9bo8r 2 ай бұрын
Thnxs more sir wonderful explain
@AirConAcademy 2 ай бұрын
Thank you! I am glad you liked the video! And thank you for watching!
@ericktandas6588 2 ай бұрын
Nice video
@AirConAcademy 2 ай бұрын
Thank you very much! And thank you for watching!
@mohdzaidqureshi5917 2 ай бұрын
Sir please make a video inverter technology
@AirConAcademy 2 ай бұрын
Great idea! Thank you so much for your suggestion! Let me see what I can do! And thank you for watching!
@KumarKumar-zh7fe 2 ай бұрын
Every video is good tq sir
@AirConAcademy 2 ай бұрын
Thank you so much! And thank you for watching. I'm trying to get more on here!
@TheSkunk1996 2 ай бұрын
Once again thank you so much for a quick refresher.
@AirConAcademy 2 ай бұрын
Thank you and thank you for watching!
@robertchavez5137 2 ай бұрын
Solid video, Julio !
@AirConAcademy 2 ай бұрын
Thank you! I'm glad you liked it! And thank you for watching!
@simonbates9779 2 ай бұрын
Learnt so much in that video. Thanks mate
@AirConAcademy 2 ай бұрын
Thank you so much! I'm so glad to hear that! Thank you for watching!
@CaptCrewSock 2 ай бұрын
Hey Julio do you know about the HVAC subreddit that is on Reddit? If not it is a huge hvac community loaded with entry level techs who could really use your help. If you do know about it then I would encourage you to ask one of the moderators if you could post your stuff on there like this upcoming event. It might help steer traffic back to this channel.
@AirConAcademy 2 ай бұрын
Thank you so much! I had never heard of it, but I am going to look it up and see if there are other people I can help on there! Thank you for letting me know!
@CaptCrewSock 2 ай бұрын
@@AirConAcademy I posted some of my stuff on there for a little bit and it had made some impact with a few of them and they were appreciative but I was never committed to consistent posting.
@AirConAcademy 2 ай бұрын
@@CaptCrewSock I have not been as consistent as I should be! But I'm trying to work on it. I have a friend of mine that keeps pushing me to do more of this. Again, thank you so much!
@AirConAcademy 2 ай бұрын
@@CaptCrewSock Would you be willing to repost my post on Reddit? that would help a lot. If not, no worries.
@user-vk9gm7me9j 2 ай бұрын
If the unloaders stop working can it cause a system to go off on high head pressure?
@AirConAcademy 2 ай бұрын
No, it should not cost it to go out on high head. It will just make the compressor work at its maximum capacity, which is it's original design. if you're having a system that is going out on high head, check your condenser and make sure it is clean he might even want to use a flashlight to look in between the fins, make sure that someone has not replaced the condenser fan motor with a slower, running fan, make sure that the condenser fan is rotating and the proper direction for the fan blade, make sure he has not been overcharged or that there's a restriction. I hope this helps. And thank you for watching!
@TheSkunk1996 2 ай бұрын
Good advice. Thank you sir!!
@AirConAcademy 2 ай бұрын
Thank you! I hope I could help. Thank you for watching!
@mohdzaidqureshi5917 2 ай бұрын
Sir please make a video on inverter AC temperature protection and what all protection is there in it!
@AirConAcademy 2 ай бұрын
Thank you for your suggestion. I am trying to make time to make more videos. I will see what I can do. And thank you for watching!
@mohdzaidqureshi5917 2 ай бұрын
If we turn on the vacuum machine for 1 minute, the moisture present inside the chamber of the compressor will be removed.
@AirConAcademy 2 ай бұрын
Some of the moisture will be removed. But you really need a micron gauge to make sure that you have removed all of the moisture. It is recommended that you pull a vacuum down to 500 µm. it is difficult to say yes that will be long enough because no one really knows how much moisture has gone into the compressor. long before micron gages were invented we would always pull a vacuum for a minimum of 45 minutes. But like I said, it is best to use a micron gauge. Thank you for watching! And I hope this helps!