Compressor Unloader - HVAC Online Training and Courses

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Compressor Unloader - HVAC Online Training and Courses

Рет қаралды 143,154

5 жыл бұрын

In this video, I described the basic operation of an unloader, its purpose, and its use. My explanation will help you to understand how it can stop the work but not stop the motion.
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Пікірлер: 359

@rustygragg6317 3 жыл бұрын

i've been in the hvac business for 19 years, but mostly residential and light commercial. i've never really understood unloaders until i watched your video. thanks so much for sharing this

@AirConAcademy 3 жыл бұрын

I'm so glad that my video helped you understand unloaders! Thank you so much for your kind words and I am so glad I could help! Thank you and keep learning out there!

@jollyscaria1922 5 ай бұрын

Soil heavsystom gas potavting systom soild conrold mechionom sely gas insidd pards dsmgd sdlfeyunlored opn coglod moregax powed edom potacting inside parts slftg valplat hedpate pidon all poractinv sydtim rightedunlored pudhinschion t go oponvslvd op pas dis tbuitng systo motr aut msticsl off self gax lord inde nog pas sinv hevey equpited ok

@AirConAcademy 4 күн бұрын

@@jollyscaria1922 hi, I am not sure what you're trying to say. I wish I could help you. If you could please try again. Thank you.

@hvacrefrigeration4396 Жыл бұрын

This professor takes his time and teaches. I can retain the knowledge quicker, when it’s taught that way.

@AirConAcademy Жыл бұрын

Wow! Thank you so much for your kind words! I love teaching, and it gets me motivated even more when I know I'm helping you guys out there! Thank you for watching!

@tpcoachfix 3 жыл бұрын

Good explanation. I used to work with these compressors, Carrier model O5G 6 cylinders in motor coaches. They were belt driven by the bus engine. When the unloader coil on a head. was electrically energized, those cylinders were unloaded. Lots of guys were confused by this. You could actually feel each side of the outer heads and sense a temperature difference from one side to the other. Low side, high side. I would watch the needles on the gauges "jump" when the unloader went from energized to densrgized.

@AirConAcademy 3 жыл бұрын

Yes, you are correct. A lot of guys get confused with the loading and unloading and with the pressures rising and falling as it loads and unloads. I am glad he liked the video. Thank you for watching!

@arockiyalia1628 3 жыл бұрын

really awesome. everybody can easy to understand how this system works. thank you sir

@wd8557 3 жыл бұрын

Well done, kept it simple and easy.

@sharky5570 3 жыл бұрын

I can tell he is a great teacher!!!! Well done

@AirConAcademy 3 жыл бұрын

Thank you!!!!!

@shanegreen268 5 жыл бұрын

Thank you so much for sharing your knowledge

@adam1australia 3 жыл бұрын

Great explanation mate, I have a learning disability and that made sense to me, thank you so much

@AirConAcademy 3 жыл бұрын

I'm glad you like the video and I am glad that it made sense to you! Keep watching the videos and maybe the other ones will help some more! Good luck out there!

@garretlizotte6288 4 жыл бұрын

To check if you have power at a solenoid you can also rest your amp meter on the magnet and see if it is drawing amps. Thank you for the video!

@AirConAcademy 4 жыл бұрын

Thank you!!!

@robinparsan7055 11 ай бұрын

Thanks so much, I can't expect a better teacher than u, you are an excellent person. God bless you.

@AirConAcademy 11 ай бұрын

Thank you so much for your kind words! I really, really appreciate your comments! And thank you for watching!

@akidos9300 4 жыл бұрын

my salute to you sir .. I see your presentation , i improve myself so much .

@AirConAcademy 4 жыл бұрын

Thank you!!!! I am so glad I can help!!!!

@saltrue1555 4 жыл бұрын

This video give me all understanding about the unloader thank you very much for your teaching God Bless

@AirConAcademy 4 жыл бұрын

I am glad I can help!!!

@monisali1326 3 жыл бұрын

Sir u r amazing.....no words to thanks u....I was looking for months to clear my concept about unloading and loading ...u make me clear in just few minutes....thanks a lot ....God bless u

@AirConAcademy 3 жыл бұрын

Thank you so much for your kind words! I'm so glad to hear that I was able to help you. I hope some of my other videos can also help you, keep learning out there! Thank you!!!

@pacboy3013 Жыл бұрын

Great video buddy , you help me understand my job and I just wanted to say thank you💪🏻

@AirConAcademy Жыл бұрын

Thank you for the wonderful comment! That's why I do these to help you guys out there. Thank you for watching!

@RoyKrugman 5 жыл бұрын

Beautiful, thank you for your sharing

@derrickenbuenosaires 3 жыл бұрын

Thanks for the information. Every now and then I come across unloaders. I understand the concept of what their function is but was not sure how I would go about troubleshooting if I came across a bad unloader. Knowing how your pressures regulate unloaded and loaded helps especially when there are 3 or 4 unloaders on a comp. Constant cycling of the compressor would probably indicate that the unloaders aren't doing their job.

@AirConAcademy 3 жыл бұрын

Yes, that could be an indication. You should check to see if the unloaders are unloading before the compressor shuts off. I mean it should be fully unloaded before it shuts off. Unloaders work great and it minimizes the constant starting up and shutting off of the compressor.

@romankuznetsov8919 3 жыл бұрын

Great video, simple and to the point.

@AirConAcademy 3 жыл бұрын

Thank you!!!! I am glad you liked it!!!

@gabo7904 3 жыл бұрын

Very well explained. He knows the topic.

@AirConAcademy 3 жыл бұрын

Thank you so much! I’m glad you liked it. I hope I can get some other videos online soon.

@tommcneil4374 2 жыл бұрын

just a superb explanation. Thank you again.

@Jugc0006 4 жыл бұрын

He was my HVAC teacher. Very knowledgeable and a very good teacher.

@AirConAcademy 4 жыл бұрын

Thank you!!!

@TheSkunk1996 4 жыл бұрын

What city and state????

@Jugc0006 4 жыл бұрын

@@TheSkunk1996 Virginia

@madzenaircontech4875 2 жыл бұрын

l'm from Indonesian you're best

@godfreyssemagobwe4284 4 жыл бұрын

Am Godfrey Ssemagobwe from Uganda, sir I really appreciate the much effort you put in teach us more about refrigeration and air-condition, if all goes well I will be attending online course from your Academy. It is really interesting sir.

@AirConAcademy 4 жыл бұрын

Thank you so much!!! It is comments and people like you that make me want to do more!!! I hope to see you in class soon. Thank you!!!

@dansteffens4757 2 ай бұрын

This was great man. Great flow and articulation. I learned.

@AirConAcademy 2 ай бұрын

Thank you so much for your kind words! I enjoyed teaching, so I am so glad that I could help! If you get a chance, check out my webpage airconacademy.com I know I did not like school because I did not have any teachers that could actually teach. I enjoyed teaching so I think that makes a difference. Thank you for watching!

@donnahazelip9347 4 жыл бұрын

well done you, your explanation of this is awesome

@AirConAcademy 4 жыл бұрын

Thank you!!!! I am glad you liked it!!!

@jijimathew1000 3 жыл бұрын

It's very comfortable to understand you sir.. thank you so much

@AirConAcademy 3 жыл бұрын

Thank you so much! I really appreciate your comment!

@noelbaracho5755 4 жыл бұрын

Sir , I appreciate all your videos , very informative

@AirConAcademy 4 жыл бұрын

Noel Baracho Thank you! I hope they help.

@wanderlygomes6059 Жыл бұрын

Excellent explanation ! Thank you very much !

@AirConAcademy Жыл бұрын

Thank you! And thank you for watching!

@gerrymetrillo3316 Жыл бұрын

Very well explained! Big thumbs up!

@AirConAcademy Жыл бұрын

Thank you so much! And thank you for watching!

@alocin110 6 ай бұрын

What a fantastic explanation. You are a great teacher and definitely it comes through a lot of experience and high educational background. Thank you for sharing. I liked your video.

@Mythalania 8 ай бұрын

Thank you for sharing your knowledge. You make great videos

@AirConAcademy 8 ай бұрын

Thank you so much! I really appreciate your comments, and I hope to make some more soon!

@themistoklisk82 5 жыл бұрын

Very nice, good work.

@vijayalakshmilakshmi1520 Жыл бұрын

Really it was amazing now only i knew that roll of loading and unloading from the system really great thank you so much

@AirConAcademy Жыл бұрын

Thank you for your comment! And I'm glad I could help! Thank you for watching!

@KINGPAFA Жыл бұрын

Loved your explanation, Thanks.

@AirConAcademy Жыл бұрын

Thank you so much! And thank you for watching!

@ramonbarotillo2969 11 ай бұрын

Thank you so much I’ve learned a lot really appreciated.

@AirConAcademy 11 ай бұрын

You are very welcome! I'm so glad to hear you say that you have learned a lot! I have been doing this for a while so I can feel myself on the way out! I'm glad you guys can come in and take over! Good luck and thank you for watching!

@reyrodriguez1005 4 жыл бұрын

Fantastic video 🤙🏽

@raulgarcia528 4 жыл бұрын

Gracias maestro super , muy professional y anos en HVAC y cosas que Uno no save. Thanks

@AirConAcademy 4 жыл бұрын

Gracias!!! Espero que esto lo ayude!!!!

@mahmoudhossamel-deen2559 5 жыл бұрын

Very good, thank you

@vandeleon462 3 жыл бұрын

Very well explained!!!

@clauderichard6757 4 жыл бұрын

This was masterful and really simple. Thank you

@AirConAcademy 4 жыл бұрын

Thank you!!!!

@karthikkeyan6266 4 жыл бұрын

I like it sir your way of teaching is excellent sir you make it simple sir

@AirConAcademy 4 жыл бұрын

Thank you!!!! I am glad you like it!!!!

@nayeemuddin283 4 жыл бұрын

Great sir it's awesome video knowledge for technicians

@AirConAcademy 4 жыл бұрын

Thank you!!!

@saltrue1555 4 жыл бұрын

Very instructive,thank you very much,God bless

@AirConAcademy 4 жыл бұрын

Thank you!!!

@glenguzman0383 4 жыл бұрын

Thank you sir. Very imformative resource. Worth subscribing video

@AirConAcademy 4 жыл бұрын

Thank you!!!

@bens6434 Жыл бұрын

excellent explanation! thank you

@AirConAcademy Жыл бұрын

I'm glad you like the video and thank you so much for watching!

@jiyesh100 8 ай бұрын

Very simple clear and nice way explained thanku lot

@AirConAcademy 8 ай бұрын

Thank you!!!! I am glad you liked the video!!!

@paulb4496 Жыл бұрын

Open Compressors are also used for Ammonia systems. Ammonia is corrosive to motor windings.

@AirConAcademy Жыл бұрын

I have never worked on and ammonia system. Thank you for letting me know. I was not aware that ammonia was corrosive to motor windings! Thank you and thank you for watching!

@Aliimran-gz5oy 4 жыл бұрын

Thanks sir u are really excellent teacher take care.

@AirConAcademy 4 жыл бұрын

Ali imran thank you!!!!

@kargowe6811 10 ай бұрын

Thanks mate. It's better than the textbook reading.

@AirConAcademy 10 ай бұрын

HA HA!!! Yes it is I don't like to read but I like teaching more then I dislike reading so I read so I can teach. If that makes any sense? and doing this so long I have also learned a lot out in the field. Thank you for watching!!!

@phillipborbon6598 2 жыл бұрын

thanks, i really understood how an unloader works.

@AirConAcademy 2 жыл бұрын

Thank you so much! I am glad. That's why I do this to pass this information on!

@rubenrojas8632 4 жыл бұрын

Thank you for the information.

@AirConAcademy 4 жыл бұрын

I am glad I cold help!

@Pandian_9083 8 ай бұрын

Super explanation.Appreciated

@AirConAcademy 8 ай бұрын

You're welcome! I'm glad you enjoyed the video and thank you for watching!

@melusingcobo1735 3 жыл бұрын

Thanks for the knowledge now i understand it helps

@mansyurwandanwandan5292 2 жыл бұрын

Good morning, I have a question for the technician, that after I disassembled the Carlyle 5h80-A194 compressor and replaced the new spare parts, namely the piston, ring, conroad, bearing conroad complete with 4 slave cylinders. After that, I tested running, but it looks like the compressor is not powered up, even 2 cylinders feel hot. I've tried opening the cylinder cover again and checking that the valve plate is installed correctly, the suction valve is in position. Then the test run again, the result is still the same. Even the capacity valve has been adjusted. clockwise or vice versa, but the compressor is still not powered. my question: can i be helped to find a solution so that the compressor can run normally and can cool down. notes. now i run compressor no two normal and cold. Thank you in advance

@TS86757 3 жыл бұрын

Beautiful, thanks a lot for sharing

@AirConAcademy 3 жыл бұрын

I am glad you liked it, and thank you for watching!

@wasimedoo1506 3 жыл бұрын

Very nice information from you bro

@AirConAcademy 3 жыл бұрын

Thank you so much! I'm glad you like the video! Keep learning and be safe out there!

@richieimoagene1570 3 жыл бұрын

Excellent teacher.

@AirConAcademy 3 жыл бұрын

Thank you so much! I'm glad you like the video and I'm glad to help!

@riskyromdoni1160 2 жыл бұрын

Very helpfull. Really. Thank you

@AirConAcademy 2 жыл бұрын

Thank you so much! I'm glad it was helpful!

@gnasty30 Жыл бұрын

Amazing video thank you so much

@AirConAcademy Жыл бұрын

Thank you! I'm glad you liked the video and thank you for watching!

@hvac8826 15 күн бұрын

Love your explanation ❤

@AirConAcademy 14 күн бұрын

Thank you so much for your kind words! I'm glad you like the video and thank you for watching!

@rabinsuryabanshi4846 4 ай бұрын

Omg its awesome its so easy to understand my teacher doesnot describe like this

@strazar41 3 жыл бұрын

Hey great explanation. Thanks for that.

@AirConAcademy 3 жыл бұрын

You are welcome glad you like it!!!

@jiyesh100 8 ай бұрын

Very nicely explained Sir thank you

@AirConAcademy 8 ай бұрын

Thank you and thank you for watching!

@michaellopes1173 2 жыл бұрын

Brazil here. Thanks.

@AirConAcademy 2 жыл бұрын

Thank you for letting me know! I was wonder where everyone is from! And I hope it helped!

@agreenbug9900 Жыл бұрын

Good demonstration.

@AirConAcademy Жыл бұрын

Thank yo and thank you for watching!!!

@usamajadoon352 3 жыл бұрын

Very well explained

@AirConAcademy 3 жыл бұрын

Thank you!!! I am glad you liked it!!!

@IrvingOrtiz 3 жыл бұрын

Very knowledgeable thank you

@AirConAcademy 3 жыл бұрын

I am glad you like it!!!

@mdmozammel3624 5 жыл бұрын

Thanks Sir

@moizuddinfaheem5357 4 жыл бұрын

Thanks for sharing your explanation is very nice I appreciate it.

@AirConAcademy 4 жыл бұрын

Thank you, and I’m having a webinar in a few minutes it is free so if you wish to join it please go ahead and join it

@AirConAcademy 4 жыл бұрын

www.airconacademy-courses.com/event-details/hvac-troubleshooting-webinar

@JohnJohn-nu8ql Жыл бұрын

This is amazing! Very knowledgeable n good explanation! U r my great instructor 👍can u explain why compressor need pressure equalized ？please!

@AirConAcademy Жыл бұрын

Thank you so much! Thank you for your compliments and thank you for watching. I am not sure what you mean when you say pressure equalized? I believe you are talking about the pipe that is normally connecting two compressors when they run tandem Lee like in a chiller? One of the reasons they do this is because of the oil. As the compressor runs, it will pump some of the oil out because it mixes in with the refrigerant. As the suction Gas comes back, the oil is mixed in with it, and it would collect in only one of the compressors, if we did not have this equalization pipe between the two compressors. I hope this answers your question!!! And again, thank you for watching!

@mat.5211 4 күн бұрын

Best of all time ....thanks.

@AirConAcademy 4 күн бұрын

Wow! Thank you so much for the kind words. I'm glad you enjoyed the video and thank you for watching!

@NROhvac 6 ай бұрын

I understand the heat load determines if the loaders are energised or not. What are some ways this happens? Is it communication with a room thermostat? Is it recording discharge air and is trying to maintain set point? I’m sure there’s a lot of ways to control them, but what are the most common? Thanks for the videos you are a great teacher

@mosestengbeh2886 3 жыл бұрын

Wonderful sir.

@AirConAcademy 3 жыл бұрын

Thank you!!!! I am glad you liked it!!!!

@ryangoslinglover357 Жыл бұрын

Thank you so much!

@AirConAcademy Жыл бұрын

Thank you! And thank you for watching!

@user-dd6eb9bo8r Ай бұрын

Thnxs more sir wonderful explain

@AirConAcademy Ай бұрын

Thank you! I am glad you liked the video! And thank you for watching!

@RichBigIron 5 жыл бұрын

Very informational!! Thanks.

@mohdsajidsajid2810 10 ай бұрын

Thanks for lot and very good teach

@AirConAcademy 10 ай бұрын

Thank you very much! And thank you for watching!

@Natnat_816 Жыл бұрын

Thank you very much sir!

@AirConAcademy Жыл бұрын

Thank you! And thank you for watching!

@b.d.1409 3 жыл бұрын

Great video! When adding refrigerant to a system, the compressor should be loaded. Typically, on an 06 e/d Carlyle, should the unloaders be ran in or out to be loaded?

@AirConAcademy 3 жыл бұрын

Yes, that is the only way to get the charge correct. To make sure the system is fully loaded. I don't know how your unloaders are set up but make sure that the unit is calling for full cooling so that the unloaders will be loaded. You will see that the pressures will change. The suction pressure will drop and discharge pressure will increase. Only then will you be able to get a charge correct. Hope this helps.

@sbk9440 3 жыл бұрын

Good teacher I like his style

@AirConAcademy 3 жыл бұрын

Thank you!!!! I am glad you liked it!!!!

@ParwezAnsari-uz7kz 4 жыл бұрын

Good blessed u sir

@AirConAcademy 4 жыл бұрын

I am glad you liked the video!!! and I need the blessings Thank you!!!

@ercelmac.7418 3 жыл бұрын

Thankyou for informative video..hope u gonna have a lesson about capacity load type compressors.

@AirConAcademy 3 жыл бұрын

Thank you I will see what I can do!!!

@wilfreddufrene5364 4 жыл бұрын

i appreicate your knowledge

@AirConAcademy 4 жыл бұрын

Thank you!!!! I am glad I can help!!!

@abhijeetsinhe1250 5 жыл бұрын

@9:04 u r explaining that with loading and unloading suction and discharge pressure changes what I think is, consider an example, we have R404 in our system and require temp is 4 deg C , to achieve this we need suction pressure around 60psig , if heat load increase this evaporator's pressure goes down(i.e. suction pressure) and to maintain the pressure 60psig load on compressor increases and it will activate another bank of cylinder and when load decrease it will unload the bank. This is how loading and unloading works. AND you are explaining that the pressure difference changes with loading and unloading but we have to maintain pressure in evaporator to maintain constant Temp.

@AirConAcademy 5 жыл бұрын

yes you want to maintain around 4C as the load increases the evaporator pressure or suction pressure should increase not drop, but when the compressor loads up that is when the suction pressure would drop to keep the pressure where it should be 60PSI so it can stay around 4C. As the load decreases or the room temperature drops it will automatically unload. and yes every time the cylinder loads up (or it is doing work) the pressure should drop and when it is NOT doing work the pressure will increase.

@l.crossjr 4 жыл бұрын

Very well explained. One question, when unloaders are energized and the port to suction is open all the time, doesn't this raise the low side pressure? Meaning that all that gas is flowing backwards to the evap?

@alexkolle8928 3 жыл бұрын

Basically, all valves to and from the compressor have to be closed in order for psi to build or get higher. This is because the compressor takes for example 10 ounces of space and compresses it into 2 ounce of space. If the suction side valve is open and the piston is moving up and down I have all that space from the compressor piston all the way back to the evaporator coil. This can be for example 100 ounces. The compressor now with the unloader operational is taking 110 ounces of space and compressing it into 102 ounces. This will barely raise the psi in the system and wont affect the flow of refrigerant. 10 ounces down to 2 ounces causes refrigerant to go from 10 psi to 100 psi 110 ounces down to 2 ounces causes refrigerant to go from 10 psi to 11 psi. If you think about that, 110 psi compared to 11 psi, the discharge side of the compressor is so much higher than the suction side. Basically this difference in pressure wont matter to the flow of refrigerant and your system will work. Even if you were able to have some flow of refrigerant from the suction side to the evaporator there would be a check valve installed on the system that would make sure that you have the proper flow. Try to think about the volume that the compressor has when both valves are closed and how much it can compress vs when the unloader forces it open and you have a large area/volume that cant really be compressed.

@qasimkazmi786 3 жыл бұрын

Excellent work

@AirConAcademy 3 жыл бұрын

HA HA!! Thank you!!!

@qasimkazmi786 3 жыл бұрын

Welcome

@madzenaircontech4875 2 жыл бұрын

Nice explaination

@AirConAcademy 2 жыл бұрын

Thank you very much! Thank you for your comment and I'm glad you enjoyed the video! Thank you for watching!

@sandeepsinghyadav3753 2 жыл бұрын

Today I understand 100% loading and unloading of compressor

@AirConAcademy 2 жыл бұрын

Thank you so much! I really appreciate comments like this! It took me a while to make this video because I do all of this myself. I'm glad I could help! Good luck out there! And keep learning!

@hvac877 3 жыл бұрын

Good explanation

@AirConAcademy 3 жыл бұрын

Thank you!!! I am glad you liked it!!!!

@hasanulmuslim6276 4 жыл бұрын

Thank u💚

@pasinduhansamal6514 3 жыл бұрын

It is a Nice explain ❤️

@AirConAcademy 3 жыл бұрын

Thank you so much! I'm glad you liked the video!

@mamdoohabdallah9721 7 ай бұрын

great, thanks

@AirConAcademy 7 ай бұрын

I'm glad you like the video! And thank you for watching!

@lukmanbakare3195 2 жыл бұрын

Great knowledge shared. THANKS. I will like to exactly how the unloader coil is activated. Does it have anything to do with suction pressure?

@AirConAcademy 2 жыл бұрын

That is a good question. Some are operated by oil pressure, some are operated by suction pressure, some are by demand. Meaning that if you need more cooling it will load up if you need less cooling it will unload and do less work.

@lukmanbakare3195 2 жыл бұрын

@@AirConAcademy Thanks for sharing. I look for to more especially on animations. Keep up the good work.

@karimelzamly851 3 жыл бұрын

Thanks my teacher

@AirConAcademy 3 жыл бұрын

Thank you for watching!!!

@arindammandal2502 2 жыл бұрын

Thank you so much sir ❤️

@AirConAcademy 2 жыл бұрын

Thank you! And I'm glad you like the video!

@fesalmodi1909 4 жыл бұрын

I appreciate your time and effort. I have a question please yesterday I had question in my head that what would happen to a compressor if it runs on negative pressure for example ( low pressure switch incorrectly set) so that the compressor below atmospheric pressure runs. many greetings from Germany

@AirConAcademy 4 жыл бұрын

YES!!!! The low pressure switch is either not set properly or it is bypassed. make sure it is not happening because that will kill a compressor very easily!!! it will run with no refrigerant gas to cool it and it will fail

@EmmyZoide 4 жыл бұрын

Very good!

@AirConAcademy 4 жыл бұрын

Thank you!!!! I am glad you liked it!!!

@user-dd6eb9bo8r Жыл бұрын

احسنت very wonderful video

@AirConAcademy Жыл бұрын

Thank you! I'm glad you like the video! Thank you for watching!

@syedbasheer8210 3 жыл бұрын

Thank you🤩

@EVILMADBASTAD 5 жыл бұрын

Thank you

@AirConAcademy 4 жыл бұрын

Thank you and Happy New year!!!

@mushtaqahmad7897 2 жыл бұрын

Very good teacher nice

@AirConAcademy 2 жыл бұрын

Thank you so much! I really appreciate your comment and thank you for watching!

@jiyesh100 3 жыл бұрын

Very nice explanation sir and thanks Had one small query that what if the external solenoid loaded/unloaded is not used for compressor and all pistons are working loaded and will cut off only when the room temp reaches the desire temp set point by the LP and HP cut out, will it work normal if we remove the solenoid in emergency can we make it direct in some situations.

@AirConAcademy 3 жыл бұрын

Yes if your compressor is fully loaded when the solenoid is de-energized and you remove the solenoid, then the compressor will always be loaded and it will operate without any problems. that is ok. thank you for your question.