Compressor Unloader - HVAC Online Training and Courses
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- Опубліковано 7 жов 2024
- 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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This professor takes his time and teaches. I can retain the knowledge quicker, when it’s taught that way.
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!
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
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!
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@@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.
He was my HVAC teacher. Very knowledgeable and a very good teacher.
Thank you!!!
What city and state????
@@TheSkunk1996 Virginia
l'm from Indonesian you're best
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!
Thank you!!!
Great explanation mate, I have a learning disability and that made sense to me, thank you so much
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!
Very simple clear and nice way explained thanku lot
Thank you!!!! I am glad you liked the video!!!
Thanks so much, I can't expect a better teacher than u, you are an excellent person. God bless you.
Thank you so much for your kind words! I really, really appreciate your comments! And thank you for watching!
Thank you for sharing your knowledge. You make great videos
Thank you so much! I really appreciate your comments, and I hope to make some more soon!
Today I understand 100% loading and unloading of compressor
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!
It's very comfortable to understand you sir.. thank you so much
Thank you so much! I really appreciate your comment!
Best of all time ....thanks.
Wow! Thank you so much for the kind words. I'm glad you enjoyed the video and thank you for watching!
I can tell he is a great teacher!!!! Well done
Thank you!!!!!
I like it sir your way of teaching is excellent sir you make it simple sir
Thank you!!!! I am glad you like it!!!!
Sir , I appreciate all your videos , very informative
Noel Baracho Thank you! I hope they help.
Very nicely explained Sir thank you
Thank you and thank you for watching!
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.
Great video buddy , you help me understand my job and I just wanted to say thank you💪🏻
Thank you for the wonderful comment! That's why I do these to help you guys out there. Thank you for watching!
Omg its awesome its so easy to understand my teacher doesnot describe like this
Very well explained. He knows the topic.
Thank you so much! I’m glad you liked it. I hope I can get some other videos online soon.
This video give me all understanding about the unloader thank you very much for your teaching God Bless
I am glad I can help!!!
really awesome. everybody can easy to understand how this system works. thank you sir
Brazil here.
Thanks.
Thank you for letting me know! I was wonder where everyone is from! And I hope it helped!
Excellent explanation ! Thank you very much !
Thank you! And thank you for watching!
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.
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!!!
Excellent teacher.
Thank you so much! I'm glad you like the video and I'm glad to help!
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.
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!
Amazing lesson, thank you.
Thank you so much! And thank you for watching!
Really it was amazing now only i knew that roll of loading and unloading from the system really great thank you so much
Thank you for your comment! And I'm glad I could help! Thank you for watching!
my salute to you sir .. I see your presentation , i improve myself so much .
Thank you!!!! I am so glad I can help!!!!
Very nice information from you bro
Thank you so much! I'm glad you like the video! Keep learning and be safe out there!
Great sir it's awesome video knowledge for technicians
Thank you!!!
thanks, i really understood how an unloader works.
Thank you so much! I am glad. That's why I do this to pass this information on!
Very well explained
Thank you!!! I am glad you liked it!!!
Thank you so much I’ve learned a lot really appreciated.
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!
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
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!!!
Super explanation.Appreciated
You're welcome! I'm glad you enjoyed the video and thank you for watching!
Thank you so much for sharing your knowledge
This was great man. Great flow and articulation. I learned.
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!
Very knowledgeable thank you
I am glad you like it!!!
Thanks sir u are really excellent teacher take care.
Ali imran thank you!!!!
Well done, kept it simple and easy.
Thanks mate. It's better than the textbook reading.
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!!!
I have watched a lot of technical teachers on compressors, on you tube. Some would talk and talk and include practical works and the more you try to learn from them, to mire confused you become. But in your case your explanation is very clear and easily understood. I'm a factory owner in west Africa. I handle heavy industrial and commercial equipments and have large stock from Copland, Carrier, Hitachi, Bitzer, Duareen etc. I build blasting units, cold storage facilities, as well as air Condition commercial and residential buildings. I would like to watch more of your videos, as well as share Ideas. Thanks.
Thank you so much for your kind words. I am so glad that I can help people understand how things work. please tell your friends and co workers about these videos and have them subscribe to my channel. If you have any suggestions for videos please send me a message. Thank you
This is amazing! Very knowledgeable n good explanation! U r my great instructor 👍can u explain why compressor need pressure equalized ？please!
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!
Loved your explanation, Thanks.
Thank you so much! And thank you for watching!
Gracias maestro super , muy professional y anos en HVAC y cosas que Uno no save. Thanks
Gracias!!! Espero que esto lo ayude!!!!
excellent explanation!
thank you
I'm glad you like the video and thank you so much for watching!
Love your explanation ❤
Thank you so much for your kind words! I'm glad you like the video and thank you for watching!
Good teacher I like his style
Thank you!!!! I am glad you liked it!!!!
Thnxs more sir wonderful explain
Thank you! I am glad you liked the video! And thank you for watching!
Very instructive,thank you very much,God bless
Thank you!!!
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.
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.
Excellent work
HA HA!! Thank you!!!
Welcome
Great video, simple and to the point.
Thank you!!!! I am glad you liked it!!!
Good demonstration.
Thank yo and thank you for watching!!!
Very well explained! Big thumbs up!
Thank you so much! And thank you for watching!
Thank you sir. Very imformative resource. Worth subscribing video
Thank you!!!
Very helpfull. Really. Thank you
Thank you so much! I'm glad it was helpful!
Thanks for lot and very good teach
Thank you very much! And thank you for watching!
well done you, your explanation of this is awesome
Thank you!!!! I am glad you liked it!!!
This was masterful and really simple. Thank you
Thank you!!!!
i appreicate your knowledge
Thank you!!!! I am glad I can help!!!
Amazing video thank you so much
Thank you! I'm glad you liked the video and thank you for watching!
Thanks for the knowledge now i understand it helps
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
Open Compressors are also used for Ammonia systems. Ammonia is corrosive to motor windings.
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!
Wonderful sir.
Thank you!!!! I am glad you liked it!!!!
just a superb explanation. Thank you again.
Thank you very much sir!
Thank you! And thank you for watching!
Very good teacher nice
Thank you so much! I really appreciate your comment and thank you for watching!
Thank you for the information.
I am glad I cold help!
Good explanation
Thank you!!! I am glad you liked it!!!!
Thanks my teacher
Thank you for watching!!!
Thanks for sharing your explanation is very nice I appreciate it.
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
www.airconacademy-courses.com/event-details/hvac-troubleshooting-webinar
Good teacher
Thank you so much! I really appreciate your comment!
Nice explaination
Thank you very much! Thank you for your comment and I'm glad you enjoyed the video! Thank you for watching!
It is a Nice explain ❤️
Thank you so much! I'm glad you liked the video!
Thank you so much sir ❤️
Thank you! And I'm glad you like the video!
Beautiful, thanks a lot for sharing
I am glad you liked it, and thank you for watching!
Thanks you so much sir 🙏
Thank you and thank you for watching!!!!
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
Thank you so much!
Thank you! And thank you for watching!
Thank you sir
I'm glad you liked the video and thank you for watching! Check out my other videos!
Good blessed u sir
I am glad you liked the video!!! and I need the blessings Thank you!!!
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.
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.
Beautiful, thank you for your sharing
great, thanks
I'm glad you like the video! And thank you for watching!
Thanks master
You're very welcome! And thank you so much for watching!
Hey great explanation. Thanks for that.
You are welcome glad you like it!!!
Thankyou for informative video..hope u gonna have a lesson about capacity load type compressors.
Thank you I will see what I can do!!!
You are number one
Can you tell me about Air compressor have unloader but is the that unloader work at same this operation or just discharge the air out to surrounding when unloading time(start and stop the compressor)?
Thank you and I'm glad you like the video! Air compressors they load and unload to keep the electric motor from drawing high amperage. Every time an electric motor starts up it draws high amperage and that cost money in electricity. Plus it puts stress on the motor. So it is best to just unload the air compressor so that the air is not being compressed and being dumped out so that you don't have the start and stop on air compressors. I hope this helps and again thank you for watching!
احسنت very wonderful video
Thank you! I'm glad you like the video! Thank you for watching!
Nice explain
Thank you I am glad you liked it!!!!
Very nice, good work.
Thanks Sir
Very informational!! Thanks.
Thanx a lot.
You're welcome! Thank you for watching!
Very good, thank you
Very well explained!!!
Fantastic video 🤙🏽
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?
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.