This has to be the Best description of a refrigeration cycle I've seen (seen many). Easy to understand, plain and sensible use of English, organized and good flow, fast, etc. No adiabatic, enthalpy, and other complicated terms that distract. Good job! Thumbs up
i know im randomly asking but does any of you know of a trick to get back into an instagram account..? I somehow lost the password. I would love any assistance you can give me
@Nikolai Maximus thanks for your reply. I found the site through google and I'm trying it out atm. I see it takes a while so I will reply here later with my results.
"we're not taking hot air out of the house, we're taking heat out, the two air flows are separate" This immediately helped my understanding of the cycle.
I am someone who is just getting in the HVAC-R trade. I have been going on ride alongs with a company and the gentian I've been learning from has been teaching me this process. After watching this video it all clicks to me! this is one of the best teaching videos I've watched. Thank you.
I have been watching many videos, I heard the superheat/subcooling over and over. With the explanation here, all makes now sense. Thank you, thank you.
Most outstanding! Great video. Explained thoroughly and clearly plus you covered a lot of pertinent details like in/out temps for evap and condenser. Plus it is the first time I have ever seen that explains how the evaporator keeps liquid out of the compressor. Thanks so much
Thanks for the simple explanation, now I have a good foundation to build on. Especially the metering device was always a difficult explanation to try and sort out, but you did it for me. Thanks again sir
I'm studying 5th Class power engineering here. I'm already a plumber, so I've got the boiler stuff down pretty well. The refrigeration side though, is the next largest part of the provincial exam. I know very little about refrigeration. This is the best video I've found yet. Thanks
You'd think I'd understand superheat and subcool by now, but I didn't until this video! It's just the temp above and below boiling point, now I get it! I still view the refrigeration cycle as the closest thing to real life magic I know besides flight.
i been trying to under stand this for the past four week and for the life of me i could not get it at all... but this video help me in just the 1st watch... thank you alot sir
@@measureQuick This is really and truly the best explanation out there on the refrigeration cycle. It i much clearer too me now. I have been lost in class for sometime now.
This was well presented but it contains one flaw common to every refrigeration cycle explanation I have ever encountered. The job of the compressor is not to increase the pressure; its job is to increase the temperature. It accomplishes that job by increasing the pressure. I believe that one of the reasons so many people struggle to troubleshoot refrigeration systems efficiently is because of this inappropriate elevation of the importance pressure change in the cycle. Of course, it is important but the job of a refrigeration cycle in an air-conditioning application is to absorb heat from cool indoor air and shed it in warmer outdoor air. The heat absorbing coil must be cooler than the indoor air it is absorbing heat from, and the heat shedding coil must be warmer than the outdoor air it is shedding heat too. To do this it would be obvious to the student that there has to be a mechanism in the cycle to make the outdoor components warmer than the indoor components. To me it makes more sense to explain that this is the job the compressor does, raise the temperature, and to explain that the metering devices job is to lower the temperature. Then explain that the compressor raises the temperature by raising the pressure and the metering device lowers the temperature by lowing the pressure. Temperature change is PRIMARY, pressure change is just the means to that end. The refrigeration cycle contains five basic components: a heat carrier (refrigerant), a heat absorber (evaporator), a temperature increaser (compressor), a heat shedder (condenser), and a temperature reducer (metering device).
Do you know if there are videos of some one going through the system. like you do here except with different faults and how they affect the system? It would be tremendously helpful to people how are visual learners.
hi,Thanks for your clear explanation of Refrigerator Cycle. I have one rather important question I would like to ask. Your Airflow where does the Air come from. Is it normally a Close Loop System where the Air is constantly re-circulated by the Evaporator Fan in the Fridge, or is Fresh Air Intake going on so that the Evaporator Fan is constantly pulling Fresh Air from the Outside and blowing it through the Evaporator Coils inside the Fridge. Also if it is not a close Loop System and the Fresh Air is constantly being sucked in from outside , is it vented out as it is recirculated inside and replaced by a fresh stream of air. Thanks
Thank you for this video. Originally the blue gauge showed the saturation temperature of 20 degrees F (Pressure 43 PSI R22). At the same time the temperature I measure on the blue line next to the charging port is 80 degrees F. Thus my Superheat is 80 F - 20 F = 60 F. The pressure at the red gauge before charging was 200 PSI that corresponds to the temperature of 102 F. When I charged the system from the R22 recovery bottle, the Superheat changed 75 F - 26 F = 49 F. my red At the same time my red gauge after charging shows the pressure 225 PSI or it is the temperature 106 F and I measured the temperature of the high pressure pipe was 106 F. Question- is my system is overcharged now of I should continue charging it?
thank you for the video but I still don't get how the heat is remove from inside the house? is thru the evaporator coil ? but once you remove the hot air from the inside the house and supply 55 degrees what happens to the heat? where does it goes?
You are not removing the "hot air" you are removing the "heat" from the hot air. The refrigerant in the evaporator absorbs a large amount of heat converting from a liquid to a vapor and the heat is rejected outside in the condenser to the outdoor air as the refrigerant is condensed back to a liquid. The boiling and condensing are controlled by controlling the boiling and condensing points of the refrigerant with the selection of the compressor and metering device and refrigerant type.
Have a side by side KENMORE FRIDGE, THE FREEZER FREEZING BUT THE FRIDGE NOT COOLING NO VOOL AIR COMING THROUGH THE AIR VENT INTO THR FRIDGE. COULD SAY WHAT'S THE PROBLEM?. THANK you so much.
This has to be the Best description of a refrigeration cycle I've seen (seen many). Easy to understand, plain and sensible use of English, organized and good flow, fast, etc. No adiabatic, enthalpy, and other complicated terms that distract. Good job! Thumbs up
i know im randomly asking but does any of you know of a trick to get back into an instagram account..?
I somehow lost the password. I would love any assistance you can give me
@Shepard Lucian instablaster =)
@Nikolai Maximus thanks for your reply. I found the site through google and I'm trying it out atm.
I see it takes a while so I will reply here later with my results.
@Nikolai Maximus it worked and I now got access to my account again. I am so happy:D
Thank you so much, you really help me out :D
@Shepard Lucian Glad I could help :D
"we're not taking hot air out of the house, we're taking heat out, the two air flows are separate" This immediately helped my understanding of the cycle.
This video made abundantly more sense than the semester of Thermo that I sweat through (no pun) in college! Thanks for a great explanation!
PHENOMENAL EXPLANATION. Anyone working on Automobile A/C would benefit from this!
I am someone who is just getting in the HVAC-R trade. I have been going on ride alongs with a company and the gentian I've been learning from has been teaching me this process. After watching this video it all clicks to me! this is one of the best teaching videos I've watched. Thank you.
Left handed guys are always very intelligent and smart , keep uploading boss
I have been watching many videos, I heard the superheat/subcooling over and over. With the explanation here, all makes now sense. Thank you, thank you.
Great presentation Jim Bergmann, clear explanatory overview. thank you !
Outstanding explanation, thank you. No thermodynamics gobbledygook, no entropy mayhem. Just Boyles Law . Thanks so much
2 minutes into the video and this has been a great video to learn from immediately 💯💯💯
Hi Jim, wanna say good job in putting up the video in simple and detailed view of the Vapour cycle air conditioning syste. Appreciate that
Awesome explanation!!! Simple and to the point!!! Someone give this guy a raise!!! Thank you
By far the best video I have seen as well. You made the refrigeration cycle make so much sense. Thank you
you're the best JIM, thank you very much.
Best explanation of a refrigeration cycle ive seen yet!👍🏻👍🏻👍🏻👍🏻...Thanks
Most outstanding! Great video. Explained thoroughly and clearly plus you covered a lot of pertinent details like in/out temps for evap and condenser. Plus it is the first time I have ever seen that explains how the evaporator keeps liquid out of the compressor. Thanks so much
Best presentation EVER. THANKS
This was extremely helpful...I've watched a bunch of videos and your video was able to give me clear understanding. THANK YOU
The best instruction so far!
Really appreciate this video. Thanks for making the basic HVAC cycle understandable. Well done.
Excellent video, this is the right way to teach the refrigeration cycle to new and prospective hvav technicians!!
Excellent explanation, it was refreshing.
Excellent presentation. Thanks!
At last! I understand it. Brilliant. Many thanks.
Thanks, you have the most accessible presentation of the basic refrigeration cycle.
I reported this comment for child abuse 😂 The best past was his smirk after he told the joke.
The best I've seen. Thanks
Great Job! Helped me out on my last min exam prep.
Dude! This is awesome! Thank you!!!
Great educational video and training. Thank you
Thank you for this. I was somewhat confused based on what my class was telling me. You made it pretty straightfoward.
Very helpful. Needed to refresh my understanding of the cycle and this was very well done.
Thank you. This is by far the most comprehensive explanation I've ever seen in youtube about Air Conditioning cycle....
Wow, thanks!
Excellent, concise, and clear.
Great explanation. You couldn’t of explained it better. Great job Sir
This is a great video and fantastic explanation of the refrigeration cycle.
This is an excellent video. Thanks
He is a very good teacher!
Great job Jim!
Thanks for the simple explanation, now I have a good foundation to build on. Especially the metering device was always a difficult explanation to try and sort out, but you did it for me. Thanks again sir
I'm studying 5th Class power engineering here. I'm already a plumber, so I've got the boiler stuff down pretty well. The refrigeration side though, is the next largest part of the provincial exam. I know very little about refrigeration. This is the best video I've found yet. Thanks
Explained this way better than my instructor!
Thanks in a million. Great content. Awesome. Grade: A++💥
Thankful to you for for this awesome overview, free of confusions.
Could u do more videos & spread your knowledge & use board like this one?
Very good, thank you!
Thank you for this great explanation.. really helps
Excellent explanation!!!
Great Video!
THANKS FOR GIVING A VIDEO IN THIS TOPIC, IT HELPS FOR MY COMETATIVE EXAMS
Wauy this video is amazing, they way you express the circle is perfect great video boss 💯🙏🏽✊🏽
Great video, thanks
Thank you sir .. wonderfull overview🙂
Great video!
Great job sir!
Great video could you do the same video for adsorption system?
Your explanation is very clear. Thank you.
You'd think I'd understand superheat and subcool by now, but I didn't until this video! It's just the temp above and below boiling point, now I get it!
I still view the refrigeration cycle as the closest thing to real life magic I know besides flight.
not all heroes wear capes
Awesome explanation, Thx
Very good explanation, thank you
i been trying to under stand this for the past four week and for the life of me i could not get it at all... but this video help me in just the 1st watch... thank you alot sir
Glad to be of assistance!
@@measureQuick This is really and truly the best explanation out there on the refrigeration cycle. It i much clearer too me now. I have been lost in class for sometime now.
Thanks from India
Very good!
Very helpful thank you. Can u please do a video on water chillers and/or cascade and booster systems
Excellent presentation.
it was very informative sir!!! well done
Great explanation
This was well presented but it contains one flaw common to every refrigeration cycle explanation I have ever encountered. The job of the compressor is not to increase the pressure; its job is to increase the temperature. It accomplishes that job by increasing the pressure. I believe that one of the reasons so many people struggle to troubleshoot refrigeration systems efficiently is because of this inappropriate elevation of the importance pressure change in the cycle. Of course, it is important but the job of a refrigeration cycle in an air-conditioning application is to absorb heat from cool indoor air and shed it in warmer outdoor air. The heat absorbing coil must be cooler than the indoor air it is absorbing heat from, and the heat shedding coil must be warmer than the outdoor air it is shedding heat too. To do this it would be obvious to the student that there has to be a mechanism in the cycle to make the outdoor components warmer than the indoor components. To me it makes more sense to explain that this is the job the compressor does, raise the temperature, and to explain that the metering devices job is to lower the temperature. Then explain that the compressor raises the temperature by raising the pressure and the metering device lowers the temperature by lowing the pressure. Temperature change is PRIMARY, pressure change is just the means to that end.
The refrigeration cycle contains five basic components: a heat carrier (refrigerant), a heat absorber (evaporator), a temperature increaser (compressor), a heat shedder (condenser), and a temperature reducer (metering device).
That is a very good point, at a fundamental level it may provide a better understanding.
Thank you for your this study i think it had done useful a video
Thank you thank you thank you
Great presentation
Good job sir
Can you do a similar video on the heating process and furnace
Do you know if there are videos of some one going through the system. like you do here except with different faults and how they affect the system? It would be tremendously helpful to people how are visual learners.
Best soooo far ❤🙌🏻🙌🏻🙌🏻
Thanks!
thanks you so very much
excellent.
Thank you sir..
best explanation
Very informative
hi,Thanks for your clear explanation of Refrigerator Cycle. I have one rather important question I would like to ask. Your Airflow where does the Air come from. Is it normally a Close Loop System where the Air is constantly re-circulated by the Evaporator Fan in the Fridge, or is Fresh Air Intake going on so that the Evaporator Fan is constantly pulling Fresh Air from the Outside and blowing it through the Evaporator Coils inside the Fridge. Also if it is not a close Loop System and the Fresh Air is constantly being sucked in from outside , is it vented out as it is recirculated inside and replaced by a fresh stream of air. Thanks
Stevei Stevei the evaporator air is recirculated.
Thank you for this video. Originally the blue gauge showed the saturation temperature of 20 degrees F (Pressure 43 PSI R22). At the same time the temperature I measure on the blue line next to the charging port is 80 degrees F. Thus my Superheat is 80 F - 20 F = 60 F. The pressure at the red gauge before charging was 200 PSI that corresponds to the temperature of 102 F. When I charged the system from the R22 recovery bottle, the Superheat changed 75 F - 26 F = 49 F. my red At the same time my red gauge after charging shows the pressure 225 PSI or it is the temperature 106 F and I measured the temperature of the high pressure pipe was 106 F. Question- is my system is overcharged now of I should continue charging it?
Thankyou..
I understood this.
thank you for the video but I still don't get how the heat is remove from inside the house?
is thru the evaporator coil ? but once you remove the hot air from the inside the house and supply 55 degrees what happens to the heat? where does it goes?
You are not removing the "hot air" you are removing the "heat" from the hot air. The refrigerant in the evaporator absorbs a large amount of heat converting from a liquid to a vapor and the heat is rejected outside in the condenser to the outdoor air as the refrigerant is condensed back to a liquid. The boiling and condensing are controlled by controlling the boiling and condensing points of the refrigerant with the selection of the compressor and metering device and refrigerant type.
Thxs to you sir
thanks
Very good
Damn good
Have a side by side KENMORE FRIDGE, THE FREEZER FREEZING BUT THE FRIDGE NOT COOLING NO VOOL AIR COMING THROUGH THE AIR VENT INTO THR FRIDGE. COULD SAY WHAT'S THE PROBLEM?. THANK you so much.
Daveanand Mohabir www.ifixit.com/Answers/View/217657/GE+refrigerator+gsh22sgress+Freezer+is+cold+but+fridge+is+not
Legend
well put
Nice tutorial. One question, is the Evap fan is using 75 degree air across the coil ? Is that like at 1st start up ?
75 degree air in and 55 degree out. Those are pretty standard conditions.
When you type HVAC/R online Jim Bergman’s face appears not all hero wear capes he’s the real MVP
In the above example what will be liquid line temperature
Am A/C man for 30 years now am now in d US but not no woh to reed or right
Please explain about liquid receiver how it works.
How does a fridge work?
Me: Yes
Best Video on CZcams on refrigeration for dummies (me)
Is the condenser removing the indoor heat as well as reducing the temp of the refrigerant from the compressor.
It is removing the heat from indoors as well as motor heat and heat of compression.
If the office is small, the pressured supposed to raise, so I think!
I was so confused in my class prior to this
Done in one. Everyone else who has tried to explain it step aside