Go all into commercial and industrial refrigeration . Leave the residential nightmare behind! You'll make serious bank. Either working for a company or on your own.
@@halverde6373even worse they're about to evacuate the dementia Wing🎉 and it's up to you to fix this unit that you've never seen before🎉 First Step spend 1 hour opening up ceiling accesses🎉 Step2 being told by the head nurse that it actually is in her office where you thought it would be but she assured you it wasn't 🎉 step 3 pray to the HVAC gods that the problems in the air handler so you don't have to go to the roof🎉
I got into the HVAC in the mid 70s , I was in the commercial refrigeration side of our shop. We served malls and restaurants. Man if we would have had access to a channel such as yours I would have become a well-seasoned tech much quicker. You do a great service to our industry. Keep up the great videos.
Very impressive 3D animations. Thank you very much. You're helping explain a mysterious couple of installations using Hi Lo valves & Copeland compressors in an unusual highly customized application (bus conversion), so I have to understand deeply rather than follow a recipe in a book.
As someone who doesn’t know anything about refrigeration, this was an amazing explanation. It answered a lot of questions and gave me a big inside in case I ever have to do refrigeration
Wow I love these 3D simulators. You can’t get much more accurate then this. As a Hvacr tech I am new to refrigeration and becoming more knowledged in resisdential but the next step is commercial refrigeration. Thank you for taking this time to ensure we understand these presentations
Thank you I have begun to focus more on the commercial side as of recently. I have done this to expand my options and skill set. I appreciate all that you do for the HVACR industry…… GOD bless you all,stay safe out there brothers….and remember to never rush to judgment. Thank You!!
I'd wire those two 120 volt, permanent split capacitor evaporator fan motors to a series parallel contactor that runs them in series during the off cycle and parallel during the cooling cycle. Permanent split capacitor fan motors run very well at reduced voltage, running slower, consuming less power, and running cooler. This will save energy, and reduce the heat load on the system, while still providing plenty of air circulation during the off cycle.
This was an excellent demonstration. Very helpful for me to understand better whats going on. I am also coming from residential air conditioning. Thank you!
This is such a great video! I’m very new to refrigeration, but at my work we have so many issues with the many many HVAC units, and several walk-in coolers. We can’t seem to find anyone that can reliably repair the walk-in units, they either say the entire unit needs replaced, or they try and fail over and over again. Talking to them it’s clear they don’t actually understand them, which makes it hard to work on them. I’ve taken over the maintenance as far as changing filters, keeping condensate drains working and pans clean, replacing start capacitors when they fail etc, so basically I do what I can before calling for help, then watch and learn what I can. I have installed smart thermostats everywhere, since the employees like to turn some units to heat while others are set to cooling, and now have it automated so if one is changed to heat, all the others do as well and vice versa. But this walk-in is driving me crazy, it seems to want to freeze up every week or so, I have widened the temperature setting so it stays off longer between runs giving it time to defrost more, which seems to be working, and also have sealed up a few air leaks where new lines were run in and not sealed up which seemed to help a lot according to the temperature sensor I’ve installed which logs as well so I can see the patterns. But, what this video has opened my eyes to is the fact that the outdoor unit NEVER turns off! So I will be looking into that when I get to work tomorrow, thanks so much for your effort.
This is such a great video…i have my cfessa certification course at the end of this week. Just refreshing from the bottom up and I’m so confident, thanks for this video. Definitely one to save while I’m in a pinch!
Great video. Thank you. It would be good mentioning that cut out at 5 psig is for reciprocating compressors and for scroll it has to be higher then 10 at least. Also for R404a refrigerant cut in of 15 psig is se to low and in most cases it goes in area 20psig and higher. Thanks again for amazing video.
Wouldn't the Cut-in pressure be 80 psi and the cut out pressure be about 70 psi with 404a? To maintain a box temp of 36F degrees? Assuming you have to use a Pt chart to set the pressures on the pressure control. 15 psi is about -22 with 404a. Seems a little low for a box temp of 36F
@Austin Burtch thermosta in this case is regulating temperature in side box by closing and opening soleoid valve. It is set that way that remove most of refrigerant from low side of the system. If thermostat is removed then low pressure switch would be set differently.
Oh yea lol I forgot about the t-stat in this situation 😂 I don't work on much refrigeration and the last one I worked on used the low pressure control to regulate the box temp not using a t-stat or pump down solenoid. Thank you for bouncing my brain back to Earth
Awesome video. I'm in the ac side of things but love to learn more. At 13:00 what's the point of the differential? Why not just have a cut in and cut out? I always get stuck at that (yes I have done small refrigerators when the customer asked).
Ok I think I got it. Because this is on the low side of the system so the compressor knows to come back on on a pressure rise. Correct me if I'm wrong.
Thanks for posting need I can visualize the step procedures, now that got me to go get a back up solenoid operated weight refrigerate scale its just one of those things to own two of! Love the lesson shows! All day I'm to words that teach me! 🙌
FYI - Not only refrigeration systems that have a pump down feature built into them, but many manufacturers such as APC, Bard, Liebert, Stulz, and Unlflair all do as well…
Thank you for making this video the time and attention to detail is amazing this will serve as a great reference for new techs and experienced alike! cheers gentlemen!
Hey Boss excellent breakdown, i have a question, I'm studying for a test which type of cartridge fuse used in a industrial refrigeration one time fuse, time delay fuse, tube fuse with reset or plug fuse with reset?
Is it me or what happen to a lot of your old videos? Especially the ones where I think it was Ed going over Manuel d and stuff? That was very helpful and useful.
Bravo!!!! That was an amazing demonstration!!! I love The attention to detail. HVAC School always delivers superheated content!🔥🔥
These 3-D animations are going to help a lot more techs it is so helpful to see what is actually happening. I wish more schools would implement this
Thank you
As someone who is transitioning to Commercial Refrigeration from Residential Service, I highly, HIGHLY appreciate this. Thank you so much.
Go all into commercial and industrial refrigeration .
Leave the residential nightmare behind!
You'll make serious bank.
Either working for a company or on your own.
Can you mentally handle 5 million dollars worth of product being lost or a nasty disease escaping the CDC if you fail?
I have.
Both times I fixed it.
@@halverde6373fuck yeah dude
@@halverde6373even worse they're about to evacuate the dementia Wing🎉 and it's up to you to fix this unit that you've never seen before🎉 First Step spend 1 hour opening up ceiling accesses🎉 Step2 being told by the head nurse that it actually is in her office where you thought it would be but she assured you it wasn't 🎉 step 3 pray to the HVAC gods that the problems in the air handler so you don't have to go to the roof🎉
FINALLY SOMETHING FOR OUR VISUALLY LEARNERS MUCH APPRECIATED
That was a brilliant presentation.
I agree. Great to see you here as well!
I got into the HVAC in the mid 70s , I was in the commercial refrigeration side of our shop. We served malls and restaurants. Man if we would have had access to a channel such as yours I would have become a well-seasoned tech much quicker. You do a great service to our industry. Keep up the great videos.
As an operating engineer this is a great way of learning and educating video. Thank you once again
Very impressive 3D animations. Thank you very much. You're helping explain a mysterious couple of installations using Hi Lo valves & Copeland compressors in an unusual highly customized application (bus conversion), so I have to understand deeply rather than follow a recipe in a book.
Just wow as a student of a trade and not understanding the teacher that much this is helping me sooo much, we need more like this 3Ds😊
A visual video like this on for an economizer or even a safety circuit on a rooftop unit would be great!
As a residential guy in refrigeration now, this was a big help. Had a bad first day thinking too much like a AC guy.
I just started in the commercial side and these videos are on points especially for someone green like me lol
As someone who doesn’t know anything about refrigeration, this was an amazing explanation. It answered a lot of questions and gave me a big inside in case I ever have to do refrigeration
I'm in Miami
Appliance Repair technician. Mostly refrigerators. I want to become an AC technician. A lot. Best chanel!
You mean refrigeration technician
Best video on TH-cam on the subject.
Wow I love these 3D simulators. You can’t get much more accurate then this. As a Hvacr tech I am new to refrigeration and becoming more knowledged in resisdential but the next step is commercial refrigeration. Thank you for taking this time to ensure we understand these presentations
One of the best if not the best video explaining the Automatic Pump Down System, Thank you very much!
Thank you I have begun to focus more on the commercial side as of recently. I have done this to expand my options and skill set. I appreciate all that you do for the HVACR industry…… GOD bless you all,stay safe out there brothers….and remember to never rush to judgment. Thank You!!
Keep up the great work brother :)
I'd wire those two 120 volt, permanent split capacitor evaporator fan motors to a series parallel contactor that runs them in series during the off cycle and parallel during the cooling cycle. Permanent split capacitor fan motors run very well at reduced voltage, running slower, consuming less power, and running cooler. This will save energy, and reduce the heat load on the system, while still providing plenty of air circulation during the off cycle.
It will be cool to show how to troubleshoot the critical components on this systems,
Great video!
Excellent demonstration and explanation, thank you
By far the most detailed video on how a pump down refrigeration works thank you. Keeeeeeeeep them coming
Very useful video, perfect explanation, and thank you so much for that 3D
THAT WAS AWESOME!!!! THANK YOU SO MUCH FOR THE VISUAL, VOCAL ILLUSTRATION!!! MUCH VALUED!!!
I really appreciate the information you are putting out for the hvac community. Please keep doing this videos i love it.
What a fantastic video the 3d models are highly detailed and realistic kudos!
Very good basic refrigeration video
Absolutely the best illustration available! Thank you.
👏👏👏👏 Wow, great job. Thanks for all you guys are doing for this wonderful trade.
great video, really truly-- great job with he voice over work Corey
Thanks!
Amazing 3D-illustrations! Excellent presentation! THANK YOU!
I think I would be really cool if you made these type of animations to help people understand and read schematics.
Thanks for the 3D presentation
I'm just watching again after sending it to one of our guys. I'm not sure if I commented before, but this is a great demonstration.
This was an excellent demonstration. Very helpful for me to understand better whats going on. I am also coming from residential air conditioning. Thank you!
This is such a great video! I’m very new to refrigeration, but at my work we have so many issues with the many many HVAC units, and several walk-in coolers. We can’t seem to find anyone that can reliably repair the walk-in units, they either say the entire unit needs replaced, or they try and fail over and over again. Talking to them it’s clear they don’t actually understand them, which makes it hard to work on them. I’ve taken over the maintenance as far as changing filters, keeping condensate drains working and pans clean, replacing start capacitors when they fail etc, so basically I do what I can before calling for help, then watch and learn what I can. I have installed smart thermostats everywhere, since the employees like to turn some units to heat while others are set to cooling, and now have it automated so if one is changed to heat, all the others do as well and vice versa. But this walk-in is driving me crazy, it seems to want to freeze up every week or so, I have widened the temperature setting so it stays off longer between runs giving it time to defrost more, which seems to be working, and also have sealed up a few air leaks where new lines were run in and not sealed up which seemed to help a lot according to the temperature sensor I’ve installed which logs as well so I can see the patterns. But, what this video has opened my eyes to is the fact that the outdoor unit NEVER turns off! So I will be looking into that when I get to work tomorrow, thanks so much for your effort.
Make sure the door seals are good and leaving the door open for long periods will freeze it up too
This is a great video and animation, thank you for taking the time to share this with the world, we need more technicians in this industry!
That was great. Thanks to all who helped put this together.
Man! This is great schooling. Way to to go guys. Everyone be safe out there. Very helpful some calls can be a random account with a walk in box 😅
So cool no pun intended.
I actually can comprehend that theory now. Thank you.
this is so good that even I as only a residential HVAC guy can understand it.
Very good thank you guys 🙏🇺🇸🙏
Fantastic! I wish these videos were around when I was in school.
I love these 3D videos. Great, as usual. Nice work, guys.
This is a fantastic rundown on pump-down system. Great job guys.
You guys are doing God’s work..thank you for this.
You guys crushed it
Omg! This is the coolest thing ever! Love the 3D simulations and there is so much good information in here. Thank you
This is such a great video…i have my cfessa certification course at the end of this week. Just refreshing from the bottom up and I’m so confident, thanks for this video. Definitely one to save while I’m in a pinch!
Great video. Thank you. It would be good mentioning that cut out at 5 psig is for reciprocating compressors and for scroll it has to be higher then 10 at least. Also for R404a refrigerant cut in of 15 psig is se to low and in most cases it goes in area 20psig and higher. Thanks again for amazing video.
Wouldn't the Cut-in pressure be 80 psi and the cut out pressure be about 70 psi with 404a? To maintain a box temp of 36F degrees? Assuming you have to use a Pt chart to set the pressures on the pressure control.
15 psi is about -22 with 404a. Seems a little low for a box temp of 36F
@Austin Burtch thermosta in this case is regulating temperature in side box by closing and opening soleoid valve. It is set that way that remove most of refrigerant from low side of the system. If thermostat is removed then low pressure switch would be set differently.
Oh yea lol I forgot about the t-stat in this situation 😂 I don't work on much refrigeration and the last one I worked on used the low pressure control to regulate the box temp not using a t-stat or pump down solenoid.
Thank you for bouncing my brain back to Earth
@@austinburtch5972 got me at first as well was just going to ask about that
@@austinburtch5972pump down solenoid to evacuate the evap when temperature is achieved.
I enjoyed this video so much.
Can you do the same thing with a commercial Package unit.
Thank you
Thank you for the video! Do you have a second part of the walk-in cooler?
That is how you show the proper operation of a medium temperature cooler. 🎉
Best video out there on this!!!
This is top notch video-what an excellent job!
What a great video HVAC School , I am pretty sure a lot of people including me appreciate the work put into making this video !!!
Awesome video learned a lot about the wiring and sequence of operations with this video
This is absolutely amazing thanks for the Gem 💎
Awesome video. I'm in the ac side of things but love to learn more. At 13:00 what's the point of the differential? Why not just have a cut in and cut out? I always get stuck at that (yes I have done small refrigerators when the customer asked).
Ok I think I got it. Because this is on the low side of the system so the compressor knows to come back on on a pressure rise. Correct me if I'm wrong.
This one was a good one. Very well pictured, very detailed and very well explained.
Very good content! Do you have something similar for walking in freezer sequence of operation?
By far the best explanation of the refrigerant cycle! 😮👍🏼 Love the animation also ❤️💙
This video is going to help change peoples lives. This information is crept very secretive amount veterans in refrigeration.
Amazed by this video. Thank you. ❤
that was the best explanation video i have ever seen
Thanks for posting need I can visualize the step procedures, now that got me to go get a back up solenoid operated weight refrigerate scale its just one of those things to own two of! Love the lesson shows! All day I'm to words that teach me! 🙌
This is great. Sending this link to my work team.
Very good demonstration thank you this helped me understand
Extraordinary teaching! Keep up the good work ❤
FYI - Not only refrigeration systems that have a pump down feature built into them, but many manufacturers such as APC, Bard, Liebert, Stulz, and Unlflair all do as well…
Great video! Hope you cover more refrigeration sytems. Would love to see low temp and modern EEV systems. You people are the best at education.
Awesome video!
It really explains the sequence of operation
Thank you so very much for your effort making this video. It is the best video I’ve seen. Great work.
A M A Z I N G L Y GORGEOUS......WE LIKE YOU GUYS THANK YOU AGAIN KEEP UP 😊
Thank you for making this video the time and attention to detail is amazing this will serve as a great reference for new techs and experienced alike!
cheers gentlemen!
Hello , here in miami fl , thanks for the video
This video is awesome, helped me a lot thank you so much guys
Nice video. I do facility work now and find these very helpful.
After pump down, doesnt the refrigerant migrate from the high side to the compressor?
The liquid is trapped inside the Receiver. They tend to be sized to hold the entire charge.
@@EverythingisFire but it has a path back to the compressor so wouldn’t some of it travel back?
Hey Boss excellent breakdown, i have a question, I'm studying for a test which type of cartridge fuse used in a industrial refrigeration one time fuse, time delay fuse, tube fuse with reset or plug fuse with reset?
clear and simple .. great job .. BIG thank you
Excellent,Excellent MASTER!!!!!
Thank you!
well done gentlemen
Brilliant video, thank you!
This is awesome!! Can we get one for a 404a walk in freezer?
Watching from miami Florida
Awsome ! can you make the same video with a freezer ? With all defrost information
amazing demonstration Bryan. Can you go over normal operating pressure/saturation temperature in walk in coolers and freezers? Thanks man
Very well made and informative video!
Amazing guys! Great Work ! Just Fantastic! Thanks guys! Well Done!👍💯
Great video, thanks for such a good presentation👍🏼
Very well explained 💯👏🏼
Thanks, Corey👍🏾
in this system where did you put the on and off pushbutton? is it series on the thermostat?
Awesome!
Masterpiece ❤
Is it me or what happen to a lot of your old videos? Especially the ones where I think it was Ed going over Manuel d and stuff? That was very helpful and useful.
Wow. This is good. Thank you.