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HVAC School
United States
Приєднався 18 вер 2016
HVAC School is an online source for content related to technician training in the fields of Air Conditioning, Heating, Ventilation and Refrigeration. We focus on real, applicable training for techs and contractors as well as general education resource for the industry.
"Flammable" Refrigerant Facts for Residential HVAC
In this training class, Bryan Orr from HVAC School provides key facts and information for HVAC technicians about the transition to mildly flammable A2L refrigerants like R-32 and R-454B being adopted for residential and light commercial systems. He covers the reasons behind the phase-down of higher global warming refrigerants like R-410A, the differences between A2L refrigerants and propane, similarities and differences compared to R-410A, changes to equipment and components, best practices for handling mildly flammable refrigerants safely, evacuation procedures, leak testing, and more. This is a must-watch for any residential HVAC tech getting ready to work on new A2L systems in the coming years. Bryan dispels misinformation and fear-mongering around these new refrigerants while still emphasizing the proper precautions that should be taken.
Buy your tickets or learn more about the 6th Annual HVACR Training Symposium at hvacrschool.com/symposium.
Read all the tech tips, take the quizzes, and find our handy calculators at www.hvacrschool.com/ or the HVAC School Mobile App on the Google Play Store (hvacrschool.com/play-store) or App Store (hvacrschool.com/app-store).
Buy your tickets or learn more about the 6th Annual HVACR Training Symposium at hvacrschool.com/symposium.
Read all the tech tips, take the quizzes, and find our handy calculators at www.hvacrschool.com/ or the HVAC School Mobile App on the Google Play Store (hvacrschool.com/play-store) or App Store (hvacrschool.com/app-store).
Переглядів: 12 688
Відео
Refrigeration Basics with Elliot and Bert Part 3
Переглядів 4,5 тис.18 годин тому
In Part 3 of the Refrigeration Basics series, Bert and Elliot take the classroom outside to apply what was covered in the previous lessons to actual HVAC equipment. They walk through the refrigerant circuit from the evaporator to the condenser, identifying each component and explaining the conditions of the refrigerant at each point. Bert provides hands-on demonstrations, having the techs feel ...
Scroll Compressors & Things to Check for Overheating with Jeff Kukert
Переглядів 3,9 тис.День тому
This video is one of the sessions from the 5th Annual HVACR Training Symposium: Scroll Compressors & Things to Check for Overheating by Jeff Kukert from Copeland. You can still purchase virtual tickets to ALL sessions at hvacrschool.com/events/5th-annual-hvac-r-training-symposium/. Scroll compressors compress refrigerant in the head, and high-side pressure is contained by the compressor's top c...
Refrigeration Basics with Elliot and Bert Part 2
Переглядів 6 тис.День тому
In part 2 of a series on Refrigeration Basics, Elliot and Bert team up to teach a class about how HVAC and refrigeration systems work. In this part of the class, they discuss the functions of the main components in the refrigerant circuit, states of matter, and how to interpret your temperature measurements with that knowledge. Part 1 is available at ua-cam.com/video/eKb_xbADAgA/v-deo.html&ab_c...
So you know how to fix it... Now how do you sell it? with Dominick Guarino
Переглядів 2,5 тис.14 днів тому
This video is one of the sessions from the 5th Annual HVACR Training Symposium: "So you know how to fix it... Now how do you sell it?" by Dominick Guarino. You can still purchase virtual tickets for ALL presentations at the 5th Annual HVACR Training Symposium at hvacrschool.com/symposium24. Dominick identifies our industry's issue with delivering substandard BTU capacity and explains how high-p...
Refrigeration Basics with Elliot and Bert Part 1
Переглядів 18 тис.14 днів тому
In part 1 of a series on Refrigeration Basics, Elliot and Bert team up to teach a class about refrigeration basics. They discuss the basic scientific principles that make HVAC systems work and how they work with the components most residential HVAC systems will have. There are four main components: compressor (high-temperature; pressure increaser), condenser (heat rejector), metering device (pr...
Introduction to Market Refrigeration for HVAC Techs with Matthew Taylor
Переглядів 4,3 тис.21 день тому
In this informative session from the 5th Annual HVAC/R Training Symposium, Matthew Taylor draws from his 25 years of experience in the supermarket world to provide an Introduction to Market Refrigeration for HVAC Techs. Matthew covers the key differences between residential/commercial air conditioning systems and the parallel rack refrigeration systems found in supermarkets. He explains how the...
Refrigerant Lines 3D
Переглядів 13 тис.21 день тому
Join HVAC expert Bryan Orr as he takes you on a visually stunning Refrigerant Lines 3D animated journey through the refrigerant lines of split system AC units and heat pumps. In this informative video, you'll gain a deep understanding of the four crucial refrigerant lines and how they relate to pressure, temperature, and the overall refrigerant cycle. Through detailed 3D animations, Bryan will ...
The Quality Installation Conundrum with Brian Feenie
Переглядів 1,7 тис.28 днів тому
This presentation is one of the sessions from the 2024 HVACR Training Symposium: The Quality Installation Conundrum with Brian Feenie. Technology has recently evolved to provide transparency; in the HVAC world, apps like measureQuick allow us to share important data with customers and educate them, which provides a lot of value and builds brand loyalty. Brian draws parallels between the automot...
Humility in Thought Leadership with Bryan Orr
Переглядів 1,4 тис.Місяць тому
This presentation is one of the sessions from the 2024 HVACR Training Symposium: Humility in Thought Leadership with Bryan Orr. Most of the symposium speakers are thought leaders; they are influential educators and mentors whose ideas and practices reach a large amount of people. To be truly effective, thought leaders need to have empathy and understand how others think; they demonstrate profes...
AC Types 3D
Переглядів 8 тис.Місяць тому
In this AC Types 3D video, we will go over the variety of AC system types and their common applications. Split AC systems and heat pumps generally consist of two main parts: an indoor unit (with an evaporator and metering device) and an outdoor unit (compressor and condenser) connected by linesets (the suction or vapor line and the liquid line). Heat pumps also have a reversing valve that can r...
3D How Refrigeration and Air Conditioning Works P1 - Components
Переглядів 40 тис.2 місяці тому
3D How Refrigeration and Air Conditioning Works P1 - Components
Fix Your Customer 1st, Then Fix Their System with Andy Holt
Переглядів 4,1 тис.2 місяці тому
Fix Your Customer 1st, Then Fix Their System with Andy Holt
Introduction to VRV/F Systems with Roman Baugh
Переглядів 26 тис.3 місяці тому
Introduction to VRV/F Systems with Roman Baugh
VCRTs with Tony Gonzalez at the Fieldpiece Booth
Переглядів 2,5 тис.3 місяці тому
VCRTs with Tony Gonzalez at the Fieldpiece Booth
Field Favorites at the Refrigeration Technologies Booth
Переглядів 2,6 тис.4 місяці тому
Field Favorites at the Refrigeration Technologies Booth
Communication Matters at Andy Holt's Booth
Переглядів 1,6 тис.4 місяці тому
Communication Matters at Andy Holt's Booth
Life Chats with Ed Janowiak at the ACCA Booth
Переглядів 1,1 тис.4 місяці тому
Life Chats with Ed Janowiak at the ACCA Booth
Load Calculations at the Kwik Model 3D Booth!
Переглядів 1,7 тис.4 місяці тому
Load Calculations at the Kwik Model 3D Booth!
The Legend Eric Kaiser at The TruTech Tools Booth
Переглядів 1,2 тис.4 місяці тому
The Legend Eric Kaiser at The TruTech Tools Booth
Leading With Intent At The Sauermann Booth
Переглядів 7604 місяці тому
Leading With Intent At The Sauermann Booth
Brand New Probe Sets at the JB Industries Booth
Переглядів 2,1 тис.4 місяці тому
Brand New Probe Sets at the JB Industries Booth
Zoomlocks & More at the Parker Sporlan Booth!
Переглядів 1,6 тис.4 місяці тому
Zoomlocks & More at the Parker Sporlan Booth!
Skills Competition at the NAVAC Booth
Переглядів 2,2 тис.4 місяці тому
Skills Competition at the NAVAC Booth
Recovery Machines at the NAVAC Booth
Переглядів 1,8 тис.4 місяці тому
Recovery Machines at the NAVAC Booth
Everybody's Favorite Tool at the INFICON Booth
Переглядів 2,1 тис.4 місяці тому
Everybody's Favorite Tool at the INFICON Booth
INFICON - Innovative & Disruptive: Here's What's New at the INFICON Booth
Переглядів 9934 місяці тому
INFICON - Innovative & Disruptive: Here's What's New at the INFICON Booth
Not even willing, this is more thumbs up.
Kalos Enterprises, HVACR School, greetings from Canada here, Mr. Bert, Mr. Elliot, Mr. Bryan. I appreciate a lot for the information. You guys get deep into this information. I would ask you gentlemen to do something for the northern side that is Canada in case there is anything. Well appreciated guys.
I see you're based out of Clairmont, FL. Are you teaching your own employees, or do other companies send technicians to you for training? If so, are there any companies from S. FL, like Broward and Palm Beach county that do?
I appreciate honestly debunking the claim thrown around about saving energy/utility cost with a soft start. I bought and installed a MicroAir Easystart for my heat pump after setting up a portable generator connection with interlock to my main panel. I think you may have neglected to mention, or at least didn't emphasize, the additional benefit of making start up audibly quieter. Matteo personally responded to my installation and operation questions since it was a new model. An engineer myself, I really appreciate his candor, responsiveness, and helpfulness. I'm a frugal guy, but feel really good about that purchase. Thanks for making and sharing this video. Great information, I like your styles.
Are you ashamed now with a few years of contemplation?
A joke manufacturers are making about factory installed TXVS on thier evaporator coils. Spring clips that seem to small tp properly hold TXV bulb on.. some manufacturers use plastic zip ties! No installation instruction or anything else included to properly attach bulb! Maybe use some duct tape also! Get even fancier.. metal foil tape!
If possible I will always go with a piston type metering device for residential AC. They fail after x amount of years always/ guaranteed to eventually fail. Same reason of why if we ever find a failed one that we do our best to replace with a fixed orifice. The 1/2 supposed SEER efficiency simply is not worth it for anyone if/ when thier TXV fails How about so many places that your stuck with an old 1/4" / 5/8" lines set that you can't change/ no one upgrades to correct size and also no one talks about how such affects a new systems performance/ efficiency and maybe also life span of new system?
Simply these gentlemen reorganized my big picture into the most detailed knowledge in less than a hour! Thanks a lot.
Because of the anti-R12 histeria, most consumer aerosol cans use flammable propellants. Even/especially food products often use flammable propellants. Inhalers are much more expensive and dangerous. But that's OK.
Thanks for making these videos!
i=C(dv/dt)
I have to ask: WHY does electrical resistance drip if physical resistance increases? I understand the inverse relationship between resistance and current, but I don’t get how physical resistance decreases electrical resistance. Edit: I get the example given with the heat strip, but the example of rough bearings slowing a motor or something similar, I don’t get how that reduces electrical resistance.
You are truly a blessing to this industry
You don’t need to use chemicals with this correct ?
not gonna lie, I was angered by this change and worried about the flammability. But I'm also not an expert in this field so thanks for the education! As a consumer, do I have to worry about lower reliability and higher costs (electricity, refrigerant, equipment) than R-410A? End of the day, that's what I care about
Government redistribution of wealth
Tim Taylor the tool man. Lmao. That's me. I want the best and fastest no exceptions
Can’t wait for this transition to complete so I can finally upgrade my r-22 seer 10 unit from circa 2000. Skipped 410a entirely 😅
Sounds like a guaranteed and great investment just stocking up on 410 right now. Might sell off some stocks and buy a warehouse of 410 tanks.
You forgot to mention no smoking while working on a system
This is a very helpful video. Graphics and step-by-step is great. This is my second time changing a condenser motor. It will be much easier following along and getting it done this time. I did not know about the condenser plug. Thanks.
I have purchased a Temperature Controller ERC213G online to replace the one in our compressor air dryer. After installation and testing, the controller is working fine. However, I need the defrost output to connect to a water drain valve, which is already connected. The problem is that I can’t find the menu O61, and the quick set menu is also not visible. Additionally, when I tried accessing the Parameter group “P”, it showed “non”. I need to set the defrost parameters for my use. Please consider my problem as urgent and provide the details for menu activation.
Excellent explanation and video production. Thank you!
Thanks for the teaching and I'm glad to be here cuz every information is of essence to me and I am a HVAC practitioner...from Liberia a western African Nation 🇱🇷🇱🇷
If the insides of my vents are sweating, that air space is already sealed and dehumidified. The entire system is in the crawls space (4 ft high cinder block walls, mostly closed with several vent openings). Should I encapsulatr the crawl space and run a small window AC during summer to cool that air slightly? I'm in North Alabama, very muggy and hot.
A friend of mine is a chemical engineer that lived through 40 years of these changes. He said it is NOT for the environment and never was. Twisted data on the effects of these chemicals was done deliberately. He said these changes keep the industry selling new equipment and the chemical companies like the one he was in management for, making new product.... He was very high up in a company you all would recognize. Our government is not what you think it is.
BINGO. Back when the Ozone problem was invented, R12 cost $1/lb in retail consumer sales. The stuff was used, as an example, for BB "machine guns" and to chill glassware for mixed drinks and so advertised on TV. Why so cheap? Off patent. Funny thing, the replacements were only manufactured when the maker paid a license fee.
I’m wondering what’s gonna happen when these guys start recharging 410 systems with 32 🥴
Bit of a shill vibe .
I HAVE FEW QUESTIONS; 1.WILL THIS REFRIGERANT REQUIRE DIFFERENT COILS? CAN WE USE CURRENTLY MANUFACTURED COILS BY JUST CHANGING PISTONS OR TXVS? ARE THERE PISTON CHARTS AVAILABLE FOR R32? 2. DIESEL EFFECT MEANS EXPLOSIVE, IF SOME INCOMPETENT TECHNICIAN INSTALLS AN AC WITHOUT PULLING A VACUUM AND CONDENSER GETS REALLY DIRTY UNDER A DECK WITH PRESSURES 500-600 (I HAVE SEEN IT MY SELF 650PSI ON MY GAUGES R410 WAS OVERCHARGED.) IMAGINE YOUR KIDS PLAYING NEXT TO IT…. 3. IF R22 HAS ONLY 0.055 GWP AND MUCH LOWER ODP THEN R410A WHAT WAS THE POINT OF PHASING OUT R22? CAN ANYONE EXPLAIN IT ? WHAT AM I MISSING? IS IT POLITICS MONEY OR WHAT? THANK YOU FOR SHARING GREAT VIDEOS!
I would express the utmost gratitude for sharing this content with the universe of inquiring minds. This is how we expand consciousness by enlightening each other through science informed education with a personal human touch via the internet of things 🙏
This is the most idiotic refrigerant they have come up with. Who going to be the first to die from this crap.
Has anybody noticed a lot of 5 to 10 year old evap coils that are leaking. Especially the aluminum coils. Are they going to start building the equipment better?
Your presentation is very informative and easy to understand thank you for sharing!
great info I didnt know what to do with the extra white wire, worked great thank you
You're not supposed to sweat the filter drier off but it's okay to braze it back on?
Yes, you are flowing nitro at that point You could flow nitro while you unsweat but pulling apart under flow is still not a great idea
I work in hot climate which outdoor temperature reaches 118 F in summer, So I charge the units in the peak by target superheat 5 to 8 F at the lowest possible indoor temperature the unit can achieve , Is this correct method?
35:44 Caddie Shack!🤣
Not to get political but if you don't like all these tyrannical mandates, vote very carefully in November.
Stud guards
You really know your stuff Bryan. We appreciate you explaining the significance of the new refrigerants that will become the industry standard.
I've spent the last couple of years doing commercial almost exclusively and only heard a little about this changeover, so was very nervous, but this video is very helpful. Thanks so much for great information and presentation, as always.
At 32:12 we call it nail plate.
Money laundry
😂 What do you think about pressure clamps ??
I’ve seen 2 ton infinity systems with 11 pounds factory charge what’s the total charge of 16 1/2 , 😮17 pounds that’s crazy
We have 5 ton system for 25 pounds of refrigerant circuit
This is a great video just what I needed I just recently started hvac schooling at AAI arizona and felt like I didn't under stand every thing like I could of then I found this video on you tube took notes as I was watching it I paused it rewind it a dozen times it took me about hour to watch this term min video but now I feel like I actually understand now thank you for explaining o it the way you did appreciate you much thanks
I'm in IT - watched the whole thing. You're a great presenter.
can i pull all my 410a out and direcrtly replace with r32?
We have 5 ton system for 25 pounds of refrigerant circuit
Maybe if they made the goddamn coils till last night leak, the 410 like a sieve, we wouldn’t be in this conversation😢😅❤😮
So was 134 @ now they’re using to 1234 XYZ