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Checking the R-410A Refrigerant Charge! What to Watch Out For!
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- Опубліковано 19 сер 2024
- In this HVAC Training Video, I Show all the Steps for Connecting In, Air Purging, Superheat, Target Superheat, Subcooling, Determining the R-410A Refrigerant Level, Compressor Safety, and Knowing What to Look for on an Air Conditioner! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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This brings back memories of being in the HVAC school when I was younger, glad these guys are learning to get into this trade.
Hello Craig and Brian, please write a book on HVAC electricity and troubleshooting. Show us all the electrical components and the control board. I will be the first to buy your book.
I’ll be the second one ☝️
I agree.
I will buy it ASAP.
Dear Craig, I really appreciate the time and effort that you put into accurate and excellent quality videos. I always learn so much from you. Everytime I learn something new from you, I crave to learn more. Videos are excellent because I play them over and over until I lock in on those key concepts. Thank you again from Johnsburg, Illinois.
The opioids and other opioids that
As a home owner, I have a better understanding of how a properly installed system should work. I'm not a technician by any means, but due to my Navy career I know certain systems need to be monitored. I brought a new construction home with the HVAC system mismatched and undersized 10 years ago. (1990 sq ft, 2 ton compressor, 3 ton coil). The company that installed the system never responded to my questions about the AC mismatch. Knowledge is power. After reviewing a few UA-cam videos, this one as well, I know I need a new HVAC system so I don't murder my compressor.
Thats not exactly a mismatch.. Back in the day that used to be pretty common in humid places AFAIK
@@tekjunkie28 You would ideally have a coil .5 ton over the condenser but 1. isn't completely out of range depending on other factors they likely don't have time to explain to every resident.
It doesn’t sound terrible, a lot of coils are oversized to sap more moisture out of the air. It has the ability to be more efficient too depending on the size of your ductwork and air restriction
@@davidthomas2585 I appreciate the information you provided. It occasionally gets humid here in California, nothing like Georgia or Florida where this would be beneficial. I have too many questions to burden you with. Besides Google where or what source can I use to be more knowledgeable about this so I don't get the wool pulled over my eyes when I need a new system?
thanks very much for helping people achieve their dreams. you are impacting lives all over the globe 🌎. I am Saidu sannoh from west Africa Sierra Leone. you are My mentor.
Thank you for watching my videos!
Another good HVAC video that makes you think about what is going on inside the A/C unit. The relationship between superheat with a fixed orifice tube & subcooling with a thermal expansion valve is an important concept to understand. Our gauges & temperature probes tell us what's going on inside the unit's evaporator & condenser. This I why I continue to watch your videos, they are great educational tools/reminders.
Great lesson, thanks.
what a privilege it be to be taught by Ty and Craig!
Your videos and information that you provide are priceless. You explain things very well!!! You get down to the “what” and “why”, without confusing anyone. Great job!!
Excelente lo espero muy pronto este video en español.gracias
You can turn on captions and also use auto translate for Spanish.
I would be very interested in seeing a series on geothermal heat pumps, especially purging the ground loops and measuring how much heat is dumped or sourced from the loops and the different refrigerant charge measurement strategy.
really good video to watch after reading through chapter 7 and working through the textbook
Thanks for the Lexi are been following you from Liberia
great video!
Really Helpful... Anybody could learn easily ❤
Thank you 💪🙏
I just would love to find a HVAC job in Norfolk Va I spent my entire life in this career, I don't know it all and willing to start over, I just want to go to work
Amazing instructor!
Great video, I screenshotted the helpful Suprrheat chart
Great videos 😊
Great Tutorial, thanks
Sir...thank u very much...i learned a lot from this topic ... I'm from the Philippines..More power..God bless..
As Always thank you Teacher Craig 👍👍 very informative and Helpful...... but this is Schooling 😅❤😂
Good stuff. Thank you for sharing.
I love these videos
Great content ! It is appreciated !
Great video, thank you!
I’m back in the classroom
I’m here for it
Great lecture. Thanks for sharing.
Beautiful how he use the PPE...
Gloves touching refrigerant / oil and then scrubbing nose and face... LoL
lol, didn't catch that, but I'm a shirt sleeve guy. I wreck all my shirts sweat and dirty face, learned that doing mechanical work and plumbing. grease and worse, you learn to not touch anything real fast and clean everything good.
POE oil is used for R 410a that is a great thing to look at to determine refrigerants! The oil!
Mineral oil used in R 22 !
very good
👍👍
The explanation A/c service Tec
👍👍👍👍 also they have en español
I love AC service tech passion and training videos, but why is the student just standing there behind the system? The best part of the class is when he told the "students" to relocate. That's one of my ground rules when I'm training students. I need your undivided attention, and that means all eyes on me.
Right meow
Awesome 😅😅😅th😊anks
So I gather getting techs from southwest over to south east may require some adjustments due to climate differences and accumulators?
Love videos, but i have a question about mobile refrigeration units. Is there a subcooling chart for refrigerants like 404a and 452a? Like for thermoking 1080s as an example that run from -20F to 80F. I usually rely on receiver drier site glass to see how much ball floats when running and look at resting pressure before i start unit. To check charge.
So, at subzero, setpoint the goal is to always try and keep superheat 6 or above no matter what ambient temps are? I was told If you have a txv, you don't go by superheat and that we go by subcooling. I don't have refrigeration training. I did like a week class through job to get a 608.
22:08 - Craig, Where did you get this formula? [(3 x WB) - 80 - DB] /2 Where did you get these numbers to calculate your chart?
35:39 - [(3 x 57) - 80 - 95]/2 = -4, so no target.
Great demo thanks for sharing
how this training works ? i am interested in training also
❤🐺🐺🐺❤
Do you do your book for the uk market
i was installing split ac that has r410a its single zoon 12000btu system. Durring installation I accidently open valve that lost some refrigrant. Now I am trying to figure out how much do I need to add back. It only has low pressure side port, if I am running AC on full in 80f outside I see pressure of 120 is that to much? what would be acceptable range in that case.
Is it a regular central split system or mini split? The central split system either goes by superheat or subcool. Which most modern a/c will go by subcool because the metering device is a TXV or EEV.
Most mini split manufactures will go by weighing in the refrigerant.
@@acomman77 its a mini split, my concern is i don't know how much refrigerant really lost so how much I refill.
@@sajjadakhter7261 the only way you can see how much you need to add is recover the refrigerant from the unit with a recovery machine and recovery tank. Read what the factory charge weight is on the nameplate of the unit. Pull a vacuum to at least 500 microns (the deeper the better). Weigh in the refrigerant with refrigerant scales to keep track of what you're weighing in.
If you opened the valve and the refrigerant sprayed for a few seconds, you'll be alright and probably don't need to add any unless the refrigerant line set is pretty long. Most mini splits can run pretty decent with 30% of its charge left believe it or not. EEVs metering devices are really efficient.
120 psig? If that's suction pressure, then you're pretty good tbh. Mini splits can handle an undercharge better than central AC systems. I've literally seen mini splits run pretty decent for a long time on 30% of it's charge left due to a bad flare.
Thomas Deborah Martin Kimberly Hernandez Helen
I can't stand this group of students. As an instructor for a different industry I can't stand when I ask a question & no one answers..... like the simple superheat chart questions....crickets...
And this is why women do not do this line of work. Last one in the room and even she booked it. Men--we are all on our own now.
What kind of brain defects….. been around refrigerant for over 30 years…. Never wore gloves
To wordy and trying to cram to much information into one session. You should stick to your subject line.
We’re just seeing a snippet of his full class, he has wonderful training. I have seen people use .5x speed to absorb and write notes though
In the United States? Explain yourself player. Not many countries have the forced air systems like here. Been following you for years but call it what it is bud. Air flow was not as big a factor or they didn't know as much about it as is now it's a big factor. They threw in duct work and that was that. Filters blower motors nowadays do not work well with duct work that was put in in the 60s or 70s.
This channel is in the US. Why just ask now if you follow Him for sometimes ❓❓❓. Every country is different Systems and how to do things
@@Honestandtruth007the way he said it was like he was implying something. Idk what but it was strange. He made sure he was heard the way he said. 🤔
Hello! Make this video in Spanish.
Hello! Use captions and auto translate to Spanish.
Why you never cover VRF systems...Don'g they exist in America!!!
From the UK and bought your book but never obtained information I have been longing for
Would you please do a video on how to carry out pressure leak test on a VRF system!!