Thank you, but YOU are responsible for all of that. You made the decision to change your life, you worked hard threw school, you worked hard to build the career. I'm just thankful I had the opportunity to be a part of it.
I love your videos. From my experience, not only is a leak responsible for low refrigerant, but techs before me, did not add enough and take into account the long line set. It never had enough refrigerant to begin with. I have seen this a lot.
Excellent explanation of why the indoor coil freezes. I wish I had this clear of an explanation when I started out many years ago. You touched on what many technicians do to try and solve the problem by overcharging the system. The only thing I would add is that by overcharging the system you back up liquid into the condenser coil and turn a high-efficiency unit into a low efficiency unit and the customer is now paying a higher electric bill.
Wow. Out of all the countless videos I have seen. This guy kills it. I spent hours watching other videos that I thought where great but took me so long to understand certain aspects. But after watching this I learned it all instantly. Maybe it’s the simple drawings? Ether way. Thank you so much.
Good tip on cleaning the evap coil AT THE SAME TIME as your condensor if they're both dirty. Didn't think about the effects of that but it makes sense !
Phenomenal segment on freezing. You have got to be one of the best teachers I have come across in this field. You leave next to no stones unturned. Anyone interested in this field who comes across these videos is fortunate.
Learned more in 23 minutes than a week's worth of study. A great instructor has a wealth of information, actual experience, and most importantly the ability to convey their thoughts into a form others can understand. Thank you! Although I did have to chuckle at "dethaw" which literally means to refreeze, although it is recognized as dialect and a completely acceptable word.
I'm studying HVAC/R at a community college and when I get home I look to see what Ty has to say on what I've studied that day. This guy is awesome. I'v learned a substantial amount more on his videos then I have in class. All I need is my certs from school.
school is great for introducing topics and youtube is great for actual understanding. our youtube community in hvac is truly blessed. Hvac school and AC service tech are also inedible.
Greetings from Dubai. Ty's lectures initiated me in learning more in HVACR. These classroom sessions are very informative. I really credit him and Brian Orr for imparting know how in the field with a seasoned technicians insight (which is very unique for an engineer like me).
excellent explanation Ty. I've been an HVAC/R contractor in TX and AZ for over 25 yrs. Great job and thanks for sharing. Great teaching and positive presentation!
Thanks for the video. The way you explain and the way you teach is fantastic. This the best video watched on HVAC basics on coil freezing. You also have your awesome experience and stories to share and teach. Thanks. Peace😊
Great explanation ! Had a frozen coil on a up flow unit located in a 3 story finished daylight basement home. Return air ducts on all 3 floors. Return air in finished basement was 63 degrees ! Covered that return to allow only return air from 2nd and 3rd floors and problem solved ! Duct work was sized OK so no worries on covering that one return grill.
Best video regarding freezing evap (although no fancy pics used) Most others I’ve seen never mention the low temperature problem. And the explanation that low pressure causes low SAT temp is easy to remember. Thanks Ty. May God continue to richly bless you!!
No AC system shoud be set bellow 70, thank you Mr. Ty i keep saying this to my commercial bulding's Tenants, and no one listen, next time i'll forward this video as answer for them emails, Thank you thank you thank you.
Once a customer has a frozen AC which only happened at night. It turned out the compressor contactor sometimes wouldn’t disconnected but inside blower motor stopped. At day time the temperature was high and the AC was running most of time, so AC frozen was not so bad, but at night the blower motor stopped longer time and the frozen ice reached out up to compressor.
5:06 - Recently, I responded to a no-cool service call at a local unit of a large restaurant chain. On the roof, I pulled the panels to reveal a push-pin/thumbtack taped with black plastic electrical tape pushing on the center of the contactor, holding the contacts closed. The evaporator and compressor of that RTU was covered in a block of ice. I defrosted the evaporator and compressor, replaced the low voltage transformer and got the unit functioning again. It cost me 48 dollars for the transformer.
HVAC Doctor, the system is contingent upon everything being clean & functioning properly really. Cleaning the interior air handler coil & exterior unit condenser radiator go hand in hand. I hate those paper filters, give me the electrostatic metal washable ones every time. Then the only thing that can fray for debris is the air handlers panel insulation. I've been using the metal one's for 4+ years, flushing the drain tube it took me a few minutes to realize that the pulpy debris was the panel insulation and that nasty mucous for bacteria & mold. I knew I had flushed it good 4+ years back when I converted to the metal air filters. The metal one's cost more, but buy 2 and you can rotate them, using a clean filter & rinsing the filthy one back to clean. The coil was pretty clean, outside of the galvanized steel cover that has rust for a 15 year old Heat Pump system in East coastal Central/North FL. Been a learning experience for sure.
Not sure if you monitor this but I'm going to ask you're opinion anyway to a Problem. Here it goes: The AC in my home worked fine. I came home from Vacation to find it very warm in home. it would not lower the inside temp. I called repair and He came and said he charged the unit a bit and all readings were good. Nothing changed. A week later he returned and stated we needed to replace the compressor. I have a Carrier with a Copeland with the Coating that was gumming up TXV. We replaced and That did NOTHING. He then stated we need to inject a cleaner to try to clean out the defective coating. Again, Nothing. Now he says we need to replace the TXV valve. He wanted to swap it out with a piston metering device but Carrier said this can't be done and we should replace the Evap Coil along with the TXV. I never had Evap Coil freeze. AM I getting ripped off? Couldn't they have diagnosed a bad TXV in the beginning? How could he tell me all readings were "Right On" when the system is obviously not working. I learned more in your videos that if I had the tools, I could have probably diagnosed the problem. I wouldn't be surprised if after spending near 1500$ it could have just been a clogged filter dryer.
Wow! I am sorry to hear that! So many points here. Copland used 3 different oil additives for rust inhibitors. They finally chose just one, the wrong one and with the right conditions it did clog up the TXV's. Was that the problem on yours? I have no idea. Without a full diagnostics report, there is no way to know. Mabe it was a sting of bad luck, or lack of training or who knows. I recommend to companies and students alike to perform a checklist. It will have all the numbers recorded for the both the home owner, the company and the tech. Now days there are apps like measure quick that communicate with instruments that generate a good deal of this. Compressors don't just die, they are murdered. If the cause is not identified it will happen again. Sorry for the late reply. Did you get it worked out?
6:38 There is another reason the customer is low on refrigerant. The technician before you didn't have low loss fittings on his hoses and had a negligent discharge while removing them.
Hi good day very good video well explain I been working on a split 5 ton unit cleaned it both inside and outside clean the blower fan and filter and noticed it was still freezing
We use to do new installing when they froze we put a 32degre temp sensor on the suction line if we had problems by the compressor. Never had a problem doing that 😉
Awesome video - super clear explanation. As I'm currently experiencing this issue, one thing I don't quite follow. In my case, the temperature at the ducts was about 60 degrees, and the coil was starting to freeze at the 1 hour mark (reduced flow), and complete freeze (no flow) at 2 hours. Tech came and recharged the system, said it was about half charge (added 4 lbs, R410A system). Ducts then blew at 57 degrees, and system worked great for 3 weeks without freezing up. Now the coil is freezing again, and duct output is 65 degrees (before coil freezes). Actually worse (higher) output temperature than initial problem - unclear of fault. But what is confusing to me is if the ducts are blowing out at such high temp (nowhere near freezing), how is the coil freezing?
Part 1 Temperature pressure relation. As the pressure drops the boiling point of the refregerant drops. Look up a pt chart for the refregerant you have and you can see the pressure temperature relation. Part 2 quantity Just because the temperature is low to start freezing does not mean there is enough quantity. Less refrigerant means less quantity, less capacity. It does not have the volume of boiling refregerant to absorb enough heat to drop the air temperature. Instead of an sir conditioner, it turns to an ice maker. Check out my play list learn hvac hvacr. It explains all the concepts that lead to this point.
Ty is the best teacher ever, I owe him the job I have today and the fact that I can provide for my family and have a decent life. Thank you Sr !!!
Thank you, but YOU are responsible for all of that. You made the decision to change your life, you worked hard threw school, you worked hard to build the career. I'm just thankful I had the opportunity to be a part of it.
@@love2hvacGood teachers are still worth their weight in gold!
May God bless this man , you're a blessing to humanity
Smartest man on TH-cam teaching HVAC.
Has helped me tremendously
Watching your videos is like watching a good movie. This is my 2nd or 3rd time and I never get bore. Thanks a lot
My AC froze up yesterday. Thanks for the video. Now I know you aren't supposed to set the temp to 68 and close half the vents hahaha!
thank you from an hvac dispatcher. i always love learning more about what i do.
I love your videos. From my experience, not only is a leak responsible for low refrigerant, but techs before me, did not add enough and take into account the long line set. It never had enough refrigerant to begin with. I have seen this a lot.
respect Boss your are the best teacher on my eyes, your teaching method very easy, thanks sir, this mohammad harun from doha, Qatar ❤❤❤❤❤❤❤❤
This is absolutely the BEST HVAC video for learning the system that I have ever seen. Thank you Mr Branaman!
Excellent explanation of why the indoor coil freezes. I wish I had this clear of an explanation when I started out many years ago. You touched on what many technicians do to try and solve the problem by overcharging the system. The only thing I would add is that by overcharging the system you back up liquid into the condenser coil and turn a high-efficiency unit into a low efficiency unit and the customer is now paying a higher electric bill.
Thanks Bill and you are 100% spot on about staking liquid in the condensor reducing efficiency. I need to do an update.
Ty is so badass he took Chuck Norris' beard away from him and now wears it just to mock him.
Haha..Yep!
Agree
I could be watching Netflix during shelter in place, yet here I am watching all of Ty's videos.
A much better use of your time.
Thank you Ty
here I am a year later watching the same video.
Man, finding old COVID comments is always so cringe 😂😂😂
Thanks for the lecture better than my Instructor at hvac school. And no interruptions from students
Wow. Out of all the countless videos I have seen. This guy kills it. I spent hours watching other videos that I thought where great but took me so long to understand certain aspects. But after watching this I learned it all instantly. Maybe it’s the simple drawings? Ether way. Thank you so much.
Good tip on cleaning the evap coil AT THE SAME TIME as your condensor if they're both dirty. Didn't think about the effects of that but it makes sense !
Phenomenal segment on freezing. You have got to be one of the best teachers I have come across in this field. You leave next to no stones unturned. Anyone interested in this field who comes across these videos is fortunate.
Learned more in 23 minutes than a week's worth of study. A great instructor has a wealth of information, actual experience, and most importantly the ability to convey their thoughts into a form others can understand. Thank you! Although I did have to chuckle at "dethaw" which literally means to refreeze, although it is recognized as dialect and a completely acceptable word.
Excellent lecturer. true professional. Second to non. Very rare this days.
Outstanding recommendations about the dirty coil service.
Now I comprehend why the evaporator freezes when there is low charge in the system. I finally got . God bless you, you're an awesome instructor!!
I'm studying HVAC/R at a community college and when I get home I look to see what Ty has to say on what I've studied that day. This guy is awesome. I'v learned a substantial amount more on his videos then I have in class. All I need is my certs from school.
school is great for introducing topics and youtube is great for actual understanding. our youtube community in hvac is truly blessed. Hvac school and AC service tech are also inedible.
Greetings from Dubai. Ty's lectures initiated me in learning more in HVACR. These classroom sessions are very informative. I really credit him and Brian Orr for imparting know how in the field with a seasoned technicians insight (which is very unique for an engineer like me).
i am not an HVAC guy but i feel like i could pass for one after all this info. Thank you!
Thank you
wonderful explanation; best instructor
You are the best teacher , makes learning technology with fun.
Great explanations. I’m nursing two 21 year old units and knowledge helps!
excellent explanation Ty. I've been an HVAC/R contractor in TX and AZ for over 25 yrs. Great job and thanks for sharing. Great teaching and positive presentation!
Wow, great explanation!!! I don't remember my instructor gave this much detailed explanation. Thank you!!!
Thanks for the video. The way you explain and the way you teach is fantastic. This the best video watched on HVAC basics on coil freezing. You also have your awesome experience and stories to share and teach.
Thanks.
Peace😊
I most say I graduated in 2018 and I’m always watching ty’s videos. Awesome teacher and a great person.
Great job Ty! Only someone with your knowledge and Passion could explain things this way!
Mr. Conor McGregor thank you so much for all your videos, the way you explain is just great !!!!!!!!!
Man’s gotta stay cool when he kicks so much ass.
Love how simple you make it for a beginning technician to learn and understand what he is learning.
This dude is fuckin awesome! 💯💪🏾
Great explanation ! Had a frozen coil on a up flow unit located in a 3 story finished daylight basement home. Return air ducts on all 3 floors. Return air in finished basement was 63 degrees ! Covered that return to allow only return air from 2nd and 3rd floors and problem solved ! Duct work was sized OK so no worries on covering that one return grill.
Best video regarding freezing evap (although no fancy pics used) Most others I’ve seen never mention the low temperature problem. And the explanation that low pressure causes low SAT temp is easy to remember. Thanks Ty. May God continue to richly bless you!!
Thank you, I will update it one of these days. God is great!
Always great information. Thank you so much!.
This was a great lesson. I still have no idea why my system is freezing but at least I know why it happens! 😅 ty sir.
No AC system shoud be set bellow 70, thank you Mr. Ty i keep saying this to my commercial bulding's Tenants, and no one listen, next time i'll forward this video as answer for them emails, Thank you thank you thank you.
I learned this 30 years ago, and this was a great refresher. These students are getting there money's worth from this course.
Cheers Ty Thank you
You’re brilliant at your job 🙏🏼❤️🙏🏼
Best teacher in the whole wide world
I totally agree!!!.
I agree
Excellent teacher
This is GOLD! Great job sir! And I appreciate you for making this video and summarizing it up! 🔥💪🏽
Amazing how you teach. So knowledgeable 👍🏻Thanks!
This guy is an awesome teacher. Two thumbs up.
man what of great video, lots of information out of one video God bless you than you very much
All teachers should be as good as you. Teaching is all about being able to communicate...
If students don't understand it's the teachers fault..
Once a customer has a frozen AC which only happened at night. It turned out the compressor contactor sometimes wouldn’t disconnected but inside blower motor stopped. At day time the temperature was high and the AC was running most of time, so AC frozen was not so bad, but at night the blower motor stopped longer time and the frozen ice reached out up to compressor.
Great video. I need to find a way to get to my evp coil to try to clean it. Unfortunately it round coil duck work.
does your coil has a door to access it?
Excellent explanation!
Great Content!!!keep the good work!Waiting for your new videos 👍
best teacher and A to Z nice explain
Thank you for the great content. Quality information like this is much appreciated by someone like me learning the trade.
Mr. That was an excellent explanation thank you so much
Great explanation. Thank you
5:06 - Recently, I responded to a no-cool service call at a local unit of a large restaurant chain. On the roof, I pulled the panels to reveal a push-pin/thumbtack taped with black plastic electrical tape pushing on the center of the contactor, holding the contacts closed. The evaporator and compressor of that RTU was covered in a block of ice. I defrosted the evaporator and compressor, replaced the low voltage transformer and got the unit functioning again. It cost me 48 dollars for the transformer.
Wow loved this, especially the final segment (cleaning inside and outside)
Much better description, than most others.
Well explain and needs to stay like that. 👌
Can you also speak on having an oversized A/C unit. this will also cause an A/C to freeze
Someone who knows what they're talking about. Good Video
Thank you so much for your times and videos.
HVAC Doctor, the system is contingent upon everything being clean & functioning properly really. Cleaning the interior air handler coil & exterior unit condenser radiator go hand in hand. I hate those paper filters, give me the electrostatic metal washable ones every time. Then the only thing that can fray for debris is the air handlers panel insulation. I've been using the metal one's for 4+ years, flushing the drain tube it took me a few minutes to realize that the pulpy debris was the panel insulation and that nasty mucous for bacteria & mold. I knew I had flushed it good 4+ years back when I converted to the metal air filters. The metal one's cost more, but buy 2 and you can rotate them, using a clean filter & rinsing the filthy one back to clean.
The coil was pretty clean, outside of the galvanized steel cover that has rust for a 15 year old Heat Pump system in East coastal Central/North FL. Been a learning experience for sure.
This is great!!! Thanks our server room AC just froze over and last night was the super cold compared to any other night recently.
Simply super and doing the great work
Thanks
Thank you
20:40 Wow Thank you Mr. Ty Branaman!
Very informative video. Thank you for sharing.
Incredible video, thank you
Very detailed explanation. Thank you
This guys a genius🙏🏽
My AC is frozen now, Ty!! This is so helpful!!
Not sure if you monitor this but I'm going to ask you're opinion anyway to a Problem.
Here it goes:
The AC in my home worked fine. I came home from Vacation to find it very warm in home. it would not lower the inside temp. I called repair and He came and said he charged the unit a bit and all readings were good. Nothing changed. A week later he returned and stated we needed to replace the compressor. I have a Carrier with a Copeland with the Coating that was gumming up TXV. We replaced and That did NOTHING. He then stated we need to inject a cleaner to try to clean out the defective coating. Again, Nothing. Now he says we need to replace the TXV valve. He wanted to swap it out with a piston metering device but Carrier said this can't be done and we should replace the Evap Coil along with the TXV.
I never had Evap Coil freeze.
AM I getting ripped off? Couldn't they have diagnosed a bad TXV in the beginning? How could he tell me all readings were "Right On" when the system is obviously not working. I learned more in your videos that if I had the tools, I could have probably diagnosed the problem. I wouldn't be surprised if after spending near 1500$ it could have just been a clogged filter dryer.
Wow! I am sorry to hear that!
So many points here.
Copland used 3 different oil additives for rust inhibitors. They finally chose just one, the wrong one and with the right conditions it did clog up the TXV's.
Was that the problem on yours? I have no idea. Without a full diagnostics report, there is no way to know. Mabe it was a sting of bad luck, or lack of training or who knows.
I recommend to companies and students alike to perform a checklist. It will have all the numbers recorded for the both the home owner, the company and the tech. Now days there are apps like measure quick that communicate with instruments that generate a good deal of this.
Compressors don't just die, they are murdered. If the cause is not identified it will happen again.
Sorry for the late reply. Did you get it worked out?
Where can we get this check list ??
Another brilliant video, Thank you !
Perfect information. Thanks a lot.
6:38
There is another reason the customer is low on refrigerant. The technician before you didn't have low loss fittings on his hoses and had a negligent discharge while removing them.
Best explanation 👍👍
Good simple explanation.
Hi good day very good video well explain I been working on a split 5 ton unit cleaned it both inside and outside clean the blower fan and filter and noticed it was still freezing
Simply the best!
Im not but I do appreciate the support!
I was lucky to have him as a teacher in ATI miami
Im currently taking the online class but this guy is good
wow, that was impressive! thank you
Great explanaition
We use to do new installing when they froze we put a 32degre temp sensor on the suction line if we had problems by the compressor. Never had a problem doing that 😉
Yes that is the freeze stat I was talking about.
Awesome video - super clear explanation. As I'm currently experiencing this issue, one thing I don't quite follow. In my case, the temperature at the ducts was about 60 degrees, and the coil was starting to freeze at the 1 hour mark (reduced flow), and complete freeze (no flow) at 2 hours. Tech came and recharged the system, said it was about half charge (added 4 lbs, R410A system). Ducts then blew at 57 degrees, and system worked great for 3 weeks without freezing up. Now the coil is freezing again, and duct output is 65 degrees (before coil freezes). Actually worse (higher) output temperature than initial problem - unclear of fault. But what is confusing to me is if the ducts are blowing out at such high temp (nowhere near freezing), how is the coil freezing?
Part 1
Temperature pressure relation. As the pressure drops the boiling point of the refregerant drops. Look up a pt chart for the refregerant you have and you can see the pressure temperature relation.
Part 2 quantity
Just because the temperature is low to start freezing does not mean there is enough quantity. Less refrigerant means less quantity, less capacity. It does not have the volume of boiling refregerant to absorb enough heat to drop the air temperature.
Instead of an sir conditioner, it turns to an ice maker. Check out my play list learn hvac hvacr. It explains all the concepts that lead to this point.
Scanner Paul Danner for troubleshooting cars and Ty for refrigeration. The ones to watch.
Brilliant and outstanding presentation.
Many thanks!
Great thank explanation thank you
Thanks, Nice explanation.
Excellent class 👏
Thanks 🙏🏾
Great stuff.
He is such a great teacher ❤️
Excellent!! Thanks 😊 🙏
Air flow! Thanks!
He broke this down!
Incredible video man!
Amazing tutorial!!!
BEST INSTRUCTOR
Thank you so much for all of your videos