www.acservicetech.com -Our E-book, Paperback, Workbook, Quick Cards, PowerPoints: www.acservicetech.com/store -Posters, Book, Workbook, Cards on Amazon: www.amazon.com/shop/acservicetech -Our E-book: play.google.com/store and iTunes and search "ac service tech" -Posters & PowerPoints on our Website: www.acservicetech.com/store -Spanish Paperback and E-book: www.acservicetech.com/libros-en-espanol -Thermostat Wiring Quizzes www.acservicetech.com/quizzes -Our Website has FREE Videos, Calculators, Podcasts, Articles, Tips, Quizzes, Q/A: www.acservicetech.com -Facebook Tips: facebook.com/acservicetech -Tools we use, Our Book, Workbook, and Quick Cards: www.amazon.com/shop/acservicetech -Join our updates list for an email strictly from us for new videos, articles, products and website features!
I must say you make the most clear, best videos. I’m a dentist and purchased your paperback two years ago and use it regularly. The book is as great as your videos. Clear, concise and full of info. Thanks for sharing your knowledge
This is a good man I wish I had him when I was 16 years old I'm an old man now and I can just enjoy his videos and I'm still learning a lot but there's a lot of people out there that are interested in what he's saying but one thing is very important you have to love what you doing if you don't love what you're doing stay out of the business if you're in the business for money it's good but you got to have the love
Terrific presentation and a great philosophy of having the students understand as much as they can to be better prepaired for jobs in the field. There used to be a philosophy of guarding information figuring that the younger ones would take their jobs or something. Pete Larsen
Thank you for what you're doing, brother. You have been able to make a lot of clear sense in matters that my instructors haven't been well enough to illustrate to our classes. I'm green to this field as are the others in my classroom and you make more familiar what we have only read and discussed. You're greatly appreciated
In "a" gang school for submarines in the navy, about to go through refrigeration next week. Im 2nd in the class so far in a very tight battle with 1st, a dude who was a mechanic before we signed up as well as hvac certified. It is my soul purpose rn to beat him lol so i hope this helps😂 wish me luck guys
One of the best places to start is if there is a night school adult course at your local county technical high school. Watch as many videos as you can, thanks!
The key concept is this idea from Physics called latent heat when a substance changes state.This took me ages to grasp the idea that say liguid water at 1atm will stay at 100 deg C while boiling yet heat is constantly going in while this phase change is occuring is quite counter intuitive . The reverse is suprising as well water vapour condensing to liguid state heat will leave the gas without reducing the temperature of the water vapour gas as the heat flows into the surrounding cooler environment. Producing liguid water.
With all due respect to the gentlemen teaching this class, I would suggest you use simple terms and examples. As a retired engineer, the professor who taught this subject years ago used water as the chosen refrigerant. All can relate to the boiling of water and visualize the change of state to water vapor. A further explanation of boiling water in a closed loop system is then the only way to created super heat. Just my humble suggestion. As always, a great presentation
Wasn't as clear as I'd have hoped but I persevered... watching it a few times. I noticed you throw in incidental information which is good info but also detracts from the overall progress of your explanation. Having notes or putting up a list of things to go through in correct ORDER may help this apparently random collection of useful information. I had to go outside your explanation to find out the terms subcooling superheat and saturated. I also note that the best piece of information you gave in the whole video was that we actually are interested vin temperature at the Centre of the two coils, but it's hard to access, so we gather that from the pressure readings on the lineset and convert to temperature. That is what made me understand.. Not trying to be overly critical bit the extras you put in are detracting from what you are trying to convey overall. Things like whether it's a tx valve or not and which is more efficient ..is good information but it sidetracked your flow of information and that loses our concentration.
I keep my machanical temp gauges...90% of the time a simple temp dial gauge is tried and true. Even Though I came out as Testo wireless prop man with fieldpiece hs36 meter with multi heads for that meter!
2 AVENGERS REUNITED!!!😎 FIND THE OTHER 2!!! Train some technicians, and open a school at Houston, Im number one enlisted!!! And open another one ,and another!!!😎🎯Craig and Bryan!!!
Finally i see a girl in class she sitting away from all the men lol that was me in my class in school no lie but it was cool so glad im almost done with school thank God.
very helpful prior to my colleges program, thank you. Lol at the comments over a mask, at least you were even in a physical class. Last three semesters have been 100% online, thanks again tho!
You know, I remember decades ago when I got into the trade? I thought to myself you don't technically need a condenser outside because if you set up your compressor in the house, you could have it run into a pressurized vessel like a water heater, heat up the water. That's inside at the same time. As it changes state, it can be used by the system. And then, at the same time, it can return into the top of that vessel. And you would have a complete cycle without ever having a condensing unit outside. So no matter what the outdoor temperature is, you wouldn't care because you're just heating your hot water heater. And cool in the water at the same time in a continuous cycle. No one ever listens to people when they have great ideas like this
The refrigerant is at a higher temperature than the outside air so the air cools the refrigerant because heat moves from hot to cold. Something must release heat in order to condense as a liquid is a lower energy state than a vapor. The outside air is cooling the refrigerant so it can condense into a vapor. What really helped it make sense to me is when I realized that heat is related but is not the same thing as temperature. Heat is energy, temperature is the intensity of that energy. I like to think of temperature as the density or concentration of heat. The terms hot and cold refer to temperature, not heat. The compressor pressurizes the refrigerant which increases the temperature. It does not significantly change the amount of heat in the refrigerant, it just forces it into a smaller area which increases its concentration (temperature). And since heat moves from high temperature to low temperature the air will cool the refrigerant therefore increasing the heat in the ambient air but decreasing the heat in the refrigerant. The condenser allows for effective heat transfer from the refrigerant to the ambient air. The opposite occurs at the metering device and evaporator. The metering device depressurizes the refrigerant, same amount of heat just in a larger are so the concentration (temperature) is decreased. Now the refrigerant is colder than the inside air and so heat will flow from the inside air to the refrigerant. This cools off the air but heats up the refrigerant, the evaporator helps this process. An air conditioner does not "create" cold, it moves heat by cleverly changing the temperature so heat moves in the direction we want.
Hi this is Francis from Ghana. I have been following your page two years now. Thanks for sharing. My question,, why Sometimes air conditioner suction line become ice. what are the causes.thanks
Was amazing after watching lots of video I just got the idea of superheat and subcooling, is there any way to have access to all videos of this apprenticeship class? Even if it for sales
Joey, we have those PowerPoints available on our website at www.acservicetech.com if your school is interested in using them, thanks! I am glad you enjoyed the video!
Is the refrigerant flow direction correct on the slide around 6:45? I would think the evaporator transfer the cold from the line, so it would return warm/hot to the outside unit? I am just starting learning.
I enjoyed your video it was very informative but the bottom line is this average pay for this job is 45000 a year you cannot support a family of 45000 a year.
You are absolutely, 💯 % right. If you’re interested, learn the basics as the knowledge carries over to all aspects of refrigeration and find a niche in your area. Compete against the bigger companies as you can undercut them and still make a good living. $80,000.00 to $90,000.00 is not an unusually high salary for what I have described
Man, my class is nowhere near as modern. We have a lab but not of this magnitude. We are doing our learning primary through text books and lectures. It's a bummer because I know how things work but no actual experience
Hello. Is "sub-cooled" refrigerant any refrigerant that is not in "superheat" state? Like is superheat a name for "vaporized refrigerant" and subcooled is another name for "liquid state refrigerant" could I think of it this way? or is it a mistake to think that way? Or does subcooling only entail the distance from the metering device into the evaporator coil until refrigerant flashes up into a vapor state superheat? Thank you.
What would happen if you tightly covered the condenser with a large cloth, would the system operate efficiently and as designed? No it wouldn't, the same applies to humans constantly covering their own airflow. We weren't designed to constantly wear masks.
Believe me, I get it!! The sad part was this was actually a college in Florida and they wouldn't let me teach without one at this early part of that pandemic.
www.acservicetech.com
-Our E-book, Paperback, Workbook, Quick Cards, PowerPoints: www.acservicetech.com/store
-Posters, Book, Workbook, Cards on Amazon: www.amazon.com/shop/acservicetech
-Our E-book: play.google.com/store and iTunes and search "ac service tech"
-Posters & PowerPoints on our Website: www.acservicetech.com/store
-Spanish Paperback and E-book: www.acservicetech.com/libros-en-espanol
-Thermostat Wiring Quizzes www.acservicetech.com/quizzes
-Our Website has FREE Videos, Calculators, Podcasts, Articles, Tips, Quizzes, Q/A: www.acservicetech.com
-Facebook Tips: facebook.com/acservicetech
-Tools we use, Our Book, Workbook, and Quick Cards: www.amazon.com/shop/acservicetech
-Join our updates list for an email strictly from us for new videos, articles, products and website features!
I am going to join a HVAC school, I have NO previous knowledge. These videos are very helpful to start learning from.
Excellent class. Understanding exactly how the system operates makes diagnosing problems much easier and faster.
Absolutely! That's what its all about!
I must say you make the most clear, best videos. I’m a dentist and purchased your paperback two years ago and use it regularly. The book is as great as your videos. Clear, concise and full of info. Thanks for sharing your knowledge
Wow, thank you!
This is a good man I wish I had him when I was 16 years old I'm an old man now and I can just enjoy his videos and I'm still learning a lot but there's a lot of people out there that are interested in what he's saying but one thing is very important you have to love what you doing if you don't love what you're doing stay out of the business if you're in the business for money it's good but you got to have the love
You are a sharp guy and a great teacher, I hope they realize that and learn! Good job man! 👏
I appreciate that!
Lucky students to have you as their instructor!!!
Seriously I took a 9 month course and felt like it wasn't long enough
Great job Craig. Love your great passion for the trade and your skill and ease of conveying your knowledge.
I appreciate that!
This was extremely helpful to me as a new tech. Thank you so much for sharing your knowledge 👍🏼 love your vids
Thanks for watching!
Me as well since I’m in HVAC school currently
@@P9rkour90 how's it going???
I wish I would have had the advantage of learning in this manner back in 1973. I wonder how much that Danfoss simulator cost. Love this clip!
This was very informative...I learned more from this then 1 year in school.
What school did you go to?
Terrific presentation and a great philosophy of having the students understand as much as they can to be better prepaired for jobs in the field. There used to be a philosophy of guarding information figuring that the younger ones would take their jobs or something.
Pete Larsen
I like your program
I am 59 years old
But I am very intrested in Hvac
Thank you.
Thank you for what you're doing, brother. You have been able to make a lot of clear sense in matters that my instructors haven't been well enough to illustrate to our classes. I'm green to this field as are the others in my classroom and you make more familiar what we have only read and discussed.
You're greatly appreciated
So glad to hear that this helps! Thanks!
The first language I spoke after my own was English, and my country speaks it and loves it. It is my favorite
In "a" gang school for submarines in the navy, about to go through refrigeration next week. Im 2nd in the class so far in a very tight battle with 1st, a dude who was a mechanic before we signed up as well as hvac certified. It is my soul purpose rn to beat him lol so i hope this helps😂 wish me luck guys
How did it go? Did you beat him?
Thank u very much , i appretiate wht u re doing to teach people hw to do it . And the BOOK too is very very good . Thank u again 👍👍👍👍
You are very welcome
I wish there were more programs like this. Idk where to start.
One of the best places to start is if there is a night school adult course at your local county technical high school. Watch as many videos as you can, thanks!
Enjoyed the class. Thanks for sharing.
Thanks Dean!
Good. One. I wish this would have been in 2011 when I started. But there's always something new to learn
The key concept is this idea from Physics called latent heat when a substance changes state.This took me ages to grasp the idea that say liguid water at 1atm will stay at 100 deg C while boiling yet heat is constantly going in while this phase change is occuring is quite counter intuitive . The reverse is suprising as well water vapour condensing to liguid state heat will leave the gas without reducing the temperature of the water vapour gas as the heat flows into the surrounding cooler environment. Producing liguid water.
What a wonderful training class!
With all due respect to the gentlemen teaching this class, I would suggest you use simple terms and examples. As a retired engineer, the professor who taught this subject years ago used water as the chosen refrigerant. All can relate to the boiling of water and visualize the change of state to water vapor. A further explanation of boiling water in a closed loop system is then the only way to created super heat.
Just my humble suggestion. As always, a great presentation
This is what I do, too. But hey, we're engineers.
Ciao, sono un collega HVAC, ti chiedo la cortesia se puoi attivare i sottotitoli in Italiano, ti seguo da un anno, sono tuo fan, bravo e grazie
Wasn't as clear as I'd have hoped but I persevered... watching it a few times.
I noticed you throw in incidental information which is good info but also detracts from the overall progress of your explanation. Having notes or putting up a list of things to go through in correct ORDER may help this apparently random collection of useful information.
I had to go outside your explanation to find out the terms subcooling superheat and saturated. I also note that the best piece of information you gave in the whole video was that we actually are interested vin temperature at the Centre of the two coils, but it's hard to access, so we gather that from the pressure readings on the lineset and convert to temperature. That is what made me understand..
Not trying to be overly critical bit the extras you put in are detracting from what you are trying to convey overall. Things like whether it's a tx valve or not and which is more efficient ..is good information but it sidetracked your flow of information and that loses our concentration.
Well said. Agreed
I graduated from Raritan Valley CC.. They have a great program Paul F is the best at teaching!!
I love how the condenser is a RUUD and the Furance is a Goodman!!
I did not hear him explain the old guys love sight glasses as well...I am not old but I enjoy a site glass when possible.
I keep my machanical temp gauges...90% of the time a simple temp dial gauge is tried and true. Even Though I came out as Testo wireless prop man with fieldpiece hs36 meter with multi heads for that meter!
It's central adaptation, I haven't learned that yet, I like it
Wow a lot to process but u definitely make it easier. Thx
Happy to help!
2 AVENGERS REUNITED!!!😎 FIND THE OTHER 2!!! Train some technicians, and open a school at Houston, Im number one enlisted!!! And open another one ,and another!!!😎🎯Craig and Bryan!!!
Outstanding super class
Thanks a lot Silvio!
Great class, would appreciate seeing more
Thanks, will do!
I like how you teach bro, where is this a/c school located and state?
Near Orlando Florida would be my guess. That's where his business is at atleast.
Might be New Jersey
@@dakotabangdb There is a cape may county New Jersey
@@JaredVal13 You're right. It's NJ area. I got confused with Craig being a guest teacher at the hvac school in FL in this video.
17th and Bristol
Finally i see a girl in class she sitting away from all the men lol that was me in my class in school no lie but it was cool so glad im almost done with school thank God.
Nice way2go😉
great information
Glad you liked it
do you have the refridgeration cycle chart too
Thank you for the information. I have purchase your books and cards.
Wonderful!
Thanks so much for teach me ,God bless you 👍
May The Lord Bless you too! Thanks John!
very helpful prior to my colleges program, thank you. Lol at the comments over a mask, at least you were even in a physical class. Last three semesters have been 100% online, thanks again tho!
You're very welcome!
Great class 👍👍
Glad you enjoyed it
Thanks for sharing your knowledge much appreciated
Glad it was helpful!
Thanks for posting this video!
You bet!
Wow, well done!!!! Thanks!
Thanks for watching!
Great information !!
Glad you think so!
You know, I remember decades ago when I got into the trade? I thought to myself you don't technically need a condenser outside because if you set up your compressor in the house, you could have it run into a pressurized vessel like a water heater, heat up the water. That's inside at the same time. As it changes state, it can be used by the system.
And then, at the same time, it can return into the top of that vessel.
And you would have a complete cycle without ever having a condensing unit outside. So no matter what the outdoor temperature is, you wouldn't care because you're just heating your hot water heater. And cool in the water at the same time in a continuous cycle. No one ever listens to people when they have great ideas like this
Great video, thank you so much for teaching
Glad it was helpful!
Tropic supply is the best hands down
.I appreciate you
With you Hvac is sweeter
You're a great teacher
So is the hot air outside allowing the condenser to warm up the refrigerant and turn it into a liquid im not sure I’m confused lol
The refrigerant is at a higher temperature than the outside air so the air cools the refrigerant because heat moves from hot to cold. Something must release heat in order to condense as a liquid is a lower energy state than a vapor. The outside air is cooling the refrigerant so it can condense into a vapor.
What really helped it make sense to me is when I realized that heat is related but is not the same thing as temperature. Heat is energy, temperature is the intensity of that energy. I like to think of temperature as the density or concentration of heat. The terms hot and cold refer to temperature, not heat. The compressor pressurizes the refrigerant which increases the temperature. It does not significantly change the amount of heat in the refrigerant, it just forces it into a smaller area which increases its concentration (temperature). And since heat moves from high temperature to low temperature the air will cool the refrigerant therefore increasing the heat in the ambient air but decreasing the heat in the refrigerant. The condenser allows for effective heat transfer from the refrigerant to the ambient air.
The opposite occurs at the metering device and evaporator. The metering device depressurizes the refrigerant, same amount of heat just in a larger are so the concentration (temperature) is decreased. Now the refrigerant is colder than the inside air and so heat will flow from the inside air to the refrigerant. This cools off the air but heats up the refrigerant, the evaporator helps this process. An air conditioner does not "create" cold, it moves heat by cleverly changing the temperature so heat moves in the direction we want.
Hi this is Francis from Ghana.
I have been following your page two years now. Thanks for sharing. My question,, why
Sometimes air conditioner suction line become ice. what are the causes.thanks
Amazing video thanks
Glad you enjoyed it
Really informative video thank you
Glad it was helpful!
Hi there lovu your show continue sharing your knowledge 😂😂
Thanks for sharing
Thanks for watching!
Was amazing after watching lots of video
I just got the idea of superheat and subcooling, is there any way to have access to all videos of this apprenticeship class? Even if it for sales
Great work!
Thanks for the visit
Very good. Tks.
Our pleasure!
Thank you so very much!!!!!!
the best i have watched
Thank you
Goodmorning Ms : Craig Migliaccio what means cooling operation BPP down & heating start up BPP 0.05MPa up when A/C unit is running. Thank you
"The Refrigeration Cycle is the keys to the kingdom"
Absolutely!!!
Great job and goog teaching I like it
Great job
Thank you 🤝
Glad you enjoyed it!
EXCELLENT!
Joey, we have those PowerPoints available on our website at www.acservicetech.com if your school is interested in using them, thanks! I am glad you enjoyed the video!
We need a Hvac electrical book
Nice school!
Need one
What is ur best Advice for them person just starting an HVAC
I wish I was in hvac
Well explained👍👏
Is the refrigerant flow direction correct on the slide around 6:45? I would think the evaporator transfer the cold from the line, so it would return warm/hot to the outside unit? I am just starting learning.
Very niece sir
Very niece sir ji 🙏🇮🇳
🍺🏌🍇🥃🤔🥃
Stay safe.
Retired keyboard super tech.
Wear your safety glasses.
I enjoyed your video it was very informative but the bottom line is this average pay for this job is 45000 a year you cannot support a family of 45000 a year.
You are absolutely, 💯 % right. If you’re interested, learn the basics as the knowledge carries over to all aspects of refrigeration and find a niche in your area. Compete against the bigger companies as you can undercut them and still make a good living. $80,000.00 to $90,000.00 is not an unusually high salary for what I have described
Can someone come for training in your company from another country,and what are the process
Man, my class is nowhere near as modern. We have a lab but not of this magnitude. We are doing our learning primary through text books and lectures. It's a bummer because I know how things work but no actual experience
Any online class u recommend
Hello. Is "sub-cooled" refrigerant any refrigerant that is not in "superheat" state? Like is superheat a name for "vaporized refrigerant" and subcooled is another name for "liquid state refrigerant" could I think of it this way? or is it a mistake to think that way? Or does subcooling only entail the distance from the metering device into the evaporator coil until refrigerant flashes up into a vapor state superheat? Thank you.
I hope to god I’m smart enough to understand this.
Where can I buy your books in South Africa?
My evaporator coil is damage can it be replaced.
Excellente' !!!
Good sir
Do u guys offer remote classses?
Where’s this school? Got a number? I wanna go
Hi how I can study with you guys
Hi, I am from India ! How can I avail your course?
Presently, we just have our digital and physical resources on our website, thanks! www.acservicetech.com
I can't watch this because of the mask. I want to forget that time of insanity.
It was such an odd time of people doing whatever they were told.. ultimately standing with the politics of their own ideology.
Right! I thought it was just me feeling super weird about watching this
People stillnwaoking around with masks
You wearing a mask I assume you got the jab 💉 the HVAC way🧬👑
What would happen if you tightly covered the condenser with a large cloth, would the system operate efficiently and as designed? No it wouldn't, the same applies to humans constantly covering their own airflow. We weren't designed to constantly wear masks.
Fixed orifice metering device
410A unit running nun stop not shoring off what the problem
This guy make everything so confusing, just not a great instructor for beginners on hvac
You're doing a lot of info dumping in this video.
Mask 🫵🤡
The only time I taught with a mask on right there because they wouldn't let me in without it years ago for that one class!
Wanted to care but hes got a mask on and videos with masks are as useless as the current president
Ha ha, yeah so this was at a college I visited so they wouldn't let me teach without one at the time of this video. All other videos are maskless!
Please remake without the mask. It is very distracting for Floridians who were immune from the covid plandemic.
Believe me, I get it!! The sad part was this was actually a college in Florida and they wouldn't let me teach without one at this early part of that pandemic.
Take of your mask!
We were required in order to teach at this college. For any other videos it is off, thanks.
@@acservicetechchannel that really sucks, my college is similar
@@acservicetechchannel Then you should have not done the presentation.
We must stop following the NWO goons.
Mask should be wear at work of HVAC/R