Explaining Superheat and Subcooling to Your Apprentice!

In this HVAC Training Video, I Show How to Explain Subcooling and Total Superheat to an Apprentice. I Show Where the Measurements are Taken, Tips to Help You Remember, and What Exactly these Measurements Mean When Checking the Refrigerant Charge. I Explain Undercharged, Correct Charge, and Overcharged. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
Tools Used In The Video
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Our Related Videos/Articles
• The Refrigeration Cycl...
• Why Measure Both Super...
• Total Superheat Method...
• Superheat Charging Cha...
• Check the Air Conditio...
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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. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
#hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #refrigerants #TXV #subcooling #superheat #explained #airconditioner #apprentice #trainee #apprenticeships
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[@acservicetechchannel]

My Paperback, E-Book, Workbook, Quick Reference Cards: www.acservicetech.com/store E-Book: play.google.com/store and search "AC Service Tech" My Paperback and Quick Cards: www.amazon.com/shop/acservicetech Tool List: www.amazon.com/shop/acservicetech Support the Channel: www.patreon.com/acservicetech Related Videos: The Refrigeration Cycle Explained Step By Step! kzbin.info/www/bejne/r5vQo3Z7dpatf6M Why Measure Both Superheat and Subcooling? kzbin.info/www/bejne/d3W5fot3g82isJY Total Superheat Method! kzbin.info/www/bejne/qWqsYpSMqsyXobs Superheat Charging Chart- How to Find Target Superheat! kzbin.info/www/bejne/mHqvanWogKiooMU Connect, Measure, Disconnect Procedure! kzbin.info/www/bejne/aqCoZKOhna-spLM Checking the Charge Tools: Yellow Jacket Refrigerant Gauge Set amzn.to/2aenwTq Refrigerant hoses with valves amzn.to/2aBumVI Yellow Jacket Gauge set & hoses amzn.to/2vLVkV9 Yellow Jacket 4 Port Manifold w Hoses amzn.to/2BkuGIq Digital Refrigerant Scale amzn.to/2b9oXYl Ratcheting Service Wrench amzn.to/2dGV4Nh FieldpieceSMAN360 Digital Manifold Set amzn.to/2BdoaD4 FieldpieceSMAN460 Digital Manifold Set amzn.to/2nB4Fe6 Compact Ball Valve for Refrigerant Hose amzn.to/2KUisW8 QuickDisconnect 90 for refrigerant hose amzn.to/2MMtVcg RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn Fieldpiece ST4 Dual Temp Meter amzn.to/2wc1ME3 Fieldpiece Bead K Type Temp Sensor amzn.to/2DBwKfs Fieldpiece Wet Bulb Temp Sensor amzn.to/2RRI7Tw Fieldpiece TC24 Temp Clamp amzn.to/2qHLyjZ Electrical Diagnosis Tools: UEI DL389 Multimeter amzn.to/2xAdaJf UEI DL479 Multimeter with temp sensor amzn.to/2jtsUbJ Magnet Jumpers- amzn.to/2PyKPQZ Alligator Jumpers- amzn.to/2PxqJXn Irwin Wire Stripper/Cutter/Crimper amzn.to/2dGTj2V Vacuum Tools: JB 6 CFM Vacuum Pump - amzn.to/2nqbvo8 CPS 4 CFM Vacuum Pump - amzn.to/2DxgPwY Appion Valve Core Removal Tool - amzn.to/2uYr8WL Appion Blue 3/8" to 1/4" Vacuum Hose - amzn.to/2uYlVyc Appion Red 3/8" to 1/4" Vacuum Hose - amzn.to/2uYg6Ro Yellow Jacket 1/4" by 1/4" 3’ hose - amzn.to/2umtcod Appion 1/4" by 1/4" and 3/8” hose - amzn.to/2Zyxzx9 Uniweld 1/4" by 1/4" 2’ hose - amzn.to/2GFov1Y CPS Vacuum Micron Gauge - amzn.to/2v1nM3O JB Vacuum Pump Oil - amzn.to/2mGrlXy Flaring Tools: Yellow Jacket Flaring Tool - amzn.to/2OBxGlM Spin Flaring Bits 1/4", 3/8", 1/2", 5/8", 3/4"- amzn.to/31BCs8Z Yellow Jacket Flaring Tool with Set Depth - amzn.to/2QIKsQH Yellow Jacket Torque Wrench - amzn.to/2NRR68Q Uniweld Swage and Flare Kit- amzn.to/2T55jyn Nylog - amzn.to/2MLJcch Ridgid Tubing Cutter - amzn.to/2DnjjR1 Wolverine Tube Reamer - amzn.to/2QGLyMV Swaging Tools: Manual Copper Tube Swage/Expander- amzn.to/2WRPa1M Spin Swaging Bits 1/4" to 7/8" for the Drill- amzn.to/2YQwwqS Uniweld Hydraulic Swaging Tool- amzn.to/2MlrI8m Uniweld Swage and Flare Kit- amzn.to/2T55jyn Uniweld Hammer Swage kit- amzn.to/2CzWMMU Uniweld 3/4" Hammer Swage- amzn.to/2CzXsSs Uniweld 7/8" Hammer Swage- amzn.to/2Mja5WE Uniweld Multi-Size Hammer Swage- amzn.to/2T3Cx1b Brazing Tools: Air Acetylene Torch setup - amzn.to/2aQalsb 15% Silver Brazing Rods - amzn.to/2gVLyLc Ameriflame Oxy Acetylene Torch Setup #1 &#2 Tip - amzn.to/2SRm3JF 40cu B Tank to 10cu MC Tank Acetylene Tank Fitting - amzn.to/2GxZZPi Nitrogen Regulator - amzn.to/2bXdR5f Uniweld NitroVue Flow Regulator - amzn.to/2GnsaAo Uniweld Nitrogen Flow Meter - amzn.to/2brvoBg Stay Brite #8 Silver Bearing Solder and Flux - amzn.to/2XIDJsY Aluminum Braze Rods - amzn.to/2IGNMu Refrigerant Leak Detection Tool: Accutrak VPE Ultrasonic Leak Detector amzn.to/2nFYKVe Shop through Amazon! Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from all purchases after clicking through. Prices are the same as normal.

[@selvarajanv.achary7628]

Very good and useful.

[@MichaelMantion]

Desperately need an answer. I am going crazy. ASSUMING a system is working properly can you determine the correct charge level with the sub cooling? In other words if you know the temp of the high line and the pressure of the high line can you determine if a system is properly charged assuming the outside temperature is reasonable. I know most systems only post the average temp. but.

[@gustavokeegan961]

i know Im asking the wrong place but does any of you know a way to get back into an Instagram account? I somehow lost the password. I appreciate any help you can give me!

[@forestismael3863]

@Gustavo Keegan Instablaster :)

[@gustavokeegan961]

@Forest Ismael thanks so much for your reply. I found the site thru google and I'm waiting for the hacking stuff atm. I see it takes a while so I will reply here later when my account password hopefully is recovered.

[@bjnopoli]

My entire first year class in 14 minutes. Your awesome.

[@acservicetechchannel]

That is awesome! Thank you for your support!!

[@nnjvhvhhgc5213]

lol

[@adamedwards2435]

Did you at least get to hookup the gauges?

[@WTF_BBQ]

Wait...... It takes a year to learn this in school ??

[@jonathanangeles9683]

​@@WTF_BBQ4 years if I remember correctly

[@globalgorilla3134]

These guys aren't lying. Spent 2 yrs of night classes and didn't learn this. You were born to teach and share/pass on knowledge to others. Thank you for taking the time to do it.

[@AJ-ox8xy]

I have to rewatch this at least 5 times to really understand what you're saying, but you do an excellent job. Thanks

[@NightWear21]

I was able to have auto problems with a/c. It has the same parts. A few difference, big or small unites, txv is diffferent looking. . Concept the same,

[@dgapp76]

Went in for an interview for a tech position years ago and the guy walked in and said "I just have one question: What method do you charge a unit?" I said, depends on your metering device, subcooling or superheat. He said, you're hired. Then he walked out of the room.

[@johnmattern6068]

Was it for an apprentice job? I have an interview for a union for a 1st year apprentice and I’m watching this video I don’t know if they will ask me stuff like that but your comment makes me feel like it’s a good thing I am.

[@dgapp76]

@@johnmattern6068 no I had already been a service tech for a few years so I knew just enough to be dangerous haha. They may ask you a question like that as well as other questions. If you don't know the answer, just say so. If you talk the talk, they will find out pretty quick if you can actually walk the walk. Good luck!

[@daveyt4802]

I lost a job not knowing this 25 years ago. I turned out alright though. Heh.

[@bobbyanderson2168]

@@dgapp76 well said sir, to @John Mattern, remember this, you’re going in for an apprentice job. Trust me, they don’t expect you to know a whole lot. What you want to do is just like this dude said, be honest. I can tell you from experience, a good work ethic is worth TEN TIMESall the knowledge in the world. If you have a good work ethic, I can teach you anything you want to know about this industry. But without a good work ethic, and all the knowledge in the world, you’re just a lazy bum, nothing more. Good luck to ya buddy, I’m sure you’ll do well… or should I say, I’m sure you did well. One thing I LOVE about these unions, they’re not satisfied with making you a limited journeyman. When they get done with you, you’ll be a master of this trade. Congratulations, make the most of it…

[@Eric-ot6sn]

Just takes a little bit just to be dangerous.

[@tateskinner4695]

I went to trade school, and have been in the field for six months, but I never fully understood Superheat or Subcooling. This video finally explained it in a way I understand. Thank you for making it.

[@robertstober1625]

I love this explanation I’m a contractor and I will use a similar way of explaining it to my trainees

[@millenialmemoirs]

This video alone is enough to convince me to spend $68 on the book. Well done.

[@acservicetechchannel]

Thats so encouraging, thanks!!!

[@millenialmemoirs]

@@acservicetechchannel just put my order in on Amazon and binge watching your content in preparation for starting a new HVAC job this month. Thank you!

[@Rangobine]

⁠how’s that going im studying right now my grandfather and dad, both Do air-conditioning down here in Sarasota Florida. One of my grandfathers clients is stephen king out on bird key

[@millenialmemoirs]

@@Rangobine I learned this book inside and out as fast as I could. I also learned his mini split book, manual D, and a bunch of others. Working as a selling technician for one of the top companies in my city making about $9-$10k a month.

[@blinkersgaming]

Out of all the channels/videos on KZbin regarding HVAC walkthroughs, yours is by FAR the absolute best. I really appreciate what you're doing here with this channel and am happy to see there's ads. Thank you for the amazing content and wisdom.

[@acservicetechchannel]

Wow, thanks!

[@insearchofveracity2304]

You have no idea how much this has helped me. Fantastic explanation. Thank God for techs like you.

[@acservicetechchannel]

Glad to hear it!

[@MaMa-qh4dy]

I purchased both the hard-copy book and the e-book. Fantastic indeed. This video reminds me to re-read the book since warm weather is coming. If you don’t do this very often, you forget some things. The book is a perfect refresher. Thanks Craig, and keep up the great videos. I always look forward to watching them all!

[@acservicetechchannel]

Yeah summer is coming for sure! Thank you very much for your note!

[@Rhahdhdn]

Great explanation as always. Even though I know this already it’s always nice to have a refresher on how to properly explain it to someone.

[@acservicetechchannel]

Thanks a lot rev!

[@daveyt4802]

I just don't do enough HVAC to stay at expert level. But of course that's what your employer expects.

[@713cca]

This is some great info, God Bless You. Your channel so helpful. This planet needs great people like You.

[@_WalkingThunder]

This was, by far, the least convoluted explanation I've gotten on this subject. I can finally understand the concept after way too long overthinking it and getting nowhere when someone else tries to explain it. Thanks a ton! I came here hoping for a little clarification and found a whole new way of thinking about it. The simple, yet in depth explanation was perfect!

[@user-pp7vv5eh3n]

This video is 14 mins long but I took 2 hours to finish it. Not ashamed to say that I’m taking it in word for word. You’re a good man thank you for the video.

[@acservicetechchannel]

Wow, you really want to learn and thats great!!!

[@DanArr1]

Outstanding explanation. A lot of info covered in an easy to understand manner. Thank you.

[@argenismoreno7253]

The best video to understand SH and SC

[@manuelhayashi]

This video explains the concept of superheat and sub-cooling very clearly and accurately. Very good job! It just clarified my mind on this subject

[@acservicetechchannel]

Thats awesome to hear and if you want to see more visuals, check out the free articles on superheat and subcooling at www.acservicetech.com/articles thanks!

[@juanlara5773]

Lot of info and well explained. Thanks for sharing valuable information.

[@acservicetechchannel]

Thanks a lot Juan!

[@Jeff_Seely]

I have scoured all of KZbin just to find out what you demonstrated here. Most educational videos assume that you know what saturation and subcooling and superheating are and go at a quite fast pace from one topic to another. If I buy anything, it's going to be from you. Thank you for taking the time and not assuming that people know things that they don't. Great work here!

[@acservicetechchannel]

Jeff that's so encouraging thanks!

[@younislayth5581]

Sweet, I just ordered the cards, you got a sub, thanks for making our job easier

[@acservicetechchannel]

Thanks a lot Younis, please let me know what you think of them after you receive them!

[@beotheguitarist]

Wow. I'm blown away. I finally after so many years understand subcooling and superheat. I don't know why but I've had a hard time understanding what they both meant...even after taking a refrigeration course 15 years ago! I got my universal 608 at that time but I'm not a technician. I just took the class to learn about refrigeration. I recently started watching videos again and tried to understand once again the difference between subcooling and superheat. And now I totally understand because of this video. Great explanation!

[@nathanielnavarro3219]

I have done HVAC 20 years as a lead maintenance for apartments and couldn't grasp the concept of superheat and subcooling until watching this video too!! I feel you bro.. It's like I leveled up in a video game..

[@pizzle1011]

Another great video.... I purchased the book a few weeks ago. It's an easy read and has a lot of good information.. 👍🏾👍🏾

[@acservicetechchannel]

Thanks a lot piz11!

[@heavyequipmentiv]

I am impressed with your teaching abilities. Great job.

[@brady0630]

I am an electrician and, this was a damn good video. I now kinda understand refrigerant. I bet if I watched it again id understand even more. Lots of terminology, which i want. Because that is how the hvac world speaks. Love it.

[@livingyourbestlife711]

excellent explanation, Craig. You are an asset to our profession! thanks for sharing!

[@acservicetechchannel]

I appreciate that! Thank you for your support!

[@michaelwells7919]

I thoroughly understood everything you said here but I just ordered the book because I want to be able to teach it as well as you. Awesome video! Keep it up! Thank you!

[@acservicetechchannel]

Very cool Michael! Please let me know what you think of the book after ordering it!

[@beau-beauthecharlieboy8098]

Incredible speech! Short easy words to understand. Coherence in thinking and so easy to follow your mind and highly comprehensive comprehend!!! Thank you very much.

[@acservicetechchannel]

So great to hear that you valued the video, thanks! Make sure to read some of the articles on superheat and subcooling on our website at www.acservicetech.com thanks!

[@jaymesrod4209]

Your videos are very thorough and simple to understand. 👍

[@rodmangalvan4266]

Great videos, very helpful for beginners techs like me. Thank you AC service

[@Caymen43]

Cant recommend this book enough. So simple to read and understand. Im not a tech so I dont service hvac systems enough to have this material become second nature. I read it last year, but forgot some stuff by this year. I decided to read the book again (something I would normally never do), and found it just as enjoyable as the first time i read it.

[@doorguru168888]

Thanks for the very detailed explanation. It made Superheat and Subcooling very clear to me after watching a couple of times.

[@acservicetechchannel]

Awesome to hear and check out our full length articles on superheat, subcooling, and delta t at our website at www.acservicetech.com thanks!

[@eliaswakim3631]

this is the best way of explaining the meaning of the Subcooling and superheat ,thank you !

[@acservicetechchannel]

Glad you liked it!

[@chrischavez5944]

Craig you are the best hvac guy on you tube I’ve been following you for a couple years now I learned so much from your videos

[@acservicetechchannel]

Wow, thanks!

[@1stFlyingeagle]

Just ordered your manuals. Just took great notes. Thanks.

[@kevinpulver4027]

Wow Craig that's the best definition of "saturated" that I've ever heard! Previous explanations just explanations just told me it was a mixture of liquid and vapor. You clarified that at this point it is not changing temperature. but only changing phase. For 12 years since Tech school I have understood super heat and subcooling but "saturated" has been sort of vague. Thanks again for the excellent videos and I highly recommend your book and cards to anyone reading this!

[@melaniecotterell8263]

thermodynamics requires a good explanation unless you are a genius. I was supposedly an A-student, but I still really didn't understand it well enough to remember it for very long.

[@EarlHayward]

As an engineer, but former tech, I enjoy watching such videos (usually the result of researching test equipment though). Overall, good explanation, just might have started with definitions of terms first (but that is just more preference in presentation). As mentioned in the video, or to make it more clear… The temperature of the refrigerant decreases during the desuperheating and sub-cooling processes, but remains constant during the condensing process itself (gas to liquid, or as in the video the “saturated section”). The energy rejected from the refrigerant heats the secondary medium (copper or aluminum), whose temperature thus increases. However, The refrigerant pressure changes little from desuperheating to subcooling (think compressor to service valve). In a similar way to evaporation, the only pressure difference between the entrance and the exit of the heat exchanger is just the pressure drop (the equation is: pressure equals temperature times volume - which explains why your car tire pressure only changes with heat, but is the same wether mounted or not). Also, because the flow velocity in a condenser decreases, the induced pressure drop is much lower than in an evaporator. In other words, the pressure is rather stable throughout the high-side and low-side environment (between condenser and the expansion valve / orifice and vise versa). Another key thing to remember, is that phase change is what takes the most energy (yet pressure is still rather constant). Thus, most heat is transferred during the condensing process (that process which is after desuperheating but before subcooling). Another mental tool I use to think of saturation is relating it to the opposite as in precipitation of say minerals from water; boiling water causes dissolved solids to precipitate (due to temperature change).

[@tonyslice7279]

Good Job Bro, very proud of you and how you explained everything

[@sam-873]

Just stated HVACR school and my teacher recommended this channel thank you.

[@nickledimez4012]

This is a confidence builder. Listen apprentice don’t rely on your journeymen to teach you this. Ive purchased the book, it is awesome plus watched his videos. The best teacher Period. Thank you for posting.

[@acservicetechchannel]

Thank you very much Nickle& Dimez!

[@Conk102]

Thank you for these video's and guides. You have been a blessing!! Thank you!!!

[@eduardocastroisaac7844]

Your videos and your book are excelent! Saludos desde Mérida Yucatán México

[@ricklannis6244]

You explained that flawlessly, well done!!

[@acservicetechchannel]

Thank you!

[@jacobalbright3715]

I love these vids..great explanations, no fluff. Keep it up!

[@acservicetechchannel]

Much appreciated!

[@Obsidian-ri2yz]

This is incredibly useful information thank you for sharing!

[@dyltr0]

exactly the explanation i needed. An explanation looking at a diagram just doesn't click. Having the gauges and condenser there and instructing how it would be done in the field is much better.

[@jimbola77]

thanks, partner for sharing! love all your videos! top-notch!!!!.

[@acservicetechchannel]

Thanks a lot Jimbola77!!!

[@phadracypres]

Thanks for putting the procedure in a nutshell!!!

[@coreykempt1189]

This is so mind blowing and great video!!!

[@acservicetechchannel]

I am really glad you appreciated the video! That kind of info was what I tried to put into the book, the procedures and the why and why not, step by step instructions. Thanks for your note!

[@rc5869]

Great instruction thank you. I love your manual by the way.

[@MichaelCowden]

This is an extremely helpful and well produced video. Thank you!

[@acservicetechchannel]

I'm glad you enjoyed it!

[@josevasquez1781]

This was useful as I'm a bit rusty or perhaps rusted. I have other responsibilities that I deal with like plumbing and electrical and haven't recovered refrigerant in a long time.

[@scottwhittier5861]

Great work! Very informative and easy to understand!

[@acservicetechchannel]

Glad it was helpful!

[@bigbite9804]

Knowledge you gain more when you share your knowledge to everyone.thank you for sharing this wonderful knowledge to us..it's very useful for being a hvac technicians. ..

[@acservicetechchannel]

Awesome, thanks big bite!

[@bigbite9804]

Your welcome sir.

[@argenismoreno8838]

This is Great, thanks a lot from Venezuela. 🇻🇪👏👏👏👏👏

[@acservicetechchannel]

Thank you very much Argenis!

[@ddee2501]

Best description yet !

[@melvincandido7936]

this video helped me a lot to understand the superheat and subcooling, well explain

[@acservicetechchannel]

Glad to hear it!

[@arturobolanos6061]

Gary your are really good Teacher. Your Video reminders me of Chrisfix an Automotive DYI KZbinr also has the similar voice and rhythm.

[@kurisu9103]

thank you for sharing your knowledge with us on every video for free. 👍

[@napoguevara6450]

you are excellent at teaching learning more with you than in school I thank you a lot I have learned a lot with you

[@acservicetechchannel]

Glad to hear that!

[@kennethlobo4420]

Great explanation Craig.God Bless.This is a refresher for me, am currently retired. But keeping touch helps me to undetstand better.

[@acservicetechchannel]

May The Lord Bless You Too Kenneth, thanks!

[@jenbuckway5570]

Very understandable and concise. Thanks

[@luke9129]

Great video!!! Keep them coming, top notch!!!

[@acservicetechchannel]

Thanks a lot Luke! Will do!

[@hvacdoc3165]

I played this video for both of our apprentices today, great explanation thanks for posting the video!

[@acservicetechchannel]

That's awesome, thanks HVAC Doc!

[@jastinsmith7285]

This is Gold!!

[@ogattii]

Thanks for the explanation.. I just ordered the book 📕 👍

[@acservicetechchannel]

Hope you enjoy it!

[@TeflonnDonn]

Can’t wait to finally start in this field

[@cooldude2245]

Excellent explanation

[@dustinphromphanh3698]

Future service technician in the making here. Thanks for the invite to like your page on Facebook. I find your videos useful and have learned from this video. I'm very much blessed and appreciate this video 🙏🏼

[@acservicetechchannel]

That's awesome to hear Dustin!

[@prettycoolac9435]

Great video! Thanks for the knowledge!

[@acservicetechchannel]

Glad to help!

[@prasadkumar8384]

Very good explanation . Thanks

[@dlo4262]

Super understandable video i appreciate this

[@communityfarmingtv4795]

Best video ever

[@ronyben-nachum7803]

Thank you very much for the explanation. Very helpful.

[@acservicetechchannel]

Glad it was helpful!

[@jimmyit4722]

Great video!! 👍

[@bigbub2118]

Great video man very understandable

[@tntheatingandairllc]

Great video buddy I have the books and cards and they are great 👍

[@acservicetechchannel]

Thanks a lot for taking the time to write this note! Awesome!

[@danielshaw4847]

Great explanation

[@MrUbiquitousTech]

Great information, thank you for sharing!

[@extraNaz]

I'm so glad I found this video so can learn how super heat

[@acservicetechchannel]

Glad you liked it!!

[@afkool]

Thank you for your videos. How would one figure out the target superheat of a small portable dehumidifer(fixed orifice, ~10oz r410A) where the evap and condensor are stacked? Even if I could get a probe in front of the condensor, it would be skewed either by airflow position or proximity to either core. Then I wonder if the typical charts would still apply? Thanks.

[@stevel6220]

This video is really excellent. Very well explained. I have a question about something well outside the norm. I am looking to install a heat exchanger on the hot gas line off the compressor to do some water heating. This would be a water cooled condenser in series with the existing air cooled condenser. I have a TXV at the evaporator. Am I correct to think that, since I have a TXV, I can simply adjust the charge based on target subcooling after installing the water cooled condenser and everything will work correctly? I am worried that there will be times when the air cooled condenser is doing nothing but subcooling and I could end up with a slugged compressor. Is there any danger of oversizing the water cooled condenser to the point that this becomes a real risk to the system? Thanks again for the video.

[@emylrmm]

excellent explanation!

[@seshachary5580]

very educative.Thank you regards

[@andybub45]

I’m an auto tech, when we had HVAC out at our house one time I was talking to the tech about the HVAC I deal with and he said it’s similar but completely different. I can see he was 100% right.

[@DG_Fabrication]

Best video on KZbin explaining this thanks

[@acservicetechchannel]

Glad it was helpful!

[@meltycastillo2125]

Amazing information. Thank you i will be ordering this

[@acservicetechchannel]

I would be excited to hear what you think of our book, thanks!

[@meltycastillo2125]

AC Service Tech LLC yes I will definitely follow up

[@gendryadamez2811]

Thank you so much for the information.

[@hoddy2001]

great explanation of a common but relatively complicated topic. i bought the book

[@acservicetechchannel]

Glad it was helpful!

[@daveyt4802]

Nice video!

[@jesuschavero7307]

Great videos man I really enjoy all this information ....👍👍👍👍😀😀

[@acservicetechchannel]

Thanks a lot Jesus!

[@stonegreenleeify]

As an apprentice this channel has saved me thousands

[@acservicetechchannel]

Stone, I really appreciate you letting me know! Make sure to read the articles I wrote as well at www.acservicetech.com thanks!

[@KontraktWolf]

Very informative, thanks a lot 😎

[@alanphillips4065]

Brilliant!

[@jacklabloom635]

Thank you explaining this.

[@acservicetechchannel]

Glad it was helpful!

[@zekenzy6486]

Great Video and detail. Thank you for sharing ^_^

[@acservicetechchannel]

Thanks a lot ZE KENZY!

[@highginx]

Best video on this topic that I seen yet

[@acservicetechchannel]

Thank you for your support!

[@jameskennett8666]

Great video

[@abdolkarimmehrparvar6583]

Hey man, it's like a real class for me, thank you. I live in Iran and it's technically impossible for me to purchase your Ebook not because of having money the real issue is we cannot transfer money to any other country. Is there any alternative for us to have it. Thank you again.

[@supersoberano2095]

You’ve dropped the mic on this Video, please keep the videos coming. Great job. More more more please.

[@JP-zz5rm]

Great video! Very informative 👍

[@acservicetechchannel]

Glad it was helpful!