HVAC Training Basics for New Techs: Gauges, Pressures, Temps, Check the Charge!



In this HVAC Training Video, I show How to Read Gauges, Measure Refrigerant Pressure, Convert to Saturated Temp, Check the Charge, Confirm Refrigerant Type, Check for a Contaminated Charge, or Low Charge, Read a P/T Chart, Measure Total Superheat, and Subcooling, and more! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.

The PowerPoint is available at https://www.acservicetech.com/store

Check out our Free HVAC Calculators at https://www.acservicetech.com/hvac-calculators
Check out our newest full Articles at https://www.acservicetech.com/articles
Try our Quizzes! Do you have what it takes? https://www.acservicetech.com/quizzes
Check out our Podcast! https://www.acservicetech.com/podcast
Follow us on Facebook! https://www.facebook.com/acservicetech

My Paperback and E-Book: https://www.acservicetech.com/the-book
My Paperback: https://www.amazon.com/shop/acservicetech
Support the Channel: https://www.patreon.com/acservicetech
Tool List: https://www.amazon.com/shop/acservicetech

Related Videos and Articles:
-Finding Target Superheat to Check the Charge of an R-410A AC Unit! https://youtu.be/MJMe9PPNjI8
-R-410A AC Unit Checked with Superheat: 4 Scenarios, Low Charge through Overcharged! https://youtu.be/sCIsw2FKC0M
-7 Tools to Measure Wet Bulb Temp for Target Superheat! https://youtu.be/bUU8zKfr22g
-Explaining Superheat and Subcooling to Your Apprentice! https://youtu.be/2SEDe0v8VPY
https://www.acservicetech.com/post/the-hvac-total-superheat-charging-method-explained
https://www.acservicetech.com/post/the-hvac-subcooling-charging-method-explained

Electrical Diagnosis Tools:
UEI DL389 Multimeter http://amzn.to/2xAdaJf
UEI DL479 Multimeter with temp sensor http://amzn.to/2jtsUbJ
Magnet Jumpers- https://amzn.to/2PyKPQZ
Alligator Jumpers- https://amzn.to/2PxqJXn

Vacuum Tools:
JB 6 CFM Vacuum Pump – http://amzn.to/2nqbvo8
CPS 4 CFM Vacuum Pump – https://amzn.to/2DxgPwY
Appion Valve Core Removal Tool – http://amzn.to/2uYr8WL
Appion Blue 3/8″ to 1/4″ Vacuum Hose – http://amzn.to/2uYlVyc
Appion Red 3/8″ to 1/4″ Vacuum Hose – http://amzn.to/2uYg6Ro
Appion 1/4″ by 1/4″ and 3/8” hose – https://amzn.to/2Zyxzx9
Uniweld 1/4″ by 1/4″ 2’ hose – https://amzn.to/2GFov1Y
CPS Vacuum Micron Gauge – http://amzn.to/2v1nM3O
JB Vacuum Pump Oil – http://amzn.to/2mGrlXy

Checking the Charge Tools:
Yellow Jacket Refrigerant Gauge Set http://amzn.to/2aenwTq
Refrigerant hoses with valves http://amzn.to/2aBumVI
Yellow Jacket Gauge set & hoses https://amzn.to/2vLVkV9
Yellow Jacket 4 Port Manifold w Hoses https://amzn.to/2BkuGIq
Digital Refrigerant Scale http://amzn.to/2b9oXYl
Ratcheting Service Wrench http://amzn.to/2dGV4Nh
Compact Ball Valve for Refrigerant Hose https://amzn.to/2KUisW8
QuickDisconnect 90 for refrigerant hose https://amzn.to/2MMtVcg
RectorSeal Bubble Gas Leak Detector http://amzn.to/2ckWACn
Fieldpiece ST4 Dual Temp Meter http://amzn.to/2wc1ME3

Flaring Tools:
Yellow Jacket Flaring Tool – https://amzn.to/2OBxGlM
Spin Flaring Bits 1/4″, 3/8″, 1/2″, 5/8″, 3/4″- https://amzn.to/31BCs8Z
Yellow Jacket Flaring Tool with Set Depth – https://amzn.to/2QIKsQH
Yellow Jacket Torque Wrench – https://amzn.to/2NRR68Q
Uniweld Swage and Flare Kit- https://amzn.to/2T55jyn
Nylog – https://amzn.to/2MLJcch

Swaging Tools:
Manual Copper Tube Swage/Expander- https://amzn.to/2WRPa1M
Spin Swaging Bits 1/4″ to 7/8″ for the Drill- https://amzn.to/2YQwwqS
Uniweld Hydraulic Swaging Tool- https://amzn.to/2MlrI8m
Uniweld Swage and Flare Kit- https://amzn.to/2T55jyn
Uniweld Hammer Swage kit- https://amzn.to/2CzWMMU
Uniweld 3/4″ Hammer Swage- https://amzn.to/2CzXsSs
Uniweld 7/8″ Hammer Swage- https://amzn.to/2Mja5WE
Uniweld Multi-Size Hammer Swage- https://amzn.to/2T3Cx1b

Brazing Tools:
Air Acetylene Torch setup – http://amzn.to/2aQalsb
15% Silver Brazing Rods – http://amzn.to/2gVLyLc
Ameriflame Oxy Acetylene Torch Setup #1 &#2 Tip – https://amzn.to/2SRm3JF
#2 Tip for Oxy Acetylene Torch – https://amzn.to/2SPDaeD
40cu B Tank to 10cu MC Tank Acetylene Tank Fitting – https://amzn.to/2GxZZPi
Nitrogen Regulator – http://amzn.to/2bXdR5f
Uniweld NitroVue Flow Regulator – https://amzn.to/2GnsaAo
Uniweld Nitrogen Flow Meter – http://amzn.to/2brvoBg
Uniweld Soft Flame Sweating Torch Setup for Acetylene – https://amzn.to/2DyzRD8
Stay Brite #8 Silver Bearing Solder and Flux – https://amzn.to/2XIDJsY
Aluminum Braze Rods – https://amzn.to/2IGNMu

Refrigerant Leak Detection Tool:
Accutrak VPE Ultrasonic Leak Detector https://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.

source

42 Comments

  1. Mr Jukemaster

    Looking forward into learning & being successful in this field if in God will 🙏🏾 any tips?

  2. wopjohn

    Dude sounds like George Lucas

  3. Frank Polanco

    Excellent video, thank you.

  4. Marcus Brown

    My first day May 9th. Wish me luck guys I’m 22.

  5. Alias Skip Stevens

    As knowledgeable as you are, you are not a good enough teacher yet. You go too fast and you leave out fundamental facts about what you are trying to teach leaving students like myself wondering what you mean. Is the system running or not is one of the one's you leave out quite often for us beginners. That being said…I trust your knowledge which is a huge plus. Slow down and pre-state the conditions we're starting with each time and you'll be the best teacher on YouTube. I should know, I was, before I retired, the best local HS math teacher…and even the best salesperson when I did that.
    On a different note, I bought at auction a Snap-On R-12 service machine. Did they recover refrigerant in those days? It will apparently vacuum out a system, but it doesn't appear to collect the refrigerant. Can I modify it to do so? Thank you sir.

  6. InDred CoLd

    Dang you could call my dog with that whistle in the narration 😂

  7. Felix E. Cerpa, Sr.

    Hi,Craig,I have two questions for now the first is when you connect gauges in heat pump where you connect the high hose gauge straight to reversing valve fitting or to fitting of the liquid high line and low side hose gauge to low side vapor fitting.The second question is about the vapor state of refrigerant when you use it and how to proceed to let the vapor enters to the sister.Graig I wil appreciate you prompt to me.

  8. Bottom Text

    I saw retard on the blue gauge and now I can't get it out of my head

  9. Akame Ga kill

    I am 20 and starting my classes next month I know nothing about this I didn't see myself in college this will be the first actually man thing I do I grew up soft but I will try my best.

  10. Frank FB

    You really KNOW your subject matter!

  11. Devtheedudee

    30 years old and I’m jumping into the HVAC career field start school end of the month . Wish me luck ! It’s never to late !

  12. Manny Loera

    I’m 41 and I’m starting A/C school on Sunday.. am I too old to learn this trade??

  13. Sem Meh

    Can I be able to measure with this tool Testo 405i Outdoor DB Temp and Indoor WB Temp, and what is proper way to do measuring on Mini Slit systems. I really appreciate what you doing regarding education us here on YT-.

  14. Dominique Pierre

    Just i got confused line temp :ambient temp and saturated temp;
    Are they same or different.
    To be honest ;not great video; the numbers are so small and you did not explain very well regarding temperature.

  15. Michael Lee

    I am trying to learn how to fix my fridge and a/c by myself. These HVAC guys are blood sucking low life leeches. They want $850 to fix a pin hole leak on the copper pipe and recharge the gas when the fridge is $3800 brand new and $500 second hand. Simply cut and weld a new piece of copper pipe which can be done in 2-30mins plus recharge and testing, I am looking at 1.5hrs labour here.
    Good video thx!

  16. dom Kazi

    First day on the job at 30 never done this before but according to the guy I'm training under this is good information

  17. Ganesh Tiwari

    hvac have scope plz guide me … sir ….

  18. Gerry Long

    I bought quick guide troubleshooting card through Amazon. Under TXV Metering device in cooling mode, go to scenario and go down to Outdoor coil: low airflow or deteriorated, it says high under subcooling, I think that should be low unless I am misunderstanding. Could you please let me know? I appreciate all you do and use your info to assist me and my team. Thank You.

  19. Brian Noriega

    My first day is also tomorrow and I’m 29 so wish me also good luck lol. I went to school but they didn’t hardly teach us anything. I know basic things but not into detail.

  20. Ronnie Newman

    In technical school do we do more hands on? Than individual work?

  21. Rick L

    Love your videos. They are so well done and loaded with valuable knowledge. I primarily only do R134a (automotive,) do you have any books or quick reference cards for automotive R134a or R134a in general ? If not is there a video channel or source you would recommend. You've helped me get a better understanding of superheat and subcooling. My 40 ft Rv has a TXV and 36' of hoses from the compressor and condenser to the evaporator. Thanks again.

  22. baphyyy

    why do you say r410a like that

  23. SMoovE Vizualz

    I’m a certified tech and I literally know nothing it takes experience

  24. Antony Philip

    Very informative, thank you Sir

  25. David Razo

    I’m a roofer why I’m I watching this

  26. Cesar Leeroy

    Im 27. I start going to school sep 13 to be a HVAC technician Im nervous cause I have a hard time getting things in my head and have a hard time learning the only thing I worry about. Im not smart but this is something i wanna do in life I finally found something I wanna do in life. Well thanks for the video ima replay this all the time

  27. iTzJmOn

    R4jenayyyyyy

  28. Robert Cherry

    The vapor gauge you are showing and saying only goes to 350 ,actually goes to 500 ..

  29. ben nu

    i lowkey felt heckled by the screen at 0:50 . Has anyone here ever watched The Matrix?

  30. Raymond Gillinger

    Thank you for the knowledge you apply your easy to go along with and I think I’m gonna purchase the books for sure

  31. keith wukmir

    8 Years required before You can study for you contractors license test. Lien law includes ethics.
    When Boss don't pay you what your worth you might be a Family member. Cops are fascinated. Judge is Homosexual.

  32. Fassy M

    Awesome explanation, learn a lot, Thank you

  33. Teresa Cope

    So how long does it take typically to measure the refrigerant levels from start to finish?

  34. Jacob Loisel

    I’m 17 I’m in hvac learning right now best advice is learn the tools get organized and learn the steps and then apply what you learned slowly

  35. Nate Dowd

    Working on Thermal king reefer refrigeratation systems..410a…im new to this so this video helped alot. My boss has done it 33yrs working on TK units and Carrier units so wanted to get better knowledge so i canbe better at it like him

  36. King In Black

    The way he prounces letters annoys the hell out of me

  37. Eric Smith

    My first day June 28th I know nothing about this wish me luck

Comments are closed.