HVACR Refrigeration Cycle Training! Superheat and Subcooling!

@acservicetechchannel what brand of evaporator, condenser are you using?

Thanks a lot bud for keeping it simple yet still providing thorough explanation on the system. Question : where would or where could smoke such as cigarette smoke seep into the HVAC system?
I ask because I can smell the cigarettes Smoke since the smokers have decided to move next to the outside system

We waiting for refrigeration cycling and troubleshooting book..

Kurt

Amazing video thank you!

Good sir

Hey thanks a lot
For all you great videos
Some tech told that AC SHOULD NOT WORK ON UNDER 60 degrees
And why walking cooler can work on winter some time under 32 degrees
Please if you have a moment

Great video as always, straight to the point👍🏾👌🏾

Is the liquid receiver the same thing as an accumulator?

Your explanations ,and illustrations are so easy to comprehend , you are a great teacher of the trade, I have a quick question what is the difference in the system design from your cooling AC in your home versus a walking cooler or a freezer ,what is the main difference that you're able to bring those temperature down to minus zero versus your home that you're only able to bring the temperature in the low sixties at best? , thank you... so much for teaching all of us the HVAC trade.

Why don't air conditioning systems have a liquid receiver?

I always was wondering how gravity affects on the system? All coils made "s" shape but not the sinusoidal.

where superheat of refrigerant start to happen?

Very good information bro

Craig, your timing and clarity make learning quick and easy. Total fan and patreon (along w/E-book) as soon as I get accepted at ARPEC - Miami.

Fyi. LLSV will most commonly found in evap before txv

Hi Craig, very good videos, sorry, my English, I'm from Mexico, my question is: What is the DT of the walk in box evaporators in refrigeration, thanks for your attention

Thank you so much for this tutorial. For me its very impormative.

Simple yet helpful, awesome video!

great video. very thorough

Compressor can also be best described as "Vapor Pump"

What type of refrigerant is used typically used in walk in freezers and refrigerators?

Thankyou Sir best videos even for dummies like me. Salute

|| forgot to send you my email: [email protected]||

||I disagree my brother when you said you can not put a DISTRIBUTOR on a cooler box. Yes you can Connect DISTRIBUTOR. It depends with type of EVAPORATOR you have on your Box, for instance if you've Multi-pass EVAPORATOR coils you would use a DISTRIBUTOR & EXTERNAL TXV..

-Remember when a DISTRIBUTOR is fitted to the EVAPORATOR, an Externally Equalised T.E.V must be used.

I’m new to this tech and I gottta say this is very explanatory and helpful.

Great video and explanation. I was hoping you would have explained in greater detail how the pump down function works utilizing the liquid line solenoid valve. Thank you for your time and effort.

It all depends on what type of evaporator it is, if a center mount, AT the Evap..should be 4 to 5 degrees superheat,,At the compressor, scroll type 10 to 15, hermetic comp..20 to 35 per HEATCRAFT....

hi, Thanks for your clear explanation of Refrigeration Cycle. I have one rather important question I would like to ask. Your Airflow where does the Air come from. Is it normally a Close Loop System where the Air is constantly re-circulated by the Evaporator Fan in the Fridge, or is Fresh Air Intake going on so that the Evaporator Fan is constantly pulling Fresh Air from the Outside and blowing it through the Evaporator Coils inside the Fridge. Also if it is not a close Loop System and the Fresh Air is constantly being sucked in from outside , is it vented out as it is recirculated inside and replaced by a fresh stream of air. Thanks

Thank you for the video. I’m currently in class at nights preparing to take my NYC Refrigeration Machine Operator test. Any videos on the refrigeration cycle, heat, pressure, charles law, tevs, types of compressors, service valves or anything else refrigeration definitely help.

My friend said his walk in cooler only iced up in hot days? Any ideas what’s wrong with it? We are in Louisiana, hot days means the ambient temperature is over 90 F. Thank you so much

Do you have more videos or playlist for walk in coolers and freezers? If could you do some 🙏🏾

Wish I could apprentice with you....I'd be a great HVAC/R tech! Thanks for taking the time to make these videos to suppliment our trade training at school.

Great Explanation! Clear and straight to the point, hit main points well enough to understand.

In the liquid line the state of refrigerant should be high pressure subcooled liquid.

Awesome video. Would there be an accumulator located before the suction side of the compressor to capture any stray refrigerant liquid?

This is a cool video gonna show this to my brother trying to get into HVAC as well.

Who knows where I can get my certificate online for course training? Or become certified?

Thanks once again , you make things really clear

Good Explain This video a lots concepts clear my thanks a lots sir

I'm currently doing an Hvac course, this was a great cycle explanation, thanks ✊🏾

question sir when u pump down the system where does everything stay the condensor and the receiver?

Excellent video. You should also follow up with a video on line set sizing for such a walk in. Why size is critical to keep velocity up for returning oil and so on. Also, you may want to explain a suction side accumulators on a walk in and it's importance.

Great great video!

Outstanding video. I’ve been working as a frame to finish carpenter for the past 15 years. This summer, I’m working for my buddies HVAC company. He’s got tons of work and is a little short staffed. I started doing some basic research on the refrigeration cycle and immediately realized how little I actually knew about the process. This video helped a lot. Can you recommend any good books that can help further explain the process? Thanks again for the awesome video. I subscribed to your channel.

I appreciate your videos I'm actually going to school for HVAC right now and your videos or better explain then some of my instructors I wish you had a picture video explaining heat pumps and how the reverse valve works I will greatly appreciate it and I guarantee you other students will as well...

Thank You!!!!!!

In the condenser super heat and saturation and sub cooling exist while in the evaporator liquid/gas and saturation and vapor gas exist.

Where abouts do you check the superheat and subcooling on a cooler? Also what are normal pressures and tempertures of a cooler using nu22.? I dont usually do cooler work but had to go to one call and the high side was about 225psi and low side was about 50 psi.