The Refrigeration Cycle Explained – The Four Major Components

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The refrigeration cycle includes four major components which are the compressor, condenser, metering device and evaporator. They all work together to complete the make up of the refrigeration cycle. In this we video, superheat, sub-cooling and saturation are explained including and four major components and the cycle itself. Check out this detailed article on the refrigeration cycle…

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HVAC Know It All says:

Any questions ask away, we may be able to answer these in other video.

Phil Mills says:

Probably the most clear explanation of the refrigeration cycle I have found on here. Thank you.

Navi Maan says:

Best video for New Technicians.

Darren Blois says:

One of the clearest explanations I've seen. Thanks!


I really appreciate your advice I'm in school now and I was trying to wrap around my head how to understand a refrigeration cycle but I definitely understand it now I appreciate it

Jesse James says:

I've never had Paasta however I'd like to try it some day. I'm tired of plain ol' pasta…!! LOL Great Video…!! Thanks and Happy Holidays 21'

John G says:

Thanks in a million. Great content. Awesome. Grade: A++💥

Joseph C. Wright says:

Watched a few videos all on the refrigeration cycle and yours was all around the best. You started with the comparison of super heat, saturation, and sub cool. Went step by step on how each state was reached. That was very helpful. You didn’t go to fast. Great job!

KL CHEE says:

Could you share how long the cycle time from the compressor to condenser, to the coil inside the fridge or freezer until to flow back to compressor per time? say if roughly took about 30 mins for cycle times from compressor flows vice versa, it will took about 48 times per days for compressor to refrigerant vapor and receive the evaporates gas. correct me if i'm wrong.


New subscriber here. Great explanation!

Adam Peters says:

Started learning today

Ken says:

dude … your killing me w the word PASTA lol my italian ancestors rolled in there graves.

Santhi Bhushan says:

So what happens in the air conditioning cycle?.. Can you explain the difference?

Edward Schieber says:

Very nice. I've been in Maintenance for 20 years and have worked on many AC units and you taught me some things. This will make me a better maintenance man. You don't realize how much you really don't know or forgot until you watch someone with extensive knowledge of AC systems. Thank you.

Shane Scott says:

I'm not studying to go into refrigeration but I need to understand it because I am studying to go into facilities management. The refrigeration sections were the hardest. I understand it so much better just after this one video. Awesome explanation. Thanks

skilled black says:

Thanks.. you explain very well

caleb ladd says:

I'm sure this makes perfect sense to other people who already know how refrigeration works

dobythedog says:

A very good explanation.

Balachandran Palaniappan says:

crystal clear explanation

Shubham Rajpoot says:

How easily u explain everything thanku…🙏

ISO KANE says:

This was the best explained video I’ve seen THANKS

BrownGeye 692 says:

👏👏👏 Great presentation!

Muhammad Farhan Khan says:

I admit. It was the best video ever. Nothing like this is explained in text books.

Muhammad Farhan Khan says:

Could you please also explain PV-Diagram and TS-Diagram. Also different types and difference between Expansion, Solenoid and Pump Down valves and their workings. Explain how to calculate heat absorption and temperature leaving from evaporator and heat rejection and temperature from condenser coils. Especially for R41A and its properties.

Michel Dufenberg says:

This is the best video for many reasons:
1. You actually know your stuff
2. You are confident.
3. You are a good teacher.
4. You are actually teaching and not reading from pre-recorded stuff.
5. Excellent pace and not robotic.

Robert Acree says:

Great content! Straight forward and clear. You know your last name, roughly from Gaelic, stands for expert?

Optime Energy says:

Should really draw the 4 main components in the some position as they would be in an enthalpy graph. Saving confusion later.

Methodist 17 says:

This may sound silly but, if the suction line is under a positive pressure before it reaches the compressor why is it referred to as a, "suction line", my interpretation is that suction implies negative pressure (a vacuum). Is the compressor not just forcing the refrigerant full circle, or is there a negative pressure pulling the refrigerant at the compressor that the gauges don't detect? (maybe my definition of suction is incorrect) Could you please explain?

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