Basic Refrigeration cycle – How it works

Share it with your friends Like

Thanks! Share it with your friends!


In this video we look at how a refrigeration cycle works and use colour coding to see how the temperature and pressure changes throughout a system. We include photographs of real items so you know what to look for in the real world.
We look at the condenser, evaporator, compressor and expansion valve.


Sign up for our FREE engineers newsletter for updates, competitions, news and offers
🎁 Link:

Get this HVAC book ➡️
Check out this Thermal Camera: ➡️
Buy this multimeter: ➡️

😎 Get your Engineers T-shirts, Hoodies, Cups & stickers here:

☕ Buy Paul a coffee to say thanks

🙏 Support us on Patreon

🕵️ Check out our website!

👥 Socialise with us

👀 Links – MUST WATCH!! 👀
How water cooled chiller works Prt1 –
How water cooled chiller works Prt2 –
How Air cooled chiller works –
How Absorption Chiller works –
How Heat Pump works:
Primary & Secondary system:
Fan Coil Units:
VAV Systems:
CAV Systems:
VRF Units:
HVAC Basics:
Heat Exchangers:
How a Chiller, Cooling Tower and Air Handling Unit work together –

🔧🔨 Tools you need 🔧🔨
VDE Screwdriver set:
Ratchet Screwdriver set:
Tape Measure:
Drill bits:
Angle finder:
Multi set square:
T handle hex allen key:
Digital vernier:
Head torch:
Pocket torch:
Magnetic wristband:
Laser distance finder:
Gorilla tape:
#HVAC refrigeration #engineering


The Engineering Mindset says:

⚠️ Found this video super useful? Buy Paul a coffee to say thanks: ☕


Pyae Phyo Aung says:

It's really helpful to me. Thank you

Gal Shaviner says:

thank you sir.

Gla3dr11 says:

Good video overall, I know it's old, was looking for videos to explain refrigerant cycle to show my trainee. I am not sure I could recommend this video, however. Just some things that could help others who see this:

-being overly specific on the cold/normal/hot etc of line temperatures isnt really necessary. For all intents and purposes we call anything after the compressor and moving downstream to the metering (expansion) device high temp, and we call anything in between the metering device and moving downstream back to the compressor, low temp.
-you state the line in between the evaporator and compressor as warm, but the line between the condenser and metering device as normal, when in reality the line after the evap is usually 30-40 degrees colder to the other line and would never ever be warm.

Shaikh Mohammed shoeb Hussain says:

Audio 🔊 quality is badd

Timothy Jones says:

No hate but a refrigeration cycle has 5 main components it starts with the comp then cond ten expvalve evap and then the pipes every system must have pipe work

Dod Reid says:

Great video.. however… you have described a “air conditioning system” the reason for this is when you mention refrigeration cycle but you clearly identify “warm” gas at a low pressure…!!

As a 25+ year refrigeration engineer I would be worried with “warm” gas coming back to my compressor..!!!!

Emmanuel Encina says:

please louder the voice like other engineering mindset videos. barely hear it on outdoors with earphones but explains very well


This video is more helpful on 1.25× playback speed !!

Ed says:

you should do your own courses.

Dipesh Nepal says:

Could you please make videos on Homogenizers, Pasteurizers, PHEs, Ammonia Compressors, Screw and Reciprocating Compressors!

Christos K says:

Best explanation , Thank you!

HiddenArt says:

You helped me so much I wanna buy a few stuff love those hoodies n shirts you got I’ll check them out soon

Victor Alcaraz Jr. says:

Need to speak up in this video

what is that??? says:

his voice is really soothing :0

Sahinlu Yun says:

The best explanation stage by stage

Alexandre Dos Santos says:

je veut la traductiiiiiiiiion

James Fox says:

nice, mate. niiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiice

prerna mishra says:

Even though English isn't my first language. I can hear your voice clearly. Thanks for this video.

prerna mishra says:

You taught me more than my professor was trying to teach me during her 2 hour long lecture.
Thanks for this video. It is really helpful. 💜

nilupa illangarathna says:

Man you're amazing.. Best explanation ever💪💪.. keep it up..

terry qhobela says:

Thank you soooo much, this is the BEST description I could have asked for!!!

Write a comment


WordPress SEO