How Chiller, AHU, RTU work - working principle Air handling unit, rooftop unit hvac system

[@EngineeringMindset]

⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset

[@EngineeringMindset]

We have a long version here currently kzbin.info/www/bejne/oZ3KmKKma5Wpoq8

[@abbyab-ab4546]

The Engineering Mindset

[@EngineeringMindset]

@معتز احمد حسن محمد we covered this in a video already

[@EngineeringMindset]

@@sekhartrinadh9063 we have an AHU video

[@mathjoel369]

I will once I get a job. learnt a great deal from you Paul. Much appreciated Thumbs up :)

[@sunshine7453]

This is a beautiful general explanation of different cooling systems. After years of experience, I am amazed that I still learn something new from you. Thank you!

[@mangekyoitachieditzz1443]

Yes thisbis beautiful information, am kinda still new to this, really want to be a Mechanical Engineer, so i am really excited with all this infor

[@0x-X-x0]

@@mangekyoitachieditzz1443 have u become a mechanical engineer?

[@TheChillerGuysHub]

This guys a legend, been following him for many years

[@ollytte]

thanks guys for making an effort to create educational videos, very helpful to understand the principles

[@fernandosoler3005]

Explicacion detallada de algo tan amplio en forma muy interesante.Gracias mil bendiciones a todos los provedores de informacion tan util.

[@hvac_team]

Просто, доступно и понятно. Спасибо за ваши видео по HVAC!

[@Samara200M]

I like this chiller system , I wanna learn about it

[@christhehaitian]

Outstanding video, simple and to the point!

[@ernestgodin4025]

Hello Paul l think your the best in explaining the systems this date is Feb. 21 2024

[@mygodforbid]

Thank you for being a wonderful teacher. you have my humble gratitude

[@docbrown7916]

I have seen geothermal systems augmenting var HVAC systems, not too often but here and there, aux system used to just help maintain a temp range. I've also seen rain collecting and filtering systems to augment coolers, someone just using available options to invest and s ave $$$ long term. Even saw a set of small wind generators on one rooftop to support the HVAC specifically. Seen a lotta unusual stuff too, but hey construction and environmental systems are a funky field. Enjoying the vids, most of it I know already but you never know where you may learn something new, and although no longer working it's fun to watch and the occasional flashbacks can be amusing, especially residential customers.

[@HuyPham-rn3mt]

I would love to know more about the differences between VCD and VAV . I hope the next video you will explain about them

[@donaldbanda3578]

Wow , amazing but simple explanation. Thank you so much for sharing this information and knowledge ❤❤🙏🏾🙏🏾🙏🏾

[@bahterastudio7827]

thank you for posting this, i love it. its better than my lecture slides :) thanks a bunch again.

[@akhtarreyaz376]

Very helpful please keep uploading

[@Validioxus]

Quality content!! Very well done, thanks

[@firozkhan-gy2xi]

Thank you very much...that's a great explanation with good details, very useful

[@wakandom]

Nice presentation.

[@noorafridi7207]

Thank you from Pakistan

[@alsalim5645]

Your all video is so helpful and easy to Understand what you went say.

[@sittichaiboonkong]

Great info and Thank so much for good animation.

[@florentinocervantes7017]

Its really helps for a beginner like me in HVAC. Thanks for sharing. fvcjr.

[@tuyishimireelie3538]

this is very helpful for beginner!!!!!!

[@TonyPadgett]

I continue to hear our engineers talk about “package unit”. Is this the same as an RTU?

[@brickcitynetwork]

you can somewhat say that .. difference is a “package unit” can be on the roof or ground, as for the “RTU” it can be a package unit meaning A/C and Heating or it can be a A/C condenser unit of a “split system” on the roof .. hope this help ..

[@CryptoLogicGaming]

Rtu means roof top unit Packaged unit means it’s an all in one does the heat exchange all in one box. Essentially a box that takes and supply’s cold air and exhausts heat elsewhere.

[@alexanderboyd2280]

In a way yes. RTUS are packaged hvac equipment placed on roofs. Package units are placed on the ground but usually can contain similar components

[@viniciusbraga5846]

Yeah, some buildings are even putting Packaged units at strategic floors inside the buildings

[@luismelchor3817]

RTU means RoofTop Unit. Package unit is a unit that heats & cools.

[@saniarao7250]

Favorite channel

[@akhileshbhise7266]

Nice video. Loved the intro music as well

[@abednicomoagi5358]

Excellent video. Thanks for sharing.

[@Blank-n7c]

Unique chiller components

[@HVACTutorial]

You are doing a great job, keep it up

[@hvacleads]

Great video

[@khalidsr1]

Very useful information 👌 thanks 😊

[@niagara1]

very informational and educational video. Thanks

[@darioabreu5995]

Thanks soon much clear explanation

[@VolleyBillFisch]

Can we talk about how great the back-beat is through this instructional? F i r e

[@luizmagalhaesbr]

beautiful job !

[@sparfa]

love all your video. keep on doing it. from Malaysia

[@mukeshkumar-sl4wu]

Great information thanks

[@rawooframzan3358]

very nice explained

[@abdalrahmandaif5243]

Thanks alot for these useful info. Greatly illustrated

[@elekzon]

Very educative indeed. Thank you so much.

[@henrychan1996]

Thanks tht save my career life

[@henrychan1996]

I dont get a clear mind set on BS knowledge even when I was at the uni.

[@EXPLORINGPIPING]

Make a video on district plant

[@javier_2380]

Just discovered this channel. And like it a lot. I am a Plant Operation Director in the boston mass area. I would love to shoot a video over at my building. And use it to help others and myself how boilers/chillers/re circ pumps etc etc work with eachother. A real life video. Are you interested? I would love to due this at my commercial building. I would learn so much as well.

[@prafultimande6730]

very nice

[@ayenewgetnet1420]

This is beautiful

[@epievlog3219]

great presentation sir more power to you.just continue educate us about refrigeration

[@Mayuri1994ify]

suscribing to this channel , good animation and good topics

[@lighttv3770]

Nice information.

[@murugank242]

thank you for this video valuable in knowledge ....

[@md.younus1273]

Murugan k

[@quanghuyletran7812]

SUPER USEFUL

[@srijeetm]

Did the VRF system videos get taken down? Was trying to find the playlist for a coworker. Thanks again for all your hard work!

[@EngineeringMindset]

Yes, please watch our supermarket hvac video for VRF system

[@EngineeringMindset]

New VRF unit video here:➡️ kzbin.info/www/bejne/apqUiZqZhZano9k

[@1VVSA]

You have anything on axial fans?

[@jainpiyush11]

Good video

[@jakesales7321]

Could we have a video on condensed water package units at all?

[@edunewton1386]

Many thanks for the video, it is really helpful

[@mohammedtauseefraza3797]

Please make video on HRU/ERU!!!

[@EXPLORINGPIPING]

Sir amazing, 12 month ago I subscribed ur channel, only 60 thousand . But now 340000 . awesome

[@DharmendraYadav-ep7tq]

Thank you sir

[@CASH-TO-THE-MERE101]

As always, well visualized...👑👏👏👏

[@tasdinbiddu2377]

Learn more about HVAC.

[@gokmen9928]

Thank you for this amazing video.. Regards..

[@pauleedeehimself8489]

Maybe good to add also the possibilities of cross stream heat exchangers, keeping heat in when needed and als create a possibility to use free cooling instead of just the DX to do so.

[@BragaLuckas]

I really like the channel. Could you do a video explaining how economizer modes in hvac units help save money on utilities? Thanks

[@EngineeringMindset]

Check our chiller terms essential video, should have covered it there.. I think

[@arsalanchishty8985]

It saves energy by flashing some of the liquid refrigerant coming back from the condenser. The evaporated or flashed refrigerant lowers the temperature of the remaining liquid refrigerant going back into the evaporator and this improves efficiency since you have colder refrigerant in the evaporator to absorb heat. Hope this helped!

[@sustainablepaths2015]

Thank you very much for providing valuable knowledge for free.

[@EngineeringMindset]

You're welcome, subscribe for more!

[@Aenigmaa]

Hi! Great video! One thing I thought about though was the image seen at 5:38. It shows the air cooler placed before the air heater. Should preferably be reversed!

[@COUPEDUMMY]

Im looking into the sequence of coils atm. Onsite atm all AHU's have preheated coils>prefilter>bagfilter>Chilled water Coil>Heated Coil. So would like to know approved sequence....as all the LTHW preheated coils have rotted from exposure to elements!

[@m.samjebaraj7407]

Dx system videos please

[@bakirhossain6601]

thanks sir,, from bangladesh

[@tonylo.6766]

Informative Thank you.

[@LinusN1887]

Hi there. I believe you have the piping from the chiller to the pumps switched around like in your other video. Correct me if I'm wrong. I'm an Elec PE for an MEP firm trying to get a basic understanding of HVAC systems.

[@masudurrahman1549]

great concept....Tnx.

[@BenzoNZ]

Thanks so much for this video. Ive come across the typval water cooled chiller in the basement with the cooling tower on the roof on multiple buildings. Can anyone explain why the chiller isnt on the roof too? I must be missing something but it seems like a lot of extra chilled water piping having the chiller in the basement?

[@ramchandrapatel8884]

nice

[@Deeeeeeeeeeeeeeeeeeeeeeeeez]

2:51 Is there a particular reason why buildings have the same amount? Is it a manner of volume of medium displacement needed? Can someone explain?

[@storylinewithstiveostin6034]

Explain AC indoor and outdoor unit PCB working.

[@Losangeles1980]

Thank you so much sir-

[@mirzarazin4261]

Hadir support ✅✅✅

[@azreehakeem1042]

Bu**h

[@rabiatulatun706]

Abng kv mna

[@brendaceja290]

You try to give the video more brightness it will be great if you do

[@totoalboayz4872]

Thanks for sharing

[@awesometrips7276]

Thank you very much...

[@rajrnair7125]

Sir I am just a beginner in HVAC field and your videos are very helpful for learning. Sir i have a doubt. From where this chilled water is supplied. In video its showing, supply and return is connected with evaporator. But my question is inorder for chilled water to circulate it should be supplied initially from some point. Right?? So, sir from where does it come from... Please answer . I watched so many videos still not getting an answer for this. Thanks

[@EngineeringMindset]

Gets topped up from inlet at pressure tanks. See our chilled water schematic video

[@rajrnair7125]

@@EngineeringMindset thank you sir for your reply. Sir can i please get the link for that video. Thanks

[@rajrnair7125]

@@EngineeringMindset sir, the caption for the video you mentioned is "Chilled Water Schematic - How to read Hvac Schematic diagram" . If not, sir can you please send me link for that. Thanks

[@rajrnair7125]

@@EngineeringMindset Sir, In chilled water schematics video, a pressurisation unit is mentioned. Is this the one used for initial supply?? Sir can you please reply?

[@natehour]

Thank you for the helpful videos! Is it possibly to convert a 4 story office building, 95K Sf from cooling tower/AHU system to RTU system?

[@anurag9510]

Sir in the video u mentioned about district cooling network. Can you explain a little bit

[@ItsMe-cz1yn]

Please make a video animation on boiler installation and piping all process please!

[@drunyon88]

The links for absorption chiller and air cooled chiller are mixed up

[@SUNILSSHK1]

Thx

[@nayeemahmed5575]

good sir

[@ranamubeen5678]

Hy sir plz discuss Taran Rart Ac chelr tarb shot and error message..

[@shyamlalbimengineer1875]

Sir please explain about hydraulic calculation of standpipe and sprinkler system

[@D4LJIT]

Hi Paul how do you size a buffer vessel for both chilled and heating systems and how it works too

[@mcan-piano4718]

Do you mind if I ask something? Do you have any video about the difference between all-water HVAC system and all-air HVAC system and which units does they use AHU for all air HVAC and also AHU for all-water HVAC but what is the purpose of all-water because it still has ducts for AHU, I didnt exactly understand their difference and benefit over each other. It would be great if you had a video about it. Your channel is great. I hope you will be so successful and I will be glad to support you :)) Thanks for everything.

[@cdcccdcc1286]

As a general fact, water is way better then air in transferring heat. My assumption is that for systems that generate a lot of heat water becomes the better option.

[@GauravAgarwal247]

What about storage of the working process fluid (i.e. water)? Isn't there any storage required?

[@mohammedabdullahkhan4264]

Rtu you mean to say terminal units, can you explain bms sequence of operation

[@entertainmentknowledgewith6229]

thanks for the awesome demonstration and i want to ask you a side question ;are you England as your accent seems British ?

[@EngineeringMindset]

Yes my accent is British English but it's also mixed with some other places I've lived

[@mohdzakri699]

can u explain about ccfcu please

[@laff8996]

Any help is appreciated, would an AHU be connected to a RTU to distribute the conditioned air, or would the RTU do all of this itself?

[@ericphantri96734]

It use concrete reingorce chanel so handle extremely high pressure

[@naseeruddinshaik3884]

hello sir, what is difference b/w FAHU & AHU ? How they work together? Are both same units? can you please make a video on it?

[@EngineeringMindset]

AHU video coming next week

[@ashokkumarsharma6382]

fantastic video sir. please upload wirring diagram video of AHUS ,chiller, vrf sir...please

[@EngineeringMindset]

New VRF unit video here:➡️ kzbin.info/www/bejne/apqUiZqZhZano9k

[@anbuselvananbu6170]

Very supar

[@jimtorres6783]

What you were to run water thru the window frames keeping at a pressure so that it evaporates and send it to condenser inside the building.

[@squirtlehvac8962]

Can you do refrigeration rack systems? Thanks :)

[@jimeshmehta4592]

Chillers compressor working details of part, pressure, temperature, system explain

[@EngineeringMindset]

Covered all of those here theengineeringmindset.com/refrigeration/