Air-Cooled vs Water-Cooled Chillers and how they work with Air Handling Units

In this video we learn how Air-Cooled and Water-Cooled Chillers work with Air Handling Units to Cool Buildings. We learn the advantages and disadvantages of air-cooled chillers vs water-cooled chillers.
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#MEPAcademy #HVAC #Chiller

[@calebhein2788]

I'm a mechanical journeyman at a hospital with 6 giant chillers. I primarily deal with the controls and vav's, but my buddy works on the chillers. It's pretty cool to work on them.

[@MEPAcademy]

Great job. Learn all you can.

[@Romikajasrotia]

Excellent video! I am a Civil Engineer trying to understand Chilled Water Systems and your videos are the best.

[@MEPAcademy]

Glad you like them! Thanks for watching.

[@yvonney1684]

These videos are awesome!!! i dont have a background in engineering but these videos make it so easy to understand the basics of HVAC!

[@MEPAcademy]

Thanks for watching.

[@alfredomarquez1485]

Thank you for the content. I just passed my PE Exam, but getting more practice is always great.

[@MEPAcademy]

Congratulations on passing the PE exam, that's a great accomplishment. Thanks for watching.

[@yassinesebbata3284]

Absolutely talented explanation! I have been in this business for 15 years and you make me love engineering even more. Thank you.

[@MEPAcademy]

Thank you, glad it helped.

[@mehmetutkuylmaz6319]

Cristal clear explanation I scanned many videos the most informative one is yours, thanks!

[@MEPAcademy]

Glad it was helpful! Thanks for watching.

[@BeforeIForget101]

Thank you a lot for your video lessons. It helps me in English learning because I'm an HVAC engineer from not English speaking country.

[@MEPAcademy]

That's great! Thanks for watching.

[@johnkurtz9304]

Thank you! I started working at a facility 10 months ago and they have air cooled chillers but are switching to a water cooled chiller. I really didn't understand either system until your video!

[@MEPAcademy]

Glad we could help! Thanks for watching.

[@galbavyrobert]

Great Explanations ! Thank you !!!

[@MEPAcademy]

Thank you

[@omnious42]

I am just learning for fun and I love these videos! 👍

[@MEPAcademy]

Thank you

[@nalendrawibowo6860]

Really great Presentation and Explanations - THANK YOU!

[@MEPAcademy]

You're Welcome

[@fadianhakim7829]

Great video with clear explanation!!

[@MEPAcademy]

Thank you!

[@dmaxsaint5895]

I am doing a school project using revit MEP This video really helps me a lot! Thank you

[@MEPAcademy]

You're Welcome

[@donnymartinez7253]

I need this software revit mep I need the serial for 2022 version 😢😢

[@user-mn2ec7st3o]

Thank so much for your sharing material presentation, it is really useful

[@MEPAcademy]

Glad it was helpful! Thanks for watching.

[@elsenseferli4920]

Thank you very much for useful information

[@MEPAcademy]

Thanks for watching.

[@elmz411]

I am a mechanical engineer and I just want to let you that your videos are amazing!

[@MEPAcademy]

Thanks for watching.

[@abazism]

Please make more videos. You explain things very easy to understand.

[@MEPAcademy]

We will! Thanks for watching.

[@sujithasanka7384]

Thanks for explaining.

[@MEPAcademy]

You're welcome! Thanks for watching.

[@bharatindia1289]

Best of the best always, need more and more videos like that👍👍👍🙏👌👌👌😎🇮🇳

[@MEPAcademy]

Thank You

[@deavonsanchez3084]

That was an amazing video.

[@MEPAcademy]

Glad you enjoyed it Thanks for watching.

[@Dirtydollars020]

Great video !

[@MEPAcademy]

Thanks for watching.

[@ChillerTechSupport]

Well Done 👊

[@MEPAcademy]

Thank you.

[@mrnoe67tiktok]

thanks

[@shamsheralam8862]

Very useful thanks, please make more vedioes.

[@MEPAcademy]

Thank you, I will

[@harshad9263]

Superb informative video

[@MEPAcademy]

Glad you liked it. Thanks for watching.

[@manojillangasooriya3590]

love it.

[@MEPAcademy]

Thank you

[@jovelsan1]

Very educational video, thanks Sir. Can you make also video about Fire Fighting System.

[@MEPAcademy]

Noted. Thanks for watching.

[@user-em5br2jh5x]

THANK YOU

[@MEPAcademy]

You're welcome. Thanks for watching.

[@balbahadur1827]

very good 😊

[@MEPAcademy]

Thank you 😊

[@brlinrainf]

good video

[@MEPAcademy]

Thanks for watching.

[@user-jn4xr5yz7y]

Thank you for the adequate explanation, but you may have forgotten an important part. In the event of a variable load on cold water through several air treatment units. You need to reduce the speed of the water pump. Therefore, you must control the operation of the water shredder by placing an insulated water tank suitable for the load. It controls the capacity of the shredder through a special temperature regulator or several thermostats depending on the number of compressors in the shredder.

[@MEPAcademy]

Thanks for the comment.

[@md.ataurrahman5672]

Wow

[@MEPAcademy]

Thanks for watching.

[@viniciusbraga5846]

Can the chiller be substituted by a heat exchanger in a water cooled system ?

[@MEPAcademy]

In some geographical areas this may work. See our video on Waterside Economizers to get a better understanding. kzbin.info/www/bejne/gHzRq5t6mtmpoLM

[@user-so9yi9py1i]

Professor, can you send a link to a simulation program for cooling and heating systems for mechanical and electrical parts and control circuits? Thank you.

[@MEPAcademy]

We don't use those programs, but you can find them by searching Google. Here is one of them hvacsimulator.com

[@JtotheRizzo]

Thanks for this explanation. Had a question regarding the check valve screen filter installed at the FCU. My check valve screen filter is installed on the return line (after the coils)? Is this right? It seems sensible to have this screen filter to be installed after the shut off valve and before the chilled water enters the FCU. Can you confirm?

[@MEPAcademy]

If the valve is also used for filtration, then having it on the supply side before any coil or control valve would better serve its purpose of preventing debris from collecting in sensitive control valves or clogging heat exchangers.

[@JtotheRizzo]

@@MEPAcademy Thank you first and foremost for replying. That's what I figured. Also, all the piping that carries the chilled water and hot water to our FCUs are ALL Black pipe (same pipe used in gas piping applications). Not sure if you know NYC code but this doesn't seem to be code unless I'm missing something here. Building was built in 2018. It's a newer building

[@MEPAcademy]

@@JtotheRizzo Not sure about New York, but its common for engineers to specify copper for all small piping up to 2" or 2-1/2", somewhere around there, and everything above that to be installed using carbon steel piping.

[@JtotheRizzo]

@@MEPAcademy The Risers are 1-1/2" (maybe 2") black pipe (looks to be iron and not steel) and branches are 3/4" black pipe then transitions to copper at the shut-off valve to the appliance (FCU). I'm thinking this is the cause of my cooling issues because my HVAC guy found a lot black sediment in the chilled waters. He thinks it's coming from the Riser and Branch piping that is running throughout my building and causing inefficient cooling with some of the apartment's FCUs. Would love to hear your thoughts on this.

[@MEPAcademy]

@@JtotheRizzo Black sediment could be many things. what kind of chemical treatment is the chilled water system receiving? Are there dielectric unions or nipples between the black pipe and copper? Sounds like the system needs to be flushed. Have you cleaned the tubes of the chiller?

[@spssgs]

hi...sorry for personal question...but a kelvion gas cooler with 8 total fans in two rows is being installed at the roof of a supermarket next to my bedroom but 3 metre below. in terms of height..do you think this will make too much noise and the heat from the fans will be damaging...would there be any difference during summer and winter noise and heat levels...thx a lot

[@MEPAcademy]

We would need to see the submittals for the unit being installed. The submittals or engineering manual should show the NC (Noise) levels that will be experienced at different distances from the unit. You state your 3 meters above, but how far horizontally are you from the unit? Sound will reverberate off the walls surrounding the unit if in proximity to walls. Wind direction will affect the discharge air coming off the top of the unit if in a windy area. Heat rises, so the outdoor temperatures will have some effect, which is more important for you during hot days, when additional heat is unwanted. Your local mechanical code will dictate how close this piece of equipment is allowed to a property line. Good Luck.

[@spssgs]

Thanks a lot...horizontally we are 1 meter from the coolers....the sound pressure levels are 27 and 17 at 10m during day and night...the sound power level is 61 and 51...thanks

[@spssgs]

the unit name is Kevin GF -MC104G6

[@spssgs]

If there is a email or phone you can share, I can email you details and we can chat...I am very happy to pay for the consultation...thanks

[@MEPAcademy]

You might want to contact a sound consultant. That is not our specialty. They can do field measurements, which we don't do. Everything else is just theory from a text book. You need field measurements to document the actual conditions as there are many factors that can play into how sound moves off surfaces.@@spssgs

[@chikaokoro7445]

Is there water together with the refrigerant inside the chiller? Where is the inlet water coming from that transforms into chilled water for AHU and condenser water for cooling towers? I’m confused

[@MEPAcademy]

The water and the refrigerant never mix, but transfer the heat between them using a heat exchanger. See our other video on Chilled Water Central Plant basics as we believe that might help you better understand. kzbin.info/www/bejne/sJrXZ5iNjpebepo

[@derrickgarcia303]

How can I access the program you are using? Would like to train our facility staff. Thanks!

[@MEPAcademy]

No sure what program you're referencing? All our videos are made by our Engineers.

[@goldennuggetinfo8468]

@@MEPAcademy The program you've use to build the graphics in the video

[@donnymartinez7253]

How I can get this software revit mep ??

[@MEPAcademy]

It's made by Autodesk. Here is a link to the software. www.autodesk.com/products/revit/mep

[@sujithasanka7384]

🎉🎉

[@MEPAcademy]

Thanks.

[@OghenejesseUfuoma]

What is the function of the boiler in the cooled water processe

[@MEPAcademy]

Temperature and humidity levels vary per geographical area. The heating coil can be used when dehumidification is required to drive down the humidity and then bring up the temperature so that it's not too cold, and it can also be used in cold climates where additional heat is needed to supplement any terminal zone heating. The boiler would also feed any VAV reheat Coils are Fan Coils that are not shown in the image.

[@OghenejesseUfuoma]

Please what is the boiler function there am a bit confused

[@MEPAcademy]

Temperature and humidity levels vary per geographical area. The heating coil can be used when dehumidification is required to drive down the humidity and then bring up the temperature so that it's not too cold, and it can also be used in cold climates where additional heat is needed to supplement any terminal zone heating. The boiler would also feed any VAV reheat Coils are Fan Coils that are not shown in the image.

[@tinymanthebeast]

air cooled chiller 500 tons cooling capacity. water cooled chiller 5000 ton cooling capacity.

[@MEPAcademy]

?

[@sebastianbalbo1906]

Bravo

[@MEPAcademy]

Thanks.