Air Handling Unit (AHU) Fundamentals with Cooling Principle and its components

[@chiragkevadiya2234]

Can AHU kept inside premise or it should be in open air like terrace or basement??

[@engineeringautomation]

It can be kept inside and also on terrace.. basement is not advisable as it requires more Ducting works.. if its only a 10% recirculating AHU it can be placed anywhere as convenience. But if the AHU requires fresh air the fresh air ducting to be considered while placing the AHU. Hope this helps. Thanks

[@smitsshah21]

How will the moisture from the closed cooling coil will be transferred to the hot air ? Agreed that there will be heat transfer from hot air to cooling media.

[@engineeringautomation]

Hi Smit.. when the heat transfer happens, the air will collect the water molecules from the cooling coil thus absorbing the moisture.

[@TradingHeights]

pls talk slow and with expression, I felt like you are just reading the script rather than explaining it

[@engineeringautomation]

hi.. thanks a lot for your feedback. Please share and subscribe

[@niharikabhandarkar8821]

I am amazed by the amount of information you've provided in such a short time. It was very very helpful, thank you

[@engineeringautomation]

Hi Niharika.. thanks a lot for your feedback. Much appreciated. Please share and subscribe to the channel.

[@ihtsarl9115]

Thank you for this video but cannot understand how it works as you're talking too fast. Is there a brochure please , Thanks again.

[@dsashokraj1]

Thank you so much for your efforts. It is very useful for BMS learners and working peoples also. So post depth videos of boilers, chillers, heat exchangers, exhaust fan, dampers etc

[@engineeringautomation]

Hi Ashok, thanks a lot for your feedback. Definitely will post more videos in the future please consider subscribing to the channel and keep supporting

[@creepyfacegaming4013]

just got my commercial gas 12 months ago. after 16 years as a domestic engineer. your channel is helping massively :)

[@engineeringautomation]

Hi… thanks a lot for your feedback. Appreciate it

[@AlMolhaqcom1]

Al-Molhaq company for HVAC solutions

[@pawankittuaahan]

Please try to explain slowly not try to finish in fast.

[@CavadCavidHuseynov]

Amazing explanation easy to understand, thanks a lot!

[@engineeringautomation]

HI... Thanks for your feedback. Please subscribe to the channel and share it with friends.

[@ektaaryan3727]

hello @ektaaryan this is user name from fiverr

[@pravintavag12345]

nice video and indeed useful. May I know if there are any classroom courses available in India to learn about HVAC, AHU, Chillers, Boliers, cooling Towers etc and its BMS controls ?

[@engineeringautomation]

Hi pravin.. no online classes.. i am a full time ICA engineer and am doing these videos to help others.. you can ask me any questions related to control & automation

[@zasyed114]

@@engineeringautomation Hi brother, i am expecting an interview wrt HVAC Engineer. Can you guide me as to possible questions. Is there a way to contact you personally.

[@engineeringautomation]

Hi syed.. all the best for your interview. I dont know much about HVAC. I can help u if u want any info regarding BMS. Thanks

[@toyinorodare4072]

Thank you for the Video. You can include on site measurement or Troubleshooting so that we can have more real life practice of the Equipment.

[@engineeringautomation]

Hi Toyin.. thanks for the feedback.. i will try to include it in the upcoming videos. Please subscribe and keep supporting our channel

[@toyinorodare4072]

@@engineeringautomation I have subscribed.

[@edunewton1386]

Hi, Many thanks for your videos especially the one on BMS. Please keep up the good work as many such as myself are benefiting and learning something. I am able to use this knowledge in my work (HVAC Design Engineer) Thanks, Newton

[@engineeringautomation]

Hi Newton, Thanks a lot. This feedback means a lot. This will definitely encourages me to do more videos. Please share and keep supporting.👍

[@applecutmovies2518]

Simple & understand working progresses ..very NYC.. explanation 👏

[@engineeringautomation]

Hi.. thanks alot for your feedback. Please share and subscribe.

[@allwinaugustine]

awsome. clean. discreet. perfect. we want more bro!

[@engineeringautomation]

Hi Allwin, thanks for your feedback. I am glad u like the video. Please subscribe share and click the notification icon to see future videos.

[@sabiraliansari3733]

Plze sir upload the bms operator video as soon as possible thanks sir,

[@engineeringautomation]

Hi Sabir.. will try

[@alexekwueme7477]

Very simple explanation, no buggy words. Thank you so much.

[@loneaasif3059]

nice bro..very helpful

[@engineeringautomation]

Thanks Asif👍 Please support by sharing this video

[@roktimdatta9932]

Sir, where is the Humidifier section in AHU ?

[@engineeringautomation]

Hi Rotkim.. these AHU examples do not have a humidifier section.. in typical AHU with humidifier, the humidifier will be located after the cooling & heating coil before the fan.. humidifier is just a mist of water spraying in to the AHU. Hope this helps

[@impcareer4055]

very well explained

[@actionwoman2477]

liked and shared

[@AJMunna-im7cf]

Thanks❤

[@abalabbadi6251]

Well done 👏

[@khaledamrousey732]

thanks a lot

[@Excellentvlogsandconsultant407]

Thanku sir very well explained

[@engineeringautomation]

Hi Areef, thanks a lot for your feedback. Please subscribe and keep supporting

[@dittualex5135]

excellent videos. awaiting more

[@engineeringautomation]

Working on it.. keep supporting

[@nazrealamkhan601]

Dear your contained is ok, but voice is not audible,very disappointed voice

[@engineeringautomation]

Dear nazre.. thanks a lot for your feedback.. will improve in the upcoming videos

[@brightelectricalknowledge2802]

Hi,Sir I hope that if yoy upload next video in hindi language. thanks.

[@engineeringautomation]

sorry. I am not a native Hindi speaker.

[@rahikhan159]

Hi sir , Make a video on HVAC in which cover combinations of Chilled water and Air supply in Chiller, AHU,CSU,FCU etc. I'm unable to understand water supply and air supply in the building 🏢

[@engineeringautomation]

Hi Rahi.. Thanks for your feedback. Please watch all my videos in the channel. You will get a very good knowledge. If still you have doubts, please let me know I will try to help you understand it.

[@tetrisan6714]

Heat pipe purpose is for reduce cooling load? In residential flays why ahu with heat pipe is used

[@engineeringautomation]

Yes heat pipe is used to pre cool the air before entering the cooling coil. It is used to save energy.

[@scottmorris5563]

Hi Im using an AHU we have electric pre heat coil for winter pre filter bag filter then dx coil for both heating and cooling do you have any ideas as my temperature swing is rapid when the correct air volume is required and my pid loop working on the capacitance loop doesnt seem to stabilise well?

[@engineeringautomation]

Hi Scott. sorry for the late response. you need to tune the pid to allow the valve to open slowly instead of rapid movements. Use the derivative value tune the PID controller so that the controller output will be stabilized without hunting. Hope this helps.

[@gladysnamunyuk9329]

Very informative content!

[@engineeringautomation]

Hi gladys.. thanks a lot for your feedback. Please keep supporting

[@khaledjab]

Great channel and animation.

[@engineeringautomation]

Thanks a lot for your feedback.. please subscribe and support..

[@roheethraut7526]

Very simple to understand. Because the way it is presented and sync with graphics is amazing. Good content

[@engineeringautomation]

Hi Rohit, thanks for your feedback. Please keep supporting

[@ujjalspider007]

Thanks for the session on AHU. Can you able to share some more videos on Chiller unit and Heating unit with all Controls. That will be great for us. Your video is very good 👍.

[@engineeringautomation]

Hi Ujjal, definitely will make videos about chiller and heating unit with controls

[@sandeepsingh-vu9rj]

you have very good knowledge

[@harshilmishra2894]

Which software is used for making this video?

[@engineeringautomation]

Hi, I modeled this in Blender 3D, effects added in Motion, presentation done in Keynote and video created in Final Cut Pro.

[@abdullahalmamoon1281]

Great video, Please let me know which software do you use for making videos....

[@engineeringautomation]

Hi Abdullah. Thanks a lot for the feedback. I use a variety of softwares for each video. Presentation is done with keynote. Motion graphics, vector graphics, 3D animation, video editing are done in adobe products. Please keep supporting.

[@jahangirsami4206]

Can you please please guide, how we control humidity and temp we have reheat coil and chill water coil automation level we have pid ddc controller. we need to know the logic programm

[@engineeringautomation]

Hi sami, i will be uploading soon the full AHU sequence with temperature, humidity, pressure and CO2 controls. Please subscribe and click the bell icon for notifications

[@悲莫再]

Sir, why use modulating valve to provide on off function for ahu? Why not just use the on off valve for ahu?

[@engineeringautomation]

Hi, thanks for your question. Yes u re right, if only On/Off control is required we can definitely go ahead with On/Off actuator. But it do not provide the modulating function if the client requirements changes in future for any fit-out works. However, it is possible with the modulating AHU control, both On/Off and modulating function. Hope this helps.. please subscribe and keep supporting. 👍

[@sabiraliansari3733]

Nice video sir,

[@engineeringautomation]

Hi Sabir.. thanks a lot. Please subscribe and share

[@xlntchoice]

Nice explanation

[@engineeringautomation]

Hi Abdul, thanks for your feedback. Please subscribe and keep supporting

[@Anand-fu3ls]

Sir, can we use HVAC as AHU during winter season.

[@engineeringautomation]

Hi Anand.. Yes you can have 100% fresh air system during winter. so that the CHW energy can be less used. CHW control depends on the temperature set point. if the Outdoor temperature is very less that is sufficient to cool down the space without the use of chilled water

[@samhaazratechnicalsupport]

Very niece sir ji ❤🇮🇳

[@muhammadsoleh9148]

Good Explanation

[@AbdulRehman-gd6qs]

Good work... What software are using for animations?

[@engineeringautomation]

Hi Abdul, thanks a lot for your feedback. I use a variety of softwares for each video. Presentation is done with keynote. Motion graphics, vector graphics, 3D animation, video editing are done in adobe products. Please keep supporting

[@srikanthbhuman5444]

From where onwards the cool water is comming

[@engineeringautomation]

Hi Srikanth, the chilled water will come from chillers through pumps.

[@ranjithsss2004]

Very nice explanation..good work

[@engineeringautomation]

Hi Ranjith... Thanks for your feedback. Glad you liked it. Please subscribe and share with your friends.

[@meckyx]

Is there any video shows how to control the RH?

[@engineeringautomation]

Hi.. please watch this video kzbin.info/www/bejne/qJjOaIiaeryAprM

[@fahadrisvi6785]

Please where will bms Montinor are installed

[@engineeringautomation]

It will be installed in a control room. Along with server and workstation. Controllers will communicate to the server via LAN network.

[@tauhidalam7563]

Hindi me samjhye

[@abdulathiq6549]

sir, could you please explain more about heating coil stages and how to control heating coil thru heating panel.

[@engineeringautomation]

Hi Athiq, There can be different types of Heating coils.. Single Stage heating coil where DDC can Switch On/Off based on the Setpoint. 3 Stage Heating Coil where DDC can Switch On/Off each stage progressively to achieve the desired Setpoint. The last one is the Thyristor heater control, where 0-10V dc or 4-20mA signal from DDC is used to control the heater as per the required set point. If it is Stage type heating coil, the BMS signal will be DO and If it is thyristor control BMS signal will be AO. If you need specific details, please let me know at [e-mail]. Thank You.

[@abdulrahmanshah6040]

Sir can u explain the output signal by control like 0-5v 0-10v and 2-20mA signls where we are using and whats is the advantage and disadvantages over one on another

[@සදුන්චාමර-ඡ4ල]

God

[@shifaparweenp8178]

very low sound

[@engineeringautomation]

Hi Shifa.. sound is fine only.. try to increase youtube volume and your device volume. Also there is subtitles which can help you. Thanks

[@venuskrish2006]

Hi sir

[@engineeringautomation]

Hi Venu..