AHU Chilled water pipe connection| HVAC System | AHU Part-2

[@HVACWorld]

Why do we connect CHWS pipe line in bottom of the cooling coil and CHWR pipe line in top of the cooling coil.. comment your answers

[@shahabajmullani9553]

CHWR has warmer water than CHWS, as warmer water has lower density it will be easily go up so load on pump will automatically reduces

[@shadabzeya8952]

The air which remove from the cooling coil is cold and if we connect the cwrl the that air become hot. Hence reduces efficiency of Ahu. However we connect cwsl.

[@freecopyrightsounds5560]

Because of gravity

[@jollyscaria1922]

Cooing coil circulting supplying up and bolwinging distbuting room cool heating retanning line outgo $$$explas shell and tubes are fitted in side the steel shell copper tubes as shown in the diagram . Cold water is circulated through the tubes by a watwr circulating pump The high pressure vapourcoming outofthe

[@jollyscaria1922]

Cold water culating throughthe tubesandthe vapour changesto liquied.thecollected at the bottom ofther condenser passtothe passed direactly tothe evaportor The hot waterfromthe tubes thus passtothe coolin towerand coold the coldwaterfrom the cooling tower is again circulated through the conder by water pump This continued when the water continuously circulaters rhhrough the tubes the inside becmoes coated wuth scaleand orher materials in water .. dis tey buing supppling

[@pranitbraganza]

Chilled water is supplied from bottom so that the coil runs full of water, it will advace slowly filling the pipe completely....if we supply it from top, water will rush through the coil downwards and the water may not have full contact with the pipe surface leading to lesser heat exchange.

[@HVACWorld]

100 % correct.....

[@irshankhan7158]

sahi hai bhanjee 🔥🎉

[@Realityshorts8]

Achha lga hai Sir aapka video .. Ummed krte hai aap aise hum knowledge dete rahenge taaki hum jaise new chiller tech v ek achhi job pa sake

[@layaqatali9044]

Nice explain❤

[@ramsevakrajbhar3170]

Ok bahut badhiya samjhae Hain aapane

[@nirmal7061]

Sir bohat badiya ...please vedio banate raho sir please

[@khokansardar]

Superrrr superb knowledge full video bro.

[@HVACWorld]

Thanks 👍🏻👍🏻👍🏻

[@shaikhfaridh4269]

very well explained process and description of each items used.

[@layaqatali9044]

Pressure gauge ke thirmovell me Glisreane liquivid dalte hai, normal tempreture ki jagah. Ager zyada tempreutre hai to selicon liquivid dalte hai. Ye pressure ki wajah se huwe vibration ko control karta hai jisse accurate reading le ja sake. Sath hi ye gauge ke parts aur dial ko bhi kharab hone se bachata hai.

[@md.shahid4305]

Ahu unit ke supply line me drain cock kya kaam hota hai

[@hsk.123kushwaha6]

Nice information sir

[@MohammadfirozKhan-lc1jo]

Very good explain sir

[@fatdubai]

Very informative video Thanks

[@shabbirjaan8480]

Very well explained process

[@ssraorao7565]

Excellent explation thank you sir

[@jollyscaria1922]

Vrey good exlant noy belved baiwhat is sayed bai

[@parvejali5088]

Nice vidios 🤟👌

[@mohdumar2692]

Good information

[@dkdharmendraofficial4963]

Very good information sir ji ❤

[@mechanicalirshadirshad1092]

Excellent 👌👍

[@sunnymodi9393]

Nice, very helpful. Upload more videos on HVAC piping system please like for Pumps - vertical & horizontal, chiller, boiler pipe connections. Thank you.

[@HVACWorld]

Thanks

[@habibarmaan8289]

Awsm trick boss

[@Actively-b8s]

Warm water rises due to its lower density compared to cooler water. By placing the supply pipe at the bottom, the warm water enters the coil and naturally rises as it absorbs heat from the air passing over the coil This rising motion helps maintain a consistent temperature gradient, enhancing the heat exchange process

[@angreentachairconditioning4687]

Bahut pasand aayi bhai

[@shaikhshahzad7177]

The CHWS always be connected to the bottom side of AHU because we have to filled the pipe lines maximum by the chilled water and there is no air vapor existing during the CHW circulating. also its helps to make a proper cooling due water resist to up side and absorbed to all heats.

[@HVACWorld]

One of the greatest answer i received....

[@shamsuddinansari3001]

Good

[@mdaafanhasan2651]

You explained very well

[@zabirhussain5582]

Ahu ke bottom se child water suply hum isliye conect krte hai heat transfer jo ho wo better tarike se heat transfer ho dusra child water suply ata hai child water se air me heat transfer ho jab hamara child water ata hai to wo cooling coil se feel hote hue ata hai isliye niche se child water suply ko conect krte hai agar hum upar se conect krege to wo crevety se child water direct niche aa jyega Or wo cooling coil ki contect me jyda der nhi rah payega isliye niche se child water suply line ko niche se conect krte hai

[@HVACWorld]

Correct

[@aadilraza5842]

Ahu pressure gauge me inlet jiyada hoga ya outlet

[@satyamprajapati9064]

Nice explain

[@bikashbera1113]

very good explanation sir

[@KumarD257]

Very good.

[@roshanbharat8962]

Why 3 way control valve is not shown?

[@abdulquadir278]

Chilled water pipe connect from bottom because it takes time to return due to time delay the cooling efficiency is good. if we connect from top it passed very fast because of this cooling will be affected.

[@bhatuborane7761]

If Balancing Valve will balance the flow, then why we incorporate PICV?

[@akhilkumarpal2104]

Sir ahu ka cfm ka 2nd videos ni aya and sir ahu k blower k barr mai videos bnae .backward and forward blower kya hota hai or kaise work krta hai plz

[@HVACWorld]

Sorry for delay friend.....CFM ka video bhut jald upload ho jayega...or AHU k blower ka video v koshish krunga dalne ki... Channel se jude rhe or v informative videos ayegi

[@akhilkumarpal2104]

Kkk i m waiting for your important videos🤔🤔🤔🤔🤔

[@syedbasheer2299]

👍👍👍

[@ssraorao7565]

Sir please tell me why secondary pipe line and primary pipe line between provided bypass valve

[@mohd.ibrahimsiddiqui6585]

Very good teaching sir Why balancing valve place at return line of AHU, why not at Supply line? Please give me the answer.

[@HVACWorld]

To ensure the amount of water flow across the coil

[@maroofalikhan6210]

Great

[@Vinod-t9p]

Very nice sir, pls tell me about Ahu blower working

[@manojbaghel1175]

Manoj Baghel present sir

[@altafansari3442]

Air cooled chiller me bypass line kyun use karte hai?

[@abdulqayyum5413]

What should be the maximum and maximum flow in picv

[@edilbertotorres4138]

Best parts use

[@mudassarnazar8862]

if we are using PICV VALVE .. what is the need of balancing valve then ? please clarify for this point that i have raised ..

[@HVACWorld]

If you are using PICV valve at AHU connection, You don't need balancing valve. PICV valve self balanced water flow and regulate flow like 2-way valve

[@mudassarnazar8862]

@@HVACWorld ok thanks

[@daudahmad414]

@@HVACWorld sir as you said above that if we are using PICV then no need to install DRV but i saw in other channels they use both Valve at AHU connection so i got confused please clear this one we should use both valves or not as per international standards

[@abhijitkandale458]

Nicely explained

[@mdansaralam2287]

Good sir G

[@doanthanhbinh4308]

Can we place balacing valve at supply water line ?? Any drawback comparing to placing at return line ?

[@suershsingg7584]

chill water piping sply yepsu ke niche rahta h jisese maintenance me aaram rahta h

[@saleetmazhar5978]

Which liquid is preferred in thermowell

[@HVACWorld]

Mercury is ideal

[@anwarulislam1392]

Inlet and outlets pressure differences???

[@mdakhil2647]

Sir....pressure gauge me kitna pressure maintain karna hoga in aur out pipes me

[@HVACWorld]

Difference 0.5-1.0 Kg/cm2 ka hona chahiye

[@jollyscaria1922]

Supply 50 retand55

[@moonsheikh7117]

@@HVACWorld sir usne chilled water line ke supply nd return ka pressure pucha h ? Pls tell me I also want to know I have seen in psi Supply line pressure 100 psi Nd return line pressure 90 psi which means 10 psi difference I don't know in kg/cm^2

[@jishilk9747]

​@@moonsheikh7117 as per ur values, pressure difference is 10psi, i.e. 0.7 bar (or kg/cm2) which is matching with values given by hvac world

[@HVACWorld]

Supply and return line ka pressure defined nhi hota h.... you will get pressure difference always in TDS

[@farhanalam270]

How will be rectify that strainer is dirty...

[@HVACWorld]

By cleaning strainer....first open tha strainer remove the mesh clean it properly and re-fix it

[@aymankhan9001]

Because that will cooling effect in the room go and check temperature thermometer and pressure gauge of ahu..the supply of water down temperature show thwn you will have to check satiner and clean cylindrical filter and fix again

[@mrlee2691]

Heat exchanger accha hone ke liye suplay in me hoti he

[@mohammadreyaz6071]

Awesome

[@DBG01Sanju]

AHU Chill water pipe line ke saat Hot water pipe line be Hoti hai jiska temperature 55 degree Celsius hota hai usske bare me koyi information hai Tu please bataye ....ussi AHu me Kay working role hota hai

[@HVACWorld]

You will get answers to your every question... kindly get the channel membership

[@mdkaif1049]

Pressure drop propeller nhi hoga or AHU k inlet nicha is liya hota hai water flow m Kuch time laga to cooling properly ho ga isliya krte hai nicha se

[@HVACWorld]

Very good 👍

[@satyamprajapati9064]

Sir pid valve open karenge to kaise maloom hoga ki valve open ho gya hai kyoki usper koi indecater ya symbol wha hota nhi hai

[@jigarjidan4248]

Very well explained, but I have a doubt for isolation valve, please could you explain me the working of isolation valve ??

[@victorvalencia5603]

function is close to make maintenence, or change any device

[@AshrafKhan-xu4wk]

sir Chiller ka inlet outlet pressure kitna hona chahiye minimum and maximum

[@HVACWorld]

Coming video me clear kr dunga...

[@AshrafKhan-xu4wk]

@@HVACWorld Thank you sir

[@aymankhan9001]

Chiller ka inlet 7 outlet 12 hota hai

[@sbhosale2101]

@@aymankhan9001 He is taking about pressure, not temperature.

[@aymankhan9001]

@@sbhosale2101 oo sorry by mistake I write down temperature....

[@muhammadfarazkhansu0096]

Water always coming from bottom, bcz if water is passing from cooling coils from bottom to up it will take time bcz of gravity and it get cooled bcz of gravity force concept.

[@enam16]

How much we take average distance between fitting accessories in chws or chwr?

[@iftekharamjad7674]

Inlet hamesha niche iss liye hota h q ki air lock se bachne ke liye hota h

[@virgilionaviamos8784]

Requesting an English language.

[@GaanaShona]

Please do one more video on 3 way valve sytem

[@mdashrafali7368]

Sir, reverse and forward movement aur uske application k bare me video bnaye

[@HVACWorld]

Reverse and forward movement of which part????...plz explain

[@mdashrafali7368]

@@HVACWorld Sir, I want dwtailed explanation of forward and reverse movement of blower as per the requirements and its appliction

[@HVACWorld]

@@mdashrafali7368 ok i will explained it in next video which will be upload soon

[@karelalrajpal]

Sir can you plz 🙏give me your contact no. Jiske dwara me apse call par dowt clear kar saku Sir plz don't ignor me

[@karelalrajpal]

Me mechanical engineer hu me pharma company me job karta h

[@usmanahmed8842]

Nice video But I see arrangement with gate valve instead of butterfly valve

[@HVACWorld]

Gate valve is also an isolation valve....now butterfly valve widely used in ahu for pipe size 50mm and above

[@usmanahmed8842]

HVAC World right sir and thank you

[@HVACWorld]

My pleasure....new video also uploaded on cooling tower...watch for your knowledge and don't forget to share with friends

[@usmanahmed8842]

HVAC World sure

[@mdaakiftanweer9374]

Sir tho definition written mai bhi daliye

[@HVACWorld]

Ok sir g

[@leonardobejosano7516]

Is there English explanation .

[@abdulmasud5990]

Bahi Y stanar retain line rahta sayad

[@rawoofmukri4082]

Nahi supply me hota hai

[@shahrukhqureshi1841]

Why purge valve place child water line and why not place on child water supply line

[@exploreway6935]

Air moves in updirection.. May be that's the reason

[@omkumarsubba3967]

ok 3way velbaka sath ek video

[@HVACWorld]

Ok

[@naushadahmed2552]

Sir how to set balancing valve

[@ashwadkhan9818]

Water ka pressure drop hone ke liye

[@PradeepKumar-gd1ic]

IAQ ( INDOOR AIR QUILET) AHU STATEME KE BARE MEIN VIDEO BANAYE

[@delowarhossain6615]

Vai kichlia niche araho?

[@delowarhossain6615]

Sir

[@Abhishekkumar-fc2nz]

Chilled water pipe neeche isliye hoti hai kyuki, chilled water me moisture ( more weight) and return water pipe ka weight kam hota hai. ( less moisture ) , isliye water ka circulation ache se ho. Please reply I'm right or wrong.. I'm new, (fresher) .

[@HVACWorld]

I appreciate your effort....iske answer ka maine separate video bnaya hai...aap wo dekhe, apka doubt clear ho jayega....

[@aanimevideoyoutube]

Chiled Water pipe Noxhe Se Q connect Rehta Hai

[@HVACWorld]

Kyu k paani upar ayega to gravity k against me ayega jisse ke ye ensure hota h k coil k andr pura paani fill ho or better heat transfer ho

[@mohitsharma-xe2zl]

Mohit sharma Roll no 17

[@godwinjohn2639]

Not in English why??

[@karelalrajpal]

Plz

[@vrkalyan11]

This connection not gives satisfactory result.Only 3 way motorise valve give proper result.

[@bhatuborane7761]

If Balancing Valve will balance the flow, then why we incorporate PICV?

[@hayathism]

My Questions also same to u We r using PICV then why required Balancing valve