HVAC Tech School: Understanding Chiller Surge

Tim Chamblee from walks you through what causes chiller surge, what it is, and how to prevent it. Tim is featured on at controltrends.org and is featured on Tim's Tech Tips.
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[@juanrobles9511]

The way he explains,makes it easy for me to understand the concept ,thank you very much sir👍🏽

[@kaysenjaxon9571]

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[@achillesjames2051]

@Kaysen Jaxon Instablaster ;)

[@kaysenjaxon9571]

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[@kaysenjaxon9571]

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[@achillesjames2051]

@Kaysen Jaxon happy to help =)

[@skydyver97]

Man I appreciate you so much 😢..this prepared me for a huge job❤

[@GlauberMGnoPR]

Thank you for your class! Watching in 2020 here! Regards

[@dora2600]

Very important understanding of surge. And very nice explained

[@EricStromquist]

Thanks

[@passthepuck]

WOW...this was a great video.

[@eriknunez8757]

Thanks for this, sir!! Helped me a lot.

[@heidimule]

Fun, fun. I test chillers for a living. hot condenser creates a surge. If my unit surges I back off the vanes which lowers the temp in the condenser. A leak in the chiller that draws in air can create a surge. Or it can be just (in my case) bad test conditions. Watch the evap temp as this can bottom out in a surge. A surge is so loud that it sounds like a train.:)

[@MR-backup]

" A leak in the chiller that draws in air can create a surge. " - Air Purge Separator isn't working then.

[@craiglewis8272]

@@MR-backupis the air purge separator designed to keep up with air leaks? Talking about air leaks from a possible hole in shell,loose connections on fittings,etc

[@craigbutcher9872]

He should cover difference between surge and stall.

[@passthepuck]

Tim, I have an ammonia coolant system, where the ammonia leaves the condenser and goes up to the roof, where it is chilled and recycled back. So, how do I determine the proper temperature of the return. Plus, there isn't any leaf strainer which will cause ammonia to lead into the air. Belts are working, fans are working, I keep getting a surge that shutting off my pump, but the engineer in charge says that it's not the water tower. what are your thoughts?

[@watsonm67]

Thank you so so much for helping me understand this!!

[@stevencastino7315]

i might have this kind of problem. thank you for making a great video like this i learned a lot sir.. i Just have a question sir. my question is i have a water chiller with a screw type compressor and a evaporative condeser. im having hard time because the chiller always shutsdown due to high pressure. and when i open my evaporative condenser it has a water rust on the coils. is that the cause of high pressure on the plant? please answer my question sir i really need a peace of.advice.

[@al6347]

Appreciate you easy to understand

[@rickyhurtado2895]

Thanks for your information

[@technicalchannel300]

Watch my practical video regarding centrifugal Chiller surge observe the lift when low pressure decreasing and high pressure remained same due to liquid control sensor miscallibration in play list Chiller

[@mohamedzakariya3419]

Thanks for sharing

[@rickyg7662]

Thank you!

[@kabirurufai3100]

Great video

[@EricStromquist]

Thanks!!

[@33shabbeer]

sir,does this surge will occur only in water cooled chiller plant???

[@shailendramulgaonkar2980]

yes

[@haiderkhan7465]

Plz write the pressure and temperature of the water when it goes into the condensor and evaporator

[@SlickManChoux]

That's well explained maestro.

[@marialuciaveraandrade3109]

Excelent video. I have a question about consecuences. Wich of the two tipes of chillers surge is more harmful for the chiller? thank you

[@TheChillerGuysHub]

Low end surge will hurt the machine the most, research compression ratio, and how it impacts load.

[@4S7CRA]

Great Explain !!!

[@Toadydo]

Great explanation.

[@Chemoholic_Z]

Excellent lecture on #HVAC

[@Liferoad371]

Great, thanks

[@AdrianButler86]

Excellent

[@vanni0323]

Good day sir, what is the cause of the chiller evaporator drops alarm?

[@salsarovn]

Clear and easy approched explanation to amateur chiller sale like me. Thanks a lot!

[@tirtharajdhawale58]

Bhi blustar ka pant hay watarkuld or Emarsan ka Compressar hay lekin uska lod nahi badh paa raha hay 4 Compressar hay koi 75 pr chalta hay to koi 50 paychalta hay lekin 100 pay nahi chal rha hay to koi sajeshan ho to batao

[@rotstone8390]

Very well explained video. Would severe load changes on the evaporator side cause surge, if not what would the load change impact?

[@srinumaradana9971]

Can u explain 3d view in evaporator working.

[@j.g7877]

Great video thanks sir

[@lighttv3770]

Fine video

[@handyrepairgeneral2451]

Great, what is the superheat and subcooling range for 134a, 407,

[@Antoni-gb9wb]

if the primary pump I do not used wheater it can cause surging on the chiller...can u explain to me

[@luisthesailor]

Very good video...thank you!!

[@majedalothman2661]

Thanks a lot sir

[@723lion]

thank you sir

[@SombraLocs]

Can a low end surge only happen on the evaporator side or can it also happen when you have a low load? If so can you explain how?

[@EricStromquist]

Great question! Short answer is I don't know, but I will find out and get back to you. Give me a couple of days. Thanks for checking out the channel

[@EricStromquist]

Ok here is what I found out: A surge condition that invloves the Evapotartor can be caused by: 1. Low refrigerant from a low charge or a metering device restricition 2. Low Flow which could be caused by water bypassing teh division plate or blocked tubes or air in the water lines or a dirty strainer or Pump/Valve Problem Low load can drop the low side pressure, but teh machine unloads and the high siade pressure also reduces. Hopefully that answers your question. Thanks again for checking our channel out

[@SombraLocs]

@@EricStromquist Thank you.

[@Nookinizm]

Thanks so much for posting.

[@isfeldt34]

Great video! Question though what is the music used in the beginning of this video?Great video! Question though what is the music used in the beginning of this video?

[@mahendrachoudhari9598]

To much helpfully

[@ashfaqueansari1480]

Sir, I have five centrifugal chiller with 2 compressor. when start chiller its running normal. but when start 2nd compressor then alarm will come for surge and machine will be trip from surge. I mean one compressor running with normal but 2nd compressor having surge. same problem all five chiller.

[@thanghahuy372]

Ashfaque Ansari : Maybe condenser water's temp too high, pls check cooling tower capacity or condenser water flow quantity.

[@nandanbisht6035]

Sir Ahu Tr calculation par vedio bnayiye pls.

[@juanzingarello4005]

Doesn't this happen sometimes on startup too? I know some chillers will surge a bit on startup but then goes away. What can cause that?

[@ThomasBahamas]

Juan Zingarello In any mechanical motor-based system, whether it be an A/C, refrigeration system, or your car, there's always locked rotor amperage event for startup. That means the amperage is usually higher on startup so the system can get going.

[@deprauxindollar]

when you start a chiller it has a big different in temp /press change, so it will surge . Try loading it up a little slower !

[@adampiotrmalejewski695]

thanks :D

[@benardasiimwe4414]

Thxs yr A Great teacher

[@obotish1981]

Same thing can happen in a auto ac system if the condenser fan fails right? there is a high pressure valve that can be released

[@electricboogie709]

awesome vid....i cried. sniff. surge!!!!

[@exlhvac132]

what is the purpose of high pressure switch than???

[@sivalley]

EXL HVAC Keep you from starting a recently stopped system when you have a hot evaporator. Latent heat in a recently stopped system will often be enough to do this even when the evaporator is cool.

[@deprauxindollar]

It will stop the chiller instantly to prevent damage / released of Freon. But automatic controllers /sensors will try to keep the Hi-pressure switch from activated.

[@trfx6241]

Surge only happens in water cooled chiller

[@pudzta]

Apit Golden Elbow ever heard of air cooled powerpax chillers? they suffer from this on any days above around 38 degrees C (very common in australia) they are magnetic bearing as well so they suffer even worse from high pressure differential as it forces the mag bearings out of alignment very slightly but still enough to fault the chiller. nothing you can do to fix it apart from fit the powerpax cooling pads to the condenser. they are effectivley celdek evaporative cooler pads however these will very quickly screw the coils

[@amit.k.2292]

Pls decrease ur pressure first , go to washroom then explain us

[@nsmlhaque22haquehaque92]

hello sir I want to learn, please explain about Carrier guide vane installation and maintenance & calibration.

[@sabu.ssreenivasan2190]

good

[@gatisimonsena3910]

more information

[@TrapLabIslanders]

🙌🏾🙌🏾🙌🏾

[@tariqakhss]

Nice

[@EricStromquist]

Appreciate you checking the video out!! Please let me know if there are any subjects you would like us to make videos on in HVAC or Smart Bulding Controls

[@haiderkhan7465]

I will wait for your next video if my comment reaches u plz make a video soon

[@arun4846]

👍

[@KumarKumar-kc9qx]

thank u sir really nice explanation congrtullation

[@Chemoholic_Z]

#Chiller

[@ehcerosheatingandcoo]

nice video

[@mirzaahmedalibaig9273]

Pls in give inbriefly sir if you keep in other language

[@engineereells79]

This dude reminds me of the lawyer that got fired, on my cousin Vinny lol

[@henryplasencia8402]

Dear Sir I wrote to him to know if you can help me with an operation consultation or to indicate me to whom I write In the YORK centrifugal chiller of 490TR I got a pressure transducer alarm Why does this alarm arise? The solution is to change it? Can you fix this spare part? thank you very much for your help

[@VWGTI2013]

How much does a rookie stationary engineer make starting? I`m going back to school for an associates degree in facilities maintenance technology.

[@majordbag2]

As someone who has just graduated from a 2 year HVAC/R program a week ago this May, I can tell you what I know from my job offer, classmates' job offers, and what our instructor. Starting off, bare minimum is about $14 an hour, though location will have a big impact on that. Many of my classmates who got hired locally are starting at $14 an hour, with the few guys who made it into the union will be making about $20 an hour but we're in an more low cost part of the Midwest. I'm starting at $25 an hour but I'm willing to relocate to a high demand area where the cost of living is higher, i.e. taking count my income my starting wage is worth about $20 an hour where I currently live but to get the same standard of living in San Francisco I'd need to make $37 an hour. The other issue is experience. After looking up what stationary engineers do, it seems like they do a lot of the more industrial hvac work. In hvac, you can expect somewhat low wages for the first 3-5 years then a significant increase in salary after that and finding work will become much easier, as most jobs tend to require at least 2 years experience and a solid employment record. So stick with it and you'll find a good job eventually.

[@AKK105]

A very informative and useful video. Thanks a lot for sharing. Can you recommend a textbook for chiller maintenance and repairing?

[@Blessedstill]

U are a great teacher 👨‍🏫 👍🏽thank you!!!!

[@derrickceballos7240]

that's exactly the same drawing of the refrigeration cycle of a chiller that I learned on too. great explanation too.

[@EricStromquist]

Thanks Derrick, I appreciate you checking us out! Do you mainly work on chillers or do you get involved in HVAC controls too?

[@derrickceballos7240]

@@EricStromquist I have been a chiller technician for Carrier for 12 years now. I work on anything and everything. Controls, Trane, York Carrier, Daikin, Turbo Core, Roof top units, software. I'm still learning as I go, trying to stay as humble as I can in this trade. we know there is always something new to learn.

[@rajujohn8363]

​ @@derrickceballos7240

[@northface484]

Would you consider a groaning noise when the load is low a surge....

[@มนตรีกุสลากรกุล]

Why high pressure sw not cut off

[@Theweeze100]

Absolutely fantastic explanation. Thank you so much this is extremely helpful.

[@trekdiaries3540]

Backward flow only happen in centrifugal compressor I think n not in screw compressor, pls confirm?

[@TheChillerGuysHub]

Very good video man, thanks for doing what you do!

[@moazsalem3488]

You are wrong if what you say is correct then we can trip the compressor on high discharge pressure before surge occurs but surge occurs not due to high pressure but because of low flow rate in the suction.

[@philpbyein6140]

for water cooled chiller is a challenge time during high humidity . how can we manage the chiller to increase the header temp.

[@mohamedmasoud8949]

Thanks

[@Chemoholic_Z]

#Surge

[@phillipsierra2074]

why does he keep saying economizer? he means metering device.

[@marsolinantonio8966]

Thank you

[@mohammedaasri2774]

Thanks

[@بوفارسبونورا-ص7ه]

👏👏👏👏

[@warissirkhot5955]

Great sir...it was very helpful..

[@EricStromquist]

Glad it was useful! Thanks for checking it out. Quick question, I am trying to figure out how my controls disrtribution business can be more useful to the industry. What is your biggest challenge in business in 2019? What is the best thing a supplier has ever done to earn your loyalty? If you have a second to answer these questions it would be very hellpful. Thnaks.

[@24pipewrench]

The way you explain things probably really confuses people new to the industry. I would be pleased to provide an extensive list of incorrect terminology/phrasing used in the video if desired.

[@alirezaghafouri1321]

oooof im sorry bout is very booooooring