Working on a CHILLER I have NEVER seen before...HVAC Life

[@davidoneal4100]

Really refreshing to hear the honesty from a technician

[@realmadrid5981]

I admire and appreciate your honesty. I was told by my instructor and leads that it’s okay to not know something

[@topher8634]

Most chillers don't turn off. They "unload". Check your low water probe on the next visit. they have a tendency to becoming scaled up and stop sensing water.

[@joefrance6599]

Yep! They will "unload" constantly under light load. That is what the bypass is for.

[@nathanhurst5155]

Man I absolutely love watching videos of people working on things they’ve never ran across before. Awesome video dude 👍

[@brianjones7983]

Always remember the basics of refrigeration, break it down and figure out why and what each component is doing. You have the skills to troubleshoot it . Good job for going outside your comfort zone.

[@EverythingHVACR]

That alarm looks to be a water issue. That brazed plate heat exchanger has an air vent on top. You need water flow like you need air flow, start with the basics and they'll lead you to the problem most of the time. I like a good process chiller.

[@c_young-hvac4586]

I remember the first one of those I ever worked on . I stepped back and said th3 same thing you did . And the rest was history work on quite a few of them now mostly budzar

[@NROhvac]

Chillers are very basic once people see it that way. The problem could be a logic control problem, I’ve had it where the parameters on the controller were not synced with real time parameters, and was off by a good amount. Logic controller had a “freeze logic stat” and put a “low water” alarm out because of the improper parameters

[@EverythingHVACR]

@@NROhvac logic is only as good as the information you provide it.

[@NROhvac]

@@EverythingHVACR yes indeed! lol

[@EverythingHVACR]

@-QualityHVACR Anytime, I'm not hard to find, and I'm happy to chat.

[@FrenchBeefCDN]

Hey, a Technotrans! I am the designated Technotrans repair guy for our company since everyone thinks theyre impossible to work on (theyre not.) The one big issue is the copper is metric sizes which our local supply stores dont carry. 3/8" copper is very close to 10mm which is what they use for liquid lines. I show up and Technotrans has already shipped the parts they think it needs (Solenoid Kits, TXV, Compressor etc.) When we get a call I am just the technician who can safely recover, cut out, braze in, evacuate and charge. Cool to see.

[@thesilentonevictor]

Good to work outside the box Zack it's a learning curve

[@pedrojuarez5834]

it's always exciting to see your HVAC art

[@davidturney2975]

One issue I ran into recently on a Daiken chiller was a EXV that would stick closed and cause a low evap pressure fault. I chased water to confirm it was getting enough water and almost everything else before setting on the EXV

[@NROhvac]

Sounds like evaporator isn’t getting enough water, I would check to see for restrictions. Anything that could disrupt that chilled water supply and return will cause evaporator temp to drop, that’s what’s causing that alarm. Once you confirm everything on that side is good and it’s still being a problem, check the unit with your gauges and dive deeper from there but it should only be a water problem. I love your humility it is very inspiring keep up the good work 👊

[@NROhvac]

@QualityHAVCR scammer

[@BoilerMaker56]

I would’ve done exactly the same thing. Love getting my hands into something I’ve never done before and of course, getting a hold of the manufacturer will be a big help for you. Nice job.

[@UncleEarlHeatingAirCondition]

Thanks for sharing the experience..

[@richardthomas1743]

HEY! Good morning Zach!! And thumbs UP!!

[@Brad1237202]

Love your channel. Getting an education from every video. "Every day is a school day" in the HVAC trade.

[@zeph352]

I like what you do. I always emphasize to my students that they should never throw away the manuals, before proceeding with a repair or change, they should read the manufacturer's information, it is likely that something about that model and series has changed. We should never believe that we already know enough, every day there is something new to learn. I miss the days of repairing units of those capacities: commercial and industrial. excellent video.

[@jarredallen]

the loading, unloading heating and cooling is controlled by the leaving and entering chilled water. if either sensor is out of range or faulty it will load and unload compressor outside of its operating range or set point.

[@abhijeetchandra4657]

To simplify a chiller instead of maintaining air temp it’s water that’s the only difference 🙌🏼

[@andyberreondo5007]

Was there a strainer? Check your water side of things

[@elheffe7316]

Hey Zack, will you make a video on which shoes\boots you've used in the past and present when working in the field and why you chose them. thanks brother.

[@dgapp76]

Like any other equipment, they require regular maintenance. Like it was said before, check for scale as it can cause problems on the water side. It looked like your sight glass was clear and uncontaminated so I'd start by checking sensor resistance values and go from there.

[@monstahtron]

I service these all the time every time I go to a new one its always a challenge figuring them out and of coure half the documentation is usually in German

[@dylanwood7810]

I just started working on centrifugal chillers, damn things are massive

[@joshuatriplett8726]

You may have already done this but there should be a chilled water strainer in there. More than likely on the entering chilled water side of the heat exchanger. If you valve the water off and take it out you may find it dirty. Might have ink in it i have found that before. Hope you’re able to get it figured out 👍🏼

[@nhfdtb]

Those chillers are pretty simple to work on. I have several printing facilities I take care of. If the condenser is inside and the hot gas is cutting on and off it probably low in refrigerant. Is it bubbling in the sight glass? It is just like working on any other chiller.

[@Duey_diditGarage]

Awsome vid I stick to my level 2 boilers and chiller are like a foreign language to me just never had to deal with them

[@aaronburke2469]

Props to you for posting a video working on something you're not knowledgeable about yet.

[@zekenzy6486]

Great Video. Thank you for sharing

[@per995]

The manual should mention how to add water/glykol somewhere. I suppose this one has a reservoir on the higher side of the compartment with an access to refill water. It will always happen a little evaporation so may be that simple that it happened over time or even a small leak. The oil based circulators are another story without need for a refill. As you mentioned, those units mostly use a bypass valve and an all time running compressor.

[@per995]

@-QualityHVACR I should have mentioned that I always look forward to your videos. You are more calm than me, a good behavior😊Always nice and clean work from you! I worked with all kind of projects over many years and quite some chillers and heat systems. Mostly worked on cascade low temperature units of different types.

[@robalexander7348]

You done well Zac, may be another try with a Longer Manual Reset ? 👍 Au

[@CM-ou4zr]

Replace the water with air it will help you remember your basics. Low water=low airflow which could cause low evap temperature etc etc you know the drill

[@FranciscoHernandez-gt8ne]

2:47 Dude! I fel that😂

[@TravisGrantland]

In my experience with those systems, it’s the incoming water. Is it a pass through or recirc?

[@jarodreebel6686]

I love this video!

[@frankgall6]

I’ve worked on those. Pain in the ass

[@TheCurlyKid214]

Could it be the sensor that is needing replacement for this particular error? Since it isn't a constant problem.

[@vasiliy0704]

надо проверить расход воды, проверить фильтр грязевик. посмотреть давление

[@maness2112]

Check that water/glycol loop. Could be low.

[@warenmann1042]

Time to check/change the water filter...

[@1380Dane]

Thats a baby one we have some massive technotrans units ove here in uk horrible to work on

[@CommercialGasEngineerVideos]

Good job considering that you've never worked on them b4

[@jacobscyphers3630]

They're so cute at that age

[@cwevo316]

intermittent pump issues?

[@Lilflue.]

Them press chillers always need to be pm every month and and it was low on coolant

[@Lilflue.]

@QualityHAVCR got any questions just ask

[@asianking2240]

Hi bro ! Може9по подробнее показать какими инструментами пользуешься

[@everlastingdane]

Probably the reservoir water pump is failing

[@brianbrannanHVACTech]

Stick to heat pumps and promoting fieldpiece tools dawg and leave the chillers for the real techs 😂

[@familyofthenorth7593]

Slow time of year to be working on something like that. Risky