Bad Design Caused Chiller Oil Line Repair on York Air Cooled Chiller

York chiller failure was caused by the oil line cracking. The JCI York factory had a design flaw in the way they put these oil valves in. This is my opinion but given the temperature and stress this line endures I dont think their design was wise.
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[@scottymcneill6516]

I just blew up my G5 Twin, moving 200 lbs of R-11... I had emailed Appion and was told the unit "can Move ANY liquid efficiently". She is on her way to the factory, hopefully to be rebuilt.

[@jonnymac31]

Right on. I think you would benefit to ditch the screen in the G5 twin and use a filter dryer to help protect it. Sometimes it's hard to tell what's inside a recovery tank.

[@mikegolmon8375]

I have seen that happen before. The ones I have seen like that were caused by someone not using a backup wrench when removing the cap. Lots of times those caps are really tight.

[@jacobantonio3668]

Push pull is good for different applications. Really depends on the recovery machine you have. We have a big recovery machine that can only pump vapour so we will push pull with that but I use my appion often to just move liquid depending on the size of the chiller.

[@joecorbin5158]

The G 5 wrote the book on recovery… It planted the trees… Cut them down and made the paper that adding gas is written on…. Lol I use it exclusively anymore We also incorporate demo WSHP condensers for recovery. Once through with city water.. it goes Soo much faster. Be safe

[@richardharmon874]

Smart thinking on the leak checking. I do the same thing.such a big system you can leakcheck just fine with 15-20 psi. Great tip.

[@brianmillion-osborne6747]

I have the g5 twin. The machine is amazing I use it to recover liquid and vapour from chillers then I push pull the liquid back into the chiller when I recharge the it. Our recovery cylinders have two separate valves so we can push pull them. I find the push pull is a bit faster!

[@calex9398]

My boi back with another banger💥🤙

[@pmckeary3689]

Great video. I've been working on Yorks for a few years now and learned from a technician who worked for the OEM most of his career. He taught me exactly how you just did this video. My only disagreement with your process is the beginning of charging the chiller. I charge vapor until I get above freezing typically I like to get above 30psig before charging r134a liquid to avoid freezing and rupturing tubes in the barell. You obviously have done this enough times by your knowledge of fixing these machines so I'm curious you've never had an issue freezing tubes in the barell charging liquid right off the rip?

[@davidgomez1544]

Yes, I absolutely agree with charging with vapor first to 30 or 32 psi for 134a. I’m sure that he had flow when he charged.

[@OG_BillionaireMotivation]

As long as you have flow on your barrel weither its a water cooled condenser or even your evap loop. I’ve seen and heard story’s of techs doing that. Charging a 200 Ton Dunumbush chiller and causing hundreds of thousands of dollars in damages.

[@knowledgeunderstanding4192]

York has a part# for that tee. Or you can use a mueller receiver tee with a reducing coupling from 5/8 to 1/2 in.

[@thesilentonevictor]

Great video hvac time

[@chris66b55]

The CPS refrigerant pump moves a lot of refrigerant fast. It's great for charging. For recovery, you really need to use a de-superheater to cool the refrigerant. I like the G5 Twin because of its ability to help cool the refrigerant it's pumping. The G5 Twin is a workhorse of a machine.

[@FrostHVAC]

Subcoolers are a great investment ngl, ik some people who jus reuse a condenser coil from a small refer unit lol

[@chris66b55]

That works great too. A coil of 3/8" copper with 1/4" hose adapters brazed on works if you drop it into a 5 gallon bucket and fill it with ice and water.

[@robertwheeler8476]

Thanks for making me a dinosaur... We only had the option of push-pull... The one thing I found really good was a refrigeration drain heater tape. Wrapped it round the bottle and the refrigerant rushed out. Do recommend vapour charging to above 0 deg C. When liquid charging below zero, you can cause thermal shock on the tubes... Having said that though.... If it was friday, liquid all the way baby... Lastly, can you do a video on flooded, semi flooded and DX Chillers. By the way, I now do controls.. Easier lugging round a laptop rather than bottles

[@HVACTIME]

I agree with charging vapor first if your charging in the evaporator but when its just the liquid line and the liquid refrigerant cant get to the tubes I dont think its a problem.

[@richardbartlett6932]

the I would have tee'd the bottles and dump charged on top of the vacuum. then depending on amount you get in (how warm the bottles are, I stand them in hot water in cold weather) either pump or charge when running you can get 100kg in under ten minutes. let it settle run that bad boy up: job done

[@sterlingarcher46]

Holden i know I've already asked you about recovery and all that but I still don't get how you can be so fast at moving refrigerant. My company even have 1 Appion unit and I've tried it with 3/8 hoses mind you , and yet it wasn't that fast really . Although the guys who use it are pretty rough with it and they all remove the little mesh screen so it wouldn't surprise me if they messed up the recovery unit's inside components...

[@aedanwhyte6134]

Do you vapour charge till you are above 32 degrees saturation before you begin to liquid charge? Or do you just liquid charge and run the chilled water pumps ?

[@asherrard3]

How do you get those 200 ft3 nitrogen bottles on the roof? I’ve used 100 ft 1/4 hose when possible and stage the bottles as close as possible but getting them on the roof is almost impossible manually

[@HVACTIME]

Muscle and grit, and stairs lol

[@AliG-vv2rd]

Those reclaim rigs struggle with 410a vapour. Great with 134a liquid though.

[@gregoryclemen1870]

"YORK" equipment was good stuff before "JOHNSON CONTROLS" bought the company from "BORG- WARNER". the college that I worked at( now retired) had "TRANE" this equipment was good until "AMERICAN- STANDARD "bought out that company ( old equipment= good :new equipment = junk ), "YORK" ( old equipment= good: new equipment = junk) , "CARRIER" good. at the time, the college had 3 of that vintage style chiller, and leaks were common. the aluminum condensing coils would rupture, loosing the entire charge on that circuit ,and oil everywhere, you could not keep those "DOG PILES" running!!!! 2 of the 3 units did not make it out of "warranty" and "JOHNSON CONTROLS" did everything to wiggle out of the warranty claims!!!!. at least the "SCREW COMPRESSORS" held up. the york chillers that have multiple "SCROLL COMPRESSORS" per circuit is a disaster just waiting to happen!!!. the "SCROLL COMPRESSOR" was the #1 failing compressor on campus!!!! the "BEST COMPRESSOR" was the "SEMI- HERMETIC"= next to no failures. I did most of the chiller/ refrigeration work, including constant temperature boxes, and cascade type "U.L.T freezers" those units (with semi type compressor) run 24/7/ 365 for 30 years, they were running when I retired

[@samuelaranda4597]

I agree. I worked for York San Francisco area for years then we got called in the shop and we were told we got sold to JCI. We were all surprised at first. Why do we need JCI the company is doing well. They said they are incorporated their controls to our equipment so it’s going to be awesome. We thought it was good news. But they got too involved with YORK manufacture and the quality went down. JCI doesn’t want equipment to last long they want equipment to run and change outs. A chiller is a big difference to a customer then a controller. They didn’t get that it’s their way of doing business. I retired last year after 35 years of Union service.

[@gregoryclemen1870]

@@samuelaranda4597 , we were a union shop also( operating engineers) I really got pissed off at "YORK" when a twin circuit R-134A ( screw compressors on "VFD") chiller went off line due to a "C.P.U." failure. a new processor was ordered, and installed, however the co- worker made a big mistake by installing the "UV- EPROM" in backward, and blowing the chip out. so we ordered a new chip, and installed it , and "WALA" it would not start/ run. it started asking programming questions that I had no knowledge of. here we go again, call "YORK", and they told us that there is only one person in the company that knows how to program that chip, and he is on vacation, however we can give you an emergency start up programming sequence that will allow the chiller to operate for 24 hours, we are going to have to come in and do a re- programming of that chiller. it is amazing how they screw you over just to get a service call out of it, I do not like "SMOKE" being blown in my face!!!! johnson controls made YORK equipment too complex to work on, I am sure that is by design, unless you have the interface equipment to trouble shoot the "C.P.U." , you are "PISSING UP A ROPE" thanks for the reply, and have a great day!!!!

[@samuelaranda4597]

Yes. That’s the Johnson Control logic. We had our own customers and the engineers only like Teck they trust working on their campus. Johnson didn’t care. They didn’t even want the customer’s calling you for text support. They wanted the customer to call for a service call. Things were so nice back when you had your own customers that kept you busy. York. Dispatch loved it when I told them I got plenty of work to keep me busy. They didn’t have to find you work. I retired local 467 United Association refrigeration fitters. I’m enjoying my grandson and watching our twin son’s high School Baseball and getting invited to D1 schools for a visit. They want to go to Vanderbilt we’re visiting them in June

[@gregoryclemen1870]

@@samuelaranda4597 ,YUP!!!!!, being retired, I sure do not miss it. I will say one thing "CARRIER ALWAYS HAD GOOD TECH SUPPORT" the main chillers that were in the power plant= 1- 3000 ton york chiller that there was always something wrong with it( CONTROLS ISSUE), powered by a 3000 H.P. open motor, operating at 4,160 volts- 3 phase. 2- 6000 ton carrier chillers, powered by a 6000 H.P. open motor, operating at 13,200 volts- 3 phase. the carrier chillers never gave any real problems these chillers were running on R-22 ref. we were local 20 operating engineers union, we did the boiler work also," water tube "coal fired units. some of the out buildings had nat. gas" fire tube" boilers. I think you will back me up on this one " WHEN YOU KEEP IT SIMPLE AND STUPID" there is no problems ,like "RELAY LOGIC"!!!!!

[@chriscarlson5549]

How did you determine how much oil to put back n. By sight glass level or by manufacturers requirement

[@HVACTIME]

Sight glass

[@realestateservicessaleshea99]

Summer,Sun's out gun's out! Thanks again for the videos "SUPER-YORK "! 🍺🍺🍺🥃🥃⛳🎳 Stay safe. Retired (werk'n)keyboard super tech. Wear your safety glasses!

[@wd8557]

Question, do you treat your guys to lunch when waiting on things?

[@HVACTIME]

Sometimes

[@wd8557]

@@HVACTIME Back in the day's I had a great boss. He would take me out for lunch. It didn't matter where at. But I would tell the waitress let's say it was a hamburger, I go if it's a double does it cost more, she goes yes, I go make it a double. Then I would go I need appitesers. Oh! I have to take something home to my son? Then I would say he is my boss don't worrie about it. Tears would fall from his eyes laughing. He stopped showing up on job's. And if I really needed him he knew lunch was in play.

[@jimmyp5487]

How much refer does those big tanks hold? 😳

[@HVACTIME]

120lb

[@papaenojado92]

I have the same chiller, keeps tripping on low discharge superheat

[@HVACTIME]

Need to verify suction superheat, possibly bad suction sensor.

[@papaenojado92]

@@HVACTIME suction sensor it’s ok, transducer it’s ok. Oil & refrigerant charge both ok. Condenser coil was cleaned. Don’t know what to do now

[@GlenS123]

Push/Pull is faster if ports are available and configured properly.

[@HVACTIME]

How long would it take you using push/pull on 230lb?

[@GlenS123]

@@HVACTIME Big hundred # recovery tanks about 15 minutes. It would be a good video putting it to the test for yourself. Those are great reclaimers, have used them for years, use a dryer on inlet. If working on some mid-tonnage RTU's and ports not available for push/pull using it is the way to go like you did. Your making really good videos younger tech's can learn from.

[@gerardomedina2373]

Vibration is the main reason why it cracked you need a vibration eliminator to solve the problem

[@HVACTIME]

Not this one but usually yes. Broke while using valve on a maintenance.

[@karaors8970]

🇹🇷🤳✋🛠️👍🍻