HVACR Service Call: Walk In Refrigerator Refrigerant Leak Repair (How To Fix A Refrigerant Leak)
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- เผยแพร่เมื่อ 11 มี.ค. 2022
- HVACR ( Heating, Ventilation, Air Conditioning/Refrigeration) Commercial Refrigeration Training Videos/ Walk In Refrigerator Refrigerant Leak Repair Emergency Service Call (How To Fix A Refrigerant Leak For An AC/Refrigeration System) Refrigerant R134a Leak Repair For Walk In Refrigerator/Freezer/HVAC Training Videos/Online Air Conditioning/Refrigeration Training Course/Refrigeration Troubleshooting/Freon Leak Repair Step By Step/Brazing Copper Refrigerant Leak/Replacing Compressor Suction Service Valve/How To Bond Copper And Steel/How To Braze Copper To Steel/Connecting Copper To Steel
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Walk-in refrigerators and freezers are very large, insulated, enclosed spaces used to store and/or display refrigerated or frozen food or other perishable goods. They are used primarily in the food service and food sales industry.
A Walk-in cooler is basically a large scale refrigerator - similar to what you have at home - except you can walk into this one! Every restaurant and fast food chain has a Walk-in cooler and it’s where they store all their refrigerated foods. Unlike a residential refrigerator though, a Walk-in cooler has a lot stronger refrigeration system that allows them to keep their food stored at optimal temperatures in order to meet certain FDA standards and to ensure that it passes local safety and food handling codes.
Businesses from a wide variety of market segments use Walk-in coolers from Floral Boutiques to Breweries to Medical Research Facilities. Walk-in boxes come in all shapes and sizes and depending on the business’s needs, a Walk-in box can come with a lot of unique add-ons and accessories such as thermometers and temperature alarms that monitor temperature inside the box. If a business needs more than just a Walk-in Cooler, they can order a Walk-in Freezer or a Walk-in Combo Box which features to sections inside the box, one cooler and one freezer section.
Walk-ins are constructed using panels. Walk-in Box panels easily lock into place via cam lock and can be installed right over most flooring’s (though you can purchase a Walk-in Box floor separately).
A typical Walk-in Box can range anywhere from thousands of dollars to tens of thousands of dollars depending on many factors such as size, horsepower of Refrigeration unit, add-ons, panel thickness, location (indoor and outdoor) etc.
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Hi, Nice useful video for training. As an instructor and working in the field, Don’t worry about some of the criticism being received. If the Teflon gasket looks to be in decent shape, go with it and leave the extra gasket with the system. It is rare to see a system leak at the Roto-Lock gasket. Not installing a sight glass is a technicians choice. We have other methods like temperature, pressure, Subcooling and Superheat to ensure a proper charge. Not only that you can hear proper liquid head at the TXV. An experienced tech will get the charge correct. We deal with many emergencies and often don’t have a flare drier. Go with what you have. I would definitely go with a flare drier, If we are dealing with acid or water in the system and add a moisture indicator. I highly doubt these techs do everything by the book 100% of the time.
Thank you! I appreciate your comment very much. That's exactly what I did with the gasket. Left it as a spare. Exactly, a sight glass is just an accessory but it would have been nice. No big deal. I only stock sweat driers in my van and making use of what I have. They definitely don't do everything by the book 100% 😅 Appreciate the feedback.
Stay tuned for new videos every week⚡🔧
I'm designing software to help manage maintenance and this was extremely helpful to understand what you guys do, thanks!
Very interesting! My refrigerator stopped cooling, and I think it may be leaking refrigerant. This is very cool! no pun intended
Great job as always. Kudos for sorting out those nasty looking electrical wires. It's the small things 👍🏼
& thank you as always🙏 It's definitely the small things! Really not a fan of that lineset either. I'd love to update this unit and make it a work of art. Appreciate you dude ✌
Great job your the best men
Awesome as always Jumper Man! The descriptive videos with explanations are the best out there and should be used in classrooms. You truly are the master!
Personally I would have fitted a new liquid line sight glass as the system has a liquid receiver, and left as flare connections, makes future jobs a lot faster. I have not seen those flux coated rods here in Australia, usually I use a 45% rod and pre flux coat the joint.
I hear you with the sight glass. It would have been a nice feature but it's just an accessory. Doesn't take much to sweat in a new drier. That was my first time seeing and using that Flux coated rod. Flux and 45% is the way to go. This rod was at 56%. Had no issues. Pretty awesome
We use the Pre-coated ones in switzerland for small dimensions. As soon as i go up to 28mm or even 35mm ( 1 1/8 or 1 3/8 ) i personally prefer the pre-flux and blank rod method
Thank you from Barcelona Spain dude!
Good stuff! I really appreciate your work.
Thank you! I really appreciate you watching & commenting 🙏
Putting stuff like this on the internet invites praise and constructive criticism. You fixed the leak, installed a new drier and got it working so that's good...but....you should have fitted a sightglass, you should have used the new O ring, you should put fridge oil on flare connections, you could have pumped it down intead of pissing about with the recovery machine, subcooling is a meaningless measurement on systems with a receiver, your temp clamp on the suction line was right next to the compressor and if you sand the pipe work before you cut it, it's easier. Flared or brazed driers/sight glasses/solenoid valves/txv's is an ongoing debate, flares leak brazed joints don't, but flares are 'easier' to change....pro's and con's either way
Very nice , neat looking job ... Thx for posting ...
Thank you Eddy! It was a nice job to do. First time using those Flux coated 56% silver brazing rods. Stay tuned for new videos every week⚡🔧
Really like the 15% silver rod, capillary effect is so much better than 5% and 10%. Feels like youre brazing on easy mode!
That 15% is my go to! Just sleep better at night knowing 😂😂😂 Thanks for watching & Stay tuned for new videos every week⚡🔧
Very nice tutorial about refrigerator water cooler i thankfull to you sir because my job also is ref and aircon technician. I love this job. 😀
Thank you very much! I'm glad you enjoy these videos and love your job. Stay tuned for new videos every week⚡🔧
phew! wicked work🤙🏼🤙🏼🤙🏼🤘🏼👌🏼
Thank you! Appreciate the feedback🙏Stay tuned for new videos every week⚡🔧
Great work
Thank you! Stay tuned for new videos every week⚡🔧
Nice
"That is a beautiful thing."
😂😂😂 Thank you! 🙏🔧⚡️
I would’ve just kept the flares. Like Chris from hvacr videos say “ next time you do a repair you wouldn’t have to use the torches” I like using flares whenever I can. Less crap to take inside.
Anytime you replace the rotor lock valve, you replace the gasket that came with it.
You ALWAYS install a slight glass as well. You need to insure you have a full collom of liquid to the txv
no YOU dont HAVE to replace the gasket at all inspect it make sure its smooth if not than you toss it out.. a SIGHT** glass ya he screwed that up not even sure why he recovered the gas anyways
@@primetime758 they put a new gasket in the bag with the the valve. That’s the same thing as changing your oil filter and using the old o ring. Sure it might work, but why do it. The system is already open. What’s 2 more minutes
@@Justintime631 They put it there for emergency cases you dont have to change that gasket .. i know what comes in the box thanks...
@@primetime758 👌🏻
@@Justintime631 do you always follow the rule book ....
Interesting and helpful video. Great job JMT
Thank you! Glad you found this video helpful 🙏 Stay tuned for new videos every week⚡🔧
Do you think Fieldpiece wireless probes better than testo wireless probes?
How come you recovered the refrigerant as a liquid?(seen you were hooked up to ur liquid port on recovery tank) and not a vapor?
Great video liked your Brazing on the suction line, but I still wish u put the sight glass
Thank you Kenneth🙏 I hear you with the sight glass! Would have been a nice feature💯 Stay tuned for new videos every week⚡🔧
Also are you using Nitrogen while you braze
Come learn uncle. Greetings success always and greetings to know each other 1 profession
I would have gotten a site glass. I haven't used that flux rod. How did you like it? Nice job.
I hear you with the sight glass. It was my first time using a Flux coated rod and silver content that high at 56%. Def something to get used to but I'm glad with the results 💯 Thank you! Stay tuned for new videos every week⚡🔧
👍🇺🇸💪❄ great vid. Any need for leak sealant on threads b4 connecting service valve to Compressor ? N did u have to change the oil since it was r12 n u put in 134a ?
Thank you dude 🙏 No need for leak sealant on the threads because there's a gasket inside that does the job for you well. If you want to though, I'd recommend NYLOG BLUE💯 I can see this unit is old but the compressor had been changed and it had 134a already in it so I didn't change any oil. Thanks for watching & Stay tuned for new videos every week⚡🔧
what kind of torch is this?
No micron gauge ?
Any reason why you took out the sight glass? Is there not a receiver on that system?
Didn't have a sight glass and there is a receiver on the system. A sight glass is just an accessory. It would have been nice to have but that system is working just fine. Having the right tools can confirm that👌 Thanks for watching & Stay tuned for new videos every week⚡🔧
I’m thinking: those electrical wires gotta be addressed.
JMT: I gotta address that electrical junction.
💪🏼🤙🏼
?: Can you explain brazing vs soldering in your applications? I watch as a DIYer (all things). Grazie!
Great minds think alike hahaha I had to handle that wire situation lol Its the little things. I actually made a video on how to braze and another on how to solder. I explain them there well and you will see the process is different but for short as far as applications, brazing is for piping containing refrigerant as it is considered a gas tight joint as solder is not. You'd use solder on pipes such as a water line or air. Sometimes it comes down to your preference as well. Hope it helps. Thanks for watching & stay tuned for new videos every week! 🔧⚡
How To Braze Copper Pipe
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How to Solder Copper Pipe
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@@JumpermanTech gotcha, bro! Makes sense. I’ll be sure to watch those vids. Thanks.
How’s the motorcycle?
I used to ride a GSXR 750. Loved that bike. And I’m still around to talk about it 😎
Too risky now with so many numb nuts on the roads. Plus terrible asphalt conditions. Where the municipal taxes go??….
Just wondering, what size cfm vacuum pump is that?
7 CFM. Thanks for watching & Stay tuned for new videos every week⚡🔧
How do you know how much refrigerant is needed to charge the system
Good job
but when you change rotalock valve you must change gasket!
second why you don measure how much refrigerant you charge?
Min 7:50
What does "dump the nitro" mean?
Rookie tech here! Why did you recharge through the highside/liquid ? Im only asking because I've seen other techs recharge through the low side/vapor. Great Video btw!
you charge liquid through the high side when the system is on standby. Just imagine putting fully liquid refrigerant in the suction Line and then starting up the compressor. you could blow up the whole Compressor or cylinders inside.
Greetings from Switzerland :)
Godo Job
Thank you! Stay tuned for new videos every week⚡🔧
your charge hoses don’t hold vacuum.
Do you run nitrogen while brazing with that type of brazing rod. I would be afraid of the flux getting inside of the system causing contamination. It looked like it worked well; first time I have seen that type of brazing rod used for steel to copper for HVACR work. It looks more like something the auto body trades would use. Is it possible to braze steel to steel tubing with that rod.
Do you guys still see many watercooled condensers these days?
Here in New York City, most definitely. Thanks for watching & Stay tuned for new videos every week⚡🔧
Wow first time using 56% Flux rods and already an instructor? I've been building these rooms since 93 I'm building a 12x10x8 freezer right now. Did you tighten that 2 edged nut on the stem? Usually some lock tight leak block on the stem cap will suffice . Don't directly touch anything with your leak detector it'll always beep. I would have replaced the filter dryer with another flared one and kept the sight glass. Good luck kid .
First time with the 56% Flux coated rod. Been in HVACR since 2011. Wow 93, that's awesome. Respect to you Roland. Lock tight on the cap mightov done it but I rather do the right thing. You're right about the electronic lean detector but I make sure I don't bump it. Not a fan of flared connections. I sleep better at night with brazed connections haha thanks for watching & commenting! Stay tuned for new videos every week⚡🔧
I don't see the link to the video for adjusting the water something-or-other.
Oh boy, another one egh? Leaving a link below!
Water regulating valve adjustment
th-cam.com/video/ZX1tPSj_VkU/w-d-xo.html
Stay tuned for new videos every week🔧⚡️
@@JumpermanTech
It happens all the time.
It's all over TH-cam.
I don't know what it is ????...
"Link in the description below"... and 2 out of 3 times it's not there.
Use R12 alternative if it is a R12 compressor. R134a should be used in polyester compressor.
This was an old unit but the compressor was replaced. There was already 134a in it according to the engineer in the facility so I just went with what's there. I hear you with that! Appreciate the feedback & Stay tuned for new videos every week⚡🔧
I heard you said you charged R134a into a R12 compressor. That’s why I brought it up. Use R134a If replaced compressor came with polyester oil. Use R12 or R12 alternative if replaced compressor still came with alkylbenzene oil. Whoever replaced the compressor should honor the rule. Pump down the refrigerant to liquid receiver will make rotalock valve replacement much easier. Actually it is not necessary to change rotalock valve if it is only a minor leak from valve stem packing. Retighten brass packing will stop leak. Apply blue leak lock sealing compound over the thread and joint of brass packing even better. Nice talk to you. It is a pleasure.
Do you need a refrigeration licence or just get practical training
To work with a system containing refrigerant you need a license. You need your EPA Section 608 Universal license. Thanks for watching & stay tuned for new videos every week! 🔧⚡️
To take that exam, you need a letter of recommendation from your school or employer. Atleast for New York, that's how it works. Good luck!
Bora I m (AC)
sand your tube befor cuttin -- tourch up no fess no mess
Aaah man, no sight glass? :( :(
No more sorry 😅 Thanks for watching! Stay tuned for new videos every week⚡🔧
to weld to a roto lock you need the 45% silver to weld to the steel, taking out the sight glass is a rookie mistake, it is there to indicate when the system is fully charged, if he worked for me i would have fired him for not reinstalling the sight glass, also he did not have to replace the roto lock just the gasket
I used a 56% Flux coated rod. A sight glass is an accessory. Good thing I work for myself so nobody can fire me. Thanks for watching 🔧
@@JumpermanTech idiot, the sight glass is not an accessory, it is required to ensure the txv has a steady stream of liquid going to it, otherwise you may have evaporator coil freeze up, 40 years of experience tells me this is a fact
When I was young I worked at CN (Canadian national railway ) for 3 years. They'd fire us if we opened the system without replacing the oil in the compressor. I've never dumped so much clear oil in my life. Also I've never seen so much contamination either the compressors seizing up and starting a fire from the straps. The kids would get air in the system and the oil would foam up thick like pudding.
@@rolandgirouard5914 sounds like it was a r22 system with 404a or 134a added without a oil change, mineral oil will foam with the “A” type Freon in the system, you can drain the compressor and change the oil if it has not locked up yet
@@williamfowler9882 actually it was the late 90's and we were converting from 502 to 404.
жить или умереть ! ))))
Da! Privet! Thank you for watching! 🔧⚡
Why don't you pump the system down it's got a receiver tank you don't need to reclaim the refrigerant leaks on the suction side you could have saved them a lot of time and money use your brain
12°f superheat going to flood compressor back my brother
Normally want to be 6 inches away from compressor to get true compressor superheat reading and get 20°f lowest compressor superheat to 30°f anything lower or higher could potentially lead to compressor failure.. big fan of your videos though 🦾🙌🙏🤙😎