WALK IN COOLER INSTALL
HTML-код
- Опубликовано: 21 окт 2024
- SPORLAN BQ TEV KIT GIVEAWAY CLINK THE LINK BELOW
kingsumo.com/g...
This was a walk in cooler equipment replacement nothing too crazy about it but I shared some really good tips on TEV's and properly sizing liquid line solenoid valves.
For Optimizing my videos I use Tube Buddy
www.tubebuddy....
Please consider subscribing to my channel and turning on the notification bell by clicking this link goo.gl/H4Nvob
To support my channel please visit my patreon page here / hvacrvideos
Social Media
Facebook / hvacr-videos. .
Instagram / hvacrvideos
For any inquiries please contact me at hvacrvideos@gmail.com
So glad to see oxygen and acetylene with a micro tip in your brazing. I can’t tell you how much I cringe when I see turbo torches. The heat just transfers way too much and cooks surrounding components. Keep up the good work so glad to see a professional on your skill level giving great advice.
I don't even do low temp, and I can't stop watching your videos. You do a very clean job, and extremely knowledgeable.
Thanks so much
I can tell that you really take pride in your work,it shows. Awesome walk in install, man! Refrigeration looks like fun to me. I wish I could get a job in that field, I'm a residential hvac tech but would love to get into refer work. You and Norcal both are great at what you do!
Had a reply
Back in the 80's, I installed a lot of these walk-in coolers and freezers. The evaporators only came with one nozzle in those days. It was R-12 for the coolers and R-502 for the freezers. Today, I would probably use Stay-Brite 8 soft solder instead of brazing but in the 80's we always used 15% silver brazing stick. The only time we used Nitrogen is when it was included in the specification. I wish we had Nyloq when I was in working in HVACR. I bought some when I installed my new A/C and I love that stuff. I see that the quality control is still mostly nonexistent in refrigeration equipment. We used to get brand new compressor racks and all of the piping was leaking and was not pressure tested. We would have to re-pipe everything before we installed the racks.
Nitrogen IS used as an inert gas, but the term "inert" in this case doesn't have ANYTHING to do with temperature and pressure. An inert gas is a gas that does not undergo CHEMICAL reactions under a set of given conditions. like how when you burn Hydrogen in an Oxygen environment - you get water, a chemical byproduct. Not to be confused with Noble gasses either. Nitrogen is used in you braising because it is CHEMICALLY inert in your application, and won't react with your solder, flux, copper, or torch byproducts. And it may not even be pure nitrogen, there are compound gasses that are chemically inert. The people who believe a gas in a closed system doesn't respond to temperature by changing pressure are just wrong flat out, whether the gas is chemically inert or not :)
PV = nRT you can't avoid physical laws :)
And while nitrogen is enough for brazing, you can't use it in arc welding because at that kind of temperature it WILL react with iron, messing up the welds. You need Argon, which is a true noble gas and will not react with iron.
@@Zonkotron and I am still unsure why argon is not used for this type of thing...... nitrogen stops the reaction inside the braze but argon would too and is used for almost every wire-feed welding system I've seen (not counting flux-core wire) so why nitrogen instead for refrigeration?
@@jojomorgan8556 Nitrogen is cheap. The cheapest technical gas there is. Nitrogen and Argon are both drawn from the air by Linde Cycle Plants and there is like 60+ times as much Nitrogen as there is Argon per unit of Air. If you are not heating stuff above a yellow (glowing) heat, it is perfectly sufficient
Heat craft should replace the expansion valve if it goes bad because they didn't flow nitrogen
That was nice that you had the opposite side of the box from the old evaporator coils to hang the new evaps. It made the install not pressed by any down time issues for the product in the box. Also, good move on your part to not want the hot air from the door opening to feed directly into the return air on the new evaps. Installing the new ones on the opposite side of the box makes it so the warm air entering from the doorway has to mix with the box air before reaching the return air side of the evaporators. That will help your Delta T split readings alot. Anyway, as always, good work!
Ok, you deserve all the kudos you can get for you video's, but there is a unnamed hero here as well, the one holding the camera when you are soldering is doing a damn good job keeping "us" all in on what is happening :D
I have found that sanding the tvx fittings in fact any valve fittings heat up faster reducing time spent brazing which in turn reduces the chance of overheating ur valves. I have done dozens of supermarket installs and this technique reduces brazing time alot
Greats from Hamburg, Germany. Love your vids mate! The detail that you put in your work is masterclass. Keep up!
9:02 You should send this video to Heat Craft. During the shipment the debris can be anywhere inside of the coil. Likely you see the debris. If all debris goes inside of the coil, and after you have everything set up, and turn out somewhere is clogged, you have to no idea why it is clogged. It will be very frustrating in the field!
Great Job Chris,
The manufactures should be aware of there QSC dept. for sending out a unit like that. Great video Chris!
Thank you,
Ray Shepherd
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
When I took a refrigeration course they taught us brazing. Working with my then instructor he uses the same solder that plumbers use. After doing hundreds of joints without failure or leaks... I am sold. LOTS less heat... inside the lines are MUCH cleaner after.
I have nothing to do with this kind of work, yet I find this super interesting. Good job to you for making it kinda fun to watxh
Thanks bud!
I made sure all my techs had this kit greatest.
60' is one flat on the valve, I usually put some permanent marker lines one the body and power element so I can see when its turned the right amount.
Yeah I'm bad in that I just can feel it and know when it's right, same with flares. So when I'm making a video and trying to teach I sometimes forget and just do what I know is right vs actually setting an example
I'm sure you don't need any advice from me! just thought it might be ahelpful idea to anyone reading the comments.
Don't see many sporlan valves here, maybe get to work on one once or twice a year. @@HVACRVIDEOS
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
I think it's funny you have to have fire sprinklers in a walk in cooler and/or freezer. I even talked with the guy who comes in and inspects our fire suppression equipment at work and he says the same thing.
Thanks for the videos, I'm switching HVAC paths from doing PMs on boilers and chillers and package units to doing low temp refrigeration. Thanks 😊
i really enjoy these video's where you do the work in front of the cam! keep it up
I have started flushing the evaps with RX11 before I braze in anything. Full of junk from factory assembly.
Great video brother 👍
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
Very clean install and like the vavle assembly. Like the comparison of the 2 wet rag, it give people a heads up on their preference. Thank you for showing. HVAC ON!!
Just a heads up, you dont always have to come back the next day to set superheat, just measure the evap td (on coil temp minus saturation), and set superheat at the evaporator to 60 percent of that.
True be told, whose to say Heatcraft doesn't use nitrogen, one, to save money, two, to insure a constant supply need foe their units?? Great job by the way man, you teach the proper techniques.
Nice install, but rather have 2 x separate systems on a 60/60 ratio incase one system packs up the other will continue to run the cold room until it is repaired. Just a thought.... also depends on customers budget...👍
Doing refer.. valves... PLEASE guys... use the g Body so you can check the screen, #1 thing on a valve.. do u have a solid column to the valve,.. Good video, keep the refrig guys informed..
What kind of walk-In Box Is this? A Freezer or Fridge? Does the nozzles goes on both ?
So, you liking R448A? What's the word on it? I work in AZ.
Nitrogen is an inert gas. What changes pressure in the system is the the air molecules in system the larger the pressure change the the more air you have in the system. Thats why in some system change outs you have to keep lines closed so your nitro test doesnt have to much pressure change and vaccuum takes less time
شكرا لك على كل ما تقدمه وانا من اشد المعجبين بالأعمال التي تقدمها وتعلمت الكثير من متابعتي لك شكرا
شكرا جزيلا على مجاملة لطيفة وشكرا لمشاهدة!
Teanslate that
Just copy and paste it into Google translate....
HVACR VIDEOS - it won’t work on mobile
Great video Chris! Thank you for trying R448A.
We are using R- 448a in South Carolina for supermarket retrofits, it's working great
Not sure why heat craft wouldn't just use staybrite #8 to cap those lines? That would eliminate the use of nitrogen and the chance of copper oxide forming.
Looks like a pretty chill job
Thanks for watching I will be going live on RUclips this evening 4/1/19 @ 5:PM (west coast) to discuss my most recent uploads announce the Sporlan Bq TEV kit winner and answer questions come on over if you can ruclips.net/video/WLQxwzT65SU/видео.html
How do you pick which refrigerant you are going to use? Why do they have so many kinds?
The squeeling from the door made my dog bark. And I'm wearing headphones.
You are very professional!Keep that way!
That kit looks like it would come in handy on the weekend...I usually get pre-built coils for projects like this
O.o
Nice job. Would you ever consider adding a tee on the liquid line between the solenoid valve and expansion valve to pipe that evaporator master and the other becomes a slave. Change solenoid valve to overall system size so you only have one solenoid. Easier troubleshooting if valve problem.
I found some shraeder core seals melting in the threads of the access port when they braze the ends on the evaporators, becareful to check the cores before you braze the evaporator in permanently, pain in the ass getting the seal out.
Nice job
It's becoming more common to see multiple evaporators on one compressor, like cold zone package systems. How do they get away putting multiple pan chillers on one compressor if say only one pan chiller is calling. High superheat and high subcooling is common bc your capacity can be way oversized with only one calling. Thoughts?
I will answer your question on my stream tonight if you can come over and check it out ruclips.net/video/Bqx-RSJsidY/видео.html
I call that system a multiplex compressor killer. It's very common to see this on a Kairak system and we usually have to replace the compressor every 2 to 3 years.
How long was the line set when u pulled a vacuum ?
And also when did they pass the law in Cali in regards to 404a ?
And has it been band as well ?
What’s the replacement for it ?
Thanks for this video.Great job.just a few questions, Normaly a TXv is fitted with the power element facing upwards, is a position like the one u do okay? And the sensing bulb on the suction line what degree would it be.Thanks
Uhm, I believe you brazed in the TXV incorrectly the nozzle should not be aimed upwards / Every manual in the TXV kits Ive seen said to either have level or aim down not up. Can you please explain? huge fan of your video,. very helpful. Thanks
there is a clear heat barrier gel we use for panel welding in the automotive world. might work good for your industry too. easy clean up just hit it with water.
i dont instal the nozzle, it dont make sense, my customers have old equipment and old evap, i have head few times where i see low flowing of refrigerant after the txv and some of the tubing from the distributer are partially restricted , i found it working better without the Schnozzel
thank you for great video 🙂✅
Awesome video Chris. That sucks you can't count on the factory. Thanks for the tip.
Just for reference on 60* rotation, just look at the hex on the bottom and mentally note or mark where one of the points line up and go one full point.
Wow you actually get time to change oil on the vac, I need to work for a different company that actually wants to do to jobs right, I work on transport refrigeration we never get time to do anything right.
Yeah we try to do it right.....
Car refrigeration is nice though. Just hook up the automated equipment, punch in the charge, the oil amount, and if you want any UV tracer, hit start, and it will do the job for you and only beep at you if something fails or if you need to do something.
I wonder if this equipment would be suitable for R32?
Hi Chris,
I like all your videos,, please please send the crap you found in the evap to the manufacture, because they keep blaming us ( all tech ) for braizing without nitrogen flow.
Thanks for all videos.
Please keep them coming.
Do you Braise because a conventional Solder Joint wouldn't be strong enough or it would contaminate the Refrigerant?
Would it be better to use a triangle file to cut open the distributor cap instead of a tubing cutter (similar to cutting a capillary tube style metering device) or have you found that doing so is an unnecessary venture?
You dont have to use a heater on that drain line?
Such a pain installing txv and solenoid in these, latest installs have had factory installed electronic expansion valves and pcb controls. Holy cow are they a smoother install. No onsite assembly, no external controls or time clock, all inside ready to go.
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
Copper sulphate is blue.
Do these evaporators have ECM fans in them?
I have that same vacuum pump!!!
It kicks ass!!
Yes it does
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
Another awesome vid. I juice up my wet rag with heat gel. Keeps it from drying out during brazing ;)
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
You’re saying they didn’t braze with nitrogen but when you brazed the valve in did you use nitrogen
He did you can see the yellow line
Nice introduction for the wet rags. I was hesitating to buy or not, now that i’ve seen it, my answer is a big no.One thing I noticed in your suction piping, in a one to two installation, why are there no P and end traps in your risers?
Thank you. I really enjoyed watching the new installation thank you God bless you for your teaching
Whats the dinosaur behind the blue box.... Mines like 18 years earlier... still works
Thanks for showing that hot block. Think I’m gonna stick with regular wet rags, that cleanup looks like the last thing I want when I’m busy.
What was going on with that suction line insulation on the roof? Why did you have to resort to that?
Thanks for sharing your knowledge, greetings from Scranton PA
Thanks for watching and taking the time to leave a comment!!
My local Sams Club has 2 new Seasonal Walk in Dairy and Produce Coolers, + Fresh & Deli Island.
Why put solenoid valves in each evaporator coil? VS putting one in the common liquid line.
Great video. Just curious if you've ran into evap fans not cycling on untill it reaches a certain temp in the box. What two. Connections do I jump to bypass untill the box reaches a colder temp?
Your defrost termination has 3 wires red , black and brown. Black is your fans red is common you can simply tie red and black together and that will turn your fans on before the coil gets cold.
You should look into getting a noga deburr tool NG1003 for deburring the cut tube. Just be careful to deburr with the pipe facing down to keep the chips out.
Was thinking the same thing. First became aware of the Noga from watching Adam Booth’s channel.
What a nice new Field Peace
So is the nozzle the expansion device then and the txv is just metering? And, I'm guessing the point of all that is more equal distribution to the circuits?
I had not seen this video where you are changing two evaporators in a cold room, the truth was I found it interesting to put new equipment I have always liked but I observed one detail and that is that you made the interconnection for the two evaporators in the suction pipe instead of putting one yee you put a tee, and the truth the tee in that connection usually produces a coefficient of friction too high because two pressures collide perpendicularly and I think you also did not install oil trap in the suction line of each evaporator are details that are tuned over time is my humble observation
Yurr cant wait for monday for the live stream
Wish i can be your apprentice too id learn a lot for sure!
So if they cover those units on the roof by puting them under sahde... would it have any effect on their efficiency ?
I would install a P trap on top of the box too. Most of the time I would bend the line set into a p trap. Love your vids keep em coming bud n stay safe.💪🏿🙏
How do you charge system ? Does it tell you how many pounds you have to put?
Do you have to change the oil in the vacuum pump several times during the pulldown?
It just depends on how contaminated the system is, each job is different.
Why are you using a separate micron gauge? Isn't it built in ? I have the testo 557 and I'm looking to upgrade to something also with a manifold. Is it not accurate enough for you ?
I wouldn’t trust the manifold gauge set to do the vacuum.
I am a learner here but what if i just use the Danfoss T2 or TE2 TXV
I like the way you explaining ..👍👍keep up man.great job..
At the very beginning what’s that tall glass tool at the very right behind the sporlan box?
2:47 the person who did the arrows just ain't right.
Can you please do a demonstration on a unit with mismatched components, evaporater to condensing unit under sized/oversized, I find them difficult to not only diagnose because how would you know first of all, I have a good idea but that normally takes hours to figure out
Or a better way ya to cross reference units
I have added refrigerant to circuits with way to big condensing units to evaporators not knowing that the evap was way to small for the actual unit itself, high head low suction just to find out it was mismatched
These are only 18k btu together ?? I didn't know walk in coolers use such little btus.
Nice work Chris.
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
I love this it makes me want to be a better technician and every way
Thanks for the awesome videos!
Quick question, how long do those brazing tanks last you?
Everyday usage probably 3 or 4 days
Nice neat install Chris ... Appreciate the vid's ...
Thanks
Great job! I wish you'd show us the sight glass
Nice soldering
Not a fan of that hot block crap 💩 Chris . I use the cooling Gel that comes in a spray bottle . Works bad ass , and no mess whatsoever. Great video ....
All gasses expand with higher temperature and vise versa argon moves decently with temp
Isn't two units overkill for a chiller? More of a square footprint at my work has one that easily chills down to 2 degrees C
gr8 stuff Chris keep em vids coming brotha
Thanks for watching, I will be going live this evening 3/25/19 @5:PM (pacific time) on RUclips to discuss my most recent uploads come on over and check it out if you can... ruclips.net/video/Bqx-RSJsidY/видео.html
where is the link I can order solenoid and a TXV for a walk in cooler.? Thanks
Awesome video bro. Great job
I‘m really kinda dumbfolded that you guys in the US still work on R22 and build new units with 404A. R22 has been outlawed in the EU since 2015 and R404A will be in a couple of years with it being very expensive already.
No flux required when brazing? Never brazed anything.
This dudes taking his vacuum very, very seriously lol.
Nice job brotha! What is the purpose of the suction line trap behind the coil? I do not see it all the time
It is there to help any oil in the evaporator coil to return back to the compressor.
You only need a trap if your compressor is sitting higher than your evap coil. Basically if it’s on a rooftop vs on the ground
Like the video covered a lot of ground there.
I tried to cram it all in, Thanks for watching!
Vacuum oil 🤔🤔 why change it?
Good job like always but why have solenoid valve in both evaporator ?
Jose Martinez id like to know the same.... I think I saw two separate thermostats which must mean the evaporator coils can run independently
Maybe he just parralelled the selinoids....I pushed rewind did NOT see second climate control....
So I used two solenoids and one control, I find it easier to run wire instead of a tee and a liquid line from one coil to the other. On a box this small separate stats for each coil would be a problem.
HVACR VIDEOS makes perfect sense....thanks for the reply..you're the shit bro...👍👍
@@HVACRVIDEOS thanks for replay this is first time I have some doubt with you work .
Really did enjoy the video, had only one thought during your braze. Remove the plastic gloves my friend before you make a mistake and melt the plastic to your skin, have seen the result to that mistake put a tech out of service for a half month when his torch hit the glove he was wearing. Otherwise first rate video.