Reach In Cooler Capillary Tube Restriction
ฝัง
- เผยแพร่เมื่อ 16 ธ.ค. 2019
- A quick video that shows what a capillary tube restriction looks like and how to verify that its restricted and not just low on refrigerant. See part 2 for the repair.
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This is a real short video of how I decided if the cooler has a restricted capillary tube or if its just low on refrigerant. Check it out and give me some feedback. Thanks for checking it out and please consider subscribing and clicking the notification bell.
UPDATE: I have the repair recorded and I will soon be posting it.
thanks for sharing , always learning something new from you .
That is great to hear! Every little bit helps, thanks for watching!
Nice diagnosis. Systems been worked on obviously. At least you have service ports which helps. This is a good video for guys so they dont confuse this symptom as low charge.
I have ports because I added them last trip. They didn't prior. Thanks for the feedback Phil!
I appreciate the video. We see quite a few of these.
It's definitely not something I like to see 🤦♂️. Thanks 4 the feedback👍👍
My Testo 550 do the Same exact thing very annoying...... Great video as always TY
Total Chinese junk, I emailed them how disappointed I was in the quality and how I don't think I was quoted a fare price for a control board for the 557s. All I got was crickets.... not dang thing back from them.
thank you for up loading.
Thanks for the explanations. Really appreciate these True equipment vids as we have over 50 units at my facility of various types.
Hope to see follow up of retro cap tube replacement and your thoughts on Supco 88 or other additive if compressor will not be replaced.
I will try to get it. 👍👍
Ive been using my stubbys and appion ball valves. I rarely bust out the manifold set. I want the fieldpiece probes!
The Fieldpiece probes are great!
Thays why I like my SMAN 460s. Want to get the job links though... Always enjoy the vids!
I like my fieldpiece probes 👍👍The fieldpiece manifold is a lot bigger than I care for but at least fieldpiece isn't a stickler on warranty. Testo wants $200 for the control board and $25 to install it. Hell, I might as well by a new set. Plus my one temp probe is about ready to go out and that's $52.
thank you for showing how thing really are excellenttttt video
One of the fastest videos I think I made. How did you like the voice over? It wasn't rehearsed or anything like that, plus the sound quality wasn't as good as what I can make it but it was one of my first attempts to try and do the work and then come back later and vocally explain what I did ?
I just paid attention what u did on video not your voice thanks again
@@semihsonmez3014 that's cool, it helps me know what's working with my viewers
Am so happy seeing this cause I work on Pepsi coolers all day everyday
Lwanga John I’m a former pepsi tech. I enjoy seeing them too.
For the most part they're just a True cooler, the poor things never get maintained generally from what I see.
Guilty...
@@PedersonPantry it happens🤣😁😎
Very nice video! Keep them coming! How long is the cap tube?
I think it was 12'
Engels get this too, common with a very fine capillary
thanks
Thanks 4 watching 👍👍
Great videos. Question. Why use automotive grade r134? I know it’s cheaper but is it true that it is not as refined as refrig. Grade 134?
We buy so much refrigerant that we buy it wherever we can get it the cheapest. Far as I know they all have to be a certain standard if purity otherwise you're possibly contaminating other systems and if that was the case, that would go against EPA regulations.
I use a 557 at work , that's provided by the company , and the bloody LP side won't reset to zero , nor will it zero out the pressures when I press the " P=0 " key .
I pulled a vacuum on it and it reset to zero , I thought problem solved , but then I used them again and the issue remains.
This is why I love analogue old school gauges !
The 557 was a good set. But my 550s are total Chinese junk. I emailed them and got no response. 🤷♂️ I guess they don't care about their equipment being showed in a positive light on my channel.
@@HVACRSurvival I guess the dude in charge of customer service is a bit of a wa**er , sometimes all it takes is one bloody idiot to ruin a whole company.
You should try emailing the German headquarters, hopefully they might have someone with a bit of sense that will listen ...
@@sterlingarcher46 should reset when you hold P=0 for a few seconds
On residential units I found that restrictions cause a low suction and head pressure. In your video it shows a high head pressure . Could this be because of the placement of your head pressure gauge at the filter drier port?
I would have to go back into the video to see it. If you could put the time stamp that your referring to in your reply I'll watch it over.
Hello have you ever done a cap tube on a true 3tdd3ct beer cooler. I'm concerned about getting to cap tube at evaporator
There is no room to movie around. Thank you in advance.
Yep, I run them up the backside of the cooler or freezer. If you can't run it through the inside
Is it possible just to cut the first few inches of the cap tube and blow some nitrogen through suction side and see if there’s air coming for the cap tube? I’ve seen people heat the cap tube with a torch until it is red and add pressure from the low side and see if the debris will come out from the tube. I’m just wondering if any of these method might work instead of replacing the entire cap tube? Of course it will not work if any of the debris stocked on the cap tube inside a refrigerator.
Generally I talked to the customer and see what their thoughts are, if there's not a huge rush to get it working right then and there I would prefer to change the cap tube out because I've had several times where that type of method didn't work, then you wasted your time and their money. Cap tubes are really cheap and after replacing a few of them it's not it's not such a big deal anymore. Generally we change the cap tube anytime we change the evaporator or the compressor.
How do u choose the right length of cap tube and why sometimes it’s blocked with frost
I looked at the values ones again and have a questions to everybody interested in this case: how would you explain temperature difference of 50 F at practically no load on the condenser? (T ambient = 70 F, T sat = 120 F (@ 170 psi))
Its not a prefect operating world. The systems are getting restricted and coils get dirty. The difference is seldom the 20 or 30 Over ambient.
You could run the line inside just remove the shelves, unscrew the cover plates. I’m no pro so brazing at the evap in the corner is the hardest part. I believe the trick is to unscrew the evap and fan assembly to lower the evaporator. I’ve seen people recommend stabrite 8, using stay silv /silphos 15 you have to heat the evap a lot and hope the cap stays clear. Unfortunately, I have to replace the cap tube every 1.5-2years. Do you have a suggestion on a txv retrofit, or solution to the repeat problem? I tried triple evacuation which didn’t help. I’m using a c032capT filter drier.
I went back twice then finally dumped the compressor oil and replaced the cap tube again 😕 no problems since👍👍
Changing it to a TXV can be a little tricky. I haven't done it but I've thought about it several times. It may not be worth it, I've asked about doing it before and believe there may need to be other items in the refrigeration circuit to consider upgrading or adding.
@@HVACRSurvival if I may ask, how did you determine how much oíl the compressor needs? Does it say it on the label? Did go by how much oíl you took out? Do you also flood shot the refrigerant lines in the process ?
@@jesusDiaz-oh2gt it's usually wrote on the compressor data tag, but yeah I try to go back with about the same amount that I pulled out or maybe a touch more.
👍👍
Have you ever used a cap tube chaser?
I have seen an old fashioned looking one but I've never used one. My thought is if it don't work then you've wasted your time and the customer's money And then you're right back to changing the capillary tube. I can change a cap tube out in usually 30 minutes plus refrigeration procedure time. (Vac, recovery, leak check)
May need to change the oil as this degraded oil will keep bkockingbup cap tubes
I fully agree, I've had The misfortune of not changing the oil and replacing the capillary tube 3 times in a row. Now if I have any thought that there might be problems with the oil it gets pulled and new oil installed when we do the repair. Haven't had problems since starting to do that.
So what was the issue?
Any guesses?
Was it low charge?
@@chadrayl9648 No, thats why I tried to add refrigerant first, the only thing left was the capilarry tube. I had to change it. I also replace the compressor oil so it doesn't happen again.
#86 thumbs up
Thanks Steve!
What’s wrong with the Testo 550’s??? I love mine... 🤣
They are nothing like my 557. They never reset back to 0 psig on there own. I called testo and they told me there a different sensor or something from my 557. I mean they're half the price of my 557 and the only difference on paper is the 3/8 hose port and the micron gauge that has the resolution of 100 microns per step (That joke was fixed with the newer 557 design). I hardly use the 2 extra features of the 557 but the 0 psi reset on the 550s on there own breaks my confidence in there accuracy. I got two other techs to buy the 550s and there's was the same way, they went back to analog gauges. I never have to hit the reset on my 557 to hit the zero, I might need to reset the 557s once or twice every couple weeks.
550 best bang for the buck.
@@NorCal-refrigeration still very disappointing if they dont reset on there own. My 557 do. My Fieldpiece probes do. Maybe everyone else don't have that problem, I called the factory about it. Got no where with them.
HVAC*R Survival mine zero out 85%
I have a og German set only had the display replaced once about 5 years ago
Lol, Pepsi cooler and there is Coke in it.. nothing new, shows how much Pepsi cares , I'm more than Certain the customer does not "legally" own this cooler that's why our man HVACR is looking at it. Great educational video for the Beverage techs .
The refrigerant we all love to hate...any amount of moisture in the system and it will hydrolyse and eat up the lines...whoever thought reactive refrigerants were a good idea needs to get his/her head examined...
I thought Testo was British...
Nope German.