WALK IN COOLER TOO WARM
ฝัง
- เผยแพร่เมื่อ 21 ต.ค. 2024
- So I had a call on a walk in cooler that was temping high and found the equipment in very poor condition.
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I am german and I have learnt frigorist from 1957 to 1960 in the Saarland. I have then as a monteur/machanic/fitter workt. 1972 I have make the examination of a master in this business. By the begin we have build the kondensingunits and the evaporators, with open kompressors for CH3CL (cooling liquid), in own workshop. I was in this sector at 2003 in work. Then just as pensioner I am interesting at new system of work, new cooling liquids and new tools. Thank you for the presentation.
Your guys are lucky working for you and getting proper education in this trade, hope they realize how much easier their carriers will be having a solid base,Great Job Chris!
Actually Paul my name is Chris. Bryan runs HVAC school and I have HVACR Videos..
HVACR VIDEOS Sorry Chris, Still mean what I said:) Corrected.
No worries bud, thanks for watching!!
I am out on a workplace injury and I feel like your videos keep me updated so that I don’t loose what I need
I have small backlog of footage so even if I have no work I have videos for a few weeks!
Very good point about only grounding one end of the shielding! Lots of people miss that, and wonder why they get so much bad data.
You don't like creating ground loops?
@@RobertSzasz In the Audio/Visual trade we love em'!
I like how the expert pin is just 99999
The ol' reliable 11111 was probably too easy lol
Max Moors the most common default pin codes are all 0, all 1 or all 9
@@asknightmareluna6445 Yeah, it's with the aircons at work too. They also all are 9999 for the advanced settings 😅
Max Moors which confirms my point. 0000 is for unsecured while 9999 or 1111 is secured
I'm sure the condition of the evaporators had something to do with bad valves on the compressor. I was surprised to see the video go from a repair to replacement but makes the most sense. Good video.
Chris,
I'm a facilities tech for a family entertainment center. One of the things that I have never had any training on is HVACR. The only way that I learned anything was to call out to a local service. I would shadow them like a puppy dog. They often get irritated with that. I always ask questions and sometimes a patient technician would explain the situation. Thanks for making these videos! I have learned soo much more in the past few weeks watching your videos than the last 10 years of shadowing the technicians we have called out for service.
I have to say this buddy. I have a lot of time for you and this channel. I've been a refrigeration engineer in the UK for 20 something years. I've always worked in the hospitality industry and the guys I've been around have no real passion or interest in their work. Apart from my own studies I've been seriously bored with my job for some time. But since discovering your channel I've learned a lot, more in the past 3 months than I have in the last 5 years. I've also become interested in my work again. It's really a blessing to be able to find someone who cares so much about what they do and puts this information out there for others to learn from. You are one of the best mentors I have ever had the opportunity to listen to and watch. Keep up the fantastic work and thanks again 👍
Nice little evaporators the way they link up to each other and control everything in one place.
Watched until the end as always!
Thanks for showing the fan startups on the evaporator!
nice clean install
I saw the size of the receiver and I was like “why the heck is it so freaking big” and then I hear you say “tech support said put in 20 lbs” and I immediately went “oh yeah that makes sense now”
Thanks again for the great videos. I'm just starting the commercial side in school and appreciate the videos.
Another HVACR video. This day gets better and better
Good job mate !
Great job as always 👍👍👍
Good video nice to get the replacement
I'm not in this business or anything related to it, but I enjoy watching people showing their work.
For me, it would've been helpful if there was a short explanation right before the part where you started the replacement, which was at the end now. I could kind of follow along, but I wasn't sure if I really understood what was going on until the end scene.
I hope there was no lightning near by when you were up there! I used to work on cell towers when I was a younger pup and had to many close ones. That's one thing that truly scares the bejesus out me. Be safe my man and thx for the great video as always.
TH-cam suggested one of your videos to me and for some reason it caught my attention a few months ago. Im not in the HVAC world at all, but I cant stop watching.
You do a great job explaining how these systems work and why they went bad and how you are fixing it.
I do wish you did more residential stuff but I know thats not the work you usually do.
Another great video. Thanks, Chris keep up the good work.
Keep those videos coming. We need them now more than ever.
Thank you for the upload Chris.
Good video. Nice to see the Inteligen system in use. Coil cleaner or food acid fumes could have destroyed the evap fins.
I don't know why this was in my recommended, but I clicked it out of curiosity and watched to the end.
I am now subscribed, and looking forward to more!
You are one of the good ones. You take a lot of pride in what you do and you are willing to take the time and energy to do it right the first time!
Love seeing new equipment. Gets me giddy.
I don’t have much in the way of feedback. I’m not in the industry but am just fascinated by you’re hard work and ethical approach to the trade!
Great video Chris!
On those carel valves you can disconnect the wire connector and rotate the coil to open and close the valve. Then you don’t have to power them up. Don’t pressure test over 150psi. I argued with the Heatcraft teacher at the intelligen class I was in about that. He said you could test up to 300 psi. I have put about 8 inteligen units in and about 20 QRC units. They are good units very little issues.
Tech told me to slip the transducer off if I wanted to test above 150 psi.
Nice job my friend!!!
Awesome video 👍🏻
Excellent job 👍👍👍
really nice units , very simple and hopefully will work for a very long time without problems , you did a very professionnal and clean job !!
Great install
Stay safe! I love your videos, I learn a lot.
Really cool video Chris 💪🏼💪🏼
You bring new meaning to " wet behind the ears " Great vid as usual Chris ...
Wow that new equipment is beautiful
Great job, looked good to me brother, keep up the good work .👍
Thanks!
Wow 😯 amazing job! Well Done 👏🏻👏🏻👏🏻
Great video. Keep em coming 👍🏽
Excellent video. I like the follow up at the end. It sums everything up and explains a few things as well. I havent had much experience with that make but they look pretty slick. I'm amazed that your coolers have defrost timers on them. Up here in canada very seldom is there a defrost clock on a walk in cooler. Must be the humidity down there or the higher temps keep the units going longer
I wanted to say that I'm sorry that I don't leave you any feedback about what your doing because I'm just in middle school but all I can it looks awesome, great video! It's entertaining! LoL 😂 One more thing I probably can be an HVAC tech just from watching your videos! 😀
"Just in middle school?" I wished I had some direction/inspiration as you do when I was in M.S! Don't put yourself down or expect someone to think anything less of you because you're in middle school 😉. If they do, use that energy to prove them wrong.
That’s great man , I’m 44 I decided a couple years ago to change my profession and these videos made me want to choose hvac , great profession
Eric Lederman people used to think less of but now I'm a lot taller now so now people are scared of my JK. I know what you mean by not have a direction because my brother doesn't really know what he wants to do so I can feel you from back then lol 😂. I still don't know exactly what I want to do but I'm thinking about HVAC tech or TV prouder or something to do with TV but I have a direction. Now I think it's a prefect time to... Plug my TH-cam channel it's Damon Abets and I kinda a daily live stream called Live at 3 subscribe to my TH-cam channel LOL!
@@damonabets3779 Forget TV. It's on the wane worldwide. Get yourself a real trade; something that will be around forever. Electrician, plumber, builder, HVAC tech, etc. With the right attitude and the will to work, you'll be a success. I wish you well.
PS: Also check out Steve Lav's channel. There's a guy with a bunch of related skills: th-cam.com/users/stevenlavimoniere
That receiver is huge compared to the compressor which seems small. I suppose thats two coil thing!
Nice job. I too would prefer to replace line sets after getting a new unit.... how cheap are these customers.... you said they sent, does this mean the equipment was provided by the customer? If so, what of the warranty issues?
is that evap damage from someone using Blue Coilox and not rinsing it off? I left it on a condenser once because it was raining, went back a week latter and it was eaten away like acid hit it. I typically use the Green version now that is a leave on formula, I think I've seen you use it on an ice machine
I’ve seen those exv components fail a lot on a certain brand I won’t name. Not worked with the heatcraft supplied digital Evaps yet. Basically because in Australia heatcraft struggles a bit with their service.
Good job nice work ,
I was wondering if you guys clean the existing lineset before installing? Because in Mexico before we swap out a system and we have to use the same old lineset we clean the lineset with 141b and purge with nitrogen. Nice video, I’m a fan of your work
That new equipment is nice, good word
Clean install
You mentioned you checked rotation of the compressor. How did you do that? With a phase rotation tester or is there a easier way? Still learning. I know that say on 3 phase to just switch a leg on scroll compressors if you don’t see it build pressure right away or if you hear it start up hard. But is there a better way? Or and do they normally rotate clock wise or counter clockwise on Copland scroll? If you have insight it’s always good to learn from your videos.
I’m not even remotely qualified to troubleshoot HVAC and I agree that the evaporators and condescending unit required replacement. I also find that many people want a quick fix rather than a correct one. Perhaps the valve issue is improper technique.
Do you have opinion how much owner can save with electricity bill with new unit versus old one?
I think this depends too much on the exact units used and there condition to make a general statement. I can tell you al little story from work tho: We used to run some very old systems still using R-22 back at the place we had rented for our servers. Switching to a new site and using heatpumps we cut our cooling/heating bill by more than 2/3 since we could use the server room heat now in a useful manner :)
Keep up the good work your vids intrigue me
Great video man
Re setting the date, you'd think they'd boot the starting year froward in the firmware from 2001 by now.
Yeah I agree
do you have a video explaining about superheat, subcooling, etc.. and how to know if it's okay or not.. what happened if the number is too high or too low..
thanks..
how much did you charge for the replacement, labor plus material??
good video
Wanted to share some feedback from Heatcraft and I from the field -- bubbles showed up in the sightglass on a -20 degree freezer -- normally 1st reaction would be to keep that sight glass full so you have a full column of refrigerant feeding the TXV -- not so fast. My first instinct was getting a temperature drop across the drier -- Heatcraft wanted me to take a pressure drop at the outlet of the receiver; then, use the same high side hose and take a pressure reading downstream of the filter drier -- kill me now. Also take subcooling and superheat readings at the CU -- Modern Refrigeration CU's condense much lower than 30 degrees above ambient temp from 10 years ago.
minus 20 degree freezer
I like how the condenser fan motor was just bouncing about when you looked inside at about 0:50. That seems optimal.
The old line-set was no so bad, cause it was not a condition of burn-out. If it was a burn-out then then old lines should be flushed or replaced, but is merely a number of components worn out. These new rotary compressors have no valves to wear out or restrict flow making for a more efficient systems. And in theory, with digital control, air defrost might even be dependable. How is there so much filth in the coils ? Does someone sweep the floors into the cooler ? The customer needs a wash hose and a schedule.
tbh i liked watching you program the new system.
Maybe you could share what you are charging the customers for these installs of new equipment. I am always being told I am so much cheaper that other companies in my area. I am curious what a more professional company is charging. Thank you for sharing your videos.
All cables and conduits are supposed to make mechanical connections at termination points or transition points, meaning all conduits shall be mechanical connected, and cables shall have a fitting at termination point.
I will never understand how owners/managers can just ignore preventive maintenance. I guess you just can't fix stupid. You said you do not show your employees on camera. Would that be Privacy ? Nice clean Job as always.
Run to failure is a maintenance strategy as well.
Because it costs money for f it dosent immediately make money its a waste it’s why they’re fix something over and over instead of spending the money on something that solves the issue
Cylinders so shiny I can see yourself! What causes all that damage to the fins on the coil? Tap dancing elves? What can be done to avoid the problem, short of regular cleaning?
just a passerby but I'm gonna say many cycles of freezing up and thawing probably damaged the fins like that. The same way ice damages roads and sidewalks. Enough freeze/thaw cycles and it just crumbles. But due to the apparent laziness of previous maintainers it could also have been careless handling of the units too.
(Google translator translation) Hello! tell me how is the protection of control units from moisture implemented? degree of protection indicated? ip54-68? usually when microelectronics condensate and short circuit from heat to cold. if you show how it works, I will be very grateful! Vasily from Russia. Great job!
when it is raining outside and you walk back inside in the cooler, dont you freeze up? or do you have dry set of clothes as backup?
One local code to where I live is all sprinklers In the box and above the box require bash guards
I've always wondered. What causes the fins to deteriorate like that?
Improper cleaning? Bad maintenance? The product being stored? People hitting them?
Very nice install. Just subed
Rain damn sure killed my SMAN 360.
Now i run the joblink and a yellowjacket analog
What are you using to get your water in the cooler to defrost the coils? A portable tank of some sort?
Question with these smart evaporator what protection is used for the soft controls. Or smart controller???
Could u do a video on the programming of the thermostat along wuth the wiring of the sheldied cable
How do you deal with working in confined space situations while brazing evap linesets in walk in coolers while flowing nitrogen?
Well done, At first I was like repair the old unity - new unit is better
if i ever have to use existing lineset, i add suction line drier to it
What is the best product that you can recommend to keep the evaporators clean besides the hot water?
what do you use to record your videos just your phone? or a camera? if so what type of camera, I just bought a go pro to record my hvac videos just curious what you use
I use my phone a Galaxy S-10+
Flippin receiver is huge , man !
How do you like the blue hose , is it a pain to install ?
Why did you select CU wired No ?
How long does it take to get under 500 with those blue vacuum hoses?
What leak detector are you using in some of you videos?
The Dtek select amzn.to/2J7FjiH
I'm new to your channel and I have a question. Does icing cause deterioration of the evaporator cooling fins if icing occurred multiple times??
It can in some circumstances
@@HVACRVIDEOS Thanks much, reply appreciated.
I hope the manufacturer of IntelliGen controller has some special type of rotary encoder/switch. From my experience when used rarely they stop working after a few years (e.g. Nibe heat pumps). Even after 5 minutes of turning they do not operate properly and servicing is a nightmare.
Great job Chris, thanks for walking thru the intelligen, never seen those before thanks for sharing.Basically the B Unit is a slave to A? is there only one solenoid? Appreciate you bud thanks again
Yeah the b coil is the slave, the electric expansion valves acts as the solenoid valve. The master coil communicates with the B coil via a shielded com line. But each coil has it's own valve
5:23 The HVACR tech gets confused! Make sure to not confuse yourself if you want to check the pressures by verifying that the clock is clicked out of defrost. Next time.
R448 a is a very efficient refrigerant and runs at similar pt ratios to r22. Ive never seen those intelligent coils. I'm not sure how i feel about that. Cool to see though.
they are a pain and savior. Depends on what issues u are having.
I'v been getting advertisements for Bluon R-458A on these videos. www.coolingpost.com/world-news/bluons-r458a-refrigerant-is-snap-listed/ Seems to be a complex blend of difluoromethane (R-32), tetrafluoroethane (R-134a), pentafluroroethane (R-125), hexafluoropropane (R-236fa), heptafluoropropane (R-227ea). The specs seem to show it runs at lower pressures than R22, transfers heat better, and requires no modification to R-22 systems to retrofit, as it's mineral oil compatible.
nice fix, cannot believe those evaporators were in that bat shape, all that lint on the uck was just disgusing
That's a huge receiver for a walk in.
40lb 448b eesh
It’s weird how the new condenser is so big.
Nothing weird about it. This is just simply because it is set up by someone who knows what he is doing. The spacing between the condenser fins is much less likely to clogg up this way.
Cant beat new
Did you charge for the first part of the job or only for the change out?
I charged for everything
thanks a lot....
Quote from NEC code book.
607 thumbs up...great turn around time on the video posting.