I CANNOT BELIEVE THEY WAITED SO LONG TO CALL ME
ฝัง
- เผยแพร่เมื่อ 23 ส.ค. 2024
- I'm very surprised they waited till the next day to call me but at least I didn't have to repair it late at night....
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Dude not having the sporlan sponsor card shocked me to my core. Even my kids run around saying "QUALITY. INTEGRITY. AND TRADITION"
Ha ha it will be back on Sunday
Me too 🤣
Same, I was so taken aback by hearing Heatcraft, haha.
me too
It's a fake post!!! Lol
Customer: *stacks boxes right by door*: HA. That’ll teach Chris to stop yelling at us about leavin the door open🤣🤣
good one xD
No Sporlan? What about the quality, integrity and not forgetting the tradition?
"This video has been brought to you by WAIT WHAT?!"
A suitable control circuit fuse could possibly have prevented that punctured line. Although I'd guess it's a fairly rare occurrence.
My guess is the dirty condenser may have had it cycling on that switch and it just finally failed.
clive, i'm also wondering that too... (i'm an eletrician "meister" from germany)
The americans really do electronically-stupid things sometimes... 😂 a simple Motor Protection Switch could save sooo many compressors from dieing (overheating, singe phasing, overamping,...). I also always have to shake my head when he opens those AC rooftop units... man this is an electronic-mess! You think a spider did the wiring :D
They often dont even have fuses for the multiple compressors... only contactors for switching!! those are fed from one single big terminal... no fuses, no motor protectors, NOTHING... if a copressor dies, they trust the main breaker or that silly metal fused-switch-boxes... absolutely insane... imagine we would produce such a thing in europe :D we'll get fired same day :D
Didn't expect to see you here. What a pleasant surprise
Well I didn't expect to see you here Clive 🤔 it's a small world on the internet 😂
I love it when my fav youtubers converge
You... NO!
This video is brought to you by Sporlan. Quality. Integrity. And tradition
He likely did it to see who's paying Attention...
😄😁😆😅😂🤣
@@HappilyHomicidalHooligan well it worked on me
Got me last time he used Parker as the main sponsor. I’m so used to Sporlan being the sponsor, it’s like a main part of the intro!
@@bairfamilyfarm1336 I think Parker owns sporlan lol so in that case they kinda still were
Regarding the suction line check valve. I work for a wholesaler and this is the explanation provided to us by Heatcraft when we discovered these in our units: "We used to do the discharge check valve which worked great but then came along that wonderful R-448A that runs very high discharge temps that tended to keep the DTC valve open at pump down so it leaked back through there.The best solution at that point was to install the suction check and then we made it universal for medium and low temp."
Great video as always. Great Job.
The gas ballast valve on vacuum pumps is not really a bypass. What it does is admit a small amount of air between the rough and high vacuum stages of the pump. This air flow does two things. One, it makes the pump work a little harder, to increase the oil temperature (and the vapor pressure of any contaminants, such as water or refrigerant, that have dissolved in the pump oil). And two, it helps to flush those contaminants out of the pump. The net result is a greater flow rate for any vapors that can dissolve in the pump oil, at the expense of ultimate vacuum. So, evacuating the system to about a 1000 microns with the gas ballast on and then shutting it will lead to an over-all faster pump down and deeper ultimate vacuum.
Well stated
The ultimate vacuum difference (at least with dual stage rotary vane pumps) is negligible. E.g. my pump (non-HVAC, Leybold D25B) has an ultimate vacuum of 10^-4 mbar without gas ballast and 5*10^-3 mbar without. HVAC probably doesn't go below 10^-2 mbar.
@@kanetw_ My experience is mostly with smaller pumps, such as Edwards 5 and 8 series, where the gas ballast makes a fair bit of difference in the ultimate vacuum. I would point out that the specs you gave indicate a pressure difference of 50 times higher with gas ballast, which might be OK for HVAC, but might not be negligible in all applications.
@@robertlapointe4093 Yeah, it really depends. Single-stage pumps also lose a lot when gas ballast is on.
10^-3 to 10^-4 mbar is the region where you can't really use single pumps anyway due to too low pump volume.
So you have to do a multi pump approach with e.g. a turbomolecular pump backed with a fore pump, and there it doesn't really matter if the fore vacuum is particularly low as long as it doesn't exceed the turbo pump specs.
In vacuum drying applications you'd end up adding a roots pump to get good pump volume at low pressures, and same thing happens again.
Also a thing I just remembered: the 10^-4 mbar is partial [air] pressure, but around 10^-3 you start getting oil backstreaming so the ultimate total pressure (hidden in the detailed datasheet..) tops around 2*10^-3 mbar.
This guy is truly a master at his craft. Love the videos and the explanation. Keep up the great work.
That really spun me out when he said something different at the start of the video because I'm so used to hearing Sporlan, rather than Heatcraft 😂
I love how you keep your mistakes in the videos. Helps me learn the “don’t forget” type of moments. Well done!
gotta love when the boxes are stacked right up to the door
Gotta love quick dump n go driver deliveries
Trucker Tetris FTW
The bottom boxes were probably nice and solid and stiff when delivered but then melted into mush, leaving the stacks ready to fall over as soon as the door opens... liquid ice cream, etc.
Wait, a video not sponsored by Sporlan? Is it the end of the world?
Ikr I thought the same
I thought the same
Not the first time
Nah, end of the world would be either Raid:Shadow Legends or PCBWay XD
@@DiverCTH having used them before PCBWay are a reasonably good service... just most of their sponsorship is hitting too broad a demographic. Shadow Legends on the other hand....😭
I do find it interesting when you mention ‘big picture’ so often. When a lot of the big picture stuff you reference is ‘Check wear items for wear and replace as needed’ Like, you’re totally right it’s big picture stuff that needs checking. It’s just interesting that people need to be reminded that parts designed to wear out and be cheaply replaced need to be checked routinely and cheaply replaced when needed.
The same goes with automotive repairs. Always big picture, look under the car, examine all the structure and suspension/steering components and address anything else you might find about a customers car. It's not about making the most money but informing the customer that it may be time to replace equipment even if you don't get the job. At least you were honest with the customer and that's what really matters.
A video not sponsored by Sporlan? That caught me off guard
welcome to america, he is doing a video for QVC too.
I watch videos like this rather than Cable TV. I know nothing about what you're saying but find it therapeutic. Hopefully I will be able to help myself someday down the road. Great videos.
Different sponsor but still brings up sportlin goda love it (dont mind the spelling)
"I don't know what gas is in it."
My guess is 'Nothing'.
Underrated comment.
Just wanted to say that I am not a HVAC guy but I enjoy watching your videos because of your professionalism.
I have to say it was pretty cool to watch the suction line go from no sweat, to condensate to frost while you explained the compressor unload and check valve process
Whoa Heatcraft! That threw me off. Welcome to the best HVACR channel Heatcraft.
You should mark all that food with a marker and see if they throw it out when you return to do a follow up
As a mechanic on south Africa, it weird to see so many electronics on the system. Like I've heard about the electronic expansion valve, but we mostly still use the normal TXV
yes we have EEV. just a friendly reminder dont try to mix a new Evaporator EEV with an old R22 condenser!
I used to work for a small local telephone and ISP company. We had our business customer routers on fault detection. Some times I'd show up at the customer before they had called us. It was a service that was included in the monthly fee and our company owned the routers. And this was such a small ISP that the customers mostly personally knew everyone in the area. @ 31:05
Love your videos! The IoT world is really great for a scenario like this. With the alerts we can also drive it to automatically make tickets in a field service system if there is contracted PM agreement.
I took a few semesters of trouble shooting and refrigeration service school years and years ago and I've been a tin knocker most my life and mainly done installation of big duct and equipment.
I fast forward through a bit of video and wondered why you didn't but a vacuum on but my bad for judging because you explained at end of video 😉
My first time seeing your videos and you were very informative and maybe you should consider teaching 😉 . You crammed a semester of school in less than a hour
Thank you for a good video
So a device shorted out and blew a hole through the side of a pipe...
Welcome to the Wonderful World of Arc Flashes...
This by the way, is why High Voltage disconnects (especially High Voltage DC Disconnects) are built with Arc Quenchers in them...they stop the Arc as fast as possible to avoid excess damage to the Contacts and or other equipment/people that are next to the Contacts when the Circuit is opened...
Arc Flashes are also why High Amperage Fuses are built so large and above a certain value, filled with Silica Sand, it's so when an Overload happens, they open the Circuit without becoming a Fragmentation Grenade at the same time...
That dryer thought it had the upper hand but in the end you were victorious
As handy as “smart” (internet connected) devices are, most of them aren’t properly secure and that’s the reason people are a bit hesitant to use them right away, probably not even the fault of the manufacturer but usually whatever subcontractor actually engineered the module. These vulnerabilities can expose the entire company network to hackers once an exploit is found and the smart components aren’t updated that often to patch the issues since that’s not the subcontractor’s main concern.
Another problem that makes some hesitate to adopt such systems is that just like home smart thermostats the power company may be able to reset them in power situations and then the restaurant might not have proper cooling for there food storage. I do not know of this having happened yet, but I can see some power companies trying it.
@@richardstephens3327 the only people that have had their thermostats adjusted and locked out by the power company willingly signed up to give up control of their thermostat for a small amount of money.
And another problem source: mantain connection and communication.
So in a integrated system u get more than two usual work / pont work states. And the other states can go over anybody, how cant predict the system behave.
And there is more than two system are chained from actuator to the consumer.
I cannot believe I found this interesting and watched the entire thing.
I'll do it again.
When you dropped that drier and reached down to grab it bare handed I said "Fuck" out loud to myself because at that point I knew I was about to burn my hand 😂 been there done that got the bar shirt haha
do you think that Jesus had said the same thing, working as a trademan.
Good job boss . you always give new skills, Am in Africa watching u keep it up....
Over all picture... Good job!
Congratulations on 150K subscribers.
At 27:00 Chris, save that silver. Store it away until you have a bunch, then you can melt it down and clean the metal up with borax. There's a bunch of info on the 'net.
Oh no, oh no no no no nooooooo....
Another day, another great Vidya, thanks
that right, back up the ladder?
24:17 talk about flooding back that EEV must be going nuts look at the frost on the suction line
They always wait until its 50 degrees before they call you. Then you got to stop what you are doing to come right now to fix it. Its a kick in the groin to get there and the box is stuffed full of melting product and somehow its your fault it's not working. I would notice something going wrong about equipment and let a manager know and they will go. We will wait and see if it doesn't fix itself. Like the refrigeration fairy is supposed to come by in the night and fix your walk-in. You better leave some quarters in there first.
Hey Chris , nice show with Ty tonight. So on that tdr (time delay relay ) I had heat craft telling me today that it’s there for when the compressor shuts off, not the other way around, and the lps is wired in parallel with it , discharge temp in series which someone’s since eliminated … plz advise , tyvm 😎
This was on a beacon II system
Speaking of tradition, yay for the 80's retro synthwave brazing montage!
and thank you so much for clarifying that 600 microns is sufficient for these really old systems. ive worked on plenty of walk in freezers that are from the 90s. My coworkers think theres a leak if it wont go under 500.
Could be true, if you vacuum long enough you should be below 500, but it probable wont stay that low. But there is no problem to run the vacuum pump for a few hours or more to get good vacuum
@@timodeporto686 this dude goes above and beyond. if he says its ok, i believe him
@@garyhyde1370He states in the outro that he prioritized uptime vs "the best way to deal with moisture in the system". He didn't say it was OK to vacuum to 600μm, he said he got it back in service and is trying to have the customer allow scheduled downtime later, to change out the oil and properly do the job.
I like this (these type of calls) calls!
Thank you Chris for the great video, always enjoy your content.👍
Yo Chris dude great video loved the music when you was welding I was dancing around the room watching? Keep safe and enjoy the weekend
And this music to any old school side scroller shooter, add a beer and you can't go wrong....
First day of fall and just got my HVACR hoodie and knit hat.... too bad its still 95 degrees down on the bayou!
Hope I need to change a freezer evap motor soon!!!
Thanks for the support Dave!!
23:45 - Is that time delay a delay-on-make? or delay-on-break? It would seem that delay-on-make would keep the compressor off longer in case the pressure increased slightly after cutout (unless I’m over-thinking it, here). I’m barely two years out of school, so I’m still learning a ton. Thanks for your input. I had a walk-in that was short cycling on low pressure cutout during pumpdown.
Yay, you brought back the 80s electronic music for the braze montage! Reminds me of original Street Fighter lol
Nice new sponser in beginning and soldering time lapse music. Enjoy the education/tips and tricks from vids. As you would say you're just speaking to yourself out loud
you replace a lot of contactors in the usa i think its that in the usa you have 3 phase 208volt and in europa we have 400volt 3 phase so the current is lower and dont burn out the contact points in the relai
i m a electricien in holland and do a lot of work also blowers etc in the restrands the cabels are thinner here also so its easlyer to bend it
We do have 480V 3-phase, but most likely found in manufacturing.
It's funny to see those disposable gas tanks still in use down there. They've been outlawed in Canada for some time.
I loved the "curved rod for that fantastic 'around the corner' action!" at around 11:00. Seriously that's a good soldering technique. I gotta say, those customers are just not that bright. It runs counter to YOU staying in business, which I want very much, but this restaurant is so negligent I'd be very afraid of eating there.
I didn't know Bob Ross did HVAC, hello there my happy little bearded friend.
Love your videos really well done and easy to follow
What you'd have to do to convince the customers to go for it is create a server with a VPN end link. You then have a router at the customer site that is ONLY used for the refrigeration equipment, and it's only connection outside is through a VPN directly to your monitoring server. That's how you have to sell it - end to end security, with YOU being the person doing the monitoring, not them. Charge them a set fee per site (or machine) for monitoring ($15 per month per piece of equipment, for example). To compromise their systems, someone would have to break into your system, then bounce to their system - which requires another level of malicious code breaking.
Nope no way you should give important infrastructur anyway of internet access, who says the company doesnt brick them by mistake or because you didnt do there required service from an authorist technican.
Put somesort of thermometer in the freezer, that gives an alarm if the temperatur is to high and send an email/sms to the hvac guy, that they come and check.
But it shouldnt be able to set any settings on the freezer itself.
@@jonasstahl9826 - I disagree. There are points where you have acceptable levels of risk. If the end points are all contained within VPN, system penetration requires the same effort as physical penetration. You're more likely to have someone on-site bridge into the link than to have someone breach the end points from outside. That sort of physical access can't be stopped by _not_ having internet. In many of these cases, it might be that a warning could allow kicking on an extended defrost cycle to _keep_ the system from requiring an on-site visit with a hose, two weeks later.
Or, make the premises equipment end read-only; monitoring can occur but (mainly) info flows one direction only.
0:20 BOOM!!!!
Has always enjoybel to watch
Chirs good staff
Keep it up
That is the case when the problems stacked up with time. And the constumer don’t care abaut second or third level alarming signals as with as the f. big blinking red lights in his/her face.
That is a usual “not my problem”
behave, untill the unit is totaly fall and the problem geting able to transfered to some one else. The complett bill and the failed goods are olso count by some one else. So no problem at all.
I usualy drop this kind of customers, or priorize them back at the i-have-noting-to-do times.
Kinda cool how we saw that line frost up and thaw out in realtime
God damn it was hot on that roof !! :o
at 7:45 welcome to my luck! 🤣
Awesome technique…….. doesn’t take any longer to do it right. Effort=Reward…. Little effort=Little reward…. My students at NAIT in Edmonton Alberta watch your videos
Thank you for perfectly explained
That vibration on the compressor line was maybe because shock mount missing. You were tipping it up and down, seemed like it lost its rubber. did you tighten that down to its base????
Can we get more videos of coolers and freezers with the intelligen board?
I'm a computer engineer, so I don't usually deal with high current or voltage, but I always wonder why these units don't use solid state contactors. It seems like the contactors almost always need to be replaced when you get called even if they weren't a major contributing factor of the failure. Is that due to cost, technical reasons, or something else entirely?
Definitely just cost and availability. Contactors are cheap. Perhaps some hesitancy towards change as well. Someone previously linked a nice solid state contactor with inbuilt delay timer and all that goodness when Chris was changing a bunch of contactors from sand ingress.
It would definitely be a good improvement for long term reliability in harsh environments and just in general.
Take a look at the thermal disapation curve of SSRs. Mechanical contactors, when in good condition, have almost zero voltage drop across line & load. Even good SSRs drop quite a bit of voltage across the SS "contacts", and that makes a lot of heat (and is a waste of energy).
It's not just cost.
What gets me is that these mechanical contactors, put into outdoor service, are so poorly shielded from the elements.
Loved the retro gaming type music during the Braze.
So much work for a little repair,I would of just spot well that ,vacuum it and call it a day,
Before you do the vacuum, pressurize the system and do a quick leak check on your welds,that way you don't have to worry about after you send the refrigerant
Lol. I have had 2 of those blow out.
Shorts out and blows the hole.
Love seeing a trend.
hey, got a question. Everytime when system is empty, got a leak you should looking for a (as you said) oil signs. So. When there is damaged condenser, damaged pipe or whatever damaged, what cause Freon leak then leak oil too which is mixed with freon. So. Theres no general rule to add oil to system when 100% of freon leak and some% of oil is missing from system too ? Sorry for my english, hope you understand.
Omg Chris I don't know how many times that has happened to me! All the boxes just fall out as if s little kid cleaned his room by stuffing all his stuff into the closet!
That must have happened at the dairy queen near me because it ran out of ice cream somehow.
I don't understand why they accepted a delivery when their box was obviously not functioning. Now everything in that box has to be trashed.
Man, I am SO glad I don't work on kitchen junk anymore, I will take a nice simple chiller any day.
Did't hear ''Sporlan'' so i had to check i'm on the right channel XD
Awesome fix👌
my line of work is pretty much what you do. recently had a fancy evap like that one EEV 2022 digital display all that, but paired with a 2003 R22 condenser. Evap kept getting top part frozen up. would freeze up imeediately and it was a cooler. Tech support said the capcitance doesnt match with the compressor and evap. Have you seen this before?
The wet rag touch 👌🏻👌🏻👌🏻 love that stuff
👍💪❄️🇺🇸 Great informative vid thanks Chris 👍
Excellent work
"i dont know what gas is in there ar the moment" its called air XD
wha???? Different sponsor caught me off guard not gonna lie.
Ha ha... Sporlan will be back on Sunday
This video is brought to you by.....ahhhhh you thought it was Sporlan....and started saying the tag line huh.....Chris throwing in a curve ball. 🤣
A little off topic but I enjoyed the music during the brazing time
That Chingas is cattywompas!
I wonder how the little controller there on the evaporator unit will handle moisture? Can already see tons of water behind the display at 25:00. Hopefully they have some conformal coating on the PCB in there or it will have corrosion issues down the road. One could make the argument that it "freezes" and is not as much of an issue but as soon as someone opens the door, it will just vacuum moisture right up from condensation.
Quick question, when you do torch work, so you have fire extinguisher nearby? Just curious, seen a lot of roof fires and building fires from people doing hot work. Keep up the good work sir. 👍🤠
Melted ice cream seems to be a common thing in your freezer calls, I wish restaurants prioritized maintenance of their equipment and took it more seriously, though I understand how expensive this stuff can get
This problem wasn't maintenance related
Another Emmy Award Winning Brazing Montage!!😁😎
Great ending, you are completely right. You just never know!
Always a good watch! I do have a gripe about you cleaning the condensers but not spraying off the inside of the unit! Why leave it so dirty if you already have the hoses on the roof?! Much nicer to work on a clean condensing unit! Maybe that’s just me 😜
What no Sporlan plug? Am I on the right channel?
I still work with them just not on this video
Can you film the changing the oil on the vacuum pump? Maybe explain what you look for on the oil?
"I know what's wrong with it, ain't got no gas in it"
And the restaurant is going to serve the ice cream once it re freezes.
Boss the chicken thawed out. Ehh toss it in the microwave it's still good.
Once melted ice cream re-freezes, it becomes a dense block of ice. It begins as two-thirds air (give or take a bit)...
I can't believe it's not butter ......ooorrrr was it 🤔
Whats that suction check valve for?
Edit: i see now. I usually install a check valve in the discharge line of scrolls with pump down for the same reason and to prevent liquid migration into the compressor on the off cycle
R-448a, what's the word on this gas? I still only come across 404a.
Dam delivery drivers . Good grief.
17:56 - How much air gets into the system when changing drums in the middle of a charge?
When hooking up the new cylinder you purge the hose to remove the air, I will discuss this tonight 8/28/23 @5:PM (pacific) on my TH-cam livestream, come on over and check it out th-cam.com/users/liveh-J12S72LDo