Trying to get customers not to do things can be like you're pulling teeth, also equipment not being used to manufacturers recommendation is also a problem. Always look forward to seeing these videos. My wife says when I'm watching them oh it's the fridge guy
Just replaced an axial fan for cooling the boards and gas valve for a Vulcan oven that is being operated at maximum temperature all the time greater than 500° I showed the management that the wire connectors are beginning to crumble if you even look at them they like to keep their cast iron ready to go so that everything sizzles when it served. I reminded them that even at 400°. It will be less stress for the components and still be almost 200° of above boiling.
Yea, you nailed the cause of the dead compressor valve. Loose TXV bulbs will do it in every time. Bulbs in incorrect positions will do it too. It's one of the reasons I hate digital probes in TXV applications.
Nice bit of troubleshooting on this one. Like you would say, we don’t just replace a compressor & walk away. That intermittent flood back would have surely killed the next one. Like I learned from your videos, you got to be relentless & dig & leave no rock unturned.
I work on similar equipment at jimmy johns and subway. Doing this while they are making subs. You either stay there and get food all over you and your stuff or get up everytime a customer comes up. Not a good time
I just graduated from an hvac program. Im doing commercial installation at a government secure facility (cant say where) and doing food service refrigeration on the weekends. Got an Alto Shaam blast freezer on auction and it was a basket case. Almost done rehabbing it to sell, but im struggling with keeping comp superheat stable from hot pull down to 0 deg. Learning a ton though
Hell of a good job figuring it out Chris...had to bust out the Magnum PI skills on that one. As for the compressor manufacturer who makes less than desirable comps.....the one and only LG.
I have seen some poor refrigeration systems in beautiful stainless coolers with cooling rails, and they were mostly undersize or oversize. Your idea for an accumulator is exactly what many oversize units need because start up frequency and working loads are all over the place. The undersized refrigeration units just run so hot that the lifespan is 1-2 years. The warranty covers the first compressor, but not the second. Condensers are often too small for the load because they wanted to keep it compact. Oil breakdown due to high condensing temperatures clogs everything. Corrosion on some copper but not other copper is often from different grades (Alloy) of copper. Made in China components can run the gamut of poor to good. Appearance when new is deceiving.
Chris. This week we had a brand new mechanic working with us who took on a 290 unit, I asked him if he was familiar and competent to deal with it, unfortunately he made a mistake had a very strong flame out, burning his hand and fingers pretty bad, after making sure he was ok then chewing him out for about 20 min, his homework was to watch several of your videos while he was off work. Your training technique and attention to detail was something I wanted him to understand, I hope when “if” he comes back he’s learned from your videos how important big picture really is!
He didn’t purge the system AT ALL, it was still full of flammable gas, he recovered but didn’t purge, the residual gas lit up like a nice butane torch or so I was told. (I wasn’t there as I don’t do much field work now) the mechanic (tech) and the helper he had with him luckily had taken the unit outside. The helper told me after that he had said, “I think you need to purge the gas out of this before you take the lines off” he said next thing he knew he saw a fire ball and the kid was holding his hand. As I say this is all second hand information but after seeing his injury he definitely make a very big mistake
I made a ton of money offering 1 month, quarterly or 6 month preventive maintenance services. Nearly all of them accepted any of the contracts. Pizza joints would go monthly to blow out the condensers on pizza prep tables due to flour.
@@HVACRVIDEOS all I’m waiting on is my background check. Once I get cleared it’s game on. My present boss is shafting me real hard. I’m switching companies for the better of me and my family. If you treat the employe good he sticks around. Treat him like shit he will leave.
The salad well always flood back as there are a static coil with no evapfans they usually have a hinged top as well as the containers should be in to hold the cold in and the heat out
Thank you for the video, you boosted my confidence a lot bc I understood every single thing you were talking about the entire time. It was awesome how there wasn’t anything that I didn’t know what it was/ what you were talking about. I’m a student atm I’m halfway done w/ my EPA done already bc I wantsd to understand the whole refrigeration cycle better. I know it like the back of my hand now. This is my life, I’m so excited to get out in the field.
This was my life!!!! I absolutely love your videos. I asked about duct detectors a bit ago. Anyway you should do more of this. This keeps the in the trenches guys better informed. There is no one doing this. It shows how not on the roof is like.
You’re 100% right, compressors don’t just go bad. Just two weeks ago I diagnosed three destroyed eight cylinder recip Bock compressors on a big chiller. At three years old and slightly too much capacity for its heat load the chiller had multiple slight issues from the manufacturer like a too little internal heat exchanger to raise superheat for R290, too big EXV, a heat reclaim system that probably lowered liquid enthalpy too much for it to properly superheat the suction gas, that combined into three compressors getting liquid refrigerant and completly destroying itself. Like connecting rods being in the wrong cylinder and piston scraps littering the oil pan.
@@HVACRVIDEOS kinda. The chiller is for a medium sized butchers shop and the customer claimed a way bigger heat load during planing than what he actually needed. The compressors are load regulated via suction canal solenoid valves which the manufacturer claimed would work perfectly (which it initially did) but the long hours running medium and low load must have screwed with the superheat adjustment. Atleast that’s the only way I can explain this massive damage this shortly after install and with the manufacturer doing the maintenance the first two years due to an extended warranty.
Your video reminds me of red-tags I would see on returned compressors from repair. They were so fed up with seeing so many compressors at the repair place, the tags basically read: These compressors don't go bad, please check something else. (Old V-twin, piston, cast-iron compressors.
I work in a very large truck fleet and watching these videos make me want to start learning about our mobile refrigeration. I got my 609 a while ago and I do want to get my 608 class II but sadly I work overnight and I don't believe I will get the training to perform any refrigeration work.
I work on very similar systems, the static coil we usually run off pressure also we make sure we have a suction accumulator fitted in so when the static coil runs on its own.
I can't even imagine why the customer would give you any flak. You went above and beyond, did an stellar job and.... 2 hours? To solve all that on the second day? If I were the customer I would be thanking God for sending me a master technician.
Im a DIY unlicensed fella, I do all of my own stuff because I feel like no one wants it to work and last like YOU the owner does. By no means am I as skilled as you with that torch!!! That was clean! Can I ask why you didnt purge with nitrogen? I always purge because "Thats how they do it in the factory" This is my first time here so forgive me if youve explained it. You seem to know your stuff and give off absolute pro vibes but the lack of nitrogen killed me.
Chris you are absolutely the best!! I literally laughed out loud and had tears in my eyes when you showed your irritation and frustration with the manufacture concerning the TXV sensing bulb strap location and I totally get it, I know what you mean and I can definitely relate, I work on refrigeration and HVAC equipment with my employer as well and sometimes I can't understand what the engineers or architects are thinking in their designs!!!! Keep up the great work my friend!!!! I love watching your videos and I always do!!!!
I am no from your job field, but your videos are really interesting. :D I would recommend to think about start offering consultancy work to manufacturers when they have issues or in pre production/ development phase.
It’s been my experience that there’s a basic level of neglect with respect to restaurant working equipment that doesn’t have immediate impacts on health inspections.
I can confirm, as a Crew Member of a coffee-and-donut chain, that equipment is always kept barely-compliant and marginally functional, and not one extra penny will be spent on repairs or PM.
Where a family member works, if the pans are taken out, they put cling wrap over the chilled tray area & put in these sacks that are similar to a first aid cold pack to simulate the pans full of stuff under the cling wrap. They also vacuum the coils of all of their top access units as part of their daily closing with a nylon brush attachment. I have seen the units myself & I saw they have a secondary air path for the condenser in case the main louvered panel gets obstructed. Local health dept records show they don't even put food in those units if they have issues, so the HVAC techs get open access to the whole thing without having to stop & ask to have the food pulled. I know taking care of this equipment can mean the kitchen is down or the salad bar or sandwich counter is closed or something, but it's better to have it closed than people getting sick or the equipment continue to degrade.
Are you using silfos? That's not sweating, IMO, that's brazing. Why no wet rag? Are you flowing nitrogen? Also curious why you need to tap to fit after heating. Personally, I use an expander tool to shape the tubing / pipe and fit up before heating. I like how you prioritize tasks in the interest of efficiency to 'keep moving'. Your customers are well served.
Yes, they mostly get murdered but that's mostly depends on simple maintenance ,at least every 6 months or better 4 months. I always did a minimum of every 6 months worth a half hour of cleaning for ever new installation for each new installation I did. That was part of the installation price. I never billed them for that time as they paid for it up front. They forgot about it and made them very happy when I showed up for "free."
lol. you need a short ratcheting angle bit driver. a 1/4" hex service wrench and short 1/4 hex bits could work, but probably no way to keep them in place. many places had/sold them at one time, not frequently used tools, but great when needed!
I have never worked on AC systems but what I have picked up is that most recommends to purge with nitrogen while soldering AC lines. It did not look like you did that here, is that not needed?
I had self contained units that drew air over the compressor on the bottom first, then up on the bottom of the condenser. Always had plugged up condensers, so the compressors always ran super hot, hence the box never getting to temp. I got fed up with them so I replaced the evap coils, and ran lines to a new condensing unit placed on top of four door reach ins next to them. Plenty of air for the condensers, easy to clean now, and the box temps held to what they were set for.
thats also why i started watching, because the automotive guys are pretty clueless when it comes to refrigeration. I am shure at this point nearly every vehicle has a contaminated ac system.
Wonder what is the causing the sensing bulb on the second evaporator to be corroded so much more than the one on the other evaporator and it looks like it is mostly on the capillary tube of the sensing bulb and I couldn't see it on the evaporator or refrigerant lines and why's that defrost clock in the drawer being used instead of the controller just a couple of my observations great videos diagnosing why compressor failed
For such an expensive piece of equipment you would think the designers would have made it more maintenance friendly. They need to have you on their quality department
That expensive Cold Rail system came from the manufacturer with the TXV bulbs loose like that??? Must of been made on a Monday or a Friday... Fantastic video dude!
15:34 - Is that sightglass having some sorta color changing indicator inside that shows how much moisture is in the system? But if it does, I'm not quite sure which part that is.
@@HVACRVIDEOS - I guess it's that part in the center that's the moisture indicator, in fact I wondered what that part's doing in other sightglasses with the color chart on the side of them so I didn't notice it. Likewise, that part in this one in the video looks black(ish blue), I guess that confused me. That's actually pretty neat.
@@HVACRVIDEOS - Ok, I kept wondering on what that center piece in the sightglasses are for, so far it evaded me that that's a moisture indicator. And in this one first it looked just black to me, now I see that it is deep blue. Sometimes it's better to ask Google first. Lol.
Those are just rebadged and painted orange for Trane. If you do supermarket refrigeration and stumble across a Copeland screw compressor, it is really a Bitzer. They just paint them black and change the label.
Nice vid, much appreciated! Is flowing nitrogen while brazing the system back together and pressure testing, only done in air conditioning or did I miss this. Couldn’t imagine attempting to evacuate straight after dropping in a new comp and drier
It seems that solid pipes are used to connect the sliding draw to the rest of the refrigerated cabinet, but how does that work? Wouldn't the pipes get kinked or fatigued after only a few uses of the sliding draw? (I'm not a HVAC expert, though I do find it very interesting. I considered becoming a HVAC technician but working in the middle of summer on roofs and inside hot attics would not be good for me, I am not very tolerant of the heat. Sort of ironic that heat is the reason I can't make cooling systems, right?)
Feel free to vent in your videos, you're human and I think many of us, even those not in this industry can sense the frustration too! I have had many moments like that, and sometimes a good vent is all you need to move forward.
One thing that will give a person tunnel vision is to blame the customer. I used to be a little bad about that, until I got sick of making free return calls after I found the real issue. I can't charge them for another trip, it's my fault. But putting the trashcan in front of it could cause problems. I think I'd add a high pressure cutout and timer..
those push in mc connectors are supper easy to remove, I take a small t stat flathead and just pop the ring off the connector then they come right out and you just put them back on. no need to depress those tangs.
Well, Chris, when I get frustrated with customer antics and non-existent manufacturer quality control, I keep telling myself that every day, I’m one day closer to retirement. That every day represents pensionable earnings. Heavy drinking helps. 😂
3:57 isn’t removing the filter drier going to expose the system to air since there are open pipes? And moisture? Also be careful with that torch you could burn yourself! - Riley
You know, I was thinking about this “Compressors don’t go bad they get murdered” quote that we all like to repeat so much. Is it actually true? Everything that is manufactured can have manufacturing defects. I know that early compressor deaths can usually be traced to a system problem, but Copeland’s sh*t stinks too. The quote is useful for most diagnostic purposes, but probably shouldn’t treat it like a divine law of the universe. Sometimes the compressor might just suck.
I swear, we are to the point we are going to have to qc our equipment before we even install them, damn 3 loose sensing bulbs on a brand new unit. Thats the kind of crap that pisses me off enough to switch manufacturers. And Fuggin LG compressors hate them with a passion.
Since QC has become questionable with any new install I try to check things like wire connections, bulb straps, loose bolts- prevent pre mature failures
Trying to get customers not to do things can be like you're pulling teeth, also equipment not being used to manufacturers recommendation is also a problem. Always look forward to seeing these videos. My wife says when I'm watching them oh it's the fridge guy
Lol, the fridge guy
@@HVACRVIDEOS yeahy wife can be quirky like that lol
When my wife is in the other room and hears him talk, she has more than once asked "Is that Tom Hanks talking".
Just replaced an axial fan for cooling the boards and gas valve for a Vulcan oven that is being operated at maximum temperature all the time greater than 500°
I showed the management that the wire connectors are beginning to crumble if you even look at them they like to keep their cast iron ready to go so that everything sizzles when it served. I reminded them that even at 400°. It will be less stress for the components and still be almost 200° of above boiling.
@@HVACRVIDEOS You should make t-shirts with “The Fridge Guy” on it
Yea, you nailed the cause of the dead compressor valve.
Loose TXV bulbs will do it in every time. Bulbs in incorrect positions will do it too. It's one of the reasons I hate digital probes in TXV applications.
Them bulbs need to be tight and secured on the proper line
34:28 shows why every installer needs to do some service work
Nice bit of troubleshooting on this one. Like you would say, we don’t just replace a compressor & walk away. That intermittent flood back would have surely killed the next one. Like I learned from your videos, you got to be relentless & dig & leave no rock unturned.
The amount of food debris on the side of that table is very telling about how they take care of everything.
I work on similar equipment at jimmy johns and subway. Doing this while they are making subs. You either stay there and get food all over you and your stuff or get up everytime a customer comes up. Not a good time
Same with MOD pizza and chipotle
yummy, nothing like them serving warm spoiling food overtop the poor service tech. 🙄
When ever possible I try to get them to shut the line down, move the equipment or I'll try and schedule service for the slow part of the day
@@HVACRVIDEOS oh I agree but certain restaurants are “too busy” to do that
I just graduated from an hvac program. Im doing commercial installation at a government secure facility (cant say where) and doing food service refrigeration on the weekends. Got an Alto Shaam blast freezer on auction and it was a basket case. Almost done rehabbing it to sell, but im struggling with keeping comp superheat stable from hot pull down to 0 deg. Learning a ton though
The CIA would like to know your location lol
Is the freezer used to store Alien bodies or UFO parts ?
@@HVACRVIDEOS If i told you, id have to detain you indefinitely.
Jk, I just dont wanna doxx myself.
Hell of a good job figuring it out Chris...had to bust out the Magnum PI skills on that one. As for the compressor manufacturer who makes less than desirable comps.....the one and only LG.
Yep
Yep, they are
Like
Garbage
@@HVACRVIDEOS Carrier is using LG in some package units, the noise reverberates through the whole unit and into the ductwork. Garbage.
@@tedgerstenslager2949 LG ? Junk I'm hearing even in home top end refrigerators ..
LG is the name came to my mind first.
Yep
As soon as he said Copeland knock off, I thought LG as well lol.
Yeah absolute garbage has done dozens of them under warranty for residential carrier units.
@@DSE8991 exactly what I thought 😆
@@HVACRVIDEOS 😮
I have seen some poor refrigeration systems in beautiful stainless coolers with cooling rails, and they were mostly undersize or oversize. Your idea for an accumulator is exactly what many oversize units need because start up frequency and working loads are all over the place. The undersized refrigeration units just run so hot that the lifespan is 1-2 years. The warranty covers the first compressor, but not the second. Condensers are often too small for the load because they wanted to keep it compact. Oil breakdown due to high condensing temperatures clogs everything. Corrosion on some copper but not other copper is often from different grades (Alloy) of copper. Made in China components can run the gamut of poor to good. Appearance when new is deceiving.
Chris. This week we had a brand new mechanic working with us who took on a 290 unit, I asked him if he was familiar and competent to deal with it, unfortunately he made a mistake had a very strong flame out, burning his hand and fingers pretty bad, after making sure he was ok then chewing him out for about 20 min, his homework was to watch several of your videos while he was off work. Your training technique and attention to detail was something I wanted him to understand, I hope when “if” he comes back he’s learned from your videos how important big picture really is!
What caused the flame out ?
He didn’t purge the system AT ALL, it was still full of flammable gas, he recovered but didn’t purge, the residual gas lit up like a nice butane torch or so I was told. (I wasn’t there as I don’t do much field work now) the mechanic (tech) and the helper he had with him luckily had taken the unit outside. The helper told me after that he had said, “I think you need to purge the gas out of this before you take the lines off” he said next thing he knew he saw a fire ball and the kid was holding his hand. As I say this is all second hand information but after seeing his injury he definitely make a very big mistake
Surley he needs ticket to work with flammable refrigerants
In the uk you get them
@@robgraham1204 it in the land of the free
@@ni_wink84you don’t need to recover 290, is it even safe to run it through a reclaim machine?
I made a ton of money offering 1 month, quarterly or 6 month preventive maintenance services.
Nearly all of them accepted any of the contracts. Pizza joints would go monthly to blow out the condensers on pizza prep tables due to flour.
Pro tip the dishwasher tray are great to slide the condinsing tray onto it
C pans r life
Nice
After watching you work for the past few years Im finally switching over to commercial. Residential and suck it.
How do you like the change ?
@@HVACRVIDEOS all I’m waiting on is my background check. Once I get cleared it’s game on. My present boss is shafting me real hard. I’m switching companies for the better of me and my family. If you treat the employe good he sticks around. Treat him like shit he will leave.
I felt that frustration in my core when you called the manufacturer a dumbass 😂
Lol
The salad well always flood back as there are a static coil with no evapfans they usually have a hinged top as well as the containers should be in to hold the cold in and the heat out
Thank you for the video, you boosted my confidence a lot bc I understood every single thing you were talking about the entire time. It was awesome how there wasn’t anything that I didn’t know what it was/ what you were talking about. I’m a student atm I’m halfway done w/ my EPA done already bc I wantsd to understand the whole refrigeration cycle better. I know it like the back of my hand now. This is my life, I’m so excited to get out in the field.
This was my life!!!! I absolutely love your videos. I asked about duct detectors a bit ago. Anyway you should do more of this. This keeps the in the trenches guys better informed. There is no one doing this. It shows how not on the roof is like.
Thanks bud
That's wild you get the copper that hot when brazing. It's so red
You’re 100% right, compressors don’t just go bad. Just two weeks ago I diagnosed three destroyed eight cylinder recip Bock compressors on a big chiller. At three years old and slightly too much capacity for its heat load the chiller had multiple slight issues from the manufacturer like a too little internal heat exchanger to raise superheat for R290, too big EXV, a heat reclaim system that probably lowered liquid enthalpy too much for it to properly superheat the suction gas, that combined into three compressors getting liquid refrigerant and completly destroying itself. Like connecting rods being in the wrong cylinder and piston scraps littering the oil pan.
Was this chiller custom built for the application?
@@HVACRVIDEOS kinda. The chiller is for a medium sized butchers shop and the customer claimed a way bigger heat load during planing than what he actually needed. The compressors are load regulated via suction canal solenoid valves which the manufacturer claimed would work perfectly (which it initially did) but the long hours running medium and low load must have screwed with the superheat adjustment. Atleast that’s the only way I can explain this massive damage this shortly after install and with the manufacturer doing the maintenance the first two years due to an extended warranty.
Your video reminds me of red-tags I would see on returned compressors from repair. They were so fed up with seeing so many compressors at the repair place, the tags basically read: These compressors don't go bad, please check something else. (Old V-twin, piston, cast-iron compressors.
I work in a very large truck fleet and watching these videos make me want to start learning about our mobile refrigeration. I got my 609 a while ago and I do want to get my 608 class II but sadly I work overnight and I don't believe I will get the training to perform any refrigeration work.
It can be a very rewarding industry if it's something you want to really pursue
I have, going on, 7 years working on Thermoking and Carrier trailer units. I prefer Thermoking for the simplicity.
I work on very similar systems, the static coil we usually run off pressure also we make sure we have a suction accumulator fitted in so when the static coil runs on its own.
Also that receiver looks quite small like u said
43:38 did you ever find out why the gas had escaped? Or did it arrive empty?
I can't even imagine why the customer would give you any flak. You went above and beyond, did an stellar job and.... 2 hours? To solve all that on the second day? If I were the customer I would be thanking God for sending me a master technician.
I appreciate that
i like to use nu-calgon thermo trap to protect driers and any paint from heat. give it a look if you havent used it before, stuff works great
Good idea, keeps that paint nice and bright
3:50 (great point you made in the video) 💯 great video buddy
Thanks
Im a DIY unlicensed fella, I do all of my own stuff because I feel like no one wants it to work and last like YOU the owner does. By no means am I as skilled as you with that torch!!! That was clean! Can I ask why you didnt purge with nitrogen? I always purge because "Thats how they do it in the factory" This is my first time here so forgive me if youve explained it. You seem to know your stuff and give off absolute pro vibes but the lack of nitrogen killed me.
Chris you are absolutely the best!! I literally laughed out loud and had tears in my eyes when you showed your irritation and frustration with the manufacture concerning the TXV sensing bulb strap location and I totally get it, I know what you mean and I can definitely relate, I work on refrigeration and HVAC equipment with my employer as well and sometimes I can't understand what the engineers or architects are thinking in their designs!!!! Keep up the great work my friend!!!! I love watching your videos and I always do!!!!
Thanks bud
@@HVACRVIDEOS You're quite welcome, man I feel your pain!!! I really do, I see it all too often as well!!!
I am no from your job field, but your videos are really interesting. :D I would recommend to think about start offering consultancy work to manufacturers when they have issues or in pre production/ development phase.
I appreciate that
Wow very nice work. Great job man very meticulous and very thorough as always.
It’s been my experience that there’s a basic level of neglect with respect to restaurant working equipment that doesn’t have immediate impacts on health inspections.
I can confirm, as a Crew Member of a coffee-and-donut chain, that equipment is always kept barely-compliant and marginally functional, and not one extra penny will be spent on repairs or PM.
@@dashcamandy2242 heard that
@@dashcamandy2242exactly
Awesome video Chris! I always like to see your installation and troubleshooting processes. 👍🏻👍🏻👍🏻
Thanks bud
My entire career I had to work in those same conditions as the video you posted. Man I feel your pain and frustration
Thanks bud
Where a family member works, if the pans are taken out, they put cling wrap over the chilled tray area & put in these sacks that are similar to a first aid cold pack to simulate the pans full of stuff under the cling wrap. They also vacuum the coils of all of their top access units as part of their daily closing with a nylon brush attachment. I have seen the units myself & I saw they have a secondary air path for the condenser in case the main louvered panel gets obstructed. Local health dept records show they don't even put food in those units if they have issues, so the HVAC techs get open access to the whole thing without having to stop & ask to have the food pulled. I know taking care of this equipment can mean the kitchen is down or the salad bar or sandwich counter is closed or something, but it's better to have it closed than people getting sick or the equipment continue to degrade.
Are you using silfos? That's not sweating, IMO, that's brazing. Why no wet rag? Are you flowing nitrogen?
Also curious why you need to tap to fit after heating. Personally, I use an expander tool to shape the tubing / pipe and fit up before heating.
I like how you prioritize tasks in the interest of efficiency to 'keep moving'. Your customers are well served.
6:30 no heatblocking compound today?
Everyone does things differently I pull from one side and monitor microns on the other side this gives me peace of mind that my vacuum is true.
Great job Chris thank you for sharing your knowledge I learned so much from you over the years.
I appreciate that
I have no know if you are talking about LG compressors regarding "those" junk comps lol
Love the vids, keep going, my man
@4:10 oh noez! Call the health department! I'll never eat there! Etc. Etc.
lol
27:10 I found the manual for the thermostat controller.
Out of curiosity, why do the drier first? I was always taught to do drier last… just one of those things I never questioned
35:13 try to get you a 5-11 screw driver, you can use one of the sides to remove those nuts for the txv strap,super easy
Thanks for the info
Yes, they mostly get murdered but that's mostly depends on simple maintenance ,at least every 6 months or better 4 months.
I always did a minimum of every 6 months worth a half hour of cleaning for ever new installation for each new installation I did.
That was part of the installation price. I never billed them for that time as they paid for it up front.
They forgot about it and made them very happy when I showed up for "free."
lol. you need a short ratcheting angle bit driver. a 1/4" hex service wrench and short 1/4 hex bits could work, but probably no way to keep them in place.
many places had/sold them at one time, not frequently used tools, but great when needed!
I got something like that around here somewhere
I would design the cold rail light to be green for on, red for off, and amber or some other color like pink for defrosting.
I have never worked on AC systems but what I have picked up is that most recommends to purge with nitrogen while soldering AC lines. It did not look like you did that here, is that not needed?
Hopefully that manufacturer watches this video. Those loose txv would make me furious too. We already have to deal with thin coils.
Well see if they respond
I had self contained units that drew air over the compressor on the bottom first, then up on the bottom of the condenser. Always had plugged up condensers, so the compressors always ran super hot, hence the box never getting to temp. I got fed up with them so I replaced the evap coils, and ran lines to a new condensing unit placed on top of four door reach ins next to them. Plenty of air for the condensers, easy to clean now, and the box temps held to what they were set for.
Sometimes you have to do some in the field engineering
Necessity is the mother of invention.
oddly enough, i just figured out how to fix the AC on my 2006 Kia :) Thank you!
thats also why i started watching, because the automotive guys are pretty clueless when it comes to refrigeration. I am shure at this point nearly every vehicle has a contaminated ac system.
Is there a reason you didn't use heat shield compound when you soldered in the drier?
Not a specific reason no, I will discuss this a bit more though on my livestream Monday afternoon. Feel free to stop in and join the conversation.
It’s a good day then this guy uploads! Love your videos man keep up the good work💪
Thanks bud
I have put condensing units on roof in situations kitchen causing dirty condenser or difficult to work on
Great job Chris........
Thanks
@Chris, I had the hunting superheat multiple times - Tightened TXV sensing bulb. Hunting is gone.
Wonder what is the causing the sensing bulb on the second evaporator to be corroded so much more than the one on the other evaporator and it looks like it is mostly on the capillary tube of the sensing bulb and I couldn't see it on the evaporator or refrigerant lines and why's that defrost clock in the drawer being used instead of the controller just a couple of my observations great videos diagnosing why compressor failed
For such an expensive piece of equipment you would think the designers would have made it more maintenance friendly. They need to have you on their quality department
He already is! They just don't know it yet...
@@donalddayton1818lol
Can you share some prices?
So we can get a ballpark about it.
Yes , Embracco makes the small fractional compressors for Copeland , the “A” series and the “R” series.
Iove you Chris and your Video are Educational for me
That expensive Cold Rail system came from the manufacturer with the TXV bulbs loose like that???
Must of been made on a Monday or a Friday... Fantastic video dude!
probably rattled to death in shipping in zag-zags all over the USA and abroad. it's no wonder any of it ever works!
i worked on clayton homes they are all made on monday and friday
Thanks bud
Hi Chris
Thanks for the great video
And great content
Thanks for watching
15:34 - Is that sightglass having some sorta color changing indicator inside that shows how much moisture is in the system? But if it does, I'm not quite sure which part that is.
The sightglass does have a moisture indicator inside- not sure what you mean when you say "I'm nit quite sure which part that is" ?
@@HVACRVIDEOS - I guess it's that part in the center that's the moisture indicator, in fact I wondered what that part's doing in other sightglasses with the color chart on the side of them so I didn't notice it. Likewise, that part in this one in the video looks black(ish blue), I guess that confused me. That's actually pretty neat.
@@HVACRVIDEOS - Ok, I kept wondering on what that center piece in the sightglasses are for, so far it evaded me that that's a moisture indicator. And in this one first it looked just black to me, now I see that it is deep blue. Sometimes it's better to ask Google first. Lol.
Hey Chris, Alliance has the same model numbers as Copeland...found a DOA in a Trane rtu...
On another note...the hat is awesome!...thanks
Awesome, thanks
Those are just rebadged and painted orange for Trane. If you do supermarket refrigeration and stumble across a Copeland screw compressor, it is really a Bitzer. They just paint them black and change the label.
I run my cold rails the same temp as the box. Not sure if that’s right or not.
Depends on the application I suppose
Nice vid, much appreciated!
Is flowing nitrogen while brazing the system back together and pressure testing, only done in air conditioning or did I miss this. Couldn’t imagine attempting to evacuate straight after dropping in a new comp and drier
It seems that solid pipes are used to connect the sliding draw to the rest of the refrigerated cabinet, but how does that work? Wouldn't the pipes get kinked or fatigued after only a few uses of the sliding draw?
(I'm not a HVAC expert, though I do find it very interesting. I considered becoming a HVAC technician but working in the middle of summer on roofs and inside hot attics would not be good for me, I am not very tolerant of the heat. Sort of ironic that heat is the reason I can't make cooling systems, right?)
How do you bill in all the return trips not just your labor on site right ?
It's a bit complicated at times
you said they “need the right pans” for the cold rail. is it the pans? or is that like a steam table that’s supposed to have some liquid in it?
It's the pans, they are not the correct size
Great video. Thank you for sharing
Thanks for watching
Them damn LG compressors.
If I remember right manual that comes with TXV usually doesn’t let you install TXV upside down?
I will try and discuss this a bit more on my upcoming live stream Monday afternoon, stop in and join the conversation.
Hey Chris what tip at you using on your torch. Nice work.
I enjoy your videos. I see you like using a large flame when soldering. I prefer a smaller hotter flame
I switch it up from time to time
I feel like anything with a cold rail should have a suction accumulator. And that could help with a flood back
I guess I should have watched the video all the way through 😅
@@TheNolesfan94lol
Looks like frosty went home. Someone needs to invent a better sense bulb clamp -- but how do you make it armature proof.
Was that all roach crap on that electrical box for the compressor?
I remember this quote back in the day from Copeland. Actually was a cool video.
Thanks Don!
So when you're tapping the new line back into the old isn't there a chance solder could be forced into the new line and restrict flow?
Feel free to vent in your videos, you're human and I think many of us, even those not in this industry can sense the frustration too! I have had many moments like that, and sometimes a good vent is all you need to move forward.
I usually save these moments of frustration for Friday night when I do a live stream called HVAC OVERTIME with my buddies,,,
Good day, does a custom equipment like this come with a manual?
I could only wish, it took me a few minutes to figure everything out the first time I worked on it.
One thing that will give a person tunnel vision is to blame the customer. I used to be a little bad about that, until I got sick of making free return calls after I found the real issue. I can't charge them for another trip, it's my fault. But putting the trashcan in front of it could cause problems. I think I'd add a high pressure cutout and timer..
those push in mc connectors are supper easy to remove, I take a small t stat flathead and just pop the ring off the connector then they come right out and you just put them back on. no need to depress those tangs.
Easy peezy
Great job Chris.
Thanks
Would you still consider the receiver undersized?
Why no wet rag compound on new drier?
You're not talking about the Danfoss scroll, are you?
"this guy is satisfying right here" best quote of the vid 😅
Lol
Another great quote for a t-shirt
10/10 title for a 10/10 vid
Well, Chris, when I get frustrated with customer antics and non-existent manufacturer quality control, I keep telling myself that every day, I’m one day closer to retirement. That every day represents pensionable earnings.
Heavy drinking helps.
😂
Lol
3:57 isn’t removing the filter drier going to expose the system to air since there are open pipes? And moisture? Also be careful with that torch you could burn yourself! - Riley
🤭
You know, I was thinking about this “Compressors don’t go bad they get murdered” quote that we all like to repeat so much. Is it actually true? Everything that is manufactured can have manufacturing defects. I know that early compressor deaths can usually be traced to a system problem, but Copeland’s sh*t stinks too. The quote is useful for most diagnostic purposes, but probably shouldn’t treat it like a divine law of the universe. Sometimes the compressor might just suck.
Giant video I love it 🎉
Thanks bud
what tip size are you using?
I think I was using a #2 that day
I swear, we are to the point we are going to have to qc our equipment before we even install them, damn 3 loose sensing bulbs on a brand new unit. Thats the kind of crap that pisses me off enough to switch manufacturers. And Fuggin LG compressors hate them with a passion.
Since QC has become questionable with any new install I try to check things like wire connections, bulb straps, loose bolts- prevent pre mature failures
Have you ever thought about using that wet rag putty stuff on the end of the driers when you braze them
I have, I use that quite often
Had to laugh WHATS on my head, oh, it's a fly
In your mind thought it was a roach
Are you referring to LG compressors?
Maybe
Carlyle compressors?
I’m not a fan of lg compressors I have changed so many this year it’s ridiculous