I love the honesty. I bet many of us HVAC mechanics have flared a hole in a 3/8 inch line. For me, couple times in last 26 years and both times on a liquid line filter dryer.
Pressure testing chillers taught me all about pressure drops due to temperature! Fill it to 200lbs at the end of the day, let it sit overnight, and the next morning its 20 lbs lower! Of course its also 30 degrees cooler. let it sit till when you filled it the previous day, and its back up to 200lbs! Had me searching everywhere for a leak first time that happened. Lol
I love how there's an automated energy management system, but it's not upkept at all and half offline. I know they want to replace it but it's just ironic.
The big irony is that an improperly working energy management system can cause the system to use more energy than a system without one. My belief is that all commercial HVAC systems should be required to have yearly inspections and be certified for proper functionality. While business owners would cry, the energy savings alone would save the cost of inspection and repair, not to mention the cost savings of not having so many catastrophic failures from lack of maintenance. The richest business owner I ever met, said that the biggest mistake most companies make is that they fail to understand that they are in business to make money, not save money.
I was once hired to take some property photos for a real estate company. Got there & was working on tidying it up... trash cans, garden hose, a little litter, closing gates & all; then when setting up my tripod a cop appears. Yep, they'd given me the wrong address. Actually cool heads prevailed... luckily it was a cop in possession of elementary (but limited) communication skills[1] & nice home owner... we had it sorted out in no time. Cool videos, Thanks! [1] So rare these days.
Honeywell employee here with a bit of knowledge on the whole Honeywell and Resideo thing. We as Honeywell spun off all our residential and light commercial products like thermostats, air filters and fans off into their own company called Resideo in 2018. We then let them continue to use the Honeywell name because it is more known in the industry then Resideo.
Remember Abby, in this video, in this context, EMS is Energy Management Systems... not the more familiar Emergency Medical Services. Ha, oh the confusion I keep getting myself into as someone who's a volunteer Medical First Responder (In my role, I provide first response to events and community, the step before paramedics/EMS)
At the end..... you are a great teacher one that any apprentice should respect, why, you don't sow buffalo chips you admit straight up if your wrong. Wish I had a tutor like you over 40 (might be a tad more) ago. People like you are valuable for any industry they are in. Thank you love to see your mind at work along with your skills, there probably will be those that scoff but they haven't thought things through, you are one of those that pick up their pieces and the crap they leave. I'm glad I'm retired cause seen to much butt covering.
The Honeywell- resideo thing makes total sense. I have stopped using Honeywell thermostats in 2019 and switched to pro 1 because I had 4 consecutively fail and the same job(T4). Now I totally get why. 🤔
The big irony is that an improperly working energy management system can cause the system to use more energy than a system without one. My belief is that all commercial HVAC systems should be required to have yearly inspections and be certified for proper functionality. While business owners would cry, the energy savings alone would save the cost of inspection and repair, not to mention the cost savings of not having so many catastrophic failures from lack of maintenance. The richest business owner I ever met, said that the biggest mistake most companies make is that they fail to understand that they are in business to make money, not save money.
As a consultant, i have scowled at several customers over refusing $300-600/year maintenance deals I even spent a few months in court because one of them tried to withhold my bonus for exceeding targets due to a failure caused by lacking maintenance. He lost a 450k machine because he refused 0.001%/year in maintenance and tried to take that entire amount from my bonus and last month of base pay.
Add the requirement for following the Manufacturer's Required Preventative Maintenance Schedule to your Yearly Inspection Certification and these systems will become much more Energy Efficient and cheaper to run in the long run (fewer expensive repairs will be needed)...
@@HappilyHomicidalHooligan The problem is that very few people or businesses, especially restaurants, take the information from their equipment and create a maintenance program. One of my electrical apprenticeship instructors was ex-navy, and taught us the importance of doing so, especially on ships and submarines. In my local area, the electrical utilities have neglected trimming trees on the right of ways for decades, but this year they have gone hog wild due to all of the fires, deaths, and lawsuits in my state.
Great points on the nitrogen pressure temperature change you can look up a pt chart for nitrogen I have to use it all the time for what I work on always letting large systems set over night for tightness testing
Well, as far as I know, the myth that nitrogen doesn't change pressure with temperature was started by purveyors of the "fill your tires with nitrogen" scam. At least, that is where I have seen this claim before. It is, of course, utter BS, but the (very small) grain of truth in it might be that if tires are filed with humid air at warm temperatures, condensation of water vapor at low temperatures will cause a larger pressure change than would happen if the tire is filled with dry gas (whether air, nitrogen, or any other non-condensable gas). But yes folks, all gases change pressure with temperature, assuming a constant volume.
Air is a mixture of elements, large and small, which diffuse through materials at different rates, the smaller they are, the faster they diffuse. Using pure nitrogen, which is a relatively big molecule, you get slower diffusion. In addition to a smaller pressure change for the same temperature change.
Nitrogen is used in (some) tyres as it gives a predictable change of pressure compared to having a mix of gasses and who knows how much water vapour that might be in there at the time. It's nice having properties you can rely on when pushing limits in some regard
Ideal Gas Law was one of the first things covered in my high school chemistry class. Real gases actually deviate a bit from what Ideal Gas Law states, but these are pretty small differences. But any gas is going to increase in pressure and/or volume when its temperature goes up, and nitrogen behaves pretty close to an ideal gas.
but but but...my tire guy told me otherwise... i trust my tire guy... are you calling him a liar? I'm pretty sure he has a doctorate in tire pressureology...
looks like a classic boardroom living inside their vacuum discussion, "Yeah let's use this EMS system and we will save so much money" and the actual maintenance department isn't given the budget or won't pay for the maintenance of the added EMS equipment.
Can’t wait for new video 👍 Love it Got question about wireless temp probes. What would be solution for me when working on bigger equipment and dealing with 2 1/8 suction line. Temp clamps working up to 1 3/8 line. Thanks everyone
Chris another good video😉👍 I have a state of the art BAS system in 3 of my schools. We have a maintenance contract with are control company. So they give me extra thermostats and sensors. They also come 2 a month per the contract. If you have a BAS you should have a contract. Yes absolutely there is a pressure drop. Measuring hot gas discharge and liquid is a great way to show it. Nice...
You use a real hard neutral flame, intend to go with more of an oxidizing flame, double cone to avoid blow throughs, but brazing is brazing whatever works for you
It's because the tire shops that sell nitrogen filled tires construe in a way that make customers think nitrogen will not be affected by temperature, however nitrogen is just less affected by temperatures compared to compressed air.
When you were brazing the filter drier something seemed off. You heated up your brazing rod and it melted off. Then brazing the filter drier blew a hole in it. Was the torch set malfunctioning? You are awesome at brazing just not understand what happen.
It's common to bend a rod in order to make it easier to go around a fitting. The torch was too hot and held too long and that's how you burn a hole.....it happens.
My thought on orifice by flare nut is that it acts as a nozzle. Backs up liquid so nice stream of liquid flows evenly to the individual orifices pinched in coil. It might be what helped give it the 14 seer rating as it would perform better.
great stuff btw that piston does come out if u pull that beveled flare straight from body, also the nitrogen did not change the pressure it was remaining gas in system, yes nitrogen will change in pressure with temperature but the range we hvac guys deal with it is stable 40-50 degrees will not make difference
As far as the nitrogen pressure change vs temperature, those SMAN gauges actually have a compensating feature built in to deal with exactly that. Anyone still doesn't believe nitrogen changes pressure refer to page 20 of the sman380 manual "3. Attach SLT clamp to the pipe you’re going to pressurize. This temperature is used to compensate for any temperature changes between the start and end of the test. To deactivate temperature compensation, unplug or unassign SLT before starting the test; SLT will not be shown or used." I have no idea what that other piston type thing was in the liquid line, may be interesting to put some temperature clamps on either side of it. See if there is much of a temp change across it, see how much of a restriction it is actually providing? The two thoughts I had were if its to partially vaporize the refrigerant before it hits the rest of the accurator orifices? Maybe that helps with even distribution of refrigerant though the coil? Or maybe that is how they were reusing a bunch of old stock coils, maybe before the distribution header was braised on they drilled out all the pressed in orifices, and went with that single one to change it to 410 kind of like you had mentioned? Not sure..
Good to see the american refrigeration standards are comming up to match the australian regs. One question is if the thermostat wasnt sending a cooling call because of the gas leak?
absolutely right... and better him then me.. did that for a while and its the worst.. not so much the environment.. but the customers seemingly going out of their way to have trash equipment
All gases expand and contract due to the ambient temperature they are in . If that was not the case why are there safety valves built into the valves on the cylinders ? And that is true from a B tank to a Liquid tank . Have a Happy New Year .
I’ve done high pressure tests with nitrogen, 400 psi and up and then hydrostatic test for 1500 psi. And when you up that high it’s no uncommon for the pressure to climb 100 psi or so
Great channel, I find HVAC really interesting but hard to understand the whole process. Is there a online site you would recommend that explains the whole process??
Check this channel out. They have a lot of good basic educational content regarding the process of how refrigerant makes cooling possible 🤙 th-cam.com/video/VJX0LyxRV0E/w-d-xo.html
Good video. I've argued the nitrogen pressure changes more than once. People refuse to believe that temps can alter the pressure. I just ask if it doesn't effect the pressure why is there a tool to help you figure out pressure differential based on temperature change for nitrogen.
Chris do you collect on site with all these commercial accounts? Resi is super easy to, at my shop, we struggle to collect at the mom and pop restaurants, the big commercial chains, they pay 30 days later, because they have a certain pay period, ie (mcdonalds,) there’s no getting around massive chain restaurants paying same day, I just see you as a amazing mechanic, going over and above for these restaurants, wonder if you have collection issues.
These calls are frustrating so many time years even iv told customers you need to fix this or eventually I’m gonna say it’s not fixable and then you tell them there gonna be down for days and they say why are we paying you then?? Unbelievable sometimes.
I'm not sure why anyone that had gone through High School Science Class could ever think there isn't a pressure difference across an A/C Condenser since there is a Phase Change in the Refrigerant in that Condenser as it converts from gas back to liquid, the difference in densities between the two Phases alone is guaranteed to create a Pressure Difference across the Condenser...
Got a big job in trying to finish up life safety and I'm not hugely familiar with duct detectors. I have a RTS2 test station and I matched the AUX and ACC wiring from that unit to my system sensor controller but I'm missing something and have minimal paperwork for these units. How do u get my power to the test station so since apparently I'm missing something
Why did you replace the factory service valves? My guess is that they are not serviceable and since the circuit was flat it would be a good time to replace. Just curious.
I was in there so i solved a future leak.... I will discuss this live on TH-cam tonight 1/3/22 @ 5:PM (pacific) come over and check it out th-cam.com/video/2UhZaKfPILY/w-d-xo.html
Never could understand why there isn’t any wall map before you go onto the roof for the RTU location & other information. Most Supermarkets that l use to service always had wall maps all the case locations of imported information .
Anyone that tries to tell you nitrogen or any gas for that matter wont increase in pressure if the temp goes up has absolutely no idea what they're talking about. "Gas Law = If you heat a gas you give the molecules more energy so they move faster. This means more impacts on the walls of the container and an increase in the pressure. Conversely if you cool the molecules down they will slow and the pressure will be decreased." To be exact, 152 PSI of nitrogen @ 90 degrees F will go up to 153.5 PSI @ 95 degrees F. Maybe they figured out how to ignore the laws of physics 😂😂
PV = nRT where P is Pressure, V is volume, n is number of moles of gas, R is the ideal gas constant, and T is absolute (degrees Kelvin or Rankine) temperature.
not complaining or anything but it is a little funny you capped the hole you melted into the line and didnt just do that to the existing line. i understand replacing the filter dryer would have been more challenging if left in place.
It seems that you aim you torch at the pipe rather than the thicker metal of the filter when you are heating the joint for the solder. Have you tried focusing heat on the thick metal? It’s how we do with plumbing fittings - the heat transfers to the thin wall pipe and the solder whicks right into the joint.
@@Freonleon really? well just to educate you, its not "solder" its silphos, and that is a copper tube he burnt the hole in just above the dryer. so im not sure what doesnt make sense to you, but anybody in the field knows what i said
Honeywell is awesome, why, it runs my home brew cabinet to +2 -2. Yes its a really old unit but it comes from the 70's and is still totally reliable, well for my home brew :-) Tempted to go digital but why replace it for a unit that has a .5 deg accuracy. Home brew is not that fussy and the whiskey/beer it makes don't care as long as it's close. My home brew wine doesn't need it just a few cleanups and time. Your the one to blame for mentioning Honeywell but they made some awesome gear what I have is really sort after as the don't break.
I love that you show the mistakes and the failures. That you may encounter. U don't edit it out. You are real
I try my best to
I love the honesty. I bet many of us HVAC mechanics have flared a hole in a 3/8 inch line. For me, couple times in last 26 years and both times on a liquid line filter dryer.
Yes sir true that
1:00 there is nothing more permanent than a temporary fix.
That's where you're wrong buddy
A temporary problem creates by the govt. Lasts far longer
Pressure testing chillers taught me all about pressure drops due to temperature! Fill it to 200lbs at the end of the day, let it sit overnight, and the next morning its 20 lbs lower! Of course its also 30 degrees cooler. let it sit till when you filled it the previous day, and its back up to 200lbs! Had me searching everywhere for a leak first time that happened. Lol
I love how there's an automated energy management system, but it's not upkept at all and half offline. I know they want to replace it but it's just ironic.
The big irony is that an improperly working energy management system can cause the system to use more energy than a system without one. My belief is that all commercial HVAC systems should be required to have yearly inspections and be certified for proper functionality. While business owners would cry, the energy savings alone would save the cost of inspection and repair, not to mention the cost savings of not having so many catastrophic failures from lack of maintenance.
The richest business owner I ever met, said that the biggest mistake most companies make is that they fail to understand that they are in business to make money, not save money.
I was once hired to take some property photos for a real estate company. Got there & was working on tidying it up... trash cans, garden hose, a little litter, closing gates & all; then when setting up my tripod a cop appears. Yep, they'd given me the wrong address. Actually cool heads prevailed... luckily it was a cop in possession of elementary (but limited) communication skills[1] & nice home owner... we had it sorted out in no time.
Cool videos, Thanks!
[1] So rare these days.
Honeywell employee here with a bit of knowledge on the whole Honeywell and Resideo thing. We as Honeywell spun off all our residential and light commercial products like thermostats, air filters and fans off into their own company called Resideo in 2018. We then let them continue to use the Honeywell name because it is more known in the industry then Resideo.
That to me makes sense; the brand recognition is always good.
Remember Abby, in this video, in this context, EMS is Energy Management Systems... not the more familiar Emergency Medical Services. Ha, oh the confusion I keep getting myself into as someone who's a volunteer Medical First Responder (In my role, I provide first response to events and community, the step before paramedics/EMS)
Always a good day when Chris uploads a new video!
😇👍
Good idea pausing the video to explain something. Love how practical you are. Like you said "Instagram perfect".
At the end..... you are a great teacher one that any apprentice should respect, why, you don't sow buffalo chips you admit straight up if your wrong. Wish I had a tutor like you over 40 (might be a tad more) ago. People like you are valuable for any industry they are in. Thank you love to see your mind at work along with your skills, there probably will be those that scoff but they haven't thought things through, you are one of those that pick up their pieces and the crap they leave. I'm glad I'm retired cause seen to much butt covering.
Thankyou gues shering all best %aged only bai thosethey ed good
The Honeywell- resideo thing makes total sense. I have stopped using Honeywell thermostats in 2019 and switched to pro 1 because I had 4 consecutively fail and the same job(T4). Now I totally get why. 🤔
All the best in 2022 Chris,stay safe.
i love how on the first unit, the previous tech's notes are still there from over a decade ago clear as day
The big irony is that an improperly working energy management system can cause the system to use more energy than a system without one. My belief is that all commercial HVAC systems should be required to have yearly inspections and be certified for proper functionality. While business owners would cry, the energy savings alone would save the cost of inspection and repair, not to mention the cost savings of not having so many catastrophic failures from lack of maintenance.
The richest business owner I ever met, said that the biggest mistake most companies make is that they fail to understand that they are in business to make money, not save money.
Yes, sometimes you have to spend money in order to save money
As a consultant, i have scowled at several customers over refusing $300-600/year maintenance deals
I even spent a few months in court because one of them tried to withhold my bonus for exceeding targets due to a failure caused by lacking maintenance. He lost a 450k machine because he refused 0.001%/year in maintenance and tried to take that entire amount from my bonus and last month of base pay.
Add the requirement for following the Manufacturer's Required Preventative Maintenance Schedule to your Yearly Inspection Certification and these systems will become much more Energy Efficient and cheaper to run in the long run (fewer expensive repairs will be needed)...
@@HappilyHomicidalHooligan
The problem is that very few people or businesses, especially restaurants, take the information from their equipment and create a maintenance program. One of my electrical apprenticeship instructors was ex-navy, and taught us the importance of doing so, especially on ships and submarines. In my local area, the electrical utilities have neglected trimming trees on the right of ways for decades, but this year they have gone hog wild due to all of the fires, deaths, and lawsuits in my state.
Great points on the nitrogen pressure temperature change you can look up a pt chart for nitrogen I have to use it all the time for what I work on always letting large systems set over night for tightness testing
Well, as far as I know, the myth that nitrogen doesn't change pressure with temperature was started by purveyors of the "fill your tires with nitrogen" scam. At least, that is where I have seen this claim before. It is, of course, utter BS, but the (very small) grain of truth in it might be that if tires are filed with humid air at warm temperatures, condensation of water vapor at low temperatures will cause a larger pressure change than would happen if the tire is filled with dry gas (whether air, nitrogen, or any other non-condensable gas).
But yes folks, all gases change pressure with temperature, assuming a constant volume.
The atmosphere also contains a good bit of nitrogen to being with.
Air is a mixture of elements, large and small, which diffuse through materials at different rates, the smaller they are, the faster they diffuse. Using pure nitrogen, which is a relatively big molecule, you get slower diffusion. In addition to a smaller pressure change for the same temperature change.
I always found it funny that no-one ever realizes that regular air is already almost 80% nitrogen, lol.
@@brainndamage Give that man a cigar! 😉😊🤣
Nitrogen is used in (some) tyres as it gives a predictable change of pressure compared to having a mix of gasses and who knows how much water vapour that might be in there at the time. It's nice having properties you can rely on when pushing limits in some regard
There is a thing called "Ideal gas law". The person telling Nitrogen does not change pressure to temperature change lacks the knowledge of this law.
And that can't beak that law if they wanted to, I'm always amazed at people who try to break the laws of physics.
@@davidnull5590 falls under laws of thermodynamics
Ideal Gas Law was one of the first things covered in my high school chemistry class. Real gases actually deviate a bit from what Ideal Gas Law states, but these are pretty small differences. But any gas is going to increase in pressure and/or volume when its temperature goes up, and nitrogen behaves pretty close to an ideal gas.
but but but...my tire guy told me otherwise... i trust my tire guy... are you calling him a liar? I'm pretty sure he has a doctorate in tire pressureology...
@@riverae53 which is a branch of physics.
I like how you show how you spatch a hole shut with braise, really neat to see a nice view of it
surprised he didnt cut it out and put new 3/8 pipe in.
I would LOVE to see a video of chris working on a split system.
I've learned over the years put your eyes on it figure it out you did the right thing customer isn't always right
Thank you Chris! Best wishes and nice Christmas holidays!
looks like a classic boardroom living inside their vacuum discussion, "Yeah let's use this EMS system and we will save so much money" and the actual maintenance department isn't given the budget or won't pay for the maintenance of the added EMS equipment.
Happy New Year!
Thank you for the video!
Great upload , Chris !
Happy New Year Chris. All the best to you and yours in 2022.
love the videos bro I wait all the time to see when your new ones out
Finally im early and nice video was it frustrating finding out you are on thr wrong unit
Happy New Year to you and your family
Can’t wait for new video 👍 Love it
Got question about wireless temp probes. What would be solution for me when working on bigger equipment and dealing with 2 1/8 suction line. Temp clamps working up to 1 3/8 line. Thanks everyone
Keep up the good work. Your video are 100% helpful and respect the honesty always
Thanks for. All the. Videos Chris. And. Happy. New year. 2022
I was literally just wondering when a new video was going to drop :D Happy new year!
Happy New Year Chris.
Good job Chris 👍,Happy New Year🎊
Chris another good video😉👍 I have a state of the art BAS system in 3 of my schools. We have a maintenance contract with are control company. So they give me extra thermostats and sensors. They also come 2 a month per the contract. If you have a BAS you should have a contract.
Yes absolutely there is a pressure drop. Measuring hot gas discharge and liquid is a great way to show it. Nice...
Basic physics says that any gas will, when heated, expand (all other things being equal)
wishing you a lot of easy to do TH-cam contents for the new coming year! Happy New Year from Romania! 🎉😇👍
You use a real hard neutral flame, intend to go with more of an oxidizing flame, double cone to avoid blow throughs, but brazing is brazing whatever works for you
It's because the tire shops that sell nitrogen filled tires construe in a way that make customers think nitrogen will not be affected by temperature, however nitrogen is just less affected by temperatures compared to compressed air.
That was helpful in my everyday work habits..thank you for checking the pistons and explaining it....
Happy New year Chris
Happy New Year!
Thank you, Chris for your hard work and dedication to the channel. Wishing you and your beautiful family a Happy New Year!
Happy New Year 🎆🎊🎈
When you were brazing the filter drier something seemed off. You heated up your brazing rod and it melted off. Then brazing the filter drier blew a hole in it. Was the torch set malfunctioning? You are awesome at brazing just not understand what happen.
It's common to bend a rod in order to make it easier to go around a fitting. The torch was too hot and held too long and that's how you burn a hole.....it happens.
My thought on orifice by flare nut is that it acts as a nozzle. Backs up liquid so nice stream of liquid flows evenly to the individual orifices pinched in coil. It might be what helped give it the 14 seer rating as it would perform better.
great stuff btw that piston does come out if u pull that beveled flare straight from body, also the nitrogen did not change the pressure it was remaining gas in system, yes nitrogen will change in pressure with temperature but the range we hvac guys deal with it is stable 40-50 degrees will not make difference
Nothing more permanent than a temporary fix 🤣
As far as the nitrogen pressure change vs temperature, those SMAN gauges actually have a compensating feature built in to deal with exactly that. Anyone still doesn't believe nitrogen changes pressure refer to page 20 of the sman380 manual "3. Attach SLT clamp to the pipe you’re going to pressurize. This temperature is used to compensate for any temperature changes between the start and end of the test. To deactivate temperature compensation, unplug or unassign SLT before starting the test; SLT will not be shown or used."
I have no idea what that other piston type thing was in the liquid line, may be interesting to put some temperature clamps on either side of it. See if there is much of a temp change across it, see how much of a restriction it is actually providing? The two thoughts I had were if its to partially vaporize the refrigerant before it hits the rest of the accurator orifices? Maybe that helps with even distribution of refrigerant though the coil? Or maybe that is how they were reusing a bunch of old stock coils, maybe before the distribution header was braised on they drilled out all the pressed in orifices, and went with that single one to change it to 410 kind of like you had mentioned? Not sure..
Good to see the american refrigeration standards are comming up to match the australian regs. One question is if the thermostat wasnt sending a cooling call because of the gas leak?
The reason i am asking is because i hasve had a similar issue myself
Good for you, for being willing to do restaurant work. Someone has to.
absolutely right... and better him then me.. did that for a while and its the worst.. not so much the environment.. but the customers seemingly going out of their way to have trash equipment
All gases expand and contract due to the ambient temperature they are in . If that was not the case why are there safety valves built into the valves on the cylinders ? And that is true from a B tank to a Liquid tank . Have a Happy New Year .
I’ve done high pressure tests with nitrogen, 400 psi and up and then hydrostatic test for 1500 psi. And when you up that high it’s no uncommon for the pressure to climb 100 psi or so
Great channel, I find HVAC really interesting but hard to understand the whole process. Is there a online site you would recommend that explains the whole process??
Check this channel out. They have a lot of good basic educational content regarding the process of how refrigerant makes cooling possible 🤙
th-cam.com/video/VJX0LyxRV0E/w-d-xo.html
Good video. I've argued the nitrogen pressure changes more than once. People refuse to believe that temps can alter the pressure. I just ask if it doesn't effect the pressure why is there a tool to help you figure out pressure differential based on temperature change for nitrogen.
A global conspiracy probably?
Keep the torch moving you will not get line burn outs!
Chris do you collect on site with all these commercial accounts? Resi is super easy to, at my shop, we struggle to collect at the mom and pop restaurants, the big commercial chains, they pay 30 days later, because they have a certain pay period, ie (mcdonalds,) there’s no getting around massive chain restaurants paying same day,
I just see you as a amazing mechanic, going over and above for these restaurants, wonder if you have collection issues.
I will discuss this live on TH-cam tonight 1/3/22 @ 5:PM (pacific) come over and check it out th-cam.com/video/2UhZaKfPILY/w-d-xo.html
Thank you
i've had that happen before. hope you find the right one soon!
Cool video! Like these videos.
These calls are frustrating so many time years even iv told customers you need to fix this or eventually I’m gonna say it’s not fixable and then you tell them there gonna be down for days and they say why are we paying you then?? Unbelievable sometimes.
I'm not sure why anyone that had gone through High School Science Class could ever think there isn't a pressure difference across an A/C Condenser since there is a Phase Change in the Refrigerant in that Condenser as it converts from gas back to liquid, the difference in densities between the two Phases alone is guaranteed to create a Pressure Difference across the Condenser...
Nitrogen is more stable than air or refrigerant, but it does have a PT Relationship. That’s why it’s used in race cars tires ,etc…
Happy New Year to all
Got a big job in trying to finish up life safety and I'm not hugely familiar with duct detectors. I have a RTS2 test station and I matched the AUX and ACC wiring from that unit to my system sensor controller but I'm missing something and have minimal paperwork for these units. How do u get my power to the test station so since apparently I'm missing something
Not sure if you'll see this or even necessarily have the time to respond, but thanks in advance regardless
Why did you change the high flow schrader valves to normal ones?
Don’t worry Chris it even happens to the best of us
First time I brazed I melted a 7/8 line twice 🤣🤣 Definitely burned holes in 3/8 over the years.
How many thermostats to get to the center of a dumpster fire, 1, 2 , 3...
Lol
Why did you replace the factory service valves? My guess is that they are not serviceable and since the circuit was flat it would be a good time to replace. Just curious.
I was in there so i solved a future leak.... I will discuss this live on TH-cam tonight 1/3/22 @ 5:PM (pacific) come over and check it out th-cam.com/video/2UhZaKfPILY/w-d-xo.html
Little struggles today but got the job done
Never could understand why there isn’t any wall map before you go onto the roof for the RTU location & other information. Most Supermarkets that l use to service always had wall maps all the case locations of imported information .
nitrogen has temperature pressure changes that's "less" than most/many other gasses.
First time for me to see a three phase system with 2 contactors. Not sure how it works, but it must.
I'm gonna be taking h v a c when whenever I get back in school
did you leave space between the pipes when you soldered the dryer in?
A little proper flux helps sil-phos braze better.
Sir how to convert or compute LRA196 in tons in 3phase
HAppy new year.
What brand of burner do you use? Seems nice and need
Anyone that tries to tell you nitrogen or any gas for that matter wont increase in pressure if the temp goes up has absolutely no idea what they're talking about. "Gas Law = If you heat a gas you give the molecules more energy so they move faster. This means more impacts on the walls of the container and an increase in the pressure. Conversely if you cool the molecules down they will slow and the pressure will be decreased." To be exact, 152 PSI of nitrogen @ 90 degrees F will go up to 153.5 PSI @ 95 degrees F. Maybe they figured out how to ignore the laws of physics 😂😂
PV = nRT where P is Pressure, V is volume, n is number of moles of gas, R is the ideal gas constant, and T is absolute (degrees Kelvin or Rankine) temperature.
Ayy, Chris is human 😂
Maybe some kind of spacer between those two lines would be a good idea, or the hole will be there soon again.
was that a hole on that dryer braise joint?
Vision pro. At least you know the thing won't quit working the day after you leave. Did you set it up on wifi? 🤣
You need to start using Stay Brite 8
not complaining or anything but it is a little funny you capped the hole you melted into the line and didnt just do that to the existing line. i understand replacing the filter dryer would have been more challenging if left in place.
Every gas obeys pv = nrt.
Nice video
What’s new, I have worked on the wrong ones, and they had issues,,
flame to close new guy! gotta start somewhere. at least he is not burning the building down.
Oh I know those, a temporary fix lasts as long as it breaks and is replaced by another temporary fix, or a whole new unit
Are you running the fan in the on position when you drop stats in the return???
I would think if you don’t it will not work?
I will discuss this live on TH-cam tonight 1/3/22 @ 5:PM (pacific) come over and check it out th-cam.com/video/2UhZaKfPILY/w-d-xo.html
It seems that you aim you torch at the pipe rather than the thicker metal of the filter when you are heating the joint for the solder.
Have you tried focusing heat on the thick metal? It’s how we do with plumbing fittings - the heat transfers to the thin wall pipe and the solder whicks right into the joint.
I tape my filters together.
Who knows about the metering devise. That's Carrier for you!!!!!!!
Did you burn a hole in the tube on top of dryer and then fill it up with silphos
Looks like he burnt a hole in the copper and filled it with solder
@@Freonleon thats what i said, i just said it in hvac tech lingo
@@braintumor943you said it like you don’t know Shit lol
@@Freonleon really? well just to educate you, its not "solder" its silphos, and that is a copper tube he burnt the hole in just above the dryer. so im not sure what doesnt make sense to you, but anybody in the field knows what i said
Bro you are Sean Penns twin lol
Honeywell is awesome, why, it runs my home brew cabinet to +2 -2. Yes its a really old unit but it comes from the 70's and is still totally reliable, well for my home brew :-) Tempted to go digital but why replace it for a unit that has a .5 deg accuracy. Home brew is not that fussy and the whiskey/beer it makes don't care as long as it's close. My home brew wine doesn't need it just a few cleanups and time. Your the one to blame for mentioning Honeywell but they made some awesome gear what I have is really sort after as the don't break.
I have had the back off before asking just to confirm the problem I cannot find? No idea we did not call you opps, wrong address.