WE ARE SLOWLY CHANGING OUT ALL OUR OLD R-22 UNITS

[@reynaldos1chorizo]

the mister idea is genius! A AND it got them through the summer! I admire your attention to detail. thank you for making these videos.

[@HVACRVIDEOS]

Thank you for watching

[@Huntersprojects]

Just wanted to say I’m a huge huge huge fan! The videos are great I’m in high school and your videos have for sure peaked my interest in HVAC after school and they’ve taught me a BUNCH about ACs and have allowed me to fix some too! Thank you! Keep the great videos up!

[@HVACRVIDEOS]

Thanks for watching, stay safe out there

[@PZgaming23]

Hey Chris, love the video love how I’m 12 years old and I’m learning so much from you. I’ve been watching you for a year and I’ve already learned so much thank you.

[@HVACRVIDEOS]

Thanks for watching

[@ehsnils]

Good to hear, learning a trade early helps a lot in the long run. My tip is that you could think about starting with tin soldering, that will give you the feel for how hot metals behave without too much trouble. Small electronics projects are a good start. Understanding parents helps a lot too. Look for pin hole project, not surface mount projects. Search for "Soldering Tutorial for Beginners: Five Easy Steps", there's a 4 minute video with that name. And if you drop the soldering iron - don't try to catch it before it hits the floor, wait until it's on the floor. Setting up a good workstation helps a lot too since you will leave a few burn marks. Just step up from there, soldering copper pipes, brazing, welding - all comes in handy later in life. You don't have to be a master, just good enough to make a good job. And don't scare your teachers with weird contraptions.

[@nathang.1744]

I started watching when I was 13 too, now I’m 17 now I’m taking a dual enrollment class, I really don’t know what I’d do without these videos! Probably wouldn’t be doing hvac

[@garousata4261]

"You may use the Service if you are at least 16 years old; "

[@garousata4261]

So you like my comment but don't ban the guy breaking the rules.... Interesting.

[@achannelwithnopurpose1977]

Obsolescence is definitely not a stranger to us in the fire alarm field. We have a customer who has an old faraday system. The system is so old that even the brand is obsolete. The brand was absorbed by Cerberus pyrotronics which is now branded under the Siemens name. We had to bill the customer over $2000 for a smoke detector change because the compatible detectors are so rare that nobody but eBay sellers have them and even that is a stretch. We have told the customer time and time again to upgrade the system to a brand new Edwards EST iO64 which supports a very economical and cost effective upgrade and gives access to the latest technology which would make any future repairs easy and more affordable for the customer long term. This particular customer never likes to do any major work until things break completely.

[@PINKBOY1006]

Thats effectively what happened at my old job I was maintenance there and we started to have some major issues with an old notifier panel from around 2004. IIRC the panel stopped outputting the correct voltage to the chain and went into trouble. Well the big boss didn't want to spend the money... that is until it started to false. So they got someone out to replace the panel and lo behold it didn't fix squat because it blew up some detectors with erratic voltage. Its not like they didn't need to be replaced anyway.... they were so dirty from metallic dust that when I welded (indoors in a very large area) the counts on the detector never moved. Well long story short the FD started to warn us about it not working and said it needed to be fixed or red tag. Big boss didn't want to spend the money. So I exited the company before shit hit the fan, and it did shortly thereafter I heard. Boss knows best 🙄

[@lackedpuppet9022]

Out of curiosity, why does the system need to have the original devices? I'm not a technician, but my understanding has always been that most devices can be used on most systems without a problem.

[@uzlonewolf]

@@lackedpuppet9022 Because money. You can't go "Aww, your system is more than 6 months old, I guess we're going to need to replace the entire thing!" if you have universally interchangeable parts like that.

[@lackedpuppet9022]

​@@uzlonewolf Not sure if you're replying to the right person. _I'm_ the one asking why _he's_ recommending replacing the whole system. I've seen numerous systems where individual devices have been replaced by newer ones without spending beaucoup bucks on new old stock from Ebay to keep using original parts.

[@petermichaelgreen]

​@@lackedpuppet9022 My understanding is that basic fire alarms use simple electrical interfaces, allowing easy mixing of brands but are quite limited in what they can do. Detectors are grouped into relatively large "zones" and someone would have to manually search the area to detemine which detector was the source of the alarm. So addressable systems came in, which could give each detector it's own "zone", without having to wire each one back to the panel seperately. Unfortunately it seems that many of the protocols are vendor-specific, and even the so-called "open protocols" only seem to be shared among a limited set of manufacturers. So if you back the wrong horse when selecting an addressable fire alarm system you can be SOL.

[@spirosdoulakis4364]

Is it pointometer....or potentiometer? Haha good video bud, appreciate the content.

[@cb3plus845]

I was laughing and saying the same thing as I was watching the video. 😂

[@SaberusTerras]

The sudden rabbit trail on temps and pressure differentials shows just how much you enjoy your work, where little details like that can get the noodle cooking. Love your vids.

[@HVACRVIDEOS]

Thanks bud

[@Caleb.0714]

Always great to see a new upload! Been watching since I was 8

[@HVACRVIDEOS]

That's awesome, thanks for watching

[@jessechavez8254]

Chris, in my mind, I don't think the pressure difference will change due to the condenser seer. You will have the same about of surface area to cool the refrigerate. I imagine if it's 20°f hotter your liquid will just be 20° hotter as well as discharge. The CTOA or SEER should stay the same. ... but I could be wrong 😆

[@kens.3729]

Great Install, Chris and Team. 👍🙏

[@HVACRVIDEOS]

Thanks bud

[@johncote2776]

I like how you do a very thorough set up on these at installation. You definitely have found that due to setting on the DC blower fan you will need to do something with the return air.

[@HVACRVIDEOS]

Thanks

[@JeremyClauser]

Great video! The heat can be set up with the split. 15 is the low and 55 high on the tag from what I saw. Should be 35 range for heat rise. Heat rise is a dirty way to setup airflow.

[@Chevy2564]

Another awesome video, Chris.

[@treefrogs2894]

For R 290 unit rooftop unit I think it's practical to make it chill water system as a package unit putting leak detectors on the unit on the evaporator it's going to be complex with a lot of false signal in the couple of years is going to be a disaster especially for kitchens chill water system evaporator coils will be practical a little more money but practical for the manufacturer this will cause very serious manufacture problem warranty if they do not do it chill water system

[@HVACRVIDEOS]

Thanks bud

[@ni_wink84]

About 10 years ago I was working on a building with one of the smooth white roofs, it was extra cold and I was up doing filters, I didn’t know but one of the hose bibs had a slow leak and made a huge ice patch, well the white hid that really well and I found it by going straight to my back, filters flying everywhere and I know they heard it down stairs 😂😂😂😂 I was just glad it was only me and no one was there to witness the groaning while I caught my breath back 😂😂!

[@HVACRVIDEOS]

No permanent damage ?

[@ni_wink84]

@ just my ego fortunately 😂 the blessing of being in my 20s

[@keithpeterson751]

I learn something new every video

[@HVACRVIDEOS]

Thanks bud, I'm glad these videos are useful

[@helmsajr]

Great job Chris has always.

[@HVACRVIDEOS]

Thanks

[@TechOne7671]

Quality stuff cheer. All the best.

[@HVACRVIDEOS]

Thanks

[@FerdinandFake]

Old boss always said to fill up the r22 units with 404, it will work for a while but ruin the compressor after a while at which point you can replace it😅 They just kept running....

[@HVACRVIDEOS]

Oh my

[@keithpeterson751]

Thanks!

[@HVACRVIDEOS]

Thank you

[@EdwardOrozco12]

Nice install

[@HVACRVIDEOS]

Thanks

[@martyechols5780]

Hey Chris where can i get the blue tooth tool that plugs in to the module to set it up?

[@zekenzy6486]

Great video. Thank you for sharing

[@HVACRVIDEOS]

Thanks for watching

[@glennmcgurrin8397]

I would have assumed multiple units on one roof would be cheaper if done at once, one crane, etc. Is that not the case, or just cashflow/ wanting to keep running thus needing to keep a certain amount of capacity online overriding the lower total cost?

[@brnmcc01]

And now next year will be R454B units, or R32 in the case of Daiken! No more R410A units starting Jan 1, 2025. And the new units will have some kind of flammable vapor sensor which we all know will be super reliable right? So then on top of all the other causes, will get no heat or no cooling calls because of a faulty refrigerant leak sensor. Great.

[@tschuuuls486]

Daikin probably uses R32 because it's the default across all of Europe years. R410A will be illegal to sell here in new devices as of 2025. No leak sensors mandatory here.

[@brnmcc01]

@@tschuuuls486 Same in the USA, but R32 and R454B are A2L refrigerants (slightly flammable) so the reason for leak detectors that shut the unit down, and force blower to run for a period of time until the refrigerant is no longer detected.

[@WswRefrigeration]

See the 9v battery. Does your sdmn6 also drain the battery while not being used?

[@they_hatedom6969]

Dam is that a direct drive blower motor. Thats actually pretty cool compared to the old belt driven system

[@HVACRVIDEOS]

Yes it is

[@mattwoodbridge7924]

Good job 🤘✌️

[@HVACRVIDEOS]

Thanks bud

[@keithpeterson751]

That was how I found your channel cutting open a compressor

[@HVACRVIDEOS]

Thanks for stopping bye

[@rogerghiardi7723]

Nice new office background

[@HVACRVIDEOS]

Thanks

[@AzizAziz-lc2qk]

Is it really cheaper to burn gas for heating rather than a reversing valve?? In Australia almost all our air cons have reversing valves.

[@KingOfKYA]

natural gas is very cheap here, as far as not having reversing valves, thats just techs set in there ways.

[@richardhiskett5422]

I think electricity rates in California are some of the highest in the US

[@lapub.]

Look like math are overcomplicated to really know, maybe someone will throw "AI" to tell (Even if it can be evaluate for ages) To know for sure if it is, you would have to know a lots of things like -the energy cost of the kw of heat that end into the building for each energy source including the subscription fees or increase of the fees if you already have gas for other use (easy for gas burner as you only need the price of gas and burner efficiency , harder the heat pump as the coefficient of performance is not constant as 1kw of electricity will give you 4 kw of heat with an outside temp of 10°C but only 2 at -15 so need to know the temperature profile of the place) -The cost of the devices that produce the energy, note that the sizing for cooling and heating may be higher than cooling only due to the loss of performances at lower temperature. Reversibility is more than a reverse valve as you have to redesign the condenser side to be able to act as an evaporator that will have to deal with water condensate to evacuate in freezing whether. Only then you may be able to tell. Maybe in the future you'll see "optimizer" for heat/cool popping out to use the cheapest heat source in a unit with gas and reversion valves but when you see how they are used today for the management of fresh air, even if they exist they will surely be bypassed. It's always a nightmare to explain why it's cheaper even if counter-intuitive to take outside air at 30 (but 10% wet ) and cool it to 20 instead of cooling return inside air at 25 (but 95% wet). And voila.

[@tschuuuls486]

No it's not. It's also pretty weird not to use modern inverter technology when power is expensive and the building is badly insulated. But in corporate America sale price is king, no matter the future costs. And as you probably can attest Mitsubishi Heavy and Daikin for example can build inverter drives that are reliable, but why bother when the customer doesn't demand efficiency.

[@lapub.]

@@tschuuuls486 Talking about efficiency, I work once to install cooling in a shop that was heater by resistive heating, I talk about the option to add reversibility in order to use the unit to heat , explaining the option would repay for itself the first year, and as they already have electric heating, the backup was already here to cover the few very low outside temp so we keep the cooling sizing. The reply was "I'm the main office in charge of investment, I'm not concern by the shop bill it's not my problem, If I would I could even demolish the whole shop and build one new it will repay itself in one year too" so stupid.

[@DBVintage]

I’ve always read that axial style blowers don’t work that well blowing into pressure. But that they were great drawing out at the end of a duct run.

[@HVACRVIDEOS]

That's something worth looking into, if I get some free time

[@ticso24]

What a shame that those brand new nice big ACs don’t utilize a reversing valve for heating.

[@SAAJ6000]

What is the reason that drain lines don’t just drop to the rooftop? I get why it must have a trap. But it could just drop after the trap?

[@HVACRVIDEOS]

Good question, I will discuss this a bit more on my upcoming live stream Monday afternoon

[@c117ls7]

I swear this is bittersweet because those R22 units were the last generation of reliable 20+ year equipment. This new stuff is lucky to last 5 years

[@AndrewMarkarian-dz3tr]

Carrier at least did improve the condensation problems that the heat exchanger would experience in the summer time. Between the old Carrier RTU system and the new Carrier RTU the inducer motor now runs in the summertime when the AC is on. This helps keep the inside of the heat exchanger dry and rust free at the expense of reducing the lifespan of the inducer motor (which is pennies compared to replacing the entire RTU).

[@tommyscottii9265]

As a plumber I would of supported the gas line. As an AC tech I understand why you didn't. Lmao

[@cthomas1864]

Do you have to get the eco blue fan or can you still get a normal blower?

[@brnmcc01]

I haven't had any issues with the blue fans yet, but it's nice to have variable speed blower, and no more dumb belts to worry about.

[@HVACRVIDEOS]

Depending on the model I believe you can still get a traditional blower assembly

[@brnmcc01]

@@HVACRVIDEOS Trane 15 ton units use a traditional blower, belt drive motor, but they have a special blower motor and some kind of VFD with DC control voltage, kind of like that Carrier unit, but it looks like a VFD controlling the motor. I didn't look too closely at it, it was a no heat call that turned out to be kind of frustrating, but not too hard of a fix overall. This unit was barely over 1 year old. I can see a major design flaw in them. They supply the combustion air from inside the compressor compartment. Which is a dumb idea, because all summer long, especially if the condenser coil gets even a little dirty, if both condenser fans are running, that whole compressor compartment gets into a negative static pressure. Which then pulls air in thru the exhaust, thru the heat exchanger, back out thru the burners. What happened with that unit was the squirrel cage of the draft inducer was just slightly dirty. But it was only pulling a vacuum of -.86 inches WC. The pressure switch is looking for -1.25. Board had a pressure switch fault code. I pulled out the draft inducer, washed it out in their kitchen sink, and then it improved to -1.60 inches! Wasn't even very much dust in it, turned the water black for a minute that was about it. But to have only run for 1 cooling season, and need to remove several panels, and at least 30 screws to get access to the draft inducer was a PITA. The unit isn't even in a dirty area. Brain dead engineering at it's finest. Only takes a small amount of dust to stop a Trane!

[@brnmcc01]

@@HVACRVIDEOS 12.5/15 tons and larger I think. They have a traditional squirrel cage fan, and a belt drive but with a 3ph motor and a VFD for VAV.

[@Blasterxp]

New style blower? Without belt?

[@VC-Toronto]

I remember he's not a fan of the kitchen exhaust fans that are without belt, might be the same with these.

[@PedroHenrique-cu6fq]

hy chris, remember like 3 year ago maybe that you used to do bigger ac units, have you changed from those work areas ? dont see those bigger units anymore on the videos. thx

[@HVACRVIDEOS]

I still have a few larger units I take care of, 3-4 stage systems if that's what your referring to

[@carloshilarionvazquezaranda]

Buenas tardes amigo Chris, un excelente trabajo el de ustedes nuevamente, para mi son cursos de calidad en capacitación y tú manera de hacerlo es muy importante. Sólo que hoy tuve éstas dudas por favor discúlpame. Una de ellas es, a qué te refieres con la estática? Y la otra es, que significan las siglas CFMS? La verdad no se que sean. Muchas gracias por todo tú tiempo y apoyo. Saludos desde Coacalco Edo de México.

[@Android_Warrior]

Pies Cubicos por Minuto.

[@bw1841]

@@carloshilarionvazquezaranda Hi Im not an hvac tech just a hobbyist but to answer your questions I used Google to look up the information (sorry no Spanish): static pressure is air pressure that builds up due to resistance to airflow in the ducts and mechanisms. It's related to efficiency of airflow in the system. CFMs is Cubic Feet per Minute of airflow. Higher numbers indicate more air flowing.

[@carloshilarionvazquezaranda]

@@Android_Warrior muchísimas gracias por todo tú apoyo Warrior de verdad que no sabía lo de estas siglas, ahora entiendo por que la bomba de vacío las muestra. Saludos y excelente tarde.

[@carloshilarionvazquezaranda]

​@@bw1841 Muchas gracias por toda tú información bw 1841. También discúlpame pues yo no se inglés utilice el traductor. Y te aseguro que utilizaré Google puesto que tú lo hiciste y es muy bueno enfrentar lo que se presente. Sinceramente gracias y ten estupenda tarde. Saludos.

[@gregdennis3523]

That looks like a big computer fan!

[@HVACRVIDEOS]

It kinda is

[@ivoryjohnson4662]

Great video !!!! I remember that video . Did the owner have to jump through a lot of permit hoops to get it replaced?

[@HVACRVIDEOS]

Not really

[@jasonjohnsonHVAC]

So correct me if im wrong. At 1.2" and 8.5 VDC.....according to that chart, you are delivering only 1800 CFM. 6 ton unit even at a low 350 CFM per ton should be 2,150 CFM, at 400 CFM per ton you would be at 2,400. Looks like 2100 CFM you can bring the static up a bit along with the VDC. Am i reading that chart wrong. Its been a long time since I've messed with one of those units with the axial fan. When those came out in 2019.....they had all kinds of issues with the high temp limit. Carrier corrected it with an auto reset....it only took them 1.5 years to get it fully corrected. I hope it doesn't sound like im dogging you, because thats definitely not my intention ...im genuinely curious if i read that airflow chart correctly ** IF THE CUSTOMER WONT LET YOU DO ANY REAL DUCT MODIFICATIONS.....THIS IS WHERE A RAWAL DEVICE WOULD REALLY SHINE. I'VE WORKED ON AND INSTALLED QUITE A FEW AND THEY MAKE A BIG DIFFERENCE **

[@HVACRVIDEOS]

First off I don’t know how accurate the chart is, I’ve also never seen a unit work accurately according to the chart. The duct work is always messed up on 100% of the units I have in operation. I believe your logic to be correct but I don’t want to increase the speed any higher because I don’t want the static any higher so we are obviously running low airflow however according to measurequick the airflow is pretty good and the general operation of the unit is good also so yeah , also you know I would never take offense to anything you’ve said

[@jasonjohnsonHVAC]

​@@HVACRVIDEOS all great points by you. I don't question what you did at all. By now I fully understand the quality of your work. It just seemed "off". I wanted to make sure I was not being disrespectful in what I wrote

[@HVACRVIDEOS]

​@jasonjohnsonHVAC not at all, I appreciate the feedback bud

[@SilentServiceCode]

Are you sure that isn't a potentiometer

[@ehsnils]

With a combustion analyzer you should be able to make sure that you don't have carbon monoxide emissions.

[@HVACR559]

Gas pipe hard piped in Cali? (Earthquake zone)

[@Funnyelectronicdude]

No 123 please don't blow up 3:48

[@HVACRVIDEOS]

Lol, not this time

[@Rollerguitar96]

hey Chris! Do you use any r-32 or r-290 AC Units? are they popular in California? In Switzerland we are getting away from R-410A and going towards these types of Refrigerants.

[@HVACRVIDEOS]

We use r-290 in small refrigeration units and R-32 is just starting to come out here . We are way behind you guys as far as refrigerant regulations

[@Funnyelectronicdude]

Eco blue

[@pzpxc]

Gotta slow down Chris you’re a great tech and a great person but man this work will kill you if you don’t take a break. I cant imagine the stress on an owner/operator but remember you can’t take care of the business if you don’t take care of yourself first. have a good one

[@HVACRVIDEOS]

Very true, my greatest and smartest friend Curious HVAC Guy tells me that quite often, but I don't listen

[@powersb]

What’s a “pointometer” 😊

[@HVACRVIDEOS]

A meter with a pointer finger on it

[@m9ovich785]

Ice on a Roof in commifornia WOW how could that be.... I thought You could only find Ice in an Ice maker HAHAHAHA

[@HVACRVIDEOS]

Lol

[@dirtysecrets19]

Can u change my ac unit on my house

[@HVACRVIDEOS]

Sorry, I don't do residential

[@loudsubwoofer8492]

but in dark mode it stills prints black.🤨

[@steveblake8766]

109th Thumbs uP Love your work!

[@HVACRVIDEOS]

Thanks bud

[@loudsubwoofer8492]

this is a test.🤔

[@davidathey7903]

Does anyone else hit the like button as soon as the video starts because you just know?

[@HVACRVIDEOS]

Lol, I appreciate that

[@lapub.]

As the price of R22 is high do you get money from disposal of old R22 ? Think about it's forbidden to do anything on the gas circuit other than emptying it and destroy the gas (in a gas destruction facility not by venting) in europe since 1 january 2015 .

[@HVACRVIDEOS]

Yes, some refrigeration supply houses will buy back R-22

[@gregmercil3968]

Carrier calls it “EcoBlue technology,” ICP calls it “X-Vane technology,” and I forget what the Bryant version is called, but they’re all the same exact thing. Ever since I got into commercial a couple years ago I’ve noticed that Carrier and ICP units are all exactly the same, same parts and everything . But they’re both two completely different entities. I wonder who actually makes these units for both of these companies? I often joke that “ICP is just Carrier from a parallel universe, change my mind…” 😂

[@zachtruax3222]

@@gregmercil3968 I believe ICP owns carrier

[@gregmercil3968]

@ I actually just looked it up earlier, ICP is is subsidiary of Carrier, and Carrier is owned by a company called UTC I think. Up until about 1998 ICP and Carrier were two completely unrelated entities, until Carrier acquired ICP in 1999; which explains why the vast majority of ICP (and all of it’s other brands) units are virtually exact Carrier copies. Another fun fact, before ICP stood for International Comfort Products, it stood for Inter-City Products before Carrier/UTC took them over. It get’s even more confusing than that though. In my area, we get all our OEM Carrier stuff from Sigler, but won’t quote parts for any ICP product despite being the exact same damn thing with the same parts and owned by the same company. For ICP I have to go through United, but they won’t do Carrier parts. It’s so dumb. 🤣

[@HVACRVIDEOS]

​@@gregmercil3968knowledge bomb right there

[@johnrider7826]

410A is on the way out. I'm not sure I understand your thinking.

[@HVACRVIDEOS]

As in why did I replace it with a 410a unit vs waiting 5 months for a new unit with the new refrigerant? Simply put the customer needed the unit replaced asap they couldn’t wait for the new equipment to come out