Thanks Chris! I'm digging your new form for the closing words. It's much more informal and like a conversation with a student. Might want to stick with the old mic set up, but I'm digging the idea bro. Thanks for this!
Man, you don't even know how much you're helping out us new techs..You take something like this rack system that would initially freak me out and really simplify it down. Keep up the fantastic work
Yeah that guy in the comments is right. Your videos are really helping out the young apprentices. Some of the work is intimidating to even look at and youre giving us some really good info as to whats going on. Ty
People are getting pedantic and bitching about what may or may not be a rack? Get a life! Keep up the good work Chris, you and HVACR Survival are my favorite channels.
I had EXACTLY the same issue last week, but on parallel rack. Damn lol, thank you Chris. This information will teach future techs and it is very good thing to know about this info you provide in this video. If you planning to do career in this trade, REMEMBER THIS VIDEO!!! It WILL happen to you!
Ive seen this before. Unit pressures looked decent but very hot liquid line. (Lower ambient temps). Clipped the pigtail on the headmaster and it stopped bypassing and showed its true colors (low on refrigerant). All great information Chris!
It's seems to me that out west where it is dry and away from salt air they can last a lifetime. In Florida along the coast even if it is coated you are good for 10-15 years, outdoor condensers can last 4-5 years.
On a weekend or late in the day I have cut the cap tube on the bypass valve on the power head and that will allow the gas to enter the condenser. Just a quick fix
Awesome video Chris! Your videos are the absolute best and I can’t thank you enough for taking the time to make these very informative videos for us to enjoy and learn from. Keep these awesome videos coming!
Two decades feels like a long time in this day and age. Then I come across an electrical install from the 70s that's still running some little plant or station and only needs a little TLC. 😅
Had a good chance to refer my tech to your videos for the "Big Picture" part. Most recent instance was on Biosafety cabinet in a lab where we laboriously ran through the lighting and control circuit for the Ultraviolet lamp in the cabinet. Several hours later we found that the lab user had gotten a plastic part out of position that prevented the glass sash from closing fully, locking out the UV circuit. Go in with open mind !
Que tal Chris, buenas tardes. Nuevamente un excelente video y un estupendo trabajo el que realizaron, tus explicaciones son una maravilla pues gracias a ellas uno aprende mucho, explicas todo bien detallado y honestamente eres una gran persona tú humildad no tiene límites. Gracias por todo el tiempo que nos brindas. Tus videos son de lo mejor. Saludos desde Coacalco Edo de México.
@16:48 They sell rust fixative paint...but they warn you to keep it away from sparking / arcing devices as it cures. Trying to coat a receiver in a rack--spray or brushed on--would probably cause paint fires from the fumes, unless you shut it down. So you'd need to swap the item, paint it offsite...too much a hassle.
not much to go wrong with them, no fans and usually no exposed coils, everything buried inside the cabinet away from fingers and fiddling. probably R-12 gas and as long as the start relay doesn't go bad, or get flooded. that beast will outlast most of us. lol 🙃
I like those field piece hoses. But they’re kinda weird with purging air out of a hose and also seem to work loose fairly easily when flipping a tank over. In my experience.
Nice work Chris. I used to take care of some BEACON 1&2 equipment, my employer at the time sold it when they still did training classes in Sacramento but eventually it became a 2-week course in Wisconsin that no one wanted to send a tech to. I like the smart stuff as long as it’s intuitive and parts are easily available. Why didn’t you just pipe the new coils to a new stand-alone condensing unit though? I’ve never been a fan of those racks, personally
In New Zealand we are fronting the change with the Kyoto protocol... I feel we are the test subject for the industry. The tax on 404A is insane as we charge $400 lb for 404A. We are changing to 452A which is a lower GWP but high price for R&D costs + more tax. I can see our industry using propane and CO2 in the near future and the training has to adapt and fast.
Great video. Lol, I peeped to new PC names for the evaporators, primary and secondary. No more M@$ter and $l@ve. 😂👍🏾👌🏾💪🏾. Love your videos. Big Picture everything. Rick just dropped. Gonna watch him.
Here is a pretty good quick explanation. A shielded cable is typically only grounded at one end to prevent "ground loops," which are unwanted currents that can flow through the shield due to slight differences in ground potential between different points in a system, potentially introducing noise into the signal; grounding at the source end is usually the preferred method to minimize this issue.
I have a very good idea on where this is. The recent company acquisitions has left a demand in the restaurant industry. The company that took over hasn't been doing such a great job 🤭
Damn, the old stuff was just made to last. I know of a Kelvinator fridge in my family that lasted 26 years before it stopped chilling. Fortunately, it kept sodas cold, so we didn't lose anything.
Pays off the first time the thing turns red and shows an error code. Manager now has the chance to call you before everything in the box is spoiled. And with the eev in the box it probably saves quite a bit of power, too. Only other thing that would make those systems more reliable is having the controller replace the mechanical defrost clock.
@@tschuuuls486 The intelliGen controller does replace the mechanical defrost clock. If you ever see a mechanical defrost timer on a condensing unit paired with an evaporator with intelliGen, it needs to go. Same thing with any anti short cycling time delay. Those are not required with intelliGen either. Lastly, you don't need a solenoid valve either as the EEV closes 100% and the board has a capacitor that has enough power to close the EEV in case of a power failure.
@@tschuuuls486 Yes, in this case the intelliGen controller does not control the condensing unit. The only thing controlling the compressor is the low pressure switch. The defrost will be controlled by the intelliGen controller and it will pump down the system with the EEV closing down 100% and the low pressure switch cutting out on low pressure. There is the possibility that the compressor could turn ON during defrost... when that happens we recommend an interlock that is connected between the defrost relay at the intelliGen board and the compressor contactor at the condensing unit.
Hahaha! Those techs who say thats not a rack, are just newbees that worked in supermarket refrigeration and trying to brag or something lol. Most of them are not even familiar with these and bragging that they are working on massive parallel racks in supermarkets, so. And by the way, we, experianced supermarket techs totally understand you Chris, but those who seen parallel rack once, already braggimg and comparing sizes with no experiance. Thank you fore the vid bro, educatiinal and entertaning as usual. Pay attention you who thinks its not a rack 😂k
It’s a multiplex system , calling it a rack implies it’s a parallel system. If I walk into a grocery store where they have a bunch of single systems that share an evaporative condenser , I don’t say that store has a rack, I would say it’s a multiplex system.
Great video, when you’re doing your talk afterwards in your office, you need to start wearing a mic. You sound like you’re talking on a cheap speakerphone.
Bit of a dumb question. If you have a head pressure value sticky could you do a little percussive maintenance (ie hit it with pliers or something) to it to get it to free up.
I would put some heat shrink on the end of those comm lines; someone not paying attention could bump that up while working on it, and the exposed shield braids could short out the board.
Saw you turning the dial left to get from eastern to pacific time. I gotta say it drives me crazy when anyone presents things not "north is up" in UIs. Having to turn right (east) to get from eastern to pacific would drive me crazy. Same as when sports sites show divisions/conferences with east on the left. Go to the NFL or MLB sites and it is like this. NFL for the AFC they show (left to right): AFC east, north, south, west. Same with the NFC. And MLB shows for the AL east, central, west. And same for the NL. I know why they would put eastern first in lists. But if you are showing lists in columns make them geographically arranged.
Thanks Chris! I'm digging your new form for the closing words. It's much more informal and like a conversation with a student. Might want to stick with the old mic set up, but I'm digging the idea bro. Thanks for this!
Thanks bud I’m working on the audio setup so hopefully it will get better soon
Man, you don't even know how much you're helping out us new techs..You take something like this rack system that would initially freak me out and really simplify it down. Keep up the fantastic work
Thanks bud, good luck out there
Sponsor change up threw me off. But glad heatcraft sponsored the video!
Yeah that guy in the comments is right. Your videos are really helping out the young apprentices. Some of the work is intimidating to even look at and youre giving us some really good info as to whats going on. Ty
Thanks
Starting watching your videos as a 1st year now in my 5th year and still love watching these 😢
Thanks for watching
People are getting pedantic and bitching about what may or may not be a rack? Get a life! Keep up the good work Chris, you and HVACR Survival are my favorite channels.
Thanks bud
Explaining to the point. As IT guy that do not work in the field of HVACR I find your videos fascinating
That's awesome, thanks for watching
I had EXACTLY the same issue last week, but on parallel rack. Damn lol, thank you Chris. This information will teach future techs and it is very good thing to know about this info you provide in this video. If you planning to do career in this trade, REMEMBER THIS VIDEO!!! It WILL happen to you!
The Information you share with your Viewers is Off the Charts. Thanks Chris. 🤔👍
Thanks for watching
Been watching your channel for a long time ... have no idea about HVAC , And i find myself still watching.
Keep up the good work.
Lol, thanks for watching
Ive seen this before. Unit pressures looked decent but very hot liquid line. (Lower ambient temps). Clipped the pigtail on the headmaster and it stopped bypassing and showed its true colors (low on refrigerant). All great information Chris!
Thanks
I have an evap coil from the 80s in my apartment that's still in excellent condition.
It's seems to me that out west where it is dry and away from salt air they can last a lifetime. In Florida along the coast even if it is coated you are good for 10-15 years, outdoor condensers can last 4-5 years.
On a weekend or late in the day I have cut the cap tube on the bypass valve on the power head and that will allow the gas to enter the condenser. Just a quick fix
I hope you and your family are safe out there in California right now my prayers are with you happy HVAC -R
Awesome video Chris! Your videos are the absolute best and I can’t thank you enough for taking the time to make these very informative videos for us to enjoy and learn from. Keep these awesome videos coming!
Two decades feels like a long time in this day and age. Then I come across an electrical install from the 70s that's still running some little plant or station and only needs a little TLC. 😅
Yeah. The old stuff is the good stuff. Just had a new central heat put in and within 10 months I’m having to have it worked on.
Great video Chris, thanks again! 👍🏻
Thanks for watching
Nice work Chris, and Glad to see your home and safe! I love those smart systems.
Thanks bud
Nice work Chris. stay safe you and family.
Had a good chance to refer my tech to your videos for the "Big Picture" part. Most recent instance was on Biosafety cabinet in a lab where we laboriously ran through the lighting and control circuit for the Ultraviolet lamp in the cabinet. Several hours later we found that the lab user had gotten a plastic part out of position that prevented the glass sash from closing fully, locking out the UV circuit. Go in with open mind !
Nice install Chris and the crew. I enjoyed the video
Thanks bud
Great video as always. Thank you for sharing. Have a nice weekend
Thanks, you do the same
Que tal Chris, buenas tardes.
Nuevamente un excelente video y un estupendo trabajo el que realizaron, tus explicaciones son una maravilla pues gracias a ellas uno aprende mucho, explicas todo bien detallado y honestamente eres una gran persona tú humildad no tiene límites. Gracias por todo el tiempo que nos brindas. Tus videos son de lo mejor.
Saludos desde Coacalco Edo de México.
Hahaha, I service these in a meat dept. Totally agree. I got a huge quote for a replacement "bottom cover". (drip pan). Time to go.
The electrical section on the new evap is all new. Nice.
Yes it is
QUALITY. INTEGRITY. & TRADITION
Bang
All the pf changs i serviced had these racks they were fun to work on
Sounds delicious
@16:48 They sell rust fixative paint...but they warn you to keep it away from sparking / arcing devices as it cures. Trying to coat a receiver in a rack--spray or brushed on--would probably cause paint fires from the fumes, unless you shut it down. So you'd need to swap the item, paint it offsite...too much a hassle.
"sparking / arcing devices" includes motors, relays, contactors.
Good point
that sprinkler head between the coils had my butt puckered the whole time... must've been awkward to work around. great work, chris!
Mine to
Good job Chris........
Thanks bud
Great video. Im going to look at buying your beanie... its cold out here. ✌️
Thanks, try to keep warm
hi chris
good stuff
very good information
Thanks
My mom still has the deep freezer that she and my Dad bought in the eighties in the garage… and it still works.
Better hope it doesnt leak lol
It must be a beast of a freezer
not much to go wrong with them, no fans and usually no exposed coils, everything buried inside the cabinet away from fingers and fiddling. probably R-12 gas and as long as the start relay doesn't go bad, or get flooded. that beast will outlast most of us. lol 🙃
Sporting the Roman Atwood shirt. 👍
Yep
I like those field piece hoses. But they’re kinda weird with purging air out of a hose and also seem to work loose fairly easily when flipping a tank over. In my experience.
Nice work Chris. I used to take care of some BEACON 1&2 equipment, my employer at the time sold it when they still did training classes in Sacramento but eventually it became a 2-week course in Wisconsin that no one wanted to send a tech to. I like the smart stuff as long as it’s intuitive and parts are easily available. Why didn’t you just pipe the new coils to a new stand-alone condensing unit though? I’ve never been a fan of those racks, personally
I get it, I'm a fan of stand alones as well but between budgets and customers wants this is what we had to do
In New Zealand we are fronting the change with the Kyoto protocol... I feel we are the test subject for the industry. The tax on 404A is insane as we charge $400 lb for 404A. We are changing to 452A which is a lower GWP but high price for R&D costs + more tax. I can see our industry using propane and CO2 in the near future and the training has to adapt and fast.
Yes it does
👍❄️💪🇺🇸 great vid great explanation thanks
Cool show
Thanks
Great video. Lol, I peeped to new PC names for the evaporators, primary and secondary. No more M@$ter and $l@ve. 😂👍🏾👌🏾💪🏾. Love your videos. Big Picture everything. Rick just dropped. Gonna watch him.
Thanks for stopping by
Just wondering why only ground the shielded cablenfrom one end ??
Here is a pretty good quick explanation.
A shielded cable is typically only grounded at one end to prevent "ground loops," which are unwanted currents that can flow through the shield due to slight differences in ground potential between different points in a system, potentially introducing noise into the signal; grounding at the source end is usually the preferred method to minimize this issue.
Nice
I would call it a rack I know it's not what many consider a rack per se (grocery store style)
One thing I saw you didn’t do, you didn’t peel the protective film off the temp controller. 😂
I like to leave that on as long as I can
@@HVACRVIDEOSlol 10-4.
How are u making out with the wild fires the reason i have not been watching is i had a medical scare
Maybe the dual coil refers to one unit that contains two coils? (Not sure if that is a thing or not).
Perhaps
“Land of the fee” 😂
anyway to get your old mic working @ end of vid? Now it's more echo-y vs podcast mic?
I'll dust it off and see what I can do
I have a very good idea on where this is. The recent company acquisitions has left a demand in the restaurant industry. The company that took over hasn't been doing such a great job 🤭
Heart emoji, lol
why not install the suction oil trap at evap ? is it at a different location? Just Curious
It depends on the length of the riser. Inverted trap at the top tho….
20 years a bit less then a 1/3 of the time he is making HVAC videos. Wonder how many jobs he got atm with the crazy stuff going on around him.
What do u call that style of evap coil? I got one site with those. Don’t like em. 😅
center mount coils are what i call them
Only cappilairy systems cannot be converted to r448a, eev en txv, no problem. (Txv needs adjusting, big time)
sure they can, by installing a TXV and eliminating the cap tube. lol
It doesn’t tweak your ocd to leave the peel plastic on the display?😅
Oddly no
Damn, the old stuff was just made to last.
I know of a Kelvinator fridge in my family that lasted 26 years before it stopped chilling.
Fortunately, it kept sodas cold, so we didn't lose anything.
Very cool, lol
Some people might say, Intelligen is just an expensive failure point.
Pays off the first time the thing turns red and shows an error code. Manager now has the chance to call you before everything in the box is spoiled. And with the eev in the box it probably saves quite a bit of power, too. Only other thing that would make those systems more reliable is having the controller replace the mechanical defrost clock.
@@tschuuuls486 The intelliGen controller does replace the mechanical defrost clock. If you ever see a mechanical defrost timer on a condensing unit paired with an evaporator with intelliGen, it needs to go. Same thing with any anti short cycling time delay. Those are not required with intelliGen either. Lastly, you don't need a solenoid valve either as the EEV closes 100% and the board has a capacitor that has enough power to close the EEV in case of a power failure.
@@henryahmed but chis has chosen: "Consensing unit wired?: No". So it probably doesn't control the consensing unit. But I'm not an expert.
@@tschuuuls486 Yes, in this case the intelliGen controller does not control the condensing unit. The only thing controlling the compressor is the low pressure switch. The defrost will be controlled by the intelliGen controller and it will pump down the system with the EEV closing down 100% and the low pressure switch cutting out on low pressure. There is the possibility that the compressor could turn ON during defrost... when that happens we recommend an interlock that is connected between the defrost relay at the intelliGen board and the compressor contactor at the condensing unit.
You shouldn’t show the expert pin in the video because the manager of the building probably try to fix the system and may break thing.
Lets hope he doesn't subscribe
@ yea, or he going to be lots of trouble if the company found out about him for fixing his equipment.
Hahaha! Those techs who say thats not a rack, are just newbees that worked in supermarket refrigeration and trying to brag or something lol. Most of them are not even familiar with these and bragging that they are working on massive parallel racks in supermarkets, so. And by the way, we, experianced supermarket techs totally understand you Chris, but those who seen parallel rack once, already braggimg and comparing sizes with no experiance. Thank you fore the vid bro, educatiinal and entertaning as usual. Pay attention you who thinks its not a rack 😂k
It’s a multiplex system , calling it a rack implies it’s a parallel system. If I walk into a grocery store where they have a bunch of single systems that share an evaporative condenser , I don’t say that store has a rack, I would say it’s a multiplex system.
@refer_insight multiplex, protocol, paralell, potato potaato my friend 😀 if you know, you know!
Again, we are not in daylight savings in December
I never know when daylight savings is
@HVACRVIDEOS I will be here to guide you
@@SilentServiceCodeI appreciate that
With this huge leak, shut down the complete system, the costumer let you fill up every time without any investments in their equipment .
Great video, when you’re doing your talk afterwards in your office, you need to start wearing a mic. You sound like you’re talking on a cheap speakerphone.
I'll work on that
Bit of a dumb question. If you have a head pressure value sticky could you do a little percussive maintenance (ie hit it with pliers or something) to it to get it to free up.
You could, not sure if it would help much though
I would put some heat shrink on the end of those comm lines; someone not paying attention could bump that up while working on it, and the exposed shield braids could short out the board.
Good point
Saw you turning the dial left to get from eastern to pacific time. I gotta say it drives me crazy when anyone presents things not "north is up" in UIs.
Having to turn right (east) to get from eastern to pacific would drive me crazy. Same as when sports sites show divisions/conferences with east on the left. Go to the NFL or MLB sites and it is like this.
NFL for the AFC they show (left to right): AFC east, north, south, west. Same with the NFC. And MLB shows for the AL east, central, west. And same for the NL.
I know why they would put eastern first in lists. But if you are showing lists in columns make them geographically arranged.
Lol, I totally understand how you feel
Wintertime flooded charge
Are you gonna convert equipment over to 448 since 404 is now banned
It’s not banned we just can’t buy virgin 404 we can still buy recycled 404 which just costs more money
bad valve or out of gas. see soon enough in video. 🤔
** OK, both at once. 😆
Lol
20 years is the life expectancy of a piece of commercial equipment? How sad.
I hope you are not in the way of the fires.
I am not
89th Thumbs uP