EXHAUST HOOD CONTROL RETROFIT
ฝัง
- เผยแพร่เมื่อ 13 ธ.ค. 2024
- This was a fun Exhaust hood control retrofit that I did.
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For working in an active kitchen, what you did is amazing… I know that struggle of deciding how far you can go and still keeping them up and running when they open. You should be able to take the time to make it perfect but sometimes that isn’t the case and you showed the best of both worlds here and I totally respect that, props to you man!! I’ll take a page outta that book!
Thanks for the nice words bud!!
Give yourself some credit, Chris. That panel looks great. Neat and well organized. Id say you went above and beyond with what you had to work with and made things easy for the next guy. From doing some ANSUL and capiveaire isntalls myself, this shit isnt a cakewalk😊
Smoke evac system operation. Clever. Love the LGA units. Personally, if I am told to do something that I disagree with.....I will not do it. I caution you....compliance does not grant immunity. Be careful! Again.......great job!
Man in all seriousness. That panel looks neater than ive seen from some brand new installs. Give yourself some credit you did a great job
Im a building automation controls technician while i love VFD's and DDC control they require a service contract to maintain their operation, in commercial kitchens like this a controls service contract is rarely made. In this situation traditional motor starts will impact your power bill but again motor starters and relay control are less maintenance heavy.
Looks good, I totally agree with you on not working alone. You are thinking safety and reducing worker burnout
Don't be so hard on yourself Chris, you did an amazing job 👍👍
That panel looks nice. You did good job. Great Video as always . Thank you for sharing
Your on site built panel looks way better than most of the factory built ones in those a/c units you work on.
I live in Chicago so head’s up, it’s going to be way below zero at night early next week and not far above it for the high temps Monday-Wed. And a blizzard tomorrow and Saturday. Safe travels and stay warm!
Being a control electrician, I certainly see the pros and cons of the original system. The con being most electricians and hvac techs have no idea how to correctly program a VFD. So they end up bypassing them. VFDs are pretty cheap these days. Yes, they may have been originally sold for cost savings. But true advantage is the soft start, which is better for the electrical and mechanical systems. And you can balance the system. Now it's like having a car with the gas peddle wide open weather you need it or not.
There are just too many VFD manufacturers and each one just HAS to have their own stupid way of setup. At my factory we try to use NIDEC (Control Techniques) Commander VFDs in most places if it's possible to order equipment with them, that way majority of drives we have we can change parameters and diagnose without bringing a whole ass book.
Nothing Short of a Nightmare of Work for your HVAC Team. 👍🙏
These boxes look more than decent for the conditions you had to work with. Much better than the usual rat nests left behind by other technicians who don't get the time they need to do the job proper. As for the Wagos, check out the new inline connectors they have now. Might come in handy on future jobs.
Not sure why you need wagos when you've a panel, can you not build a rail with connectors on? Clearly I'm sat in my mums basement miles away from the sharp end of the tools!
you make my wiring jobs feel inadequate with that panel and schematics... above and beyond
good afternoon Chris.
All my respect and admiration for you and your team of workers, you know and know about many different teams, it is amazing what you do. Thank you very much for sharing all your time, you are admirable.
Greetings and hugs from Coacalco state of Mexico.
Good Job Chris nice job. I used to work for a company where I did a lot of Kitchen Ventilation Captive Aire Controls. A lot of Ansul and global shutdowns. I switched to a different Company in So Cal and no longer work on kitchen ventilation equipment. Man I miss working on those panels. Good job
Nice job! Love the schematic.
In our area, the hood system also shuts down the gas valve and shunt trips the electrical power to any cooking unit that is under the hood, I didn’t notice that in your set up, but it’s probably being done through the second auxiliary Ansel contact in the Ansel system
dude this is one of the coolest videos this channel has ever posted control panels and relay logic is awesome!
Thanks bud
the box with the contactors that you rebuid reminds me of how stuff is at my work in 80's boatlocks and bridges, just simple relays that work, tho the wooden controldesks with buttons have been replaced by a PLC so it can be controlled via software on a remote pc in a big controllcentre for bridges and boatlocks.
You did a great job tidying up Spaghetti Junction, all things considered. As you said, the restaurant stayed open for business during the retrofit, and it's a logistical headache to do that.
Nice job on your ladder diagram, too!
Mind you for my age I feel like I’m killing it but so much to learn!
As-built drawings are always fun to be missing. Tracing out wiring is such a good use of time 🙄
I'll take these cabinets' wiring over the vast majority of cabinet wiring I've encountered. One FACP I worked on had field wiring that caused a wire to have intermittent contact thanks to the field wiring being stuffed in it. I was lucky to have caught this issue by moving this zone's cabinet wiring around.
Nice job, Chris.
had to do that once at a hotel in Vegas it took 4 guys 2.5 weeks.
Looking Good, Chris.👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍.
Man Chris tell me how did you learn all this lol. I work for a decently sized mechanical company in central FL as a service tech and work on exactly everything you work on. So your videos been a blessing through my career. Big fan 💪🏼💪🏼
Central Florida Tech here too, I agree these videos are very helpful!
Very impressive work
Should have used larger panel boxes and Panduit to conceal the wiring, and time delay for fire relays, Good job Chris, not sure on California's codes, but usually a lot of unnecessary stuff.
Very nice setup
Love the videos! Super helpful! It looked to me like the VFDs were failed on the previous set up. We’ve had issue like that on similar looking panels but they usually don’t want a full rebuild of the starter panel. Even though that wasn’t how you wanted it, that was super clean work and easy to follow for the next guy. Great video!
What type of relays are those? Looks clean and great video!
I'll bet you have worked on a Carrier Eyes-on system.
Jim
Panduit is ok in some instances, but it is also a finger shredder when trying to find wires. It can also be problematic when you bundle wires deep within it, trying to hunt down wires and so forth.
Looks like a pizza shop, given the oven equipment there. Hope it was a good pizza!
I've had to buy the 480v version of those drives... If they were working and at the right voltage you had a good $10k resale
where can i learn to wire these contactors and relays?
Would it be possible to use a signal from the exhaust fan contactor to trigger an outdoor air damper position change on the ACs?
Yes that’s what I did and that is what they were doing before with the smart hood too
Panels look good to me
why did they change the system tho? the old one seemed good
All the vfd's were bad and the cost to replace them every three years was too much...
When you have room you should separate the contactors (that you call motor starter, we call them motor protection switch), helps with heat buildup and gives the contactors a longer lifespan
Look free equipment for eBay? Couldn’t you get the secondary box with motor starters wired and ready to go with wires to the pipes for second junction box and just go in swap it over and calibrate it at 8am and ready by 11? If you knew the numbers for each and had all the wires ready for each AC prior to starting?
Do you have thoughts on why hood VFD's fail? The area seems pretty clean, so that would suggest either heat or power quality issues, assuming the device isn't underspec or made poorly...
Power quality issues with no power monitoring and or protection on the building
Why did they want this done? What was wrong with the old setup?
Looked like the old one was overcomplicated, poorly documented and using manufacturer specific parts. You can only keep something like that going for so long before the best solution is to rip it out and replace it.
They might have just wanted to simplify operation...that's my best guess.
The old vfd's were all bad and bypassed, and the cost to bring the system back to normal operation was far exceeding the energy savings so the customer want conventional starters instead
@HVACRVIDEOS Makes sense, thank you
Nice job! Love the schematic.
Oh god Chris is doing electrical hope there insurance is fully paid up lol i'm kidding dude.
What restaurant was this at ?
What label maker do you use and do they fade on you? Mind fades after only a year or so.
american wiring always looks a bit ridiculous to me, i think it's the wire nuts and old black circuit breakers. but you've actually done a pretty neat job there.
May look ridiculous but percentage wise America has a lower amount of electrical fires compared to UK
in here where i do electric stuff the code says there should be no touchable copper to see thats live! just asking whats the code in there? also what u think using wire crimper and sleaves?
The work you did looks top-notch, but you more than likely voided the UL listing for the hood and it’s controller. Also most jurisdiction would require a permit and a fire control test.
Maybe I missed it, but why did the old system need to be removed?
The VFDS had all gone bad and been bypassed for a few years , about two months ago they hand a power incident and 4 of the motors burnt up. We might have been able to save the motors if they had some sort of motor starter. So the customer decided it was time to fix it. They had long ago determined that the fancy system did not save them and money
I get it but still damn. The liability. If anything happens ever. They are coming after your insurance. Your insurance will settle and you'll be stuck with the premiums.
Just curious have you thought about wearing a chest or head go pro? That way u have both of ur hands to work and explain (again I’m js curious)
How did you get stuck doing that? Should have ran it all in white wire :-) Should have ran it all in green wire :-)
I worked in a building that had a Melink system. VFD’s had to be bought from Melink. Since I did the work it wasn’t that expensive. I still don’t think the return on your investment was worth the cost
Im the kind of person if i saw you busy i wouldn't bother you cause i would feel like im bothering you
Did they throw the stuff away or did they give it to you to do whatever with it? If so, is it allowed to be reselled in US?
And another question: Do you guys work with a radio(walkie talkie or whatever) or do you need to walk around every time? 😄
It was all junk all the vfd's were bad
🔥🔥🔥🔥🔥🔥🫡🫡🫡🫡🫡🫡
They could have shut down for a couple days or have you do all this at night time
a great "pro job".
You should look at getting a gopro and a head strap for ur videos
181 thumbs uP
This seams like a step backwards
The repair costs were far more than the energy savings, we were changing vfd's every three years and the costs were too much for the customer
Sounds crazy to me that they are selling an energy saving product that doesn't even make back its own costs
I mean it’s the same for almost all electric cars and solar panels for homes…
@@HVACRVIDEOS crazy last time i did buy a new fride the sales person even said take the less energy efficant one it would need to run over 100 years to make up the diffrrence you pay more
Sounded like a McDonald's but i guess that restaurants all get similar equipment that can sound the same.
Does a Franchise owner usually have a choice on hvac companies?
Wtf? Was the old system perfectly functional? If it was, why would anyone want to change it up like this? Is this more of a consistency thing for maintenance?
The old vfd's were fried. They were spending too much to replace them every 3 years
Service will be a lot easier
If i worked at night i would do it for 100 150
"It is what it is"....I hate that overused "smartypants" phrase.
Pizza hut or Dominoes pizza or even Little Caesars
Downgrade there kitchen fan and upgrading something better.