MAKE-UP AIR UNIT MAKING A LOUD NOISE

This was a service call on a Makeup Air unit making a really loud noise, we found some serious issues and of course looking at the big picture we found a few more issues.
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HVACR VIDEOS
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[@rickyhertz7250]

Our motor and pump rebuilders is like walking into a shop 60 years ago , not one computer insight, fact invoice is a carbon copy slip ! I love it , I can even get a pump completely rebuilt in a few hours !

[@efco24]

RE, loose panels. If you get a good strong wind gust that can send them sailing. Which could easily kill someone, injure someone, or damage property. Good job being a pro and putting your stuff back together!

[@Ghyus01]

Whole bunch of years ago, I was working at a retail store who was having their roof redone. They had part of the roof covered in a large tarp since the forcast was calling for rain that evening. I walked outside near the end of my shift to throw some garbage in the dumpster when a large waterlogged ceiling tile flew off the roof with a gust of wind, smashing into my back, slamming me into the ground. Luckily I only had a few scratches and bruises but holy moly it could have been so much worse. And thankfully I was only 16! Don't think I would have sprung back up so easily these days!

[@TheColinputer]

I had a interesting encounter with a customer end of last year i was installing a point to point wifi link (i work in PC networking) and mentioned it to the owner that one of their AC units on the roof had half the panels off. Some were half tucked under the unit others just on the ground next to it. The person was came up and had a look. Wasnt too pleased, apparently a week and half ago they had a tech there working on it. And the guy just left it like that while waiting for parts.

[@stevenmoomey2115]

I found out that it’s cheaper to replace the entire blower assembly. When you start figuring up your time verses material cost. You should try Opti-Belts, especially for your exhaust fans, much longer belt life. Good for AHU’s. For adjusting the new motor pulley, I use my hex keys, to gauge the gap, deep in the pulley. Grainger’s has Crocus Cloth in rolled strip, like plumbing sand cloth rolls, for cutting the glaze on the pulleys. Just don’t use it on copper fittings.

[@scottfirman]

Back in 1985 I worked Maintenance at the biggest Hotel in our Town. None of the HVAC units on the roof had ever been maintained properly. One weekend a belt went bad on the roof vent over the kitchen Broiler and Fry stove. The kitchen got smokey and hot. I had to go up there and replace the belt with the stove on. I ended up burning myself on hot metal and what not. It kept them from having to close the kitchen that night. After that, the head cook made sure I got free dinner whenever I wanted. Also, I informed my boss of the equipment condition on the roof. I spent all summer fixing faulty roof ventilators, and eventually learned heating and cooling system repair that lasted a lifetime. Granted, I wasn't certified but it made my position invaluable.

[@erickoster152]

I was working in a large hotel as external contractor when i smelled natural gas in the staff kitchen, looked around and found a large stove on three legs causing the leak, fixed it while the cooks were working and came back in the afternoon to put some shims to stop the wobble. Got me a few free meals or extra meat on my plate. Chef told me he had been complaining with maintenance for many weeks.

[@kaibaker1522]

Your the best HVAC technician I’ve ever seen that has an HVAC KZbin channel!!!!!

[@televisionhead314]

So glad hvac repair is essential! I dont think I could go that long without seeing one of your repair videos :)

[@jarheadshooter6452]

Major liability leaving anything apart and unattended! I totally agree with your strict attention to this subject!

[@Afond378]

Not in the industry but always impressed by your level of conscientiousness and professionalism. Thanks :)

[@pepazdepa16]

It is nice that you have a look at whole thing and find even the issues that nobody asked you about. Not everybody does that. But why did you replace the motor? It only had bad bearings, these can easily be replaced, it would be much cheaper than replacing the whole motor.

[@FishFind3000]

For that hand crank lift I’d try to find a way to hookup a drill or some spare motor you take off that’s still good enough and make it powered.

[@johnbroski1993]

I was totally expecting the blower assembly to be sanded and painted but what can you do? 🤷‍♂️

[@Georges3DPrinters]

Great job! I am very jealous of that equipment lift I need to look for one ASAP!

[@J5NJAX]

Keep doing what your doing! Great content and impeccable integrity.

[@tyhuffman5447]

So I would guess that the motor pulley being worn is the root cause of the failure. A worn pulley will suck the belt down deep into the pulley. Remember that the belts are made with Kevlar and that is stronger than steel. Momentum will jerk the belt out of the motor pulley but it is a pretty violent thing and it happens over and over. Now when you look at the fan the front bearing can act as a fulcrum and the fan shaft as a lever thus amplifying the force on the fan pulley back to the back fan bearing.

[@paulchristian8271]

It’s a good idea to coat the blower hub and shaft to prevent rust. If it loses a bearing again, and ruins the shaft, it can make changing just the shaft much easier, if the blower wheel is not ruined. I have converted those to pillow block bearings as well.

[@idontneedaname85]

I was going to give you crap about the other channel not having any content yet. I loled when that was the first thing you mentioned. Anyway great videos!

[@josephkayonga5345]

YOU'RE JUST AN EXCEPTIONAL GUY, I ALWAYS FOLLOW YOUR VIDEOS.

[@demonknight7965]

You do your customer's right. You stay on top of it and tell them ok here's what i found. What do you want to do? Some people would have just replaced the bearing and waited for something else to fail.

[@MrNeptunebob]

Do you think with the virus and all at this time, makeup air units should be run as much as possible? It seems fresh air would help dilute the virus and weather is nicer now.

[@ehsnils]

I think this was a good call, even if the fan wheel might have had an even wear all around so the balance might not have been an issue it's also a risk that it could give low frequency noise when running. Replacing the engine is easy, and if the old engine could be rebuilt then it could be used in a similar unit later. No customer likes unnecessary downtime of equipment and having to come back a month later for a dead engine would just have been a waste of effort. As for the paint being cracked - only service technicians would look into that space anyway. But a tag notifying that bearings were replaced at a certain date could help whenever someone looks at this in the future. (not sure if you did that)

[@Transit_Biker]

I guess a tiny bit of grit getting onto the belt ends up carving away at those pulleys, multiplied by months/years in a dry climate probably adds up!

[@ADM_NEIL]

Great video bro!! Loved the pant review on your other page hope to see more soon. Keep it up bud!

[@HVACRVIDEOS]

Thanks Adam!

[@jamielapierre931]

I have the same lift and love it. Great video

[@HVACRVIDEOS]

Yeah it is a great lift , thanks for watching!

[@anthonygostling]

It seem's you don't have a problem using a tape for measuring , but a vernier caliper would be better for you I think.

[@SOU6900]

Wow that's a nice looking studio setup you got. Wish I could afford and had room for 3 monitors, or even 2 for that matter.

[@jjserviceshvacrllc1832]

Another great video. Thanks chris for sharing your videos👍.

[@joevinski1]

Great video brother !!! Keep up the great work

[@MrDdunn11965]

Nice computer set up!

[@TheCrystalGlow]

Subscribed to the new channel :)

[@blazeeisner9620]

Good morning Chris! How much did you save going to the motor rebuilder? I normally did those type of repairs in the field especially since you had all the LAU numbers. The one thing that you do which I never did in our trade was the “ R “. So maybe your time is different. When I had to do a pump rebuild for a water system. I did take it to the rebuilders as they would rebuild the pump and motor. Great video as always. Have a great Thursday! God bless.

[@95thousandroses]

I liked this video. Hope you and you're family are well

[@HVACRVIDEOS]

Thank you we are safe and healthy !!

[@sonycrack1]

It’s about Time Money Management..... if a vendor can do the work faster and cheaper than me - they win. Quality plays into it too, but generally speaking......

[@goginenirajashekar5618]

Good job

[@knockitofff]

5:12 Sheave dammit, I'm calling your OCD fake, or at least partial LOL

[@HVACRVIDEOS]

Its selective

[@sterlingarcher46]

That's a sweet lift bro 👍

[@TheVinnyt63]

Chris, you sound like you got a cold. Hope you're well!

[@MrNeptunebob]

I also wonder if a whole new makeup air unit would cost much more.

[@erickoster152]

Replacing the whole unit might call for a crane

[@primetime758]

oh Chris is to funny he uses a hoist... someones gettin lazy ! but good job seemed really interesting .. i don't do much air makeup... some exhausts .... mostly Belts ... sometimes motors.. but mosty just refrigeration..

[@rb3263]

Genie lift.👍🏽 cool video

[@quadcabdakota]

Just curious what that lift is manufactured for. It looks like the rigging lifts we use to hoist lights on stage at concerts. Thanks

[@gyrgrls]

Customer says "exhaust fan"? It's an intake fan, of course. LOL

[@matthewgregory8218]

The condenser gets exhorted

[@TheWoodman064]

Nice lift and I would have thrown some paint on that blower housing just for myself! OCD!!!

[@samalmo]

Wow, cool computer setup - Would you mind sharing your specs on your setup? I like those monitors, what size are they? What software do you use for your video/audio?

[@i.p.freely2501]

Re: YOUR TOOL REVIEWS: how about a few clips of you testing out tools some tecks think are unique to what others may carry? For example, most have a straight 5" needle nose, mine used to be a Shimanno for years. Now it's a 1000V 5" bent nosed type (erwin brand) with 30° angle tip. Everyone who tries it has a think about how they feel about that 😆. Most new tecks say it's on their tool list after I show 'em how I use its many useful features, as it does stick out due to handle colour designation and odd shape. Doesn't do much for the ladies though.(counter intuitive, I know) Chilling in South Western Canada, laid off from a job I loved and probably won't get back, due to Covid19.

[@byronlippe]

my 2 cents - you don't need a new channel for reviews. i would more likely watch if it was all on one channel. Cheers, it's all good.

[@nate3557]

This guy's kinda condescending but his content is so entertaining

[@michaelslee4336]

It’s how people can come across when they care so much. I have come across this exact type of person in the past and I have zero problem with it.

[@Salmon_Rush_Die]

Californians all sound that way. They don't really mean anything by it.

[@bigstr33tfromthelvk702]

hey bro, KZbin algorithm plays me a video from like 3 weeks ago, and then bam, the next video to play is from 2 years ago, i don't get it, so i apologize for a comment on a video from 2020, but anyways, i just want to say you look tired bro, long days and short nights I'm guessing? that southwest/westcoast summer HVAC/CR life ain't for the weak of mind, right? hahaha, but anyways, keep doing you bro, i learn more from you than i did in school and on the job, but that's as far as I'll go with that, and stay hydrated and humble my friend.

[@joea2274]

Would have loved to see more on this

[@HamiltonMechanical]

Chris, do you usually just replace the motor when it needs bearings? My father rebuilt a lot of electric motors when I was a kid, so I always grew up changing bearings in them myself. A press and some nut drivers and you'd be set bud :) but I understand, its a time thing, right?

[@SpaceShipDeathstar]

I just hate that there are always problems like corrosion or not properly shielded bearings by owners cheaping out when building new. No matter if it is industrial or residential they pay so huge in follow up costs, having to bring up technicians to the units again, again and again. And as this labour never is planned there is never budged for it, so nobody is allowed to take time for e.g. corrosion prevention. They rather pay lengthy cleaning processes instead of building heat exangers fitting for their purpose or having the right filters.

[@snoopyjc]

Yeah I was gonna ask why you (actually they) didn’t hit the assembly with a little rustolium

[@theairconditioningguy]

What software do you use for sound and what mic do you use. Sounds great! My motor rebuilder also paints the housing. I agree it looks better.

[@wonderhomie2011]

Greenheck blower. We just replace the blower and put new pulleys.

[@lizaguirre11982]

Awesome video and already subscribed to the other channel

[@harrydickson4575]

Another great video 👍👍👍

[@Ted_E_Bear]

Be safe in this wild world !!

[@HVACRNorth]

Good job 👍

[@PEEJ08]

unrelated to this video but do you have a video on how to read tags to see if it's adequate for the space it is servicing?

[@stephenchao3480]

A bigger motor than necessary. Why?

[@sergiodjf]

Yikes! The whole unit needs to be replaced 😮

[@jameshenshaw7668]

Ever tried using a belt hog alignment tool? No more straight edges. No more guessing.

[@HVACRVIDEOS]

I will look into one

[@standardstyle5976]

It blows my mind just a little bit how much a rubber belt can wear a steel pulley. Is there any reason they are v belts and haven't swapped to grooved flat belts like cars did in the 80s? Maybe because they require more tension, they perform much better in every respect though.

[@stevenmoomey2115]

Standardstyle it has to do with the motors starting torque and how fast it reaches its maximum speed. The belt needs to do a little bit of stretching and slippage on start up. On a car the belt starts slowing spinning when you crank the engine then goes to idle speed. Even at highway speeds you are generally not even close to the electric motor RPM, and you are not getting there instantly, from a dead stop.

[@standardstyle5976]

@@stevenmoomey2115 I don't believe thats the case at all but thanks for the reply.

[@Tevildo]

Standardstyle - The main advantage of V-belts is that they're adjustable. In a car, you're not really worried about the speed - the pump or alternator has to operate over the entire range of the engine speed, so the only issue is that it produces sufficient output when the engine is at idle. For this application, however, the belt is driven by a synchronous AC motor (which will always turn at a fixed speed), and we need to control the speed of the blower fairly accurately (so that the air balance of the building is correct). Using a grooved belt would mean we'd have to have a range of pulleys, all with slightly different diameters, and the process of selecting the right one would be very time-consuming. With a V-belt, we can just open or close the sheave to give us a range of drive ratios, and set the fan speed in one operation.

[@quertize]

What's with all the holes in the blower body?

[@csours]

I was kind of hoping for a mystery. Not much mystery here lol

[@eddiewhaler1]

Just curious... during this Lockdown, is this restaurant doing take out, off premises catering, delivery ? Non the less, meticulous as always. Your business will always grow and flourish.

[@HVACRVIDEOS]

Yeah they are doing takeout only, thanks for watching!

[@eddiewhaler1]

@@HVACRVIDEOS Besides most businesses being forced to shut down, I'm betting the farm that a lot of restaurants are not going to bounce back from this. Small restaurant group here on the Cape has 6 stores. Closed all of them and didn't pay anyone. If they re-open, that non payment stint will follow them for a long time.

[@tyronenelson9124]

That blower motor is fine i can tell, Don't make things out to be worse than they actually are, kids do that.

[@salemkaresllc7309]

What type of pulley gauge set were you using.

[@dunckeroo1987]

Probably all the problems were consequence of a bad belt run in the past, and then incorrect adjustments to try and fix it.

[@edwardmyers1746]

Interesting how the fan housing is still a shoty ass peice of metal meanwhile everything else is beautiful you'd think the builder would try to clean it up or something

[@zekenzy6486]

Great Video. how do you use the lift to lifted fan motor ? I never use it before ^_^

[@HVACRVIDEOS]

It came on a pallet that sat over the forks of the lift

[@wilsonacevedo4864]

Hi how are you doing , my name is wilson from Miamii like how you explain when you are doing the video. when you are going to do a new ones because i already saw them all.

[@HVACRVIDEOS]

New videos released sundays and Thursdays

[@polarbear1754]

It's disappointing that you don't show any of your work, just the before and after.

[@UNITEDHVACSYSTEMS]

Nice video Very informative videos by you Loved your videos Keep it up 👍 #mechanicalhvacr

[@oscaramaya8599]

👍👍

[@bryanbayles6962]

Why was the actuator left off the intake damper. Not criticizing just curious.

[@HVACRVIDEOS]

It had been bypassed before me and the customer never wanted to fix it. I actually took it out of the picture completely when I did this repair...

[@smworste]

@@HVACRVIDEOS Just a heads up, if there is ever a fire this is a problem because the intake damper won't close and you'll be feeding the fire. I'm sure that insurance won't be very friendly with that situation if it comes to that.

[@oliverturner128]

You sound pretty blocked up, hope you feel better soon mate!

[@Jugc0006]

Do fresh air intake fans run all the time?

[@Jugc0006]

A came across an fresh air intake fan but it was powers off, if you turn the disconnect on it runs all the time, is that normal?

[@38bubble48]

Know wonder why it’s making that wired sound it’s the well

[@Worstenboer]

7:00 Greenheck

[@daveg8918]

Do you trailer you lift and equipment around?

[@HVACRVIDEOS]

Yes we did use a trailer for the lift but we can also fit it in a van if need be

[@Rukagua]

What brand was it

[@anthony10370]

get a portable drill on that lift

[@steveblake8766]

#260 Thumbs uP

[@fredjones3135]

Yeah you look like yo know what you doing and some time in there and might the catch you sometime I would like to work for you all and the hand that not had my Maya training in their own the AC the X-ray CM also trained on the versus gas for us as kerosene you name it and oh also in their work Brown worked on the no no counter swamp coolers with the prompt norm and those had pump and their road where look like look like are they are they irrigation pump

[@fredjones3135]

Now also also in there with the with the you know now

[@daveblane6442]

SPARE ME THE THREE SCREENS.

[@mtcruse]

Some of us (with 50+ year old eyeballs) can make some serious use of 3 screens...

[@KaneYork]

@@mtcruse I think Dave was insinuating that he was bragging about the three screens :P

[@Samthe17]

Please reply!

[@HVACRVIDEOS]

What would you like me to say?

[@Samthe17]

@@HVACRVIDEOS I was just hoping you would reply because I am a kid that is a fan of the channel.

[@HVACRVIDEOS]

Right on bud! Thanks for watching!!

[@MrTechElite]

1stttt

[@hvachookup]

Good job