WHY IS THE AIRFLOW SO LOW?
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- Опубликовано: 24 июн 2020
- This was a call on a kitchen ac not cooling properly, right away we noticed it had horrible airflow because the unit was filthy.
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I think your hitting the nail Chris ,
We always have to make the balance between perfect and functional.
Now with the covid ... it is a whole new game .
I have many customers who have cut labor loads down dramatically. Forklifts are sitting idle and pm service is not being done.
Fast forward a few months and they find the industrial battery is dead , now it is up to us to see how we can help the customers...
Basic point is , I make money from them making money , if they can't make their money , they sure as S don't want to pay me .. if I take it like a wild man , they never call us back .. fine line , customer relations are huge . Be safe brother !
That's because there are too many sheep out there giving into the democrat bullshit.
There is a way to fix the Venturi problem on the condenser fan motor add a piece of sheet metal about 3 inches or so to extend down do the blades.
Kudos for this video. It proves I'm NOT the only one biting my tongue about customers' zero maintenance (my former boss once tried to calm me down by stating, "George, I once flew to SINGAPORE and all I did there was change his filters; that was an19 hr flight OUT, 19 hr flight BACK ,and ONE hour on site").
Can't clean it up too much. Some of that dirt might be structural!
Make sure you get some good OEM dirt from the manufacturer just in case.
Take the removal stem back out of the cormax tool body and crack the ball valve to release pressure and confirm cormax Schrader is sealed.
This video would be perfect to show to people who are saying "we dont need preventative maintanence, it will be OK" to show why proper maintanence of air-conditioning is important.
I peeled off half an inch of dog hair from an evaporator coil a few times .
I cant believe some people would still like to have the old furnaces to move air into their homes.!!!
I pulled a bag out of an A coil that was part of construction some 10 years prior. The bag was used to block dirt from going down into duct boot during taping n sanding. They were never satisfied by other co. Everything pointed to not enough air flow but fan ok,duct size ok. Used a camera to see if evap was clogged but to my surprise wala ther3 it was,a bag inside the coil covering bout 75% of the flow through the coil. Quick fix,removed it and the unit work 100% afterwards....
After 40 years of hvacr I can't eat at Restaurants and fast food joints anymore! 🤮
Only took me 6 months of restaurant refrigeration work to get there. There's a certain sandwich chain I wouldn't eat at if I was starving to death and they were the only place with food for miles.
I worked with a lot of guys thinking they are above cleaning units it's the other guys problem when I would bark at them and say cleaning is a repair it fell on deaf ears.
Love your attitude towards these units as if they were your own kind of had the same mentality taking pride of what you do.
HVAC control wiring is a nightmare. Why isn’t everything ran nicely in wire duct or something? Us electricians would be fired for doing work like that in our control panels.
Hear your bark big dog. Electrician checking in
Ikr thats what I was thinking all of out plc controll units are cooled and must be nice and labeled
Nice looking tie-wrapped wiring results in service people cutting to gain access !!! Hot wires hanging Not Touching other wires
is actually better than wires all bundled together !!!!!!!!! That's my theory and I sticking with-it
really shows the quality of the food in a place how they care about their equipment, everything there is greasy and they are too cheap to maintain it speaks volumes about the work ethic of the business owners
Truth is today I find most managers rely completely on your expertise and watchful eye to tell them what’s going on. if you don’t theyThey don’t know, some job walks I’ve done, the engineers walk me to the roof and say I’m not Allowed to go up there per company policy.
@@adambergmann7716 haha, I worked at an anchor store in a mall before where this was the case. I literally got paid to chill on the roof with our HVAC guy and learn some stuff while I was at it. I definitely want to get into the trade but I know I need to lose like 90 lbs before I can comfortably work in these conditions.
I am from Europe and it is funny to see R22 still getting refilled.
2:20 Ha! "The Zip Tie Zipped To The Zip Tie" Hahaha!!!
These videos really help me look at a bigger picture every time I step up to a system. I've only been in this trade a couple of years and I watch these like they're homework, but the good kind. Thanks.
Also when I saw the phase rotation wrong I knew you'd change the load/line wires to match colors for your OCD, I'd do the same lol
Brings back memories of my 38 years in the field!. Now a HVAC Instructor, I definitely like the video, will use it for why we have preventative maintenance to avoid what you ran into ran into Chris, but this will never go away many companies or businesses just try to get filter slamming cheap maintenance plans and think this crap will not happen.
The various refer units on the ferries I have work on over the years, the bulk of the work has been cleaning. After finding your videos I'm realizing even more how important it is.
Great videos, great work!
6 more screws and you would've had the filter rack out of your way! Just bustin' your chops. You do great work and I truly appreciate your videos. Too bad I"m in KS and you're in CA. We'd be a great team.
Man you are the epitome of pride and quality. Anyone who employs your services should be honored to get such great work. Your OCD as you often say will do right by you and your customers. If nothing else, when you look at it you can be proud regardless of what others think.
Chris,
Just wanted to let you know I love your videos. I used to work on rtu's at a large corporation. I took classes and learned mostly on my own. I wish I had your videos then. I have learned so much. I was noted as one of the guys to go look at the units when there was a problem with any unit. I could normally get it running, if not I had a couple of pros that would always help me. Never went beyond my level. I did however learn to keep those units clean. Makes a huge difference. Those units are not 16yoa and still running. Thank you for your videos.
I’ve worked on some Carrier RTUs just like this at a couple Popeye’s locations. Cheapest RTU possible and used as a MUA for their kitchens. Duct is nasty, coils are filthy within a week of cleaning. Compressors short to ground every couple years because they run them in winter with no safeties, no Crankcase heaters, no economizers. I write up the issues and concerns and make recommendations, get the pricing, they never approve. Then it breaks again and they dump money down the drain not wanting to fix it right.
You gotta make a plot out for them of how their long-term profitability will be better if they let you 'do it right' so they will be paying you for cheaper PM instead of having to completely replace.
@@Patriot1776 Exactly, show them the cost per year of fixing a crappy system vs. the cost of replacing the entire system with a better design and much lower per-year maintenance costs...
Wanna bet the new system gets paid for completely before the end of the 3rd or 4th year?
Another great video. As an electrician, I just hooked up the electrical and never thought that maintenance was needed. My thinking was that you set an ac and just let it run for five or ten years and then replaced it. I learned differently. You have great videos and an honest disposition. Great job!!!
I'm really enjoying your videos, fascinating look over shoulder of a professional. Thankyou for taking the time to make them
Great job. Just came across this video. I was an instructor for HVACR you do a great job showing reality of the trade and you seem to be a true professional. Keep the information flowing, we need your videos to show how it should be done.
I kept looking at that rip in the side panel. I was going to say that you could probably find a sheet metal shop down the street that could have welded or braised that back up. But then I realized that you have a torch and silver solder, and *you* could braise it back up if you wanted to. It wouldn't be a new panel, but it would keep the weather out of the electrics. Silver solder would be a bit costly, but still cheaper than the time to take it down the street.
You'd also have to re-paint the heat affected zone, and I doubt he makes it a habit to carry paint with him.
Oh, as a side comment, on a three phase motor, you can just switch any two phases, if it is running backward. I saw you were using phase tape to keep it right, but it is faster and easier to replace phase tape than replace the whole thing. Just a thought.
Don’t blow screws away
Very Nice. Great detail in the rebuild. Thanks for taking pride in what you do. Very Rare these days.
As Steve L. would say: "Give her the old 'how ya doin', mama!' "
She's low on juice, gotta give her some more juice
Wow! You do a good job! Very nice to see someone proud of the good job they do! Keep the good work!
I wonder how much junk got blown out of those ducts after that blower wheel was cleaned😂
Very good brand motor. I generally replace all motors with a WEG unit. Bit heavier in weight, but very good quality.
Just a note of encouragement to you, I'm head of maintenance for two restaurants and you have no idea how nice it is to have contractors that are open and transparent about the work that needs to be done to the equipment. Even if it means I have to turn you down for a smaller job that I can do, that transparency is what's going to keep me coming back to guys like you for the bigger stuff. Keep up the good work and thanks for sharing the stuff that you find in the field!!!
I know it’s a pain in the butt, but I only take readings with both circuits running. ( you already know that) If they had pleated filters in the ceiling, rather than unit, duct work and inside unit would be far cleaner. I’d be concerned about customer bankruptcies these days. You are one hell of a salesman. Great job, great video.
I am not doing anything related to HVAC but I seem to really enjoy these videos. Its kind of funny lol. Thanks for the interesting videos!
I like how you prioritize the tasks that are essential vs the ones that are more optimum. It is clear that failing to have work done is only kicking the ball down the street, there's no real economy, usually with additional costs.
Man i never thought that watching some dude fixing up ac's would be so interesting, I'm 16 thinking about what to do in my life but currently I'm thinking about ether being a mechanic or maybe fix ac's
Broken, I'm 61 years young and I've been in the A/C and refrigeration industry since 1976. It has taken care of my family and me well. I've worked both sides of the counter, parts& equipment sales and the service side. We need new techs in this industry so go for it. You will learn something new everyday as well learn people skills. Good luck my friend.
Kent Arnold would an A/C tech be something you’d need to go to a trade school for? Or do some companies do like an apprenticeship style of learning? I work in a warehouse as a forklift operator and the job just isn’t for me. Bouncing around on a lift for 12 hrs with little to no human interaction is a nightmare on the human psyche. You can only have so many conversations with a pallet of chips and cookies xD
I’m a medium/heavy duty truck tech and marine Diesel engine tech... and I literally wait for new videos to be posted. I’ve learned a lot from watching these videos and even applied some to fire truck and ambulance hvac systems!
With all that damage and with the age, they should really replace the unit(s)...I had to replace mine and now my wife likes me again. Thank for posting this..learning much.
I see several stages of wear and tear in these videos: 6) I'm gonna recommend they get a new unit 5) Completely trashed 4) Nightmare 3) All jacked up 2) Catywampus 1) We just installed this new unit TODAY
Scraping the gunk from every blade on the blower makes a fantastic difference. Good job!
Most businesses don't do preventive maintenance to begin with. Its crazy how bad they let things run until it's just beyond repair. This unit was close it looked like. Good job man.
pre video guess: there is a dead body blocking the duct jk. love the vids as always
kevin heaton the old tech fell in there and they took over because they couldnt find the other guy
@@jasonmurawski5877 wtf u talking about???
I sense a conspiracy
AC mafia wars
probably
I got this video in my recommendations and I started watching them for a few days now I don't even work with A/C units xD
Hi Chris,
It cleaned up well enough under the circumstances, a lack of maintenance is often easier to deal with than badly done maintenance.
I think back on times when I should just have refused to work on package units because they were scrap as a result of how they had been treated.
Best regards,
Duncan
It is extremely satisfying watching cleaning of an A/C unit :)
That ac was a mess !! Nice servicing do love the videos ! Keep it up
First time I saw your video. Instantly subscribed. Amazing work. Learned a ton. Keep up the outstanding work!
Thanks bud
I have taken blowers to the local car wash to pressure clean them... LOL
Love your videos . They’re a great training tool. Nothing is half assed .
Woooowwwww!!!!
Did you see the heat exchanger!?!?!?
And restaurants don't ever do any PM work. Not until it's broke, which will be during the most busy part of the day with 100 clients inside!!!
Love the video, theres something therapeutic about foam cleaning a dirty coil and making it pretty again
Do the video when you are cleaning those dusty ducts.. THEN measure how much dust you've collected...
Nice watching these videos, seeing someone from the same trade just different part of the industry. Very entertaining! Glad I don’t have to carry all of my tools up a ladder and through a hatch :).
This is so satisfying to watch.
I just left two little 5 ton ‘14 models.... both dirty both belts beyond replacing... filters looked like a sleeping bag... I did just what you did cleaned them fixed one refrigerant leak. All that for a fraction of what two other shops wanted to charge customers for two new units.. lol... people are something else. Great work bubby keep up the honest trustworthy ethics that everyone watching your videos should practice
You truly went to down town with that rtu so good job....Lennox has AHs set up like that with the blower tension plate being a major problem cause it warps when added tension
Excellent work and thanks for the awesome content and wow that blower is so dirty I am surprised it still works stay safe and take care
As the owner of a mega warehouse and office complex I'm always thinking partnership with the HVAC firms...We do 4X a year PM and it's the only way to keep things functioning and extend the capital equipment life...Excellent video and wonderful channel.
Great job Chris. That was a nasty unit!
AC units are huge in the US compared to the compact ones we have in Europe. At least you guys can work on them ours just get thrown away when they fail
"Again." Seems like it's a thing. "Again......"
Once you start you can't stop. "Again."
But one thing I will say is that you're thorough and meticulous
I wish I knew a commercial A/C guy locally to get bad motors and blowers off of, I love rebuilding those things. Bearings are a super easy repair most of the time and it'll make the motor last many more years.
That blower looks like a new tool and I see you love using it. NICE!
I understand you.same things are happening here in spain,less maintenance more corrective and they think we work too expensive
Great video! Total makeover! 👍🏼
lots of work! it looked really good!
Good video man! Just got done changing out carrier blower motor about 20 minutes ago in that same style unit! They had a universal blower motor on site to change it with. Pain in the ass wiring. You can wire it for low or high voltage. Obviously only high-voltage in this case. About 12 wires or so. Keep up the awesome videos!!
Another great video. Good info, even for an old air balancer.
Viper cleaner by the case ”YEAH”
Pulled my head back at 2:32 you got me 🙄😂
In this case given your knowledge and ethics the best you did was the best they would ever get. Good job! 👍
Holy crap watching you clean that unit is my ASMR Hahahah love cleaning a dirty unit
Its satisfying to see condensers being clean
10:29 is that a Steve Lav reference lol - Cattywampus
13:43 I been watching from the beginning. Call me crazy and may sound like its stupid. But during the time stamp i put on this comment, If you have a pack full of washers and maybe some longer screws. You can raise the fan motors up another half inch, and could make all the difference in the world with how its flowing the air past the condenser and up out the top. because the fan motors are hanging from the spider web and facing down. If you raise the assembly air has less of a gap to pass and cycle back around inside the case and around the compressors.
Good vid Chris ...Keep sharing your knowledge ... Helps the young'ens ...
The blower wheel is really dirty and the ducts are sooo dirty also! Yuck!
Looked like the ducts were going for that 70s shag carpet on the walls look.
By the looks of that Ra drop I wonder how dirty the return grilles are? I'm sure all that gunk on the blower didn't help that motor.
good video wish you did more on the troubleshooting .
I had a bad one of those motors today and gotta get one ordered
Good video like always chris .
Chris always great videos ..
Nice quick fast good work
Another fine job. 👍🏼
Wish I had the nice trouble meters and guages when I was doing hvacr. Good job I have seen worse
2:10 "uses blower to point to contactor's" that had ma laughing idk why tho lol
Oh you are in cali. I worked in the central valley from Sacramento as far south as merced all the way east to hope valley and west to san fran bay area.
Out there polishing turds like a boss.
I'm a professional turd polisher!
HVACR VIDEOS Aren’t we all😂🤣
Wonder if you could put a small shroud around those refurbed fan motors, to channel the airflow out the unit better. Blades lower, hole lower, problem solved?
Every time I watch a video i want to buy that set up you have on the pad
That is one well used unit.
Awesome video! 👏👏👏👏
My company policy prohibited working on any restaurant and/or bar units. In my experience they are always filthy and I never cared to work on them. There was plenty of other work out there. Let guys like you do those. Of course there are the hair salons and movie theater lobbies (with the popcorn machines) that I did work on, which were nearly as bad. One movie theater had to have filters replaced each month and would drip yellow butter flavored oil each time I pulled them. It was normal for hair salons to have sucked in filters full of hair mixed with hair spray lacquer.
I stopped working restaurant/bars after finding cockroaches in my toolbox. While working on an ice machine in a kitchen, I witnessed roaches running around on the food they were serving out front. Then one of the cooks mis-connected a milk shake blender container and it flew off and landed on me and my tools, coating them with chocolate shake. That was my last eatery job. Being retired, now, I can laugh...but at the time.....
The labor rate for kitchens is 1.5 x standard rate when I get a call
When you see Roaches (or any other creature) on the food at a restaurant and the staff doesn't instantly Freak Out and throw the food out, that's when you pack up your tools, walk out and call the Health Inspectors!
Take Pictures of the problems/conditions on your way out in case they figure out what you're doing and 'clean up' before the Inspectors get there...
You should get one of those small portable electric power washers for cleaning parts that wouldn’t be damaged by it
I've noticed even on the newer models with the more rigid blower mounting brackets the blower deck itself flexes 😂
If the bean counters (upper management) saw a spreadsheet of a repair that could of been caught early. Then draw up a spreadsheet with a graph to show the differences in cost by doing planned maintenance and catching the repair early. They would be on board in a heartbeat, the problem today with upper management is that they are to lazy to see the value because it doesnt effect them today. Most upper management just like to put out fires and dont have the vision to see pass that.
There is huge opportunity if you approach it right and get to thier boss. Pulling repair data for the last 12 months and setting a complete maintenance monthly budget which will include planned maintenance to further reduce cost and keep the customer for a lifetime because you just dont want to be a repair company. You want customers to see you as a partner and sometimes going that extra step is were succesful businesses shine.
good job, airflow is everything.
me: was watching music videos
youtube: A C
They really need a duct cleaning! Wow that was crazy
67tr876. The mechanical channel Man, a whole tub of ducks could go down that shaft and every one come out all black. It's today's Underground Railroad.
More like in need of a Chimney Sweep with all that filth.
As far as I know - lack of maintenance is the leading silent killer of hardware (chronic overheating being right on its heels, I guess -- the fact that the former tends to induce the latter isn't helping any). It doesn't have to be perfect, because you have the 90/10 rule to help you -- you're going to get 90% of the effects by just roughing it, really. But it really, REALLY has to happen. Even if the damn thing has sealed bearings, you can still clean it out to lower the load and prevent physical damage due to particulate grinding.
WEG is a Brazilian Brand of eletric motors and transformers and it's the most famous brand in the world, and the best ones too! I user WEG motos all my life and they are insane.
When PM gets behind its so stressful trying to play catch up. Its like your engine blowing up because the oil wasn't changed.