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This morning we've got a crane lift.
We've got a change two exhaust fans
and make up air Unit that are just worn out, basically.
So this fan,
this fan right there
and this. Make up air Unit.
So I'm starting right now.
I'm going to get the electrical disconnected.
We're waiting on management to get here.
I actually had to put my own ladder up.
And then.
After that, the cranes got to get here.
He's not here yet either.
We always get here early, so we're just going to start getting everything prepped.
So our cranes running a little late.
This might be him getting here right now.
We've got all the exhaust fans sitting over here and prepped
and ready to go down.
The new ones downstairs are ready.
Yeah, that sounds like my crane right now.
So we're going to get the fan swapped up here.
Then we'll worry about getting them on the curbs and all that fancy stuff.
All right.
Crane is leaving at the. Moment, or he's.
He's packing up right now.
So we've got an exhaust fan here.
We've got a make up our unit there.
I'm waiting for another person to help us so we can have three people to lift up
this guy right here.
Everything fits nice and good.
We've got our hinges for him.
This one is the tricky one because the power comes up
through the bottom and I have to pre drill the hole and the the.
New fan and
say see has a messed up blower assembly
thing is a
oh yeah
whole thing is shaking it's not good.
It's probably full of grease.
All right well to the task at hand.
I have a new hinge kit.
I'll probably put it on this fan because this is their their flat top.
This is a more critical I'll take the old hinge kit
that was on this fan and put it on this new.
One because this I don't know it's just easier.
I'm waiting on some fittings so we can do the electrical
but we went ahead and installed the hinges.
OK, so this guy now easily can hinge
all the way and we're good to go.
These changes are really nice because you it doesn't actually penetrate the fan.
It just presses against it.
It's kind of cool.
Use these a lot. I had to do a little bit of
work because it was originally on here and it was hitting and we had to offset.
It a little bit. So you see there's not a screw on that one.
But it's all good, this fan. As long as it does.
More than half the fan, it should be good to go.
But yeah, super resilient.
They also have
these guys right here to put in to, to stop them.
From going too far if it's a really heavy fan or something.
But yeah, these things do really, really nice.
All right. It's very dangerous.
It's not dangerous, but you got to be very careful
when you're starting out make up air units that have been off for a long time
because oftentimes the ductwork can be full of stuff
and you can blow dust all down in the kitchen
but I had someone downstairs, we check this one out.
We made sure carefully we bump started it nice and slow.
It didn't fill up the kitchen with dirt or dust.
So make up air units are running.
We still got to clean up wiring and seal it. Up and all that stuff.
But this one we didn't do anything with.
But it's up and running.
But this one is not working.
And we have three face power so we need to look into that.
It either has a bad switch or the dodo heads
didn't wire it in the motor, which wouldn't surprise me these days.
So we've got three face power to the top go and check all phases.
OK, ok, so we have three
face power on the top and the switches on and we have no power coming out
so they issued us a bad switch from the factory.
So we got to turn off power and change out that switch.
There's something about these electrical boxes that they install.
They're too shallow because I grabbed the three phase switch out of the old fan
and it wouldn't fit in there because the electrical comes in the back of the box.
So we need to get a deeper box for that and we'll be able to use that so for now,
we have it hardwired because they need to start cooking
direction is correct.
This one, we still got to clean some stuff up.
This one right here, it's like one thing after another with these fans.
This one, I started it up
it sounds horrible,
honestly.
I pulled the belt off and ran it.
It runs fine. It sounds like the bearings are dry.
So we're going to try putting some grease in the bearings.
That's crazy, though.
I don't feel anything.
It just feels like the bearings are dry.
Like I mean, it's extremely difficult.
I don't know. I guess it could be.
It doesn't feel like it's too tight.
Maybe I need to loosen that up. We'll try.
But one thing after another with these and just like the last ones I installed,
they didn't come with grease spout,
so I got to make grease spouts for them to go figure. Huh?
That's funny.
I didn't even catch that. It's this.
This is less the pulley I have the power turned on right now.
That's why I was making so much noise, those dodo heads.
So you got to watch these guys. Look at that. It's not even tighten.
Good.
Grief That's why.
OK, all right. Much better.
It's running undercurrent.
It's allowed to run 7.5.
It's still kind of loud, but it's all good, and we're running
7.3 amps, so we're good.
So we're going to close this one up, too.
So the restaurant opens in 15 minutes.
I'm not going to bother with the grease spouts for now.
We'll do that tomorrow when we come back.
So we're going to put grease spouts on this one.
Grease spout on this one.
We've already got the grease traps mounted we got to get a deeper box
so we can put the three things switch on that one.
This one's running fine now, nice and good.
So yeah, we're looking good
oh, and then this right here turned out all right too.
So I'm
a little disappointed in that.
That's kind of silly, that cover,
because water's going to rain
sideways and get down into there, and it's not waterproof.
It's kind of junk.
It is now.
The next morning we're back today, so we're going to do these grease, uh.
Downspouts, and we're going to put this three phase switch,
and I got a deeper box.
So that way we'll be able to fit the switch.
And so the.
Problem with these is the boxes are so shallow.
It's just a two by four box.
But with the wires coming out the back, the wires are getting pinched,
and they have the potential.
To short to ground. So we don't want that.
When you try to put the switch in there,
they don't they they bind up like they're tight.
So we're going to replace this box and put a deeper one.
I'm getting to the point where I'm probably not going
to be using these exhaust fans anymore if we're going to keep running into this
and then the construction of that make up air unit,
I'm not having it.
So this is probably the last time on this brand, three eighths screws.
And then it just untwist.
From there, we've got a much deeper box so
you can see the comparison.
So that'll allow for the switch to actually fit inside that box. Now.
Now we've got all the room in the world.
Nice and tight.
Everything's good where it's supposed to be.
So we're going to put the cover on and we should be good to go.
When you are. Putting these on,
you want to make sure that the gaskets coming out the top,
if it's not, that can lead to watery issues.
So this turned out OK.
We just got a test rotation, but we should be good.
And we're also going to test the tightness of all the pulleys one more times.
It's been running for a day.
We'll put
a breather hole on this guy right here.
So that way, you know, it drips down into.
The thing and has the little pressure relief breather hole.
And that's about all we can do on those.
We're doing this.
Last one over here right now.
So, yeah, that's. It.
You know, I really don't like to call people out
and I'm not naming the manufacturer, but I'm sure you guys can figure it out.
But I was not happy with the quality of those exhaust fans.
I just wasn't OK.
They don't ship them with the downspouts for the grease system.
They don't ship them with grease traps to catch the grease.
They don't ship them with covers for the three phase switches.
They ship them with blank plates.
They did give me a three phase switch, but then they gave me a three phase switch.
That didn't work.
That happens.
You know, I'm not so mad about the switch that didn't work
because obviously they're purchasing that switch from someone else.
But it was just the quality of everything.
It just very disappointing.
And then they'll make up air unit that's going to be a problem.
We're going to have to make a bigger eyebrow for that or something like that.
If it you know, luckily we don't get a lot of rain
in Southern California, but the inside of that make up air unit.
The surface is not waterproof.
It's not meant to have water sitting on it.
So if we get sideways rain, it's
going to hit that metal mesh filter and it's going to get inside that fan.
And I just wasn't in love with that.
It's just a bummer.
But, you know, it is what it is.
Well, we'll keep an eye on it.
But, you know, we have to be vigilant and we have to keep on top of that stuff.
And we also have to know when to stop.
In my situation,
the fan, you know, by the time because of some issues with the crane
and different things like that, we finished that first day at 10:45 a.m.
and they opened at 11 a.m.
So that's usually not enough time for them to prep all their stuff
and cook their chips and all that different things.
But you know, sometimes that stuff happens.
But I knew that it was like I needed to stop.
I just hardwired the fan that had the bad switch.
And, you know, we came back another day to change the electrical box.
We put a deeper box that we can receive the three phase switch better.
And then and to be clear to the three phase switch
that the manufacturers shipped would work if it wasn't bad...
Right!?
But, I had to pull the square D switch from the old fan,
which is a much more high quality switch and the square D switch was taller
so it wouldn't fit in their existing electrical box.
So that's why we had to make the box bigger.
And then we also replace the grease
downspouts for the grease to go into the grease trap.
I'm not a fan of doing PVC for those because inevitably it's
going to break sitting in the sun.
But that's just it is what it is, right?
It can't do anything else.
Probably like I said in the video, I'm not going to be really using
their fans any more unless they change their quality. So
the Make up Air
Unit already talked about that a little bit,
but I was a little bummed out about that, the water intrusion
that's going to happen.
So like I said, probably won't be using these fans any more of this brand anymore.
And to give context, this particular brand
I'm not going to name on, but you guys can probably figure it out.
They're like a
a low ball or a low cost version of the the manufacturer, the fans, you know,
they basically relabeled them with their own label,
but they have someone else make the fans and they just buy a budget version
customer actually purchases on themselves and they just ship them out.
But I do have a little bit of influence
over the customer, so I can tell them like, Hey,
the quality is not going to be the greatest.
You know, I'm installing what they purchase, but
it's like, I'll probably push them to go use a different brand because.
Yeah, just not a super fan of that.
But, but always be vigilant, always pay attention, always know when to stop.
Like I said earlier, you know, and something I did want to discuss
that I didn't show in the video, that's very important
when you're doing exhaust fan installs
because of the building air balance you want to make sure that you are
checking the air balance, too, and also making sure that
when you're installing the new exhaust fan, that the pulleys are the same sizes.
So you don't want to install
an exhaust fan with different sized pulleys
because that's going to change the speed of the fan.
That's going to affect the air balance.
It's very important that you pay attention to the air balance.
So I did check that. Unfortunately, I wasn't able to get that on camera.
But we made sure that the air balance was correct for, you know, new people.
The air balance is if you have an exhaust fan
pulling air out of the building, that air has to come from somewhere right
if you take a paper bag
and you put it around your face and you inhale,
that bag is going to collapse because you're pulling the air out of the bag.
If you cut a hole
in the bottom of the bag, the air is going to pass through. Right.
So think about an exhaust fan in a kitchen when you're exhausting the air
out of the building, that air has to be made up from somewhere.
We call it makeup air, right?
So we we introduce makeup air into the building.
In the case of this restaurant, through a dedicated makeup air unit
that creates an air curtain over the hoods to help contain smoke
and heat inside the hoods. OK,
so it's very important that you do not change the air balance
too much, because if you do, you have to adjust the makeup air
and in this particular situation, they actually pull a little bit
of make up air from the ACs too.
So you'd have to go and adjust the AC's.
It's going to be very careful about that.
OK, I really appreciate y'all making it to the end of the video.
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