Video summary
The video documents the challenging startup process of a newly installed Desert Air heat recovery unit, which was intended to replace an older Detectron system. Although the installation team successfully swapped out the old equipment and installed new piping, coils, and air handlers throughout the building, they immediately encountered significant mechanical issues with the main pull pump. The impeller on the new unit appeared damaged upon inspection, revealing that the factory-supplied replacement parts were defective despite looking intact initially. This forced the technician to travel to Toledo to source alternative components, only to find that the parts sent back also failed to fit correctly, leading to a frustrating day of troubleshooting and part returns.
To resolve the mechanical failure, the technician had to creatively repair the pump seal using a custom-made thick gasket since the standard seals were incompatible with the specific damage caused by cavitation. While working on the unit, he also addressed electrical and control logic problems, discovering that the flow switch was wired backwards and causing false alarms regarding compressor overload. The situation was further complicated by firmware issues; switching between different controller versions caused the system to malfunction, requiring a rollback to older software to restore basic functionality. Despite these hurdles, the team managed to get water circulating through the evaporator and condenser coils, achieving a temperature rise that indicated the heat recovery process was partially operational.
The core of the video highlights the stark contrast between the promised efficiency of the new system and the reality of its complex installation and debugging phase. The technician explains how the unit works by pulling air from the pool area, cooling it via an evaporator coil, and then tempering it with heat from a coax condenser or a boiler reheat coil to maintain comfortable indoor temperatures year-round. However, the startup was plagued by static pressure issues, air trapped in the lines, and difficulties balancing the flow between multiple circuits. The technician expresses frustration with the lack of clear documentation for these specific troubleshooting steps and the difficulty of diagnosing problems on such specialized equipment without extensive experience, noting that the job delayed other critical repairs around the facility.
Ultimately, the video concludes with a partially functional system that is running but still requires further adjustments to be fully optimized before the holiday weekend ends. The technician plans to return on Tuesday to finalize the wiring corrections, update the controller settings, and ensure all safety sensors are properly calibrated. While the mechanical repairs and creative sealing solutions allowed the unit to run long enough for the pool contractor to finish their work, the experience underscored the steep learning curve associated with this specific brand of equipment. The narrator emphasizes that despite the setbacks and the need to grind down impellers and bypass defective parts, the goal remains to get a reliable system running so the facility can operate normally again.
Read the full video transcript
So, you're saying Desert Air is better
than uh Detectron, right? Come on. Go on
the record. Let's bash Detron.
>> These are EXPs here.
>> Okay, we can switch those back and
forth. Won't matter, right?
>> No, you got to have A here and B here.
>> It works better though when you
crisscross them.
>> Just wire them in together.
>> That way they work together. Yeah. Just
tie A and B contacttors together
parallel. How how about we take the uh
liquid line coming back from the B
circuit and go to the A
>> run it into the A. We I've seen that
done before. That's that's that's
cascade system. Let's see what else goes
wrong. It should make some noise.
That's enough.
>> This video is brought to you in part by
True Tech Tools. Quality tools.
Essential support.
All right, guys. So, today we are going
to look over a job that we've been
doing. And this is a Dectron unit that's
been swapped out for a Desert Air. We're
doing the startup on it. Our guys put
everything in. And so now we're doing
the final startup on it. Had a few small
issues going on here and there, but we
actually got air being brought into the
recovery unit which goes on the roof. I
just did my last video on one of these
and you could see how badly that one was
a pain in the butt. I've got the factory
rep guy here which is kind of cool. So,
I'm able to ask all the questions I want
and get familiarized with it without
having to read the book, which is a real
plus for someone like me. So, this is
the impeller for the pump down there in
the basement. And it looks like it was
fine. You know, I mean, you look at it,
it looks like it's perfectly okay. I
didn't order a new one. Just ordered
this piece right here. This has a brass
piece that goes on it. Anyhow, all said
and done, even though the threads don't
look like they're screwed up, they're
screwed up. But, we're going to be doing
all that stuff here, too.
So, there's the Desert Air heat
recovery. And then in here is the good
stuff. Right here is a brand new one.
Completely brand new. Disconnect. Brand
new piping. Got rid of the old unit for
the therapy pool. Put in a little coil
up here. Reheat coil for that. It's all
being fed off the one. Got rid of all
our circulator pumps here that were for
stealing water off the tower pumps or
off the tower. Got everything marked.
Got our pool recovery here where we get
free heat into the pool. Got our temps.
We had to put traps in here, which these
are P traps. Still got to reinsulate cuz
like I said, we had to do that
yesterday. It wasn't in the
instructions. Good to see my guy heated
up my my nice sticker there. Got the
boiler reheat part here. This is if uh
the unit or the room needs heat. Brings
it into the boiler coil here. We'll tear
into that here in a little bit. And then
you've got your air handlers and stuff.
This is what we have throughout the
whole building along with a bunch of
VAVs. Our guys did the duff work
starting from here all back to here. All
this here is new. The transition up to
the elbow up there is new. This is
original, but this is new. This is
original. This is new.
So, we got the Corell controller in
there. It is not variable speed, but
take a peekoo here in a minute. See what
we got. Okay, so this is one of the
rooms down below. And this is my sub
panel for that particular unit. So I
wrote it there, but I wanted to make a
nice label so we can find it. I'm going
to make one on the breaker box up there
telling it's breaker 2 going to this
panel. I'm the only one that usually
works on it, but just in case anyone
else has to work on it, guess what?
Desert air pull de. And then leave the
exact sticker there. This is the thing
that kind of makes a big difference.
Believe it or not, it just if you label
stuff, it's not like fancy fancy. BFD
chiller pumps loot load side. Look at
that. I had to write that in there. I
think I'm going to make me a sticker for
that while I'm here. Okay, come on down
here. This is where the the boilers are
at. So, there's the Cleaver Brooks
boiler that we've been having some
problems with. Had a company out of
Toledo working on it, Energy Control.
They've been having problems with it.
So, hopefully they got it figured out.
So, here's the other panel. This is
where my drives are for my chiller. All
this stuff kind of worked together
before because had to run off the water
towers. These are labeled, but not the
greatest. Go ahead and label this up so
it's a little bit nicer looking. Got our
disconnect only. No starter, meaning
this don't do anything. That's been
disconnected because the amperage and
stuff is all with those oldfashioned
little uh heater elements, whatever. And
it's got protection at the unit. Same
thing with down here that's labeled. I
don't know where my guy is. It's doing
startup. He should be here about now. We
got our stuff here. Let's get this thing
to prepping and going because we can't
do much till we get the water
circulating. They got me a whole new
seal kit here. Not really going to
probably need it. This is the piece I do
need. Part that got screwed up was that
little piece there, which I think the
outside edge corners would actually went
bad. Your main pull pump is right here.
Here's the motor. We're going to use the
motor over. It connects to this. It's a
takeo pump. Here's the other love joy
coupling stuff like that. We clean this
out. This right here is the seal, which
I'm if I don't have to open this other
seal kit, I'm not going to. This is
going to go in between the impellers.
So, let's take a look at that real
quick. I've already disassembled this.
Let's open this up. So, we got a little
something to work with. There we go. I
got a nice little base. So, this piece
here goes down through here. We'll bolt
that bad turkey in there. Here's the
replacements. So, these right here,
we'll bolt that in
there.
I need to clean this seal out. They use
silicone, which is fine, but need to
clean that out. I got to go back out and
get me a set key because it's too
expensive to give you a new set key.
Everything's nickels and dimes, man.
I'll tell you what, nobody can go the
extra mile and give you a little extra
for your money. Private equity. I think
that's the whole problem. All right, so
we got everything tightened up. There's
that key in there. Let's go ahead and
flip this over. Here's your seal for the
base side. This goes right down in
there. They give you some oil. I usually
just use a dab of silicone and it only
goes on some of the rubber. It's a
little bit of a lubricant. I'm not
getting it on the white stuff. That way
if there is any pitting in there,
whatever. I've never had a leak because
of it. So, this is going to go right
down through the center like that. Now,
we got to wipe our hands off so we don't
get this crap all over it. All right.
So, this one's going to go all the way
down in there just fantastically. Make
sure there's nothing on that face. We
don't want to etch anything into it that
is like perfectly flat. We have the
other side that actually seals. So this
part here is going to seal the black to
that and then everything else can be
exposed. So essentially this comes down.
That's probably where we want to put our
lubricant at.
There's
so put a little bit of that. Really
getting liberal with that, aren't they?
Uh there's some grooves right here
that's going to match up to that black
thing since it doesn't want to hold
steady. There we go.
Now it works. Okay. Line those grooves
up. There we go. We kind of pinch it
together so they don't fall out of
place. All the way down. There we go.
Now see way that spins. Black is against
the white. That is your water seal right
there. So the rubber separates it to
this piece. Rubber separates it to this
piece and it's completely sealed. Now,
behind that is going to be the spring
like that right there. And here's this
piece which is going to go on the
impeller. The impeller is going to come
down and it's going to squish right up
against it. And then we will put the
bolt behind it. Brand new impeller. The
other one was brass. It obviously had
some issues. This looks like stainless
steel. So, this should hopefully slide
right down nice and smooth. Fitting
about the exact same way the other one
was. Not worth a crap. This is the bull
crap we dealt with on the other one. And
that's the reason why I was flipping
out. Hey, what the heck?
Amazing. Just absolutely amazing. I
mean, I'm at the point now like, what in
the world do you do? All I can think is
we grease and lube the crap out of it
like that. Cuz that's all there. That
goes around there like that. This goes
like this. This is obviously not what's
causing it.
See, they give you a black one. Then you
got a stainless steel one. I'm pretty
sure for whatever reason they give you
that nice long washer thing there. And
then that stainless steel thing should
match this one right here that I have
left over from the last one. Let's see
if the thing screwed up. I don't want to
I don't want to open that other pack.
Tell you what, let's just go ahead and
go with the black one again. That you'd
think the black is stronger.
Such a nice clean workbench.
Oh, for love of Bob.
Jason's like, "Well, you think maybe
that the spacer might go in there?"
>> Nope.
>> But should you Where's the original
screw at?
>> Issue still is not overcome. I'm still
waiting on the people that sold it to
us. So, this is kind of This one
actually kind of fits closer, but that
other one just wiggle wobbles. See? And
then usually the shaft fits onto that
right there. So you're saying Desert Air
is better than Detectron, right?
>> You know what? I've never worked on a
DTON, so I can't say.
>> Come on. Go on the record. Let's bash
Detectron.
>> I got to look at it first before I can
bash it.
>> It looks about the same. It's a square
box. It has a fan and has some coils in
it.
>> Yeah.
>> I mean, how fancy do you need to get,
right?
>> Well, pretty much more complex you make
it.
>> Yeah.
>> Less likely somebody's going to
understand it.
>> These are EXTs here. Okay.
We can switch those back and forth.
Won't matter, right?
>> No, you got to have A here and B here.
>> It works better though when you
criss-cross them.
>> Just wire them in together.
>> That way they work together. Yeah. Just
tie A and B contacttors together
parallel.
>> How How about we take the uh liquid line
coming back from the B circuit and go to
the A?
>> Run it into the A. We've seen that done
before. That's that's that's cascade
system.
>> Four weeks ago, I had that happen.
>> Look at you go.
Hey, it's on
>> kind of.
>> This is the guy in charge of everything.
So,
that is dirty. I'll take that bad dog in
there as soon as I get some tape. He
won't believe this, but I called the
place that sells it. They're up in
Toledo. And of course, we've already
sent one person up there to go get the
parts yesterday. Those parts didn't fit
on the impel on the impeller. And then
uh we had a guy go there this morning
and pick up parts to replace the parts
that got damaged cuz they didn't fit.
And uh before I damaged these parts, I
called them and said, "Hey, well, this
don't seem to fit." And they pulled up
their part and looked at it and it's
like, "Yeah, it don't fit right. We've
sold 50 of these." So it's like, "What
the crap?" So it's 12:11. I got to go up
to Toledo. So that's a nice hour and a
quarter, hour and a half drive. So here
we go. Yay.
You might have to use
>> you got some. I I got whatever came in
that package
cuz like I said, I was going to put just
silicone cuz that's worked really good
with roof uh edges where it's been
rusted and I usually get in there with
buy a brush similar to what you got and
do what I can with it. The
>> size I want.
>> That would have been great. But you
don't you have to have that center
probably to make it work.
That is amazing.
Had no idea.
Making a gasket so it'll seal around the
edge corners.
We do rubber from the thinner to the got
all kinds of stuff.
>> Yeah. Thicker.
>> Yeah. I have I've seen sheet metal tools
similar to that, but never that before.
Is that where the factory would normally
check it at?
>> Right. Check them because it's going to
tell you if it's out of round or not.
Not much. A little bit there.
>> 4,000.
>> That's not too bad.
>> Wow, guys. I mean, even though I had to
come up here, it was nothing they did.
the parts they had were defective and
they had sold 40 some of them or 50 some
of them and they never had no problems.
But the fact that they put it on the
bench soon as I got there, started mking
it, making sure they tried two different
ones. Something was wrong with it. But
we're going to head back to town, get
this thing installed. If it leaks, they
built me a thick gasket to make up for
the cavitation and stuff like that.
We're going to at least get it running
so the guy can go back to Desert Air,
which is over in Wisconsin, and get this
thing done. But if you guys need any
pumps, glycol, stuff like that, any type
of rebuild on that kind of thing, they
do everything from small to humongous
things that you seen there. And uh give
them a call. I showed the guy's shirt
there in the thing, but let's get going.
Head back
to I75. Here we go. He's got some idiot
in the way. Yeah, there's Dana over
there. We're finally here. Back to What
a freaking day. What a freaking day.
It's uh 4:23 and always on Friday. It's
fantastic. Here's the extra one.
There's that.
Yeah. So, we're right back to using what
we really originally had.
Yeah. Well, just easier to get up here,
run this down. Like I said, I got that's
the reheat right there. Not even going
to have time to dink around with that.
But basically, it sucks the pool area
air through, runs it through a coil. You
got an evaporator coil in here, and you
have a coax condenser coil. Then you
have a compressor in here. The
compressor puts the heat, which would be
your condenser, into this pool water.
The water coming or the air coming out
of the pool area obviously is going to
be about 84°. It's going to pass across
that cold evaporator. It's I don't know
how efficient it really is, but it
supposedly makes it more efficient and
everybody's happy. So, there's that. You
have your pressure sensing uh thing
there, which goes through here and
around. This is all going to get
insulated. It has heat tape on it. It's
not done yet. Biggest thing biggest
thing is this was all supposed to be
done fairly quickly and this has just
been one thing after another.
Eventually, we'll probably see the pool.
This video
is what I've got cuz this week has been
screwed up with startups. They've been
wanting me to do more startups and it's
screwing up my repairs. So,
I have got to be creative to come up
with stuff. So, you know, you seen that
one video where I was working on these
chillers and that boiler and all this
mess.
So,
see if we can get this thing jimmmed up.
There we go. Look at that work. Look at
that. the things I do for you folks. So,
the worry was is this right here.
There's almost nothing
almost nothing left on that. That thing
is just plum shot
to crap.
So, what we're going to do, going to
smear a little bit all the way along
here. Yeah, there's only so much I can
do. If it leaks after he's done,
whatever. It's one of them things where
we'll just order them a new pump. Either
way, I'm always ordering a new pump, I
think. It's uh we just got to get the
important stuff done first. Pumps and
stuff are kind of boring when it comes
down to it. Usually, I put it on the
front and back side, so I'm going to do
it on both sides of the tents. Work
really good. I like this just because it
fills in any voids, especially if I had
the cavitation is mild. Now, obviously,
this cavitation's extreme. Like I said,
those guys made this thing custom, which
is awesome cuz it's thicker than what it
was before. As far as the impeller being
perfectly lined up, whatever the case, I
mean, we are just uh hoping for the best
here. I know that pump stuff is kind of
boring. So, I don't usually show this
stuff a whole lot. I've done it once or
twice before. See that pump right there?
That's actually cast iron pump right
there. That's the main pull pump. Well,
so far it turns and doesn't hit nothing.
A little hard, but feels like it's
turning.
That's going to pull high amperage.
That's freaking awesome. Fantastic. And
freakingastic. That's f That's That's
freaking awesome. Thanks. Now, what do
you do
now? We maybe take the grinder out and
grind the end off a little bit cuz you
know what? I ain't got time to play
games. This has been wasting all damn
day. They need a good damn pump. That's
all there is to it. They ain't a damn
pump. No more this nickel dime We
need to get a freaking pump. Every
Friday, Rick, every day this whole week,
I've been screwed into having to work
late every day. every damn day this
week. Yep. Every time you get in there
tight, that's where it gets it. Guess
what? We're have to grind it off a
little bit. I ain't got time for this
crap.
Still gripping.
For real, dude. Tired of this crap.
Everybody else is at home except for me.
You know, the faster you rush, the
slower it goes. It's holiday weekend.
Nobody's even able to use the pool. But
the problem is he can't leave until this
is done. Not fair to him either. I mean,
he's been really cool about it, which is
really surprising. Sweating like pig
down here cuz it's hotter than crap.
What the is hitting? That's what I want
to know. What the is hitting? I don't
know if they say outside of the damn
thing is what's hitting it. I don't
know. I don't know. I'm not a pump
person. That's the problem. I'm not a
pump person yet. We got to be a pump
guy, ice cream guy, a walk-in cooler
guy, a freezer guy, a chiller guy, uh a
generator guy, residential guy for all
those 15 things. You just do everything.
And guess what? I don't know everything.
It's a little difficult at times to know
as much as I already do know. I mean,
that's why we get paid the big bucks,
but still one of them things. They're
doctors, for God's sakes, can't do more
than one damn thing. I'm a heart doctor,
a brain doctor, I'm whatever doctor.
They don't do multiple things. You know,
for all I know, could have been the
outside edge corners hitting. No idea.
No idea.
You know what? I just want the son of a
ber fit. Might have been just the
outside edge corner. I don't know.
There's still lip on there. It's a
little bit, but not bad. It should be
able to spin enough it'll break that
loose. At this point, I don't give two
turds apart to flush. Mark that down on
the books
for for the craps and giggles of it.
Guess what it needs to be.
If you pull back a little bit anyway,
well, guess what? The motor's not
freaking leveled. So, we're going to
loosen it up again and move it back a
turn. Awesome. I didn't think to mark
it. I wasn't planning on all this to be
wrong. It's pretty awesome. I'll loosen
all these up. I was really wanting to
show you guys the new unit, but uh
that's not happening as much as what I
was hoping for. It's going to be a
little short. Kind of like a 30se
second, 60-second type thing. Like, it's
not going to be that short. A lot of
people famous just for a stupid
Instagram shirt where I walk in, my
furnace is broke, then it's fixed. So,
here we go. Let's see what else goes
wrong. It should make some noise.
Close enough.
Okay, we got the water on up top, water
on bottom. Let's see what happens.
There you go.
Running.
running.
Hopefully, it's pumping water. Okay,
let's grab this crap, go up there, and
see what we got going on. So, the right
thing to do would be check amp draw and
all that on it. Like I said, I just need
it to run long enough that he can finish
his job. I could care less if it burns
up after this. We're just going to get
him a whole new system. I just got to
get it done. That one's working. So,
that's a supply, not a return. Do you
got a valve in there that would stop the
flow?
>> No. So why the hell is it not making its
way through? It's not restricted in any
way, right? Just right through.
>> The coax goes in, goes through the coax,
comes out.
>> That's what I thought. I mean, it don't
help that we have this weird thing going
on. That's is probably half the problem.
See if that helps. We need to get that
queued up first.
>> My head pressure is not out of line,
though.
>> Really?
>> Yeah.
>> Feels like it's sucking on this thing.
>> It's sucking my uh
>> That makes sense, though. It would be
sucking on
>> pressure on on B is 331 right now
at 121.
>> And you're saying that right now is the
full condenser for the unit right now.
>> That's what it's telling me.
>> You do not go from one condenser to the
next. You just
>> Yeah, you just go
>> a reheat coil only or a condenser only.
>> Okay. I mean, that's pretty good
pressure. Look at that, dude. I mean,
that's pretty That's my finger over it.
See?
>> Yeah. I
>> mean, it seems like it's doing pretty
damn good.
Why is it not going back? It
>> goes to the outside.
>> Well, I got it turned off now to try to
get to loop through, get the air out of
it.
>> Okay,
>> that's why it don't make sense. I mean,
if it's sitting there pushing up to
here, then why is it not It's going out
at 90 84 coming in at about 80 or 70 79
78 going out at 84 94. I mean,
>> about what you're reading.
>> Yeah.
>> The other one it's doing a lot better.
It's doing 10 and 105 104. So if I want
to bleed that other thing, I can put
this ball valve here. I probably can
force one through. If I do this, I'm
glad I got it up in the air.
So, if we close this and open that, open
that, close this,
that should force it down through and
all this crap, which in reality, we
should get water over here. Got water
there. Now, you're going to go
overheating on that reheat because I got
that shut off to bleed this out.
>> Yeah, that's okay. Oh, yeah. I'm seeing
it go up.
>> So, shoot this across the room.
I mean, I got good pressure here. See
that?
>> Okay.
>> That's coming out through my thing. So,
we should be good there.
>> Go out there and see what
>> Yeah. Go do go get anything you got to
tweak on that. Tweak away.
>> What?
>> Whatever you got to tweak on that, you
should be able to tweak away at it.
>> I'm going to I'm going to open this back
up though. Come on, you piece of poop. I
hate plastic valves. These things are
Okay, there we go. So, now you ain't got
that monstrous ass pump on there. What
are we going to get now? Actually, if
there's a loss of flow,
>> yeah,
>> there's a timer in when it loses flow
that it's going to shut off. So, it's
going to switch it out of it.
>> It will. So, what you said is it's smart
enough to send to the condenser. It is
>> not bad for a couple hundred,000.
>> Yeah.
>> We got straighter ports up here on top.
See this?
>> Yes.
>> I wonder if it's possible, you know,
with that being multiass. It could be.
>> Oh, only going through one. Yeah, maybe
that's what's going on.
>> Yeah, we need to bleed the air out of
it. I think
>> that sounds like a factory startup
problem right there.
>> I can't.
>> Well, my badass ain't no better. So,
>> uh
>> I know.
>> Uh yeah, you guys really made it hell to
get in these things.
>> All right. Well, the nut zer nut xerk
it's stripped out already. It's just
sitting there spinning. That's great for
brand new unit. Okay, we're going to get
in there and bleed that coax coil there,
which it's hotter and in here because
the damn boiler was on. Boy, that's nice
and hot. That is nice and hot. That's
got flow galore there. We'll let it pump
up against that. I don't give a There we
go. Maybe we just need to stop it for a
minute. I don't know. Maybe the
refrigerant was boiling it off or some
crap. Who knows? Let's do this one while
we're at it. Got water.
Good enough. One of the things we found
out though was if we cut the water back
a little bit, it ended up giving us more
flow. Obviously, some static pressure
against it that seemed to make a
difference.
I don't know if they want water both on.
I went ahead and just turned them both
on. They got plenty of flow coming out
of this. This is feeding the outdoor
recovery heat recovery unit, which I
already explained that uh water
uh is forced out there through that
through a heater loop back into here.
It's cooled by the hot air coming from
the building. The hot air basically
gives you the environment of 80 some
degree air year round. So even in the
winter, you can get good heat out of it
because more heat you have for the heat
pump, so to speak, to run or an air
conditioner, whatever. Um even though it
doesn't change modes, it puts heat into
coax coil, which then leaves it back
here and then goes out to the pump. One
thing we're going to fix here, this is
not not going to work. This needs to go
up higher. Um, it's draining, but it
sure looks like it's having a hard time.
It's wanting to kind of go into a
negative, it looks like. I mean, it's
coming out, but I don't know. It'll be
good enough till Tuesday. They're great.
Oh, wow. Those are expensive. They're
going to love that. So, there's your
evaporators.
So, let's come down to there. You can
see that right there. adjusts the uh
static pressure across that coil. And
then there's your bottom coil. Uh
kind of scares me, but they're
completely independent. So now we can
see in there pretty good. It's sweating.
Got a nice nice clear sight glass there.
Got a little bit of fresh air coming in
from the outside. That's all controlled
by a damper. These are EXVs.
down here were green.
Then they got the A2L freaking sensor
there. And they got one down here, which
I can see those getting ruined by water.
Screenshot that. Look at that. And you
can see where all the water's going.
So, it just ain't running. Contacttor's
pulled in. It's off on thermal.
>> I had it pulled in. The problem is is
when I trip this uh the other problem
I'm having, which I'm not happy about,
it gives me the alarm for the compressor
overload, but I'm in overload right now.
>> Okay.
>> This isn't supposed to have power to it.
>> That's the contacttor coil.
>> Still, the controller controller still
says compressor on with this tripped.
>> So, you're saying it should trip and
then kill the power to it, but it's
still there,
>> right? It'll it'll kill the power to the
coil. It's not supposed to say
compressor on right now.
>> It should take it out of that mode.
>> It should take it out of compressor on.
>> So, either something's programmed wrong
or something's wired wrong.
>> I just looked up to see if this was the
latest program.
>> Yep.
>> And it was. I think I'm going to put the
one before this back in.
>> I'm cool with that. It worked before.
>> What?
>> They must have worked before. They used
it for a while.
>> Well, it's got 2.0.1, but
I am looking at it at 2.0.1. And I look
at my thing. And there's no notes of why
they went to a 2.0.
>> All right. So, the guy that designed it
said we only need one at a time, one's a
backup. So, I shut off the uh top one.
And I'm going to Well, I'll label it
later. I took my stuff out and this
water from me bleeding stuff. So, we'll
get this out of here so somebody don't
think there's a a leak. There's nothing
worse than somebody coming in to check
on something and, you know, they think,
"Oh my goodness, we got a leak. We got a
leak. What's going on?" Need to call the
guy on call and it's Clayton. So, I
don't want him getting poked. So, here
we go. Come back. I think I'm coming
back on Tuesday. This is a weekend, so
you know, this will be it'll be days
later uh when you guys probably see it.
So, it's basically just an air
conditioning system with reheat, which
is meaning it uses a condenser and
evaporator, the same ballpark. The
condenser coil is right after the
evaporator. Evaporator gets cold, it
sweats. But instead of letting the air
get too cold, the foil for the condenser
is right there tempering it and usually
it's a one degree 2° somewhere that
ballpark give or take a difference. And
if that don't do it, boiler coil here,
which has a lingo valve up there that's
proportional, will allow a certain
amount through. And they're both hot.
The outs a little less hot because it's
absorbing that heat from the coil. This
thing's pretty sweet because we do have
zone temp 72, return humidity 50. So the
zone temp's way
he must have did that for set point.
He's going to have to set that warmer.
But actually we're 81.5 or 53% humidity.
So the bad boy is doing it. So yeah. And
this rat nest here is uh
the controls guy kind of got it in
there. I mean it's it's really no great
way to make that clean. That's just the
way that wire is. You can clean it up a
little bit. Make wire tie it together a
little differently, but whatever. So you
got pressure switch down here. Pressure
transducer. This is for the actual
differential. So then you got your
regular step down transformers here. And
then you got your three uh contacttors
there for your compressors, which we
have uh motor protectors built into it.
We have the adjustable amp ranges there.
So and then we got our face protection
here. So everything so far looks pretty
good. We got like I said 50% humidity
and so so far so good other than the uh
unit outside. That's all for circuit A,
circuit B, suction 116, suction temp 55
saturated. Here's your other analog
inputs. So, it's just like the chiller
where you just basically check
everything that's underneath the analog.
Analog is anything that goes up and down
uh has a variable. Digital is on or off,
open, close. So, he's still messing with
it. We're having problems with the
revision numbers. And unfortunately,
they've got the um flow switch on the
outside unit backwards and it needs
change in the compressor in the
controller. It's a normal just a normal
open or close switch and there's only
two terminals in and out and it needs to
close to complete the path to ground.
Unfortunately, it doesn't do that and
he's having a hard time finding it
because it's a total different unit and
they don't make, you know, there not
many of them out there. Not too bad of a
little unit. It'd probably be nice if we
would have looped this down there to
control it. And that's what they used to
do before, I believe. And now they kind
of got rid of that wiring, I think. I
don't know. Either way, we're getting
82ish
and 90. So, we're getting a 10°ree rise
across that water. I slowed it down a
little bit here just to kind of I don't
know. I wish I had my pressure gauges
back, which might be something something
will happen later. Got this laminated
this in my flow, which will give me
something. I know what I had problems
with on my other one. So that's the
reason why I've got this one kind of I
knew what to ask. Well, just going to go
out here and double check a few things,
but I think we're just about done. All
right, guys. So, here it is. 812.
The unit over here, the damn digital
inputs on it. We're reversed far as
normally open. Should technically
be uh the switch is a open or close
switch. Doesn't have three positions.
So, it closes when it's got flow. We
verified it had flow with the meter.
It's closed. No way to switch it in the
control. You had to go into the digital
side of it, which they hide the the uh
settings. And so, he loaded the old
firmware. That's when we got some of it
to run. So, he loaded the new firmware.
That screwed it back up the way it was.
And unfortunately, we just got to mess
with it on Tuesday. I mean, it's this
damn late. This is ridiculous. Uh, we
got at least the dehumidifier working.
So, we're going to just do it over the
phone on Tuesday. So, yeah. Hope you
guys enjoyed the video. Smack that thumb
button,
hit like, subscribe, share, and don't
forget to tell your grandma about it.
You know she wants to know all about it.
Till next time, everybody. Have a great
holiday weekend. Later.