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An HVAC technician assists a friend in installing and commissioning an old, 21-year-old R22 air conditioning system in a shop. After the unit had been sitting for seven years, the technician completes the electrical wiring, configures the thermostat for heat pump operation, and verifies the system's functionality.
Guys, I did an intro for the video that I'm going to show you today,
but I needed to explain a little bit.
A buddy of mine bought an old air conditioner
that he wants to put on his shop.
He installed, with some help,
basically everything except the line voltage and the thermostat wire.
It's a 21-year-old R22 system that's been sitting for,
like, seven years.
Come with me. We're going to see how it turns out. Here we go.
I think first we need to get what's here out.
Ooh, that
does
not want
to budge.
There it goes.
Sometimes you can tighten it first and then...
You get it to move?
Yeah, and then they'll come loose from using it.
That's the bird's nest we found in there.
How long
has it
been on
there?
It's
safe
to
wash
it.
What I'm doing now is just measuring.
Up
top.
Give it a little bit of extra.
This is bubble
search I use
for leak searches.
It's just like soapy water.
Let's get it on.
Here
we
go.
That ain't hot, is it?
No. Okay.
Let me tell you.
That thing's
tight.
The one trying
to get the one
off the back?
Yeah I
fought with
that thing.
Sometimes
it's easier
to use
a unibit.
There it
goes.
That back
section
back there does not want to break free.
You know how most of them are just kind of like
opposite where they're tied together? That one had three points.
And then one
on the other
side and then
one right
beside it.
Plug nickel.
There
is still
a little piece back there that don't want to come off.
There it goes it's bending.
Am I
smelling
silicone
or
something
you put
there?
No, I thought I had it going.
Almost
looks
like
I
planned
it
that
way.
Fit right in there.
Would
have
been
easier
to do
this
ground
first.
We aren't using
the green wire,
are we?
It is connected inside in the panel, but...
To ground?
Yeah.
Or neutral?
Well, all four of our wires are connected.
I didn't know if we were going to need that ground or not,
but I
always
like
to
leave
it
engaged.
Terrible, terrible product.
You can't tell that I like Milwaukee.
What's your favorite kind?
This, that, and the other.
Uh-huh.
Well, I grew up using, started out with,
like, Makita's, and then I went to DeWalt.
And it's like, I don't think it really, it don't matter.
It's like what people prefer.
Yeah, yeah.
I was a Makita fan for a long time.
I used Makita for years and years and years.
And, man, this is going to be difficult.
And I was really, like, my impact, especially my impact.
I wanted something small.
And, um...
and makita at that time was actually going from like 18 volt
or 20 volt to 40 volt and they don't
invest in their 12 volt line there's almost
nothing worth buying there and um like i said
i was wanting something smaller i didn't want
anything bigger it gets cold it takes a while
to get it to thin down or to warm up and i'd sit there
and you know i'd just if i got extra if i
If I got really cold, like to the bone, I had to go get in the shower.
Almost.
Whew.
You want to Chicago?
Yeah.
There's nothing in Chicago.
No, I didn't lose anything out there.
I mean, it's like Detroit.
I mean, it's like another dead city.
It's like Albany.
Well, there's an air conditioning convention I'm going to.
I got him back with me.
I got him back with me.
You were about to tell me that, weren't you?
But I was like, you know, I don't want to overstep my bounds sometimes.
make sure these are right
okay one fits
in the other go through like
this and get that
to start there we go there we go
better to have too much wire than
not enough
All right, there we go.
Hand under there. I think I'm going to have to cut it.
is it not is it not the right size well it's
so tight and i gotta go above the
blocks and then that drip rail on the building uh-huh it's just there
If I were to try to stick two of them in there,
I would have been holding it,
and I would have needed a third or fourth hand to do so.
Well, I ain't got the other one yet.
That might require that.
Back out that screw as far as you can.
It still wouldn't matter.
And then it falls out?
Yeah.
One.
I'd get them up there, and they'd stay,
and then as soon as I went to tighten the screw, they'd fall out.
Okay.
Power wire is run.
I'm going to change that.
Let's work on the thermostat wire first.
Is it coming through?
Well I didn't know I
was recording all that.
This thermostat wire it's got
to go in here somewhere
through
this
metal
wall
which is
a danger.
That was
a little
grommet I
just put
in there
to protect
this thermostat wire.
All right now we just need
to fish it through.
We don't know how much we need to save any.
Leave a little slack back here.
I mean it won't hurt. It's already there.
Is it going to be walled up? Yeah at some point.
cavity back here to put it
in. we can cut it off right there that's fine if you want.
let's pick
a wire
we're
not using.
blue, peel
it back.
all right
we need
white
and green,
yellow, let's use black
for common, red
and orange. so these
two are not going
to be used.
The first two
are red
and then common.
I had it,
this
one is
common.
I'm gonna use black for common.
Time to
figure
out
which
one I'm
gonna
hook up,
W1 or W2, I think I'm gonna go with W1.
Just have to check it later,
make sure everything's working.
I'll just set
my screwdriver
down here.
I hear y'all over there.
Next is green.
You know something?
We were just over in that neighborhood.
You remember those first, what, 12 installs I did for you?
we were just over there the other day
and um buying some yard seed food which was a mistake
but um and i was telling her that about
the those duplexes you bought out there and we
did a bunch of them it was a chunk
and that was my first year in business
it was my very first year so i was very thankful
yeah you told me you made a good profit on those
i think the real estate market right now
is kind of not doing so well
I just listened to the people they were talking about it all.
They said they're just not posting them, but foreclosures.
They're saying right now we're in 08.
Really? It's that bad? Holy smokes.
I don't know how truthful that is,
but that's just one of these clubs or whatever.
Thank you very much.
They've been trying to bring in ringers for the football team.
I'm paying them to come move the leak out.
Uh-huh.
And...
Well, it's not mine.
Let me see.
Hold down the plus and minus buttons for three seconds.
Room calibration.
Let me see.
CD.
Compressor short cycle delay.
We're going to leave that on.
Fahrenheit.
Heat pump is on.
That's why I wanted to make sure that it knows it's a heat pump.
Dual fuel off.
Electric heat.
Yes.
Satisfy feature allows thermostat to keep multiple stages of heat
energized until set point is satisfied.
I'll leave that on. S55 on.
So does it need the heat strips on as well as the heat pump mode?
I'm just saying that turning that on means that when it's cold
and it needs the heat strip.
True.
Yo, come on.
It'll come on and stay on until it satisfies the thermostat.
The both will be running at the same time
so it's still going to have like a 15 minute delay before
it comes on and it's probably only going to come on during defrost
and when it's real cold.
That's just allowing it to satisfy the thermostat
and turn off because when it's real cold
if it gets near the set point the heat strip will turn off
and that heat pump will sit there and run
and run and run and run and run and run
And only producing a slight difference
in temperature, so that's why. Cool swing,
wait a minute, there was more I
was going to do. 5D, what is that?
Feature allows delay to occur
when a second stage is needed. Yeah.
Do you have a filter grill? What is that, a 20 by 30,
20 by 25? When we came out here the first time
this contactor looked rough, so we're going to
go ahead
and
replace
it
before
it's a
problem.
I got
some
guys
doing a
duck job,
a big one.
over on the river nice house super
nice house i told them please
mind how you step through the
ceiling oh yeah please do not step through
that ceiling oh that's the last thing i want i mean they
have vaulted ceilings with specialized trim like three inches away
from the wall and it's it'd be a
nightmare if they step through that i got catwalks up
in mine now oh that is sweet when you got them
Mm-hmm.
Got it going down across, you know,
that cathedral, or that step, instep, see them?
Uh-huh.
And trying to get over it.
I ran some of the scrap plywood and all I had.
I just started cutting it up, taking it up there.
It helps.
It does.
You got a good place to step.
Well, code in Georgia is we have to have
a walkway to the air conditioner.
Yeah.
That's almost never the case because inspectors never go in the attic.
it's nice when you see it. the only thing i
don't like about mine up there is i didn't go
big enough for the area being open. oh. i wanted
a lot i wanted a lot more area.
man those
things
do not want
to budge
do they?
man both of
these wires
are huge. it's
hard to
tell which one's a compressor. i'm gonna say
the one with the insulation on it because
the black one over
there is also
a compressor
wire. well i
was gonna put them
under these lugs.
I think I'm still going to do it.
Break it.
This thing might be ready
to fire up before we do anything more.
I'm going to check that capacitor,
and then we're going to see if it'll run.
Yeah, I'm going to check this capacitor
real quick before we do that, okay?
It
looks
like
blue
goes
to Herm,
40 and 5.
You see that?
That's a battle scar.
I shorted my test leads to ground
when I was testing something.
It was like I was testing something like this, and my idiot myself.
let's see 38.99
i'm surprised 5.1
yeah that's one
of them uh amran
that is a heat
strip adapter if
you don't have heat strips oh and it probably goes
to one of these normally right here right here
so you plug in your low voltage
and stuff to your heat strips if you don't have heat strips
you plug
that in all
right
let's fire
this thing
off go ahead
he said it's
got power
Outside
winds at 244.
Oh, I just
heard blower
come on.
We do have one
of our heat
strips
Disconnected so we're not expecting
to pull more than maybe about 30 amps. Okay. What I see is
My green is on w-2
and that may be why everything came on just my heat strips
So let me move my green over to green
and I might put I just leave the w-1 right there and see what happens
Boy,
this is the
duct work
that he
has put
in here
set to
heat
all
right
we are
on time
delay
we're
running
in heat
so that
sub freezing temperature may not mean much it's going up
though isn't it how long has it been
I think I have an opportunity out here for five or seven.
five seven years are you kidding me
I don't know what I'm doing.
is there a name plate on i can't really tell this does
not tell me what refrigerant it is but it is
It is an ICP.
And G0530, that might be a 2005.
Part that might tell me,
I cannot read.
Need
to move
that W1
to W2.
Let's
see
what
we're
pulling
right
here.
Pump is pulling 30 amps.
Guys, that one is done.
It's making a lot of noise,
but he's already said it has heated up his shop in there.
That is a four ton for that little space.
Ought to do fine.
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