- Last time we had to
stop short of installing the indoor units for my DIY
home air conditioning system, because I ordered the wrong thing twice, delaying the shipment. But not today. We've got one, two,
three, four indoor units. Sorry, that one's empty. 'Cause we already opened up this one. Ah, yes, my lovely assistant ♪ Brian The Electrician ♪ is going to help me put three of these. So these are the cold side units with the evaporator in them,
in the ceiling of my home. And I have no idea how, these are a lot bigger than I expected. - Just a little bit. Are these gonna fit
between the ceiling joists? - Just. (laughs) - We're gonna mount this. IFixit's Mahi driver kit includes their 1/4-inch
aluminum screwdriver handle with a magnetic bit socket, knurled grip and swivel
top, and 48 driver bits. Check it out at the link below. (upbeat electronic music) - Whoa.
- Oh, yes, manual. - Right off the bat,
wiring obviously goes here. There's the refrigerant
lines and there's your drain. - And the drain is key because
condensation and all that, we don't want that just
soaking through my ceiling into the rooms below.
- Yeah. - For those wondering why I am DIY installing air conditioning in my house, the difference in cost,
this is all together gonna cost me around five grand. The quotes that I got
back when I had it quoted were anywhere from 20 low to 20 high to have it done professionally. No offense.
(Brian laughs) Unboxing-wise, we've got
the remote, some batteries, cable harnesses,
fittings, stuff like that. We've got some insulated jobby
here, some worm-drive clamps, presumably to put that on. And I found this. So, each one of them
comes with a fascia piece. This is a lot bigger than
I expected, you know? - At least It doesn't stick down very far. - Yeah, so it's right flush
with the ceiling like that. And I think it's motorized, 'cause there's a couple
cable harnesses here. And I found one cool feature I like. You can go like this and then it'll just kind of
hang off these stringy things, and you can clean your filter like that. - And it gives you
access to the electrical. - All right, so this'll be fun to install. - Yeah, especially when
I get to play with fire. - Oh, what's the fire for? - Soldering the refrigerant lines. - Oh, okay, that makes more sense. I thought you meant to install this. - Not this specifically.
- Yeah. - (laughs) The refrigerant
lines going to this. - Yeah. Forgot about the other accessory boxes. We've got tubing for the drain line. - The neoprene. - The neoprene gunk that
we're gonna do somethin' with. Adapter doodadamajigs and more tape. - [Brian] Okay, so we have our unit. So with its mounting plates, the idea is there's supposed
to be ready rod goin' up. But instead, we're going
to put a block of wood here and some of the cantras that we used, and run a bolt through with nuts, and bolt it all together that way. And then the two-by-fours in
the ceiling would be here. So then now this will
rest on those two-by-fours and then we just screw it down. And it's not gonna go anywhere. - Now we've gotta figure
out where to put them. So, we're actually in two rooms right now. This used to be the closets
between two bedrooms, one on each side of it. But what we were thinking was, since we've got the
four ceiling cassettes, we should put one on each side. That way, if we or a
future owner of the house, ever wanted to close this back in, they would have separate
AC for both rooms. We could just go like right
in front of the closet. 'Cause I'm also thinking in terms of when these are individual rooms
and where the beds might go. You don't want it right above the bed. That sucks.
- [Brian] Yeah, yeah. - So, maybe like here and here? - [Brian] Yeah. - In the computer room, we've got the contents
of my attic to deal with. In terms of the location for this, I was kinda thinking away from the desks, like over in that corner over there? - [Brian] In the back here?
- Yeah. As for the master bedroom, I was kinda thinkin' here because this is gonna be
the only heating and cooling for that bathroom as well. So I wanted it kind of close by. - I would come out a bit, to be honest. - You'd come out a bit.
- [Brian] Yeah. - Okay, how come? - I'm just thinking in terms of airflow. - Sure. - You don't wanna be
right against the wall. - Okay, let's do it. Let's cut a hole in the ceiling. - [Brian] Which room do you wanna do? - Let's do the kitchen first. It's the one I care least about. - I'm thinking if we can kinda get it, you'll figure roughly where we want it, and yeah, just stick something up through. (Jessie laughs) And then looking from the attic, we know where we want it and
then we can cut the hole, depending on where the joists are. (screwdriver thudding) - [Linus] Oh, there he is. Hello, there, buddy. So you just want me to go
right up against the joist in line with that hole you made? - Yeah. - [Linus] Okay, I'm tryin'. - On each side, preferably. - [Linus] Okay, I'm workin' on it. - Work faster. - [Linus] I'm trying. Okay. (electric tool drilling)
Now I can't get it back out. - Try again. (electric tool drilling)
- [Linus] Thank you. - Try again.
(electric tool drilling) - [Linus] Thank you.
- Yeah. - [Linus] Okay, so there's your edges. Now what?
- Now we measure. - Okay, there's a template. See? Template. So should I screw into
the part like over here where we're not gonna be cutting? Or should I screw in right here and then I can go up and
see how close we are? - You can do that if you want. I mean, yeah, the screws are
long enough to go through, so. Did you hit wood or no?
- No. - Okay, that's a good sign. (electric tool drilling) - Nope.
- Good. - Okay, so that's a great sign. - Yeah. - As long as we don't
hit wood on this side then we're ready to rock. - There's gonna be a big
piece of drywall comin' down. - Oh, yeah. All right, I think we should be good. (Brian laughs) (electric tool drilling) - Didn't your mama ever
tell you to be kind, okay? Be kind to dummies. I should be able to work it through or someone should be
able to work it through? - [Brian] You should be
able to work it through. Work it back and forth until you're in, then pull the trigger. - [Linus] And you're sure
I'm not gonna hit the mains? - [Brian] Yes.
(electric tool drilling) - [Linus] He really does
have better tools than me. This thing is awesome.
(electric tool drilling) - [Brian] Aw, you're
right against the joist. So just follow the joist. - [Linus] Well, how do I
follow the joist from here? - [Brian] Just go straight with the saw. (electric tool drilling) - [Linus] Oh, boy. - [Brian] Do you need me to do it? - [Linus] No, havin'
way too much fun here. (electric tool drilling) ♪ Doo-Doo-doo doo-doo-doo-doo ♪
- [Brian] I got it. - [Linus] (screams) Yep, that's a hole. You know, it's cleaner
than when you get Dennis to just put his foot through it. (Brian laughs) - With the cover, though, 'cause the cover has to
extend into the drywall. So we have to cut the corners,
square them off anyway. - Well, what's the point
of that template then? - I don't know, it doesn't
make much sense to me. - [Linus] While Brian
fabricates some spacers, I'm gonna square off these holes, and try and get the vent to fit. (electric tool drilling) So stupid, just utter
waste of time, you know. - [Brian] Set a little mark. We use the same block as
our template every time. - [Linus] Stupid template
that your stupid thing doesn't go, ahh. - I'll just aim to go two sections. (motor whirring) - [Linus] Get another to include a bad one 'cause you're evil. Ahh, it's usable. Don't look that close to that one, Andy, I widened the hole. It was a full centimeter
short on one side. - Wow.
- [Linus] So I freehand-cut, shaved down that centimeter. - Nice. - [Linus] Yeah, I think I got it. - (laughs) I guess we'll find out. - [Linus] Yeah, we'll find out. - [Brian] So we've got spacers. - [Linus] Okay, cool. - [Brian] And brackets. - [Linus] Mounting bracket time, woo! Just gotta not fall through the ceiling. Oh, no, my good heavens. - [Brian] Through like so. Leave it just a bit loose, so that there with the washer hanging down can fit on here. (electric tool drilling) - [Linus] Okay, so would you trust that? Oh, yeah, okay. - [Brian] It's not goin' anywhere. - [Linus] I'm good. - [Brian] (laughs) I
was not expecting that, but it's not gonna come unmounted at all. - [Linus] Yeah, like the mount is metal, just to be clear, guys. The wood is a spacer. - [Brian] Yeah.
- [Linus] Here I can-- - [Brian] Rotate it. - [Linus] I can give you a hand with that. - [Brian] We're good, we're good. (electric tool drilling) - [Linus] Here we go,
moment of truth time. So, these things, we gotta kinda get it in at an angle, I think, here. - [Brian] Yeah. - [Linus] Oh, come on. Oh, there we go. - [Brian] Under, so now
we can swing these over and now it'll rest. - [Linus] I'm just excited. I'm gonna have air conditioning. - [Brian] (laughs) Good.
- [Linus] Okay. Can you tell me if you think that line D is gonna reach okay? - [Brian] Yeah, it's workable. - [Linus] Okay, it's not as
ugly as I thought it might be. - [Brian] (laughs) Well, that's good. - [Linus] Hey, Brian, I think next time we should make the spacers a touch bigger. - [Brian] Sure. - [Linus] So that this snugs
up a little bit more easily. I don't think it's the hole, but it looks like I can't
get up any further than this. Kinda wiggle it around. Okay, well, in the
meantime, this is kinda what it's gonna look like. I mean, it's a lot better than this, so. - [Andy] Oh, yeah, way better than those. - [Linus] Yeah, so there you go. We're focusing on the positive here. You guys missed day two of the
installing evaporator saga. We've kinda got a system now. We made our own template
and this is the last one. Then we are good to move
on to coolant lines, and power and charging. We're not that close. (air blowing) (electric tool drilling) - [Brian] You're there. - [Linus] A challenge we ran into here is that this area of the
attic is actually two-by-six instead of two-by-four. So our ingenious mounting
mechanism was defeated, meaning we need to use our
backup ingenious mounting system. - Handy-dandy ready-rod and bigger blocks. Now I just gotta cut this, yeah. (electric tool drilling) - [Linus] Oh, yeah. Now that we're done all the indoor units, the next thing is for us to
run the big main power line for the outdoor unit. That's the one thing that we
still have to hook up for that. - [Brian] There we go, yay, we're through. - [Linus] With the fish tape in place, now we're ready to run our,
what is this, eight gauge? - [Brian] Eight gauge, yeah. - [Linus] Yep, eight
gauge electrical wire. So that's from the box here
that goes to the tech cable over to my garage where
it plugs into the panel. Ahh. - [Brian] Ooh, you all right? - [Linus] Yep, that hurt. Yep, the roof's full of
nails and I backed into it. All good. - [Brian] Ohh, well, if you
leave a trail a red behind you, we'll know why. - [Linus] Yeah, yeah, yeah, yeah. I need to put my hookydoodle on here. - [Brian] I'm down here
ready to pull whenever. Hey, hey!
- [Linus] You got it? - [Brian] I got it.
- [Linus] Yay! - Ah, I just want this
thing to stay hooked but it keeps coming out.
(hammer thumping) - Two of the units are close enough to where the lines come
in that, theoretically, Brian should be able to
attach both lines to that one and that one. Then for the other two, ahh,
we're gonna extend the runs and insulate them. And this will all be
done in about 20 minutes. (Brian laughs) 45 Minutes.
- Yeah, we'll see. - All right, well, not with that attitude. Let's go, let's go. Okay, let's go, here we go. These fittings are good enough? They'll handle being
charged up with refrigerant and all that? - [Brian] Well, the copper is quite soft and the end of the fittings
are flared as well. - Oh, I see, so that's nice. - So, it's flared and then
the nut crushes the flare onto the rounded end. So it kinda goes like that
and the nut crushes it in. First, we're gonna have
to pull some of this back. - [Linus] Oh, yeah.
- So, I'll need a knife. - Oh, yeah.
- What kind of knife? - Well, you know what? Is it gonna do the job? That's what I thought. - (laughs) So, we're going to-- - All right, so now we cut
it, right, with the knife? No, we cut it with the--
- Not with the knife. - We cut it with the pipe cutter. - Yeah, very good, Linus.
- Yes. - So we're cutting this
off for two reasons. So, see there's the flare
I was talking about. I don't wanna have to redo that. So, on the end of our extension, I can take this whole piece and
just solder it onto the end. That also gives a clean end here that I can actually put a
coupling on and extend it. - I'll be in charge of the torch. - You can be in charge
of the fire extinguisher. - Okay, yeah, I can do that, as if it wasn't friggin'
hot enough in here already. (soldering tool squeaks)
- [Brian] I know, right? So, see, it's just red. - [Linus] Oh, yeah, yeah, yeah, yeah. - [Brian] Just starts to get cherry. - [Linus] Yep, blow that puppy on there. Okay, no, no, I got this. I got it. Oh, yeah, these go on pretty easy. I'll straighten that out a bit for you. - [Brian] Thank you.
- [Linus] How's that? - [Brian] Thanks, buds.
- [Linus] No problem, bud. So I'm just cuttin' these so that I can put my little cable management strappydoodles in here. (electric tool drilling) How much are these rolls of copper? - [Brian] The 3/8 for 50
feet was, I think, 50 bucks, and the quarter was like 40. - Okay, ao it's like a hundred bucks if we only use one of each size. - [Brian] Yeah, 90 each. - Friggin' awesome.
- [Brian] Yep. - This keeps getting cheaper all the time. Little does Brian know,
I'm not even gonna pay him. - [Brian] (laughs) Let's
roll out some nitrogen. I wanna watch your face, Linus. (laughs) (air pops)
Ah! - The lines are finally all hooked up. It's pressure test time. If nothing leaks, we're close, right? Electrical to the four units and then the big run
into the garage, right? - [Brian] Yeah, and drains.
- Yeah, the drains. - [Brian] We have to do the drains. - And the vacuum and the charging. (sighs) - So this is high pressure nitrogen. We connect it through the gauge set into the part of the
system that is all new and that we've run. We charge it up with
nitrogen, a few hundred PSI. Then we go and we check
all the joints for leaks. Basically we have to pressure test and evac each zone individually. With the manifold they've got, we can do two zones at a time. So I'm thinking if we do A and D, that'll be the two closest ones. - [Linus] I'm sure that'll be quicker. - Yeah, and there's no
solder joints or anything on those then, right? - So it's probably fine, probably. - Then once we know that's
good, then we can pressurize-- - [Linus] B and C. - Yeah, B and C, and test that. - Here we go. Oh, please tell me it's
not threaded differently. It is.
- [Brian] Are you kidding me? - Finally ready, I hope. Here we go. - [Brian] Moment of truth. - Moment of truth. It's Sunday again so there's
no fixing it if it's not right. Oh, my God, it's not going on. It's going on, oh. (Brian laughs)
You dick. The plan today is to
pressure test the system, then get up and finish up
everything we can in the attic before it gets too hot up there, because last week was very unpleasant. - [Brian] After everything is done, we can add the last
little bit of refrigerant because we extended the lines. And we'll see how much nitrous she takes. - [Linus] And it's leaking already. - [Brian] Nope. This got it.
- Okay. Okay, if that's how tight they need to be, then any of the ones I attached upstairs are probably leaking too. - [Brian] (laughs) That's quite possible. - Should I just go up
there with the soapy soap and a wrench? I mean, wait, if the pressure's
not going down, then-- - [Brian] We should still check. There might still be a slow leak that would show up with the spray, but it might take hours
to show up on here. - Got it. - Want me to come up
too, or am I just gonna-- - I think I can do it. I'm not seeing any leakage. Let me just check the
other side real quick. Tryin' to be real thorough. I don't want a leaky system. Now that we've pressure tested, you're hooking up a vacuum pump. So what purpose does this serve? - It'll serve to evacuate
any nitrogen that's left that's non-compressible. The other purpose is to
pull any moisture out that could potentially be in the system. (motor whirring) - And it's gone. - Well, then at least then
this can sit out here and run while we do other things in the attic. - I still can't find what any
of these additional fittings and like plastic adapters
and stuff are for. And some of it's not even
here in the accessories list. - So we'll use this stuff for the bulk of the drain runs. Pull an end, we'll sleeve right over top, and then I have clamps. So that can go over top, you can clamp it and just use one short little section to come directly off the unit. - [Linus] This doesn't
fit into the unit at all. - [Brian] Okay, so there's
gotta be an adapter or something to go with those. (electric tool drilling) And that'll go in there and
we'll put a clamp on there. - Big relief. We figured out how this
stupid thing works. So this does indeed go on the unit and then you kinda crush
it closed like that. And then you can see the
inner part there, right? Can you see that? Okay, so we tried Brian's idea of moving the worm-drive
clamp back a little bit and seeing if we can grab
onto the tubing, okay. (clamp clacking)
See, we're good. (electric tool drilling) - Last clamp's on. Now we can go downstairs. - Okay, let's do. Let's get out of here, it's hot. I'm gonna do these and Brian's gonna do the
big, heavy Lumax downstairs. But first, Brian's gonna
show me how to do these. So that is gonna go and
clamp down there, right? - [Brian] Yeah.
- Okay. See, I can do this. ♪ Linus the Electrician ♪ (electric tool drilling) ♪ Such a helpful man ♪ Ahh, get in there. Yeah, there it is. All four upstairs units are done. - Nice. So, moved a few circuits
around in the panel to make some room to get this guy in. So now we have to sleeve
it with some armor because it's going to be
surface coming down the wall and it has to be protected. Once it's in the wall, we
don't need the armor anymore. And then we can enter it
into the panel, wire it up, and then we can turn this thing on. - Oh, yeah. This is where we add more gas. - [Brian] Yeah. - So we added 47 feet of each length. - [Brian] Yeah.
- Hold on a second. You just have a scale.
- Yeah. - [Linus] And then you just run the gas in until the scale says-- - [Brian] The weight--
- [Linus] The weight, oh. - [Brian] That we need. So, and hook the disconnect
up and go give it a try. - Really? That's it? I mean, not like that's it,
like this was horrible, but. (Brian laughs) Moment of truth. Is this gonna spark? (electrical beeping) This is some very room temperature air we've got goin' on here. - [Brian] I mean, this valve is in. I'm wondering if maybe we need
to open that the other way. - We just broke it, didn't we? - Nope. If that valve is supposed to
be open, it's probably gone. I don't have any refrigerant flow. - We opened up some things and we're hopin' for the best now, boys. (electronic beeping)
It's working! Yeah, this room is air
conditioned AF right now. Oh, this was so much more work than I thought I was gonna
be doing to this. (laughs) This room I can already
feel a difference for sure. 'Cause it's got this window,
it gets so hot in here. Oh. - [Brian] So did I earn
my water bottle? (laughs) - I'm sorry? - [Brian] Did I earn my water bottle? - Oh, yeah, yeah, yeah, ittstore.com. He gets a free one. You guys gotta pay for it. What's in your online security tool kit? Adding a VPN lets you mask your IP and encrypt traffic to
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Android, iOS, and Linux. If you guys enjoyed this video and ya loved watching me
and Brian screw things up and him fix it, (laughs) maybe check out the lounge wiring video. That was a pretty good one. I ended up getting hurt pretty badly. But other than not, it was fun. - [Brian] It wasn't that bad. - It hurt a lot. Hilarious. Both of these are leaking. So, we got a couple of things wrong and I just wanna give y'all
a little update, okay? So these neoprene packs, we
figured out what these are for. These are for doing a real fine job of getting' the fittings totally air-tight so they don't sweat from
the moisture in the air. So we got that sorted out. And, oh, also, almost every single one
of these joints leaked. Oh, where's the camera pointin'? Yeah, there you go, those ones. We used some plumbers putty. And then what we're
probably gonna do is go back and just get a proper
like hard mount adapter to bring this stupid thing
down to something reasonable, and then run that straight
to our exits here. Because, as it turns out,
it is a ton of condensation that comes off these things. Those long lines filled
up in like two hours. Oh, wait, the last thing, yeah, all these little straps and stuff, those gotta be perfectly sealed as well. Yeah, no air. No air touches the lines.
Okay forget about the socks&sandals, he has POPCORN CEILING! 🤢
I didn't see how you would clean out the condensate lines. I know where I live I need to pour some distilled vinegar in it to keep... stuff... from clogging up the works. Fortunately for me, my air handler is in my garage.
He's so fucking done