This video is brought to you by Sportland Quality Integrity and tradition. Oh boy. Duck detectors, right? Okay, so service call today is they had a fire inspection and on the report for the fire inspection it said Air Handler Number Two Duck Detector fail. That's the only notes.

Oh no and then it says will not Exercise I Have no idea what that means doesn't mean anything to me. So what we're going to do? Um, they don't have air handlers. they have package units. so an Rtu.

but I think I understand the point this is Rtu to there's a duct detector way over in that corner you can kind of see a green light. I'm going to climb over there and we're going to have a look at it. but I'll be honest anytime. I Get duct detector calls.

Typically it's best. unless it's an obvious problem. It's best to schedule a Meetup with the Fire alarm Company. Now here in my area, the fire alarm company does not deal with the duct detectors.

We deal with them. We install them. They land their alarm wires in them, but we service them. You know that kind of stuff? They just make sure that they're actually triggering and tripping when they're doing their fire inspections.

I Know, in some other places you're not allowed to touch them. whatever. but here we take care of them. So I'm going to climb over there, just visually inspect it as long as there's nothing crazy.

We're just going to, uh, schedule a meet up with the fire alarm company and when I do schedule a Meetup I'll bring duck detectors with me just in case and they'll bring the resistors for their end Aline resistors and we'll go from there. So let's climb over there. So I climbed over here back there is where I was to this duck detector. First off, I'm going to tell you this is the dumbest placement of a duct detector.

Okay, I don't really really understand why they would put it here because this is my electrical penetration for the roof. I could literally take this alarm wire, run it up through that hole, and be in the package unit and the same thing with the test and reset wire right here. And in fact, one of these wires should be going up to the AC too. So we are going to talk to them about getting these out of the attic and getting them relocated up into the units where they are accessible and go from there and I will.

I'm a little worried too because there's a sampling tube right here I Don't know. Oh, looks like there's one in there? Yeah. I think there's a sampling tube in there, but yeah, this thing's just completely inaccessible right here. The new duct detector is going to be a different model.

We'll use a system sensor one cuz that's what's readily available where we're picking our materials up and stuff. So yeah, I'm going to talk to corporate and talk to them about relocating these up into the air or into the package units themselves. so that way we can actually get to them, we come over here to the unit. This is the one that I was looking at the duct detector.

If we open this up, this right here is going down so we should be able to pass some stuff up through this. No problem. In fact, we've got wires right here. um, smoke or those are going to be.

Let's see, number 21 is going to the duct detector right here. This is probably powering the duct detector going down to there. Yeah, we could totally do this. We can make this work.

Um yeah, I don't see a problem with it. So like I said, I'm going to contact facilities and I was looking. That unit right there is also very. it's in line with this one that same Scuttle access right there is where you get it and then the kitchen unit over here is where.

uh, this one's above ceiling tiles so we can get to that one. So as long as facilities will let me, I'm going to go ahead and relocate this and I'll do the work pulling all the wire and then I'll just let the alarm company come and verify that everything's working properly. Maybe Supply me with new resistors for the end Aline Resistors I Was able to convince the customer to go ahead and let me relocate these duct detectors and replace them all. So we've got three duct detectors I've got one right back here.

What we're doing is: I've got technicians helping me and we're going to run new wires. so we found the ceiling tile to access this spot now. I'm going to climb over to the other side, find the ceiling tile that's best to access that detector and we're going to start on pre-running the wires up to the roof and relocating the detectors up there. that way they're easy to troubleshoot.

Come with me and you be in a world of Osha violations. Okay, this is nuts All right. So I came up here last time and I was like, why is this duct work all crooked like this Like it's see, it's like crooked. Well I'm looking back here.

There's a cover to a duct detector right there just laying down, but there's a cover on that duct detector back there. If I come over here, you can see the strap. see that strap right there, see right there. and then there's one right there.

Someone cut all those straps and they laid on top of this shimmy back there and change that detector. My problem is I'm trying to find a way to get new wiring down here so I can splice it in I believe it's right back there where those conduits are, but I can't get back there I'm The only thing holding this duct workout up right now is the fabric duck connector over there and this one strap that's just nuts. That's sketchy and we've got a giant supply duct running over here. the whole length of that area over there.

This is just ridiculously dumb. This is why I want to move these detectors All right? I'm getting to the point where I think I can make this work. so this is I came over on the other side of that duct work right cuz I was trying to get over there. can't do it.

this is one of the thermostat wires coming from the unit and this right here is the other ones. So now that I can get to those points, I can push wire down that conduit to here and connect it to where I need to I still have to get over here cuz over on that wall is a white and a red wire running right there. I got to splice that too. This is a tricky one so we actually found that there's a pull string in there.

Okay, so what I'm going to attempt to do is tie my red alarm wire to it and we're going to try to pull it through. If that doesn't work, then we'll grab this conduit, take this out completely and pull a brown and a red through. But I can actually utilize this brown right here and I only need an extra red alarm wire going up if I can do it that way. This is actually working better than I thought So on the other unit.

I was able to grab this string this pull string that was left in there and pull up the red wire. So we're doing the same on this one. This is another one. so if I can get these red wires pulled up and ran, then we can start splicing them in and that makes it a lot easier.

So that's the idea here. All right. So that worked. We were able to get and I have plenty excess here.

So the idea is that we're not going to connect this. We're not going to deal with this. We're going to do a scheduled meet up with the fire alarm company, but I already ran the wire up to the roof. We can go ahead and land it at my smoke detector, but it's going nowhere.

it's not being monitored. Then when the fire alarm company comes, I'll be able to go up here, grab that wire right there, going down, cut it which actually goes right over here, splice it in a safe way to this guy right here, and then we'll land his new resistor up on the roof and then we'll be able to connect that and then we'll do the same for the other unit over there. Um, I Guess we're going to do their kitchen AC now too and get this ran. and then once we do that, then we'll continue our work up on the roof.

So what we were doing was pulling this wire up to here. Um, so we got that up now and that'll make it easier on Startup day. Now what we're going to do is we're going to do the smoke detectors and we're going to get them set up. So the these smoke detectors right here.

they come into pieces right? So we're going to separate the two. We're going to put the detector head in the return air section and then the control head in the electrical section and we're going to start pre-wiring this, but we're not connecting it to the existing fire alarm. We're going to save that change over for a scheduled Meetup that I'm going to have with the fire alarm company. So I'm just re pre-running the wires, getting them ready, and then we're going to let the fire alarm company be responsible for ensuring that the wires are landed correctly on the detector even though I know where they go.

But basically I want them here to be the ones that you know say that everything's working correctly. So when you pull the covers off, you can do a couple different operations but these wires can be removed and we can splice and you know, locate them separately. So all I got to do is take out these screws and then the whole thing will completely come apart. That's what I really like about this detector assembly and this is a system sensor.

Got to be careful because there's different ones. The 4120 the one that says smoke SD is a little bit more complicated because it doesn't have the terminal screws. It's a little different. So I Like this one, we have a wire ran from the control assembly all the way through there, all the way over there into the control assembly.

We have the detector um, sensor right here and we're going to splice the wires into here. That's what this is for. We just ran the sampling tube all the way through, it goes all the way to the other side and we have the holes in in the Air Stream So Basically the air is forced into these holes goes into the detector head and then because of gas getting in the cover, it's then forced out through the the sensor right here through this guy. So you have to have this guy in there too.

That's the exhaust tube, so it really doesn't matter which side goes where, just as long as you have the exhaust tube and there needs to be a red cap in the other end of that down at the very far in, there's a red cap. So we're going to get this spliced in now into here. We're going to pull this thermostat wire through that same hole, put the splices right over in here, then this will be wired in, and then we'll get over to the control assembly. We're currently working on getting the detector, so we got the sensor wire ran right and connected right in here.

That's the sensors and the tamper sensor and the the detector head. And then now we're doing power. So Black and Red are going to be our power. They go to 9 and 10 and then the other two is going to be our switched leg.

So what we're going to end up doing is this: yellow is going to end up going to 24 volts and then and um, we'll put it at the terminal board over here. and then Blue is going to be the wire going to number 21 on this Linux L Series Unit 21 is our smoke detector input. so it's looking for a 24volt signal. If it sees it, then it does.

Emergency unit shut down. So yellow is going to go to 24 Vol r at the terminal board and then Blue is going to go to our, uh, our uh, switch leg. So what we're going to do is we're going to grab one of these contacts. We do not want to use the supervisory.

We do not want to use the alarm because the alarm goes with the alarm panel supervisory. That's a confusing one because everything's backwards on that one. We're not going to worry about that. We're going to go to Ox A.

And so basically, um, yellow is going to go to C as in common because these are dry contact. So even though we're powered 24 volts right here, this contact has no interconnection over here. so we have to power this contact. So Yellow is going to go to our C for for a common terminal on that contact and then we basically want Blue to go to 17 for normally open.

So that way if there's a fire condition, it closes common to normally open and sends a signal to my Uh unit to say there's a fire now. I'm working with other people and I'm showing them how to do it. So in this situation, I'm going to help them with this one unit and then I'm going to leave them and let them do the other two units. So this one right here.

this guy's wired in, it's done. The cover's put on, you got to make sure that it seals and everything like it is. We're good, and then we've got our extra wires right here. That's fine.

We just lit a little extra just in case it's ran up and over all the way through the unit into the control section. So we are done here. So we're going to put the cover on, close it, and then finish up the control wiring over here. Got Robert over here working on getting started on this one and then this is their kitchen.

We'll do that one last cuz we can shut that off when they're in operation. Our efforts are going to be to try to keep the dining room and the bar running when they have customers in the building as much as possible. So those are the first two units we're tackling. Usually either I'll WR on the unit right here or we found the unit instructions where it tells you what every wire does.

Okay, um, there's actually more than4 volt terminal on here, so that's good to know because we're actually requiring a couple 24volt wires. So we move things around so we're getting everything wired up. We're going to wire in the common to number seven, which is right here. the 24 volt common.

Now when I We got to be careful because we we I said common when we were talking to the context too. There's common when it goes to 24v power, right? That's the other side of high voltage. And then there's uh. then there's common for a contact too.

We want to be careful not to confuse the two of those. Well, we just applied power. Okay, now what we're going to do. It's actually this one right here.

Okay, so when you apply power to these guys, uh, nothing blew up. Okay, the circuit boards, the unit, the indoor blower motor turned on, contactor pulled in right there. This guy's now wired in now. You got to give it a minute when you start them up because this one's in like a startup sequence.

So it's flashing. Uh, orange, green, orange, green. Eventually that'll go away. It just did and it's just going to go into a green mode.

So now it's in its normal condition and what we're going to do. We disconnected the existing smoke detector wiring temporarily right now, right? cuz the other smoke detector still wired in in the Attic because we're just doing everything we can. Now if I hold this down, it should put this into a smoke situation, simulating a problem and our unit should go into emergency shutdown. So I'm holding it.

Okay now we got a red light. All right. And then we come up here and right there we have a number four. number four if you come over.

Here is smoke Shutdown Smoke Alarm. Okay, so what we just did was we proved that we wired in this guy. Now we hit this, it resets and the smoke will eventually go away after a second. Right on that.

All right now. What we did was we proved that this guy is wired back in. It just went off and it went back into normal operation. This guy's wired in.

Now What we're going to do is we are going to, um, go ahead and connect this blue right here back. So that way the existing smoke detector will shut down the unit because the fire alarm is tied into the existing smoke detector downstairs right now and we don't want to change that at this moment. We're just pre-wiring these units, getting them ready, and then next week. I'm going to schedule a meet up with the fire alarm company and that's when we're going to tie in the fire alarm to this guy and the test and reset stations to this guy.

So that way we can manually turn them on and off downstairs and not have to come up here to test them. So at this point I'm done. I'm going to let the guys finish the other two units. We've proved that this is good and we'll put the cover on.

and uh, we'll be back next week when we meet up with the fire alarm company. All right, we are back Today My guys did the other two units, got the detector is installed. Uh, we ran out of time because we're working with an operating restaurant so we had to take our ladders down and put all the ceiling tiles back. So we're back today and we need to do the wiring for the test and reset stations that allow you to reset and test the detector from in the manager's office.

So we're going to pull a new wire up to here and then we have to intercept the wires down at the uh old detectors that are going into the office and we'll just do a splice in the Attic this one again we have. I'm thankful for these installers because we have another wire another uh pull wire going into a conduit with nothing in it. So we're going to pull a wire thermostat wire up through that conduit right up into this unit. All right because I can get to this detector.

I'm able to get in here and just unwire the test the old test and reset station and then we're going to try to use this wire because it's floating loose in the attic and we're going to pull a new thermostat wire and do a home run. That's our plan, at least let's see if we can make it happen. Okay So we have the unit um, wired in, the test and reset station wired in and I have someone downstairs and he's going to trigger the system now and we're going to hope it gives us a smoke signal there. Okay, there we go.

Smoke Signal four. All right. go ahead and reset it. We should be going away.

It just reset. It'll take a second for the AC to catch up. There it goes. And then last but not least, I'm going to trigger it here by holding this down just a second.

All right now. I've triggered it. It shut the unit down and he's going to reset it. Go ahead from down there.

So we have three different modes that this thing can trigger and he should be able to reset it all from downstairs see if it goes away and it just went away and the AC just came back on. So we have successfully wired the test and reset stations. Now we're going to check the other two ACS Now while we were doing this testing, we still have the other detector wired in down in the Attic So We disconnected the the wire signaling a fire condition or AC shutdown for the other detector because we didn't want any weird back feeds right? so we got to connect that back in. Now for now, they're going to have two detectors connected until I do my Meetup with the fire alarm company which will land his wire in here and then this will become the primary detector.

The other one will get unwired and just completely disconnected. So that's it for this. Until we meet up with the fire alarm company and do their scheduled meet up. and now we have these individual test and reset stations: bar, dining, and kitchen.

The light will light up if the smoke detectors tripped and they got keys and all of them. So like I said, we're good until we meet up with the fire alarm company. Sometimes as happens it's annoying as all get up is that the alarm company never showed up today for the scheduled Meetup So we went through all the proper channels. We wanted to have the fire alarm company come out, land their in the line res resistors and my new smoke detectors that I installed and then confirm the entire system was working correctly.

We contacted the corporate office of the restaurant chain I'm working with, let them schedule it through their account manager at the alarm Company. The account manager confirmed it. We then got an email from another person that confirmed it and then we talked to someone on the phone that confirmed that an alarm Tech was going to show up today at 7: A.m. it is currently 9:15 a.m.

and I called the alarm company's dispat batch. They found the service call and they said it was never assigned to a service technician so someone dropped the ball. It's frustrating like it does happen, but good gosh. it's frustrating because I wanted to finalize this job and be done with it today.

And here's the frustrating thing: I can finish this job I can go land their wires I can grab the resistors out of the old smoke detectors, put them up at the new smoke detectors. but I really want the alarm company to do it because then you know they verify and certify that everything's 100% like I know I could do it, but it's one of those things where nah I'm not going to I'm going to follow the proper procedures, but it's just a waste of my time. I have a lot of other jobs I could have done today. You know my mornings are crucial doing restaurant Refrigeration Your mornings are everything because it's how you.

You know you get the most important jobs done first thing in the morning and can't do this one. So frustrating, but oh well. We'll schedule for another day. All right.

So my alarm Tech showed up today. so now we're just going to go ahead and land the new alarm wires and put his resistors on here. And then we're going to splice in the attic and tie in his system and then test it to make sure everything's working correctly. We already know that our detector works all ends, test and reset stations, and everything.

It shuts down the unit. We just need to bring in the fire alarm. now. despite my best efforts to warn them and tell them to bring resistors, they don't have enough.

So I'm going to have to pull the old resistors from the old detectors. Kind of frustrating, but oh well. All right, they showed. We got it hooked up.

Their alarm wires are now landed in here with resistors and they labeled them with their alarm Zone wiring and we've already tested them and everything. So these units I Just disconnected the old duct detector cuz we still had them wired in. That's right there not being used. So now we only have the one detector and we're good to go And it's the same for the other 2.

ACS Also, we are good to go. They're all labeled now with their Zone numbers. Like I said, we tested them. Everything works.

Going to give them the keys and tell him to keep an eye on it, you know, duck detectors used to confuse the heck out of me. Uh, it kind of became something that I finally got sick of not understanding. So I just dug in and dug in until I figured it out. and then you realize that there's really not a whole lot going on when it comes to a duck smoke detector.

Okay, it's really there to Signal or to sense smoke. And when it senses smoke, it does something right and it has different contexts inside of it. I've got several videos breaking down duck detectors. Uh, there'll be a link in the show notes to this video.

Uh to another one where it really simplifies the wiring and everything. But I mean really? all you have is a control module ual that takes some sort of an input power source usually 24 volts, sometimes 120 volts. You know it just depends. And then you have a bunch of dry contacts that react differently.

So you the ox a the ox B contacts. They're just as they stand. They have a common normally open, normally closed. Those are dry contacts meaning that there is no power source to that contact.

So you have to bring in a power source in order for the contact to do something. So you bring in a power source to the common terminal and then whatever reaction you want to have happen from the normally open or the normally closed will happen depending on how you wire it. Now one thing I will say is that on the contacts sometimes you have a treble contact and or a supervisory contact those two contact or those contacts. Uh, typically from what you see the smoke detector or the duct detector, they do the opposite.

Um, because the the common normally open and normally closed are represented in a trouble mode or a supervisory mode. Okay, so as the duck detector stands in normal operation, if there's no problems and everything's wired up on the Oxa contact, you know, uh, common to normally open is going to be normally open with nothing going on right. but on the the supervisory or the trouble contact, it's going to be the opposite. Okay, and so basically what it represents normally open is in a trouble condition or any supervisory condition I've got.

like I said, several videos. you guys can watch those and it'll explain it. Okay so we went ahead and we had to work with an existing operating setup. Everything was wired in.

They said they had a problem with the duck detectors I couldn't figure out what it was. in fact I never got to see whatever the alarm. Tech said that was the problem and the alarm. Tech that came out to help me to finalize the wiring.

had no idea because he wasn't the responding Tech that wrote those notes. so it was just a big confusing thing. But all I know from experience was if we were going to try to troubleshoot an issue with those detectors, it would have been a nightmare trying to troubleshoot it in the attic trying to figure out where the problem was. Let's just nip this in the butt, move it on up to the the roof where if there is an issue now, boom, we can stand up there at the unit panel and troubleshoot everything we need to troubleshoot and it's all super accessible and easy.

Okay, it's ridiculous. Some of the installation locations that you see for duct detectors. most of the time they're completely inaccessible and it's just nuts. Okay, that or they 20 ft up, you know, suspended in the ceiling where you can't get to them.

Put a duct detector on the roof. Depending on what brand you have, you can mount it inside the unit. You can mount it on the outside of the unit. Get a protective cover.

One thing I will say they do make waterproof duct detectors. They suck. Okay, make sure you still put a protective cover I Don't care if it says outdoor rated waterproof, they still have intrusion issues. Put a cover over that duct detector.

Once you put a cover over it, you'll be good to go. All right. So you got to see the process. You got to see me going through having to work with an existing system.

I Left the existing system in operation the entire time in a perfect world. I just ripped everything out and started over and wired them the way that I wanted. but I needed this system to be operating and protecting the Ducks monitoring the Ducks the entire time I was installing the new Duck detectors. so we left it in play and that's why we had to do it.

and that's why it took so long. In a perfect world if I didn't have to deal with customers and you know, uh, my ladder being in their way and all that stuff I'd have gotten this all done in a day. no problem, no sweat alarm company there. Boom! We would have done it all and gotten it.

but often times when you're working in restaurants you got to work with existing systems. You have to work with their operating Windows you know? so we can only be having ladders in their waitress server line. you know, for 2 hours in the morning 700 to 9, 7:00 to 9:30 a.m. and that's it because then the servers got to come in and start prepping their server line and you know and then by 10 11:00 they've got customers in the building.

so then they're walking with food where I'm putting my ladder and like that doesn't add up right? So dealing with restaurants is this whole you know new thing that you have to understand. So when I said in the video I've been here for 3 days, it doesn't mean that I've been there for 3 days, at 8 hours a day doing that. No. I Was there for a couple hours with another tech and then we left and then came back for another day.

A couple hours. You know, just a little bit out of time. All right. I Really, really appreciate you guys making it at the end of the video.

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