Hello and welcome to our presentation today we’re going to talk tankless before me here you see a couple of tankless units we have laid out these are both staged up ready for inspection and pre plumbing first thing you want to do when you receive your unit is you want to open it up check-in it out make sure it’s in good shape make there’s no problems with it and make sure you have somewhat of an understanding of it also you want to make sure you get all the all of the paperwork and gather all the accessories that might be located in that box with the appliance the next thing you’ll want to do is inside you should find.
What they call a template the template is a representation of the unit itself and it helps you to hang the unit on the wall and gives you basically a template that you would mount up onto the wall and plumb it all up once you determine your location of where the units gonna go then you can install your backing and all the supports that you would need to actually mount the unit from there I’m gonna take you around the side here we’re gonna do a little pre plumbing okay let’s do a little pre plumbing so the first thing you’re gonna do is remove your desk caps that were on your unit protecting it from any bad things that might get in there that’s most units come with those already on it next thing.
You’re gonna do is you’re going to do what we call a little bit of thread sealant or teflon tape I kind of like a combination myself of a little thread sealant called teflon paste combined with a little teflon tape on top so important you don’t get anything inside the pipes you want to make sure you keep it outside the pipes on the male threads and you apply a little bit of thread sealant pretty much all the way around it same thing on the other side so you’re doing your hot and your cold and you’re gonna go ahead and do the same thing you get another connection here for your gash gonna do the same thing on that and again making sure you don’t get anything inside the inlet of the pipe and if you do keep a rag handy you can always just wipe it away and keep it cleaned.
Because again you just don’t want anything in the pipe there’s lots of little valves in there and intricate flow things that that you don’t want to have any impurities or anything getting caught in there it’ll create your problems down the road now you go to your teflon tape teflon tape bending on the thickness of it and you’re on the width of it will depend on the rounds but basically you start it on hand bring it around gently four or five rounds is generally good again it depends on the thickness of it and how well it goes on for the most part you start it that sealant helps to lock it down a little bit hold it in place and then again keeping this on the outside the threads not letting it get inside the threads you don’t want any little pieces of tape or little chunks of teflon paste or pipe dope or whatever you have to be using getting caught in your unit whether it be the water inlet or the gas Inlet okay from.
Here you’re ready for hardware now you’ll take your hot water valve you’re gonna pull this out of the box the handles gonna be a little tight so you’re gonna thread a nipple into it I’m going in nice and hand tight grab the handle itself work that handle back and forth just a quarter turn is all it needs to go and that way you’re exercising it loosening it up okay now you take that valve gently thread it directly on to your hot water outlet of your tankless unit and again you can throw edit the majority of the way by hand you don’t even need to put a wrench on it until the end so you can leave that last turn now you want to take your backup branch and protect the outlet of that tankless water heater so you don’t put any undue stress on that take your other wrench and bring this around.
One last turn and you can feel it it’s getting nice and snug which is exactly what you want now I’m gonna leave this one just a little bit shy of the other one depending on what my positioning is gonna be just to make it easier for me now I’m gonna take my cold valve I’m gonna do the same thing with that I need to wind my nipple in and I need to loosen up this ball so you just work that handle back and forth loosening it up making sure everything’s working and doing what it’s supposed to do now gently thread that one then again for the most part you can thread almost the entire way by hand without even putting a wrench on it once it starts getting pretty tight that’s when you want to deal with it as far as putting a wrench on it not wiping yourself out if it’s hurting your hand.
It’s getting pretty tight now we’re gonna go ahead slip our wrench up on the backside but because we’re reduced on room on this backside I’m gonna go ahead and show you a little trick here where you want to prevent this outlet on the valve from rounding or overlain so you’re going to thread a nipple into it to protect it and then you can use your wrench on the backside here and push this down position continue your positioning of the cold water valve now we’re gonna take it yes pass that inlet for the gas so there’s no conflict there and as you can see we’re a little further than we are on this valve which is okay he’s not a problem now you’ll take your up other fitting here for your gas and we’re gonna thread that on little adjustment and again good and snug doesn’t have to be super tight you don’t want to break wrench trying to tighten the thing up let’s get it tight as you can see you don’t see a lot of strain on me now.
I’m at that point that I’m as far as I want to go that it feels like I’m getting a little resistance so now I’m gonna put a little backup you switch out here I’m gonna use my channel locks and I’m just gonna back this connection up so I don’t strain it or stress it and give it that last little turn just to make sure it’s tight okay now from that you want to take a look at it and see if your how your alignment is on your valves you’d like to have these parallel so I’m gonna go ahead and make a little adjustment here just to get these valves in a little cleaner position about right there I’m leave it there for now that looks pretty good good clearance good access to the handles a little bit out of whack I can go a little further if I like right there and that looks clean enough now from there you would depending on what you’re roughing is you need to run a nipple extending out of each valve and that’s going to make your final connection so with that I’m gonna take a little bit of teflon paste I’ve already pre plumbed mice rough-in.
So I know where I want to be with it and I know that this nipple here is going to be absolutely perfect for what I’m trying to do you can take your teflon tape so a really easy way to do this take one finger place it up here take your other finger place it down tuck it into your paste now you see the paste kind of holds it and now you start your line on it locking it down pulling and stretching then you can try to stay out of the inside of the peple right on the exterior of it like so and again a little bit of paste not a whole lot just a thin layer just enough to hold your tape in place and I kind of like to reverse it as opposed to forward forward would be the other direction coming this way it just seems to make it a little easier to keep that tension on it give you a nice tight wrap roll those in always keep your rag handy you always want to wipe your hands down or you end up getting teflon paste and whatever do you’ve gotten on your hands over everything which is never good okay now we need to tighten up this nipple so on that again we don’t want we’ve got our valves off position where we want them so we might make sure they don’t move.