Hi my name is Chris Rizzo technical trainer for Bosch thermal technology and today we’ll be covering the installation of a c12 10 es the C in front of any model number for any of our tankless water heaters designates that water heater as a condensing model once you get your water heater and you’re looking at the side of it always make sure you got the right water heater that you designed for the next thing you want to make sure of is that.
It’s the right gas type if you ordered a natural gas it should be labeled on the label itself as you’ll see here this is a natural gas unit and the ng symbol is located here on the label the number in the model number is derived from a maximum flow rate at a 35 degree temperature rise the e in any model number is a reference to the electronic ignition and the S is for sealed combustion if any model number has a c before the maximum flow-rate number then that model is a condensing model if any unit has a c at the end of the model number then that unit is a designated commercial unit and has a maximum temperature of 180 degrees the next thing of course is that you’re going to want to get the the unit out of the box itself so the first thing that you’re going to want to do is you’re going to want to open the top of it everything that you need as far as vent adapters if this is an indoor unit will be located in the top of the box so once you open it what you’ll see is the intake vent adapter exhaust vent adapter the gaskets will be located inside this bag as well as the screws so you’ll have your two gaskets this is your intake gasket this is your exhaust gasket so you’ll have those inside the box and always make sure.
That those are there as well your mounting screws for the bracket that will be on the wall behind me the next thing that you’ll want to take out here is the other mounting screws exhaust and adapter one of the more important things that you’ll want to take out of here is the instruction guide this is your manual that will come with the unit once again it’ll have the model number at the top the c12 10 es also comes in a commercial model which is the ESC residential models go up to 140 degrees commercial models go up to 180 this is the largest tankless condensing water heater on the market with 225 thousand BTUs the best way to register the unit is to go to the Bosch way to grow website and register your install there I would highly encourage this as the website is full of sales offerings great prizes and leads for your company it’s a great way to grow your business and to partner with one of the world’s biggest appliance manufacturing companies the alternative is to fill out the registration form located in the box that the unit came in we’ve got that inside another thing that will be located inside the top of the box where the styrofoam is the hanging bracket.
This is what you’ll mount on the wall you’re going to make sure that it’s level and I’ll show you how to do that you’ll mount this on the wall and the unit will actually hang from this particular bracket the holes on this bracket from this side to this side are 16 inches on center so you’re going to want to have a stud finder whenever you’re hanging this particular bracket if not this unit weighs 80 pounds you’re going to want to get something that will anchor it to the wall that’ll be able to hold that particular weight if you’re dealing with a concrete or a brick wall you’ll want to use red heads or something like that but if it is just a residential install you’ll want to find those studs and put this bracket on it so let me get this out of the way and there is a little method to the madness as far as taking the unit out of the box –set online install stuff off the sign here also the mounting screws for the vent adapter bracket or for the vent adapters themselves are located in the top of the box as well.
They’re kind of small they can get lost so you’ll definitely want to put them somewhere safe where you won’t kick them or drop them in the dirt or anything like that but they definitely come with it now the easiest way to do this is to cut the bottom of the box now fold the top up get in that way the bottom you don’t have to worry about scratching it there is another styrofoam that’s at the bottom of the box and you can go as deep as you want to so long as you don’t really go any higher than about two inches take this guy out him off to the side and that’s the easiest way to tank out a Bosch tankless water heater now the next thing that we’re going to do in this process is take our hanging bracket will also need a level and you’re going to want to find the studs in this particular case we’re mounting it on a brick wall so no studs are necessary but I still want to make sure that this thing is level so put him on the wall you’ll want to make the height of it about 66 inches or so this is a perfect height for any service that you may have to come back and do getting access to the actual isolation ball valve kit this will just make your life a whole heck of a lot easier so just take your level make sure that it is exactly level itself and then.
We’ll screw this to the wall once you have the unit out of the box and it’s out in the open you’ll want to install the flu adapters now the exhaust is always going to be in the center it’s very important that you keep the combustion gas analyzer port facing the front of the unit itself you don’t need a combustion gas analyzer to actually install a unit but you will need one maybe in the future if you’re going to do any service on it there should be no issue with installing one from zero to 2,000 feet eat anybody who’s in high-elevation definitely understands that they need one in case they’re running any of the vent links to their max so the first one that you’re going to want to install like I said is this exhaust gas adapter now the flue actually needs this gasket it’s a little hard it’s a little twisted but it does have a sticker or a sticky substance on one side of it this yellow is what covers it up now you’re going to have to separate him like that okay peel it off make sure they don’t stick to each other get that guy away open him up and the easiest way to turn this over put it down and line up the holes can be a little bit difficult but once you’re there move it line up one hold it’ll stretch some it can be sticky that that got it and your gasket should look similar to this now.