Bosch Mini-Tank Water Heaters

Once you place  him on make sure that that port is in  the front line up your holes push down  and then grab your screws that came with  the unit if you haven’t lost them  already and just screw down your exhaust  adapter  it’s also a good idea if you have a  magnetic tip screwdriver in case you  drop any of these be careful not to drop  one down into the unit it is all vented  any condensing model themselves are  vented with schedule 40 PVC whether it  be the intake or whether it be the  exhaust you can go to the left or you  can go to the right just remember that  you’ll have to remove the blocking plate  and put it on the opposite side.

So I’m  going to grab this other adapter put him  on this one doesn’t have any sticker or  any sticky back to it so you’ll just  have to put him down line up the holes  line up the holes here and screw that  particular piece down  there  now that I have those two particular  parts on one of the things that you’re  going to always want to remember is that  this is a condensing model it has two  heat exchangers in it the weight of this  particular model is 80 pounds it’s a  really good idea that you actually get  some help to hang this unit on the wall  he can be cumbersome he can be kind of  difficult one of the things I really  wanted to show you was the fact that on  the backside of this unit you’ll have  these two hanging brackets be really  careful if you’re actually going to grab  these handles you’ll definitely want  gloves it is sharp galvanized steel so  get a helper get someone to help you out  with this they don’t have to stay for  the whole install but it’s just a really  good idea to get somebody to help you  with this particular unit because it’s .

So heavy and that’s the way it should go  in it should just slide down onto that  bracket and then this way you know it’s  secured to the wall the next thing that  you’re going to install once you have  the unit on the wall is an isolation  ball valve kit now these isolation ball  valve kits are not a must but I would  highly highly suggest that you actually  install water heater one of these at some point or  another due to calcium deposits in the  heat exchanger you’re going to have to  flush the unit with vinegar now whenever  you buy a kit no matter who the actual  manufacturer is a few things will be  inside here and make sure that they’re  correct the first thing that you’ll see  is a pressure relief valve now there is  a tag on this pressure relief valve that  actually has a rating for BTU as well as  pressure always make sure that it  matches the side label to the unit on  the right hand side as far as BTUs are  concerned if it’s too small  it’ll open prematurely and you’ll have  to go back for a service call.

So always  check that the pressure relief valve is  the correct size  the other part that you’ll have and  they’re marked is a hot side with a red  handle and a spot for that pressure  relief valve and a cold side for the  inlet and it will be marked with a blue  handle this particular device right here  is where you will hook up your flush kit  whether it be vinegar or any of the  other devices that you’ll use or any of  the other substances that you’ll use for  it the only thing that Bosch itself  endorses this pure white vinegar  contains about five percent acid and it  won’t harm any of the piping and it’s  definitely safe for people or animals or  anything like that so make sure that  this valve kit has those particular  ports on it but like I said blue for the  inlet red for the outlet one of the  other things that you’re going to want  to use is teflon tape don’t use pipe  dope don’t use any type of a sealer if  you use too much of it.

You’ll clog up  the water flow control turbine in the  water flow control valve this will  affect the unit it will not fire if that  happens your safest bet is to always use  teflon tape on the inlet on the outlet  and teflon tape on the gas line now at  the bottom of the unit located here  you’ll see this attention sign and this  will designate this as the gas  connection just remove the cap take off  the label down the next thing that  you’ll notice is that we’ve actually  marked the bottom in the metal itself as  to where the cold is where the hot is  where the gas line goes so there isn’t  any problem with actually piping this  backwards and it should never happen out  in the field the other things that  you’ll notice down here as far as the  fittings are concerned because this is a  condensing model this is your condensate  drain whenever you’re hooking up the  condensate line to this you have to  leave a quarter-inch air gap it’s not to  be glued to it this is your clean-out  cap cap for your trap inside the unit  itself  cold in pot out and this particular  grommet is if you’re going to cascade in  units these units can be cascaded  electronically if the job is big enough  and the demand is high enough from two  units all the way up to 24 and of course  this is your plugin for your hundred and  twenty volt power.

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