How to refill my Utica boiler?

I have MGB50HD Utica Boilers system, I'm new to this system and drained the system, but I don't see any water inlet or any thing to refill the system. I see the expansion tank is up in the ceiling of my basement, but there is no water line to it. So, how would I refill my system? How would I know if I fill enough? Thanks.

 

chin –

The knowledgeable guys will be along I’m sure. But I’m positive you have a water supply line with a fill valve. Look for a pipe near the boiler somewhere that has something that looks like this:

https://www.supplyhouse.com/Watts-03...SABEgLuz_D_BwE

That would be the fill valve and that pipe would be your water supply pipe to the boiler.

There would probably be another valve close by on the same pipe which would have a handle and that would be a shutoff valve to open or close the entire water supply to the boiler.

The shutoff valve is probably closed if your boiler isn’t filling automatically. But the procedure to refill to the proper pressure and remove any air from the system is beyond me and the more knowledgeable folks would have to help you.

 

First, I would ask why did you drain a hot water system? IF it was to make repairs then OK, or if you were flushing the system you made a terrible choice. Hot water heating systems need to be drained and flushed "almost never". If you can not find out how to refill the system, please call someone in the boiler field and ask for help. You can learn a lot from them if you watch and ask questions.

 

c,
Pics would really be helpful to see exactly what you have.

My guess is at some point the boiler was replaced because you said you have a tank in the ceiling with nothing connected to it which is telling me that, that is the old expansion or compression tank, replaced by an extrol bladder tank most likely hanging from your supply pipe somewhere.

As far as filling the boiler if you cannot find what you have after looking up Z's suggestion I believe you will need to post pics.

Just curious. What valve did you close to be able to drain the boiler without having it refill. Can't you just turn on what you shut off or am I missing something.

Hope this helps a little.

 

I appreciate the help. The reason to empty the water was based on the fact that I have to replace my zone valves. Watching a youtube video, I saw the guy had to empty the water before replacing the valves. So that's what I did. But coming to this forum, I've learned that doesn't have to be done, if ever. And that I think I need to refill the system, but couldn't find the supply line and any kind of valves that would indicate the supply. Anyway, it's a good idea to have someone knowledgeable to help. I'll try to post some pictures.
Again, thank you for the replies.