Bryant Steam Boiler BS 2 AAN 262 - correct pipes?

dualpipesteam

I just had this boiler installed before the winter to replace an old oil boiler.

2 issues..

Since we installed it i am woken up to radiator banging every morning. My system was quiet before we changed it.

2nd, i had another contractor in who said the boiler was installed incorrectly. They used 2 inch pipes instead of the recommended 2.5 inch. These both lead to a single 2 inch pipe which then leads to a 4 inch pipe that goes to the rest of the house. In a previous forum i read that this is wrong and voids the warranty as well as leading to an inefficient system.

pics attached

all thoughts welcome

dualpipesteam

JUGHNE

Could you back up for the whole view of the boiler piping?

Expect to hear the words: (butcherers......did anyone read the book??.....Sacrilege performed on a Dunham system......and I know it will come "You can't fix stupid".

KC_Jones

The piping is to be 2 1/2" at minimum, the installation manual is very clear on this. Also specs minimum 15" from last boiler riser to first system take off, which I don't think you have.

The warranty is pretty clear, it will not cover if the installation is not proper, no exceptions.

I attached a picture from the manual and the warranty information.

Was the boiler skimmed after installation? Without skimming it could be surging causing part of your issue, but primarily I would say your piping is the culprit. Those side outlet boiler are very sensitive to proper piping.

You need to get the contractor back to fix their mistakes. Have you made final payment to them?

dualpipesteam

i will post pics of the entire system later tonight.. appreciate the help

dualpipesteam

unfortunately fully paid but he is sending someone out and was mildly receptive to correcting it.. I got the usual we have been doing this since the 1960's. Also spoke to bryant and they claim the 2.5 inch is a guideline and individual installations may warrant individual approaches. guess they don't want to throw installers under the bus.

1Matthias

Eek. Larry, Curly, and Moe have expanded their business. "Up to the basement!"

In all seriousness, that needs to be redone to the manual's specs. What you have now is not correct.

Steamhead

That boiler is a re-branded Dunkirk. Dunkirk gas steamers are very sensitive to improper piping. Unless it is piped using the specs in the manual as a minimum, you will always have trouble with it.

If we were doing that job, it would have two 2-1/2" risers feeding a 3-inch header, then a 3" takeoff to the steam main. This would make sure the steam was extremely dry before it went out to the system.

STEAM DOCTOR

Three stooges. "A plumbing we will go". Check it out on youtube

dualpipesteam

More pics.

dualpipesteam

easier if i post this way

dualpipesteam

also heard the the steam return is above the waterline and this is an issue... not sure why. thanks for all the feedback..

New England SteamWorks

Looks like you have a vapor system. I think you need one of us to take a look. Where are you located?

dualpipesteam

Located in Scarsdale NY.

I believe I have a 2 pipe vapor system.