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Hello, I posted on The Wall last year when we had a near-meltdown from corrosion on our building's late 1980's Peerless. I am just a homeowner, not an expert on plumbing at all, so this website has been very helpful! We just replaced our sad, patched-up boiler with a new Peerless 65/66 series and it was fired up this past Friday. I am going to paste sections of what I posted on The Wall earlier today; I had a couple good responses but thought I should take this to the "Steam" section for more. Just for background, I live in a 12 unit condominium building, built 1929, in San Francisco. It doesn't get *that* cold here but we run the boiler all year (foggy, chilly summers!). Not a large building, each unit is about 1,100 sq, ft, three stories over a garage. Poorly insulated.
Here are the main parts of my recent Wall posts:
1- We are getting lots of steam hammer happening in the radiators now. We
had some with the old boiler but it is now pinging all the way through
the heating cycle, except when it is at the very end. All steam vents
are new, valves replaced within last 4 years....I am including photos of the new near-boiler piping so you can tell me if it all looks "kosher" .
2- So I was just downstairs observing while the unit was going through a few cycles. Seemed to be firing up every 4-5 minutes.
I took photos of the gauges since I am (of course) somewhat confused as
to what they are all. Anyhoo....this is what I can tell you:
"Cut In" set to just below 2
"Internal Syphon" reads 5PSI when burner is fired, drops to 2.5 after it goes off
"Main Pressuretrol" is set to about 8PSI (is that the cut-off pressure level?)
The sight glass water drops way down when the burner is lit, lots of
bubbles fill the empty space. Water stays pretty low (fluctuates a
little) and then when the burner goes off it rises, eventually filling
ALL the way to the top after the burner goes off .
Thermostatic controls are reading "E2" on two out of three.
We are getting pinging and clanging pretty much every cycle. Radiator in
my unit, third floor sounds like a "surge" of steam hits it and then some
jangling / pinging sounds. My other two radiators are turned off, but still getting
noise near the connection in the floor.
Rod replied to my other thread asking about whether the new boiler was properly skimmed yet. I need to address this tomorrow with our contractor and let you know. He did flush it out with some "soap flakes" (his words) but I don't know that he followed the Peerless instructions for this process.
Thanks for any feedback! Sorry I can't figure out how to rotate these pictures so they are easier to view!
First are pics of the gauges, others of new near-boiler piping: