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New Steam Boiler Installed-Feel Free to Comment
After 3 months & nearly 300 hours of research with Dan's books, this site, and many contractor & supply house conversations, we finally finished our new single-pipe steam boiler install Friday afternoon. Attatched are some photos-feel free to share any thoughts you might have. We'll try and make any adjustments as needed going forward to keep our system running optimally as best we can, given that this was a surprise install for us that we didn't expect & budget anything for 3 months ago :-)
Some questions that we thought about included:
-The two risers are a single run of 3 inch pipe 30 inches above the boiler jacket, compared to the shorter nipples for the 4 in header. Could this be an issue with vibration in the future?
-The horizontal run on the drop-header is longer than some of the examples we saw, any drawbacks or benefits for this length?
-The pitch is not quite certain for the header, towards the equalizer with one level measurement, away with another.
-The equalizer reduces from the 4 in header to 1.5 in vertical pipe after the 45 degree angle. This was standard 1.5 inch size, but we considered a 2 in pipe for the top equalizer pipe, would this make any difference?
-The boiler was pressure-tested at WMC & at the local distributor, then filled 3-4 times during the probe LWC & auto-water feeder testing with 10-minute delay upon initial start-up. The probe was suspected to have oil on it and not ready accurately the first few times. I didn't notice other skimming even though we have a skim port-the installer said this was fine since the water was clean form previous testing. Reccomended further skimming schedules?
-We heard lots of water (a few gallons?) passing through the longer condensate pipes (3 main loops of various lengths) upon initial start-up. Is that normal, and should the wet return drain valves have caught that initial rush of water?
-They said they used "Squick" to clean the boiler before start-up and removed it via the lower tapping on the side of the boiler. We wanted to be there to see it, but were unavailable the last few hours of the install.
-Installer reccomended against the $500-$1,800+ King valve setup to blow down the mud-leg, and suggested draining the boiler once a year or so using either of the lower valves and the full 60 psi city water pressure to clean out the bottom of the boiler.
-We kept the single Gorton #2 main vent on each loop, and added a Hoffman #75 on the 2 longer loops, along with added plugs for additional main venting in the future.
-A simple thermostat was installed in one of the units for now when the indoor sensor had been, until we confirm we can use a warm weather shut-down with the thermostat or a Tekmar #279 stem controller & #76 with indoor/outdoor/condensate return sensor to optimize the burner run time & heat cycles. With that low water cut-off & auto water feeder with 10 minute delay, this worried the installers that the Tekmar or warm weather shut-down would conflict with the boiler and not let it run properly, causing more trouble than it's worth?