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    L8124C Aquastat not cutting circs below low setting?

    Hey guys, I Recently replumbed the entire boiler with new piping, circs , valves, tempering valve and complete feed, xtank, etc. I did remove all the circ relays and replace with a Taco SR-504-4 controller, wired as per instructions ZR-ZR on stat and ZC-ZC (pretty simple). Everything was running...
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    Full Flow Feature on Honeywell VF06-100-SUSUT boiler fill.

    Hello all, I can’t for the life of me find out how to use the fast fill feature of this fill valve assy. The instructions are clear on how to set psi but, not on how to use fast fill . automatic maybe? Any help would be greatly appreciated. Thanks, Alex
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    any benefit to increasing pipe size before and after Boilers tankless coil?

    Hello All, I have a slant fin L40-PT oil fired boiler with a coil. the taps are 1/2". would there be any benefit in using 1/2"-3/4" adapters right in and out of coil? I get i'm limited to the amount of hot water coming from coil but, the fact the 3/4" pipe would hold more hot water...
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