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can zone valve controller turn on my IBC G3 boiler? (improper install i think)
I have an IBC G3 20-160. I have 8 heating zones in the house plus DHW.
the installer ran 2 of my zones to the boiler directly (basement and mudroom) and the rest are run off a Taco 506 zone controller.
It seems that unless dhw, mudroom or basement are asking for heat, the boiler will not turn on. I see the pumps working and the Taco lights up various zones as they ask for heat but the IBC just sits still.
I don't understand the various terminology on the settings screen (set point, zone of, etc) so it's a bit difficult to diagnose but I am very technically savvy otherwise so wiring, voltmeters, etc are not scary.
In my common sense analysis, it seem that the taco has a wire running back to the boiler that sends a signal (i measured 26vac on it when all zones of taco are off and 0vac when any zone is on).. that signal should be registered by the boiler and turn itself on.
alternately, since I also have a boiler buddy, it would make sense for the inlet/outlet temperature of the boiler itself to cause it to switch on.. none of that is happening.. i saw boiler temps of <100 and it still won't turn on unless one of the 3 zones mentioned above are asking for it.