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Posted by Dave on January 19, 2006 at 12:19:39:
In Reply to: Re: Heatmanager vs Honeywell T475A posted by Heatpro on January 19, 2006 at 11:15:46:
: The ErgoMax thermostat wires go to the same boiler and burner control wires that the SR504 does (the R W terminals). The ErgoMax just demands that the minimum water temperature is over condensation minimum - as the instructions for the HeatManager say that you shouldn't use this control for systems less than 150F - that is right on.
: I doubt that the radiant floor needs water any higher than 140F, so the radiant floor thermostat only needs to operate the radiant floor circulator, as the ErgoMax will always be over 140F. What does radiant floor always on mean? You heat the floor in the summer?
+++So, the Ergomax will be the only thing hooked up to the R/W terminals on the boiler.
I will remove the wires that ran from the SR504 to the R/W terminals on the boiler.
So that the individual pumps will all just pull from the Ergomax tank. That way, the boiler and circ will ONLY run when the Ergomax calls for heat at 150.
Then I will pull the wires from the operating temp control on the boiler (high limit) and hook the Heatmanager in series with that control.
Did I FINALLY get it right?
Dave