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Posted by Dave on December 03, 2008 at 09:45:38:
We have the setup where we have a copper tube low mass boiler hooked in sereis with a large (72 gal) Ergomax tank which acts as the buffer tank. Normally, in the dead of winter, the boiler runs full out (where it used to short cycle before adding the Ergomax).
We also have a Heat Manager so when our radiant master bath floor is on, the burners do not come on. Currently, the radiant flooor is off.
What I've noticed is that many times the main pump that circulates water between the boiler and Ergomax is running. The Ergomax, which is set at 160 deg, is calling for heat, even though no other zones in the house are calling. The Heat Manager is not allowing the boiler to run, so instead, the pump just keeps circulating water between the boiler and Ergomax for hours until another zone calls for heat, or the water temp in the Ergomax loop drops below 140 I believe (whatever the lower limit is for the Heat Manager).
In these shoulder months, would it be OK to disconnect the ergomax thermostat since any other zone calling for heat will not allow the Ergomax temp to drop too much and will then cause the Ergomax to heat up to temp (once another zone calls). Or is there another solution? Thanks.
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