Best Aquastat for running Dual Systems

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JMann

Member
Hearth Supporter
Jun 27, 2008
106
Southern PA
I have a closed system. 30 plate HX separating the outdoor loop and the indoor. I can run oil (supplimented by wood or wood alone at the flip of a switch. Problem:
I recently added a digital aquastat (AquaSmart) which is circulating at the proper temp but will not shut off when the temp drops. It just keeps running with a message "FreezeRes" on the display. The only way to fix this is to reset the power on the aquastat. Any suggestions?
 
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