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Hi, can someone explain how these bypass's work, what happens when there is no call for heat and the circulator is not running how is the minmum temp maintained? Why not use a low limit control to maintain the minmum temp,or do the bypass's work on convection? Thanks

Hi, I have a Buderus G124X propane fired boiler cotrolled by a Taco PC 700-2 boiler reset setting on control is set at 140 for min.boiler temp but the minimum temp is running around 115, I can't figure out which setting on the control affect the minimum temp, Taco tech support always refers me...