The design temp should match the heat loss that the panel rads can handle. The other setting is the min temp that the the system can run at. RE: 14F odt 150F for system min temp 115F. The idhwh is not influenced by the AM-10 it is over ridden.
Comfort Tech Corp
Thanks Ray, you are correct. Default display is outdoor temperature, push "Mode" button once and when there is a call for heat, the value displayed is what the target temperature is - default value "32", "Mode" button pushed again is the reference temperature at 14 degrees, push "mode" button - minimum temperature of the heating curve, push "Mode" button - warm weather shut down. The AM10 will not maintain temperature in the boiler or system if there is no call for heat. Please contact us if there are any questions.