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Primary Secondary Not Transferring Heat To Secondary
Having an issue where boiler limit keeps getting hit at 170 degrees in boiler loop due to secondary loop not getting good heat transfer. Any issues you can see with how I piped this that could cause insufficient mixing? Secondary circulator is maxing out on auto adapt mode. Boiler loop 3 speed circulator is set to low. Does it matter if secondary loop comes off tee bulls vs. boiler loop going into the tee bulls? I have seen it piped both ways and thought they would have same result. I do see that the preassembled near boiler manifolds you can buy tend to pipe boiler supply and return into closely spaced tee bulls and secondary loop goes through run of tees. Let me know if that could be part of the issue.