I have been adjusting my min and max since i first started using a coal trol on my Alaska Channing III. My max is now 53 with about 1.5'' of ash and min is set at 7. My stove is top vent so my min might be a little higher to maintian a good draft, than those of you that have a dv stove. A max of 30 sounds low to me, but that is what the coal trol oper. manual suggest as a starting point, and then advance from there till you have 1'' to 2'' of ash on your grate.
I purchased the Basic + because the thermostat is energy star rated and it has night and weekend setback points, Hope this helps, the guys at automation correct will be your best bet and explain your set up, stove location, Etc. The only difference between the basic and basic+ is the thermostat, the module is the same hope this helps!!!!!!