We have a Carrier MVB furnace with the Infinity zoning system, with 3 zones (2 downstairs and one upstairs). The upstairs zone has 2 bedrooms and one bathroom. We have installed the sensor in the hallway, where there is no register, but at the most distant point from the stairway so as to prevent it from receiving too much downstairs heat.
My question regards how open I should keep the dampers. Right now, both bedrooms and the bathroom have very good airflow through the registers. Should I keep all of the dampers wide open or is there a reason to close them partially?
Also, is it a mistake to keep the sensor in the hallway? We did not want to put the sensor in one of the bedrooms as we wanted to be able to adjust the temperature from the hallway. But it seems that it will be much more difficult to set the thermostat by keeping it in the hallway as opposed to one of the bedrooms.