I have a zone that has 400 unmet heating hours from unoccupied period and 0 from the occupied period (2F Tolerance). However, the hourly zone mean air temperature, cooling and heating set point graph shows that the temperature never falls below the heating set point in unoccupied period. Please see attached figure. Instead, it never achieved desired occupied heating set point. Is this a reporting error from the open studio ?
Besides, any suggestions why it never achieve heating setpoint during occupied time ? (Entire system is autosized)
