As per the energyplus I/O reference, the output variable 'Availability Manager Hybrid Ventilation Control Status' reports three integer values: 0,1, and 2 denoting no hybrid ventilation control, whether natural ventilation is allowed, or not. However, the output result from a simulation shows the values range between 1 and 2 (1.1,1.858796296, 1.758333333, 1.716666667 etc.). Does it mean that there is a partial natural ventilation happening or denotes that there is a potential to naturally ventilate? I believe this should not be the case, as the output results has to just show a binary result in either 1 or 2. Could somebody please explain how this has to be understood? Thank you very much in advance.