As far as I understand, 5500NAC is based on the Schneider LSS controller, which in turn is based on the Embedded Systems LM5 controller. \n\nI have been working with LM5 solutions for a long time and I am more than pleased with their functionality. However, before purchasing 5500NAC, I would like to clarify the possibilities of working with c-bus thermostats. For example, when working with 5070THB devices, PACA controllers had problems associated with obtaining a setpoint fan speed. \n\nHas anyone checked the full two-way communication between the 5500NAC and the Thermostat? Is there documentation on this functionality?