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NR9003 is a digital controller that allows to manage the control both in heating and cooling of the mixing group of a radiant panel system with a maximum of 9 independent zones through temperature and relative humidity sensors positioned in each single zone acting on actuators electrothermals positioned on the distribution manifold (if more than 3 zones have to be managed, a second controller must be added as expansion connected to the master controller via Modbus communication bus). In addition, the controller is able to
enable a possible dehumidifier on the basis of the relative humidity measured in the rooms for humidity control and as a safety against possible condensation during the summer. STA61M temperature and relative humidity sensors are connected to the controller via a Modbus communication bus and allow the setting of an hourly temperature setpoint (daily and weekly) and a relative humidity setpoint for each individual zone.
The connectivity between the controller and the PC running the configurator is dono through the converter LIBO-USB.
A group of max 8 NR9003 (each controller with max 1 expansion controller) can be remotely monitoredcontrolled via web using the Control Panel MT-NET-PON3.