NRT405F901 manual Chapter 2 Introduction to NRT405F901 5
Chapter 2 Introduction to NRT405F901
Fan coil controller
NRT405F901 is a fan coil controller for control of heating, cooling and fan control.
NRT405F901 enables you to create anything from stand-alone systems for managing the
functions in a single room to large, integrated SCADA systems.
NRT405F901 offers built-in communication. It can be connected to bus lines, such as
Modbus RTU or BACnet MS/TP, in order to communicate with a central SCADA system via
RS485.
Applications The NRT405F901 controller offers appealing design and functionality. It is suitable in
buildings where a high level of comfort and low energy consumption are desired, such as
offices, schools, shopping centres, airports, hotels and hospitals.
NRT405F901 is suitable for control of thermal and three-position actuators. It offers three
digital outputs for control of a fan-coil unit.
Mounting The modular design with a separate bottom plate for wiring makes the controller easy to
install and commission. Mounting takes place directly on the wall or on a device box.
Communication
Communication The controller can be connected to a central SCADA system via RS485 (Modbus RTU or
BACnet MS/TP) and configured for a specific application using the configuration software
NRT tool, downloadable free of charge from the SAUTER ITALIA SPA website
www.sauteritalia.it
. Additional information can be found in the NRT tool
manual.
Control The controller can be configured for the following control modes/control sequences:
• Heating
• Heating or cooling via change-over function
• Heating/Heating (NRT405F901 is configured for electric heater)
• Heating/Cooling
• Cooling
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