The e-Room Modular 4I/6O Modbus 12V is a low cost fan-coil controller with remote communication, designed for DIN-rail mounting. It combines climate and lighting control functions, managing the switching on and off of both systems according to the occupancy status of a room or area, through 4 inputs and 5 outputs available on the device to perform different functions. This model allows a dual lighting control when configured to operate in 2-pipe installations. In this configuration, output OUT1 is used to control the main lighting contactor in a hotel room, and output OUT3 is used to control the courtesy lighting at the room entrance.

The device is specially designed to provide maximum comfort and optimal energy efficiency for the installation, regulating the climate to reach the level desired by the user.

The unit provides different selectable configurations depending on the type of installation and required functionality. It includes a communication bus and a power output to connect a display so that the user can manage climate control. It also includes a Modbus communication bus for remote communication with a BMS system for global building management.

e-Room Modular 4E/6S Modbus 12V is a device 100% compatible with the old model e-Room Controller 4E/6S Modbus 12V.

Main Features Summary

• Fan-coil controller for 2-pipe and 4-pipe installations.
• Six possible configurations according to the type of installation.
• Two self-configurable dry-contact inputs: keycard/motion detector, window contact
• Two self-configurable analog inputs: water probe for mode change/door contact/lighting pushbutton, external temperature/lighting pushbutton.
• Three relay outputs for fan-coil speed.
• Two relay outputs for valves (2/4 pipes) + room/courtesy lighting.
• One relay output for courtesy lighting control in hotel rooms.
• Modbus RTU communication protocol with RS-485 interface for remote management through BMS.
• RS-485 interface communication bus for connection with the sensor-display.
• Power supply from the mains.
• Configurable economy mode when the room is unoccupied (off/setpoint change).
• Configurable actual and user setpoints for cooling and heating.
• Automatic start-up in case of temperature excess or frost risk.
• Fan-coil type configuration: 3-speed / 1-speed.
• Configurable fan-coil locked speed when there is no demand.
• Configurable cooling/heating setpoint in ECO mode.
• Configurable dead band between cooling and heating.
• Delay to switch to stand-by when the room becomes unoccupied.