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Modbus Organization

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Domat Control System s.r.o.

UI091 Room unit with CO2 sensor

Type:  Misc. Hardware
Description:  The room unit with CO2 sensor contains temperature sensor, NDIR CO2 sensor for carbon dioxide concentration measurement, optional humidity sensor, and control knob for setpoint control and other settings. The binary output is controlled either on a remote basis, or as thermostat, hygrostat or CO2 controller.
Connectivity:  Modbus RTU
Features:  The units acquire temperature, CO2 concentration, and optionally relative humidity in the room, temperature correction (controlled by the knob) and required operation status which is set by short push of the knob or in the menu. In the configurable menu following values can be set and displayed: temperature, actual temperature correction;humidity (actual value only at room units containing the humidity sensor); basic setpoint - day; basic setpoint - night; outside temperature for heating enable; DHW temperature; heating curve type (1...4); operation mode (Residential with Day, Night, Time schedule, Off, or Hotel/Office with Comfort, Standby, Party, Off); fan stage (Auto, Off, St.1, St. 2, St. 3); A/C mode (Auto, Heating, Cooling, Off, Fan only); another 5 variables (air quality, fan speed etc.) ; each has a profile where max. and min. values, step, number of decimals, and symbol set are defined.
Specifications:  See attached spec. sheet.