domat UI90x
9/2019 Subject to technical changes.
1
UI90x
Communicative room unit with CO
2
sensor
Summary
The room unit with CO
2
sensor contains temperature sensor, NDIR CO
2
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 CO
2
controller.
The units communicate over Modbus RTU / RS485 and they can be used as open
system components with majority of building control system and controllers.
Compared to the old series UI09x, these types dispose of knob and display blue
backlight function and more accurate sensors.
All versions of the room units now contain relative humidity measurement. UI092
and UI094 versions have been replaced.
Beware of unit terminals connection. It differs from its predecessor.
Application
▪
Air handling units and air condition in rooms with variable load
–
schools, cinemas, lecture halls etc.
▪
monitoring and recording of temperature, and CO
2
concentration
indoors
Function
The units acquire temperature, CO
2
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)
–
time (only display at room units with RTC)
–
basic setpoint - day
–
basic setpoint - night
–
outside temperature for heating enable
