domat UI0 Series User Manual

domat UI0xx 10/2017 Subject to technical changes. 1
UI0xx
Communicative room units and sensors
Summary
The UI...(BL) room unit is a family of universal communicative human-machine
interface for control of HVAC units and plants, and IRC controllers. 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 UI0xx, these types contain knob and display blue colour backlight
function and more accurate sensors of temperature and humidity.
According to production type, each version of the unit may contain display,
backlight, RTC nad IO, see type table below.
All versions of the room units now contain relative humidity measurement. UI04x,
UI06x and UI08x series have been replaced.
Application
▪ systems with fancoils, convectors, floor and radiator heating, AHUs, air
conditioning units.
▪ control of boilers, DHW, heating circuits, building controls in general
▪ monitoring of room temperature and humidity
Function
The units acquire temperature and optionally relative humidity in the room, temperature
correction (knob) and required operation status which is set by push of the button 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
- 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)

domat UI0 Series Specifications

General

Category	Thermostat
Series	UI0 Series
Power Supply	24 V AC/DC
Operating Temperature	0°C to +50°C
Protection Class	IP30
Weight	150 g
Display	LCD
Control Accuracy	±0.5°C
Communication	Modbus RTU
Installation	Wall-mounted
Storage Temperature	-20°C to +70°C
Relative Humidity	non-condensing
Setpoint Range	5°C to 35°C

Summary

Technical Data

Power Supply

Specifies the power input requirements for the unit, including voltage and wattage.

Temperature Measuring Range

Defines the operational range and accuracy for temperature measurement.

Humidity Measuring Range

Details the range and accuracy of the digital humidity sensor.

Protection

Specifies the Ingress Protection (IP) rating according to EN 60529.

Inputs

Describes the available input types, specifically potential-free contacts.

Outputs

Details the types of outputs, including solid-state relays and their ratings.

Setpoint

Indicates the configurable setpoint adjustment range.

Communication

Specifies the communication interface (RS485, Modbus RTU) and default settings.

Display

Provides the dimensions of the LCD display and refers to symbol set details.

Terminals

UI010(BL), UI0x1(BL) Terminals

Details the terminal connections for UI010(BL) and UI0x1(BL) models, including communication and power.

UI0x2(BL) Terminals

Describes the terminal functions for UI0x2(BL) models, including inputs, outputs, and power.

UI020BL, UI0x5(BL) Terminals

Explains the terminal assignments for UI020BL and UI0x5(BL) models, covering inputs, outputs, and communication.

Installation and Operation

Installation Guidelines

Provides instructions for installing the unit in suitable environments and locations.

Opening the Cover

Step-by-step guide on how to safely remove the display part of the unit.

Unit Information

DIP Switches

Explains the function of DIP switches on the PCB for bus termination and initialization.

RoHS Notice

Information regarding the non-rechargeable battery and disposal compliance.

Safety Note

Defines the intended use and limitations, highlighting safety considerations.