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domat UC300 

01/2019 Subject to technical changes. 

Change of setpoints and controller time: 

 
Switch to the settings mode with a super long push (>2.5 s). The controller switches to 
settings mode (flashing thermometer icon). 
 
Turning the knob selects between following settings: 

-

 

Controller time and day of week (Clock icon, Day of week) 

-

 

Setpoint temp. Heating Day mode (Temperature, Heating, Day are flashing) 

-

 

Setpoint temp. Heating Night mode (Temperature, Heating, Night are flashing) 

-

 

Setpoint  temp.  Heating  Off  mode  (Temperature,  Heating,  Empty  house  are 
flashing) 

-

 

Setpoint temp. Cooling Day mode (Temperature, Cooling, Day are flashing) 

-

 

Setpoint temp. Cooling Night mode (Temperature, Cooling, Night are flashing) 

-

 

Setpoint  temp.  Cooling  Off  mode  (Temperature,  Cooling,  Empty  house  are 
flashing) 

 
Select the requested value by a short push. Turn knob to change value. Confirm by a 
short push again.  
 
If there is no user activity for 30 s, the controller goes to the basic display mode. 
 

Default values: 

 
Default values as well as all other settings (PI parameters, address, baud rate...) can be 
set  by  the  configuration  program,  ModComTool,  and  a  USB/RS485  or  RS232/RS485 
converter 

 see Related products. 

 

Display 
 
 

 

 

 

A large (60 x 60 mm) display clearly shows 
actual  room  temperature  and  controller 
status with 7-segment digits and standard 
Day,  Night,  Off,  and  Time  scheduler 
symbols.  Active  output  is  indicated  by  a 
heating  symbol. In  the  upper  part,  there 
are  week  days  used  for  time  scheduler 
setup. Other symbols are not used. 
 
 
 
LCD symbol set 
 

Summary of Contents for UC300

Page 1: ...set values are processed in a PI algorithm at the output of which there is a PWM controlled triac All values are displayed on a large LCD display The floor sensor located in the floor body or at supply water limits the temperature of the floor and prevents overheating Maximum floor or water temperature measured by the floor sensor is set in the configuration program or in the controller menu In ca...

Page 2: ...ent 0 4A recommended thermic actuators are Siemens STA71 Danfoss TWA 24V types etc Inputs 1x digital input for presence or window contact 1x analogue input for external temperature sensor Pt1000 Setpoint correction according to configuration 10 to 1 K Communication 2 wire RS485 Modbus RTU slave optically separated 1200 115 200 bps Display LCD 60 x 60 mm Terminals screw terminals for 0 14 1 5 mm2 w...

Page 3: ...ure correct values of temperature i e in the height of about 150 cm with no direct sunlight or other heat cool source AHU outlets refridgerator electrical appliances The device consists of two parts bottom with screw terminal block and cover containing PCB display and the knob The bottom part is fixed by 2 or 4 screws to any flat surface or a flush mounting box Ø 50 mm At the back of the bottom th...

Page 4: ...t list There may be up to 6 events per day Time schedule settings Switch to the time schedule settings mode with a long push 1 s The controller switches to settings mode clock icon Turn the knob to select the weekday 1 to 7 Then short push to confirm the selection Turn the knob to select the event large number 1 to 6 Each event displays the mode activated by this event Short push to confirm the ev...

Page 5: ...mode Temperature Cooling Night are flashing Setpoint temp Cooling Off mode Temperature Cooling Empty house are flashing Select the requested value by a short push Turn knob to change value Confirm by a short push again If there is no user activity for 30 s the controller goes to the basic display mode Default values Default values as well as all other settings PI parameters address baud rate can b...

Page 6: ...are twisted such as with the LAM DATAPAR or Belden 8205 cable A terminal is designed for maximum 3 wires of 0 8 mm2 With cable types as above maximum starting power of the controller and valve of ca 7 VA and acceptable voltage drop of max 15 the maximum cable length for 10 controllers is about 50 m If the controllers and valves are at higher distance than 50 m from the transformer or more valves a...

Page 7: ...ompliance with local regulations Safety note The device is designed for monitoring and control of heating ventilation and air conditioning systems It must not be used for protection of persons against health risks or death as a safety element or in applications where its failure could lead to physical or property damage or environmental damage All risks related to device operation must be consider...

Page 8: ...r downloading software and related products 09 2016 Changed the format and reference to the configuration software 03 2017 Added picture and description of the installation and link on the datasheet with other colours 10 2017 Added Safety note description UC300 DK version change pictures 05 2018 Technical data change 01 2019 Technical data change ...

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