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03/2017 Subject to technical changes.. 

domat UC120 

Operation 
 

Temperature correction: 

 
Turn  the  knob  clockwise  to  increase  setpoint,  turn  it  counterclockwise  to  decrease 
setpoint. The maximum correction range can be modified over the bus e.g. with the 
ModComTool configuration tool. 
 

Operation mode change: 

 
Push the knob shortly (<1 s).  Each push changes the operation mode to Party 

 Day 

 

Night 

 Off 

 Auto. 

 
In the Auto mode, the Day / Night / Off modes change according to time schedule). 
 
The  Party mode  overrides  to Comfort for 120 minutes, then follows  the  actual time 
schedule. 
 
The weekly time schedule switches between Day, Night, and Off modes according to 
the event 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 event selection. Turn the knob to select the operation mode 
(Day, Night, Off, Event inactive) invoked by this event. If the event is not active, the 
operation mode is not changed at the set time.  
 
Short push to confirm the operation mode setting. The event time displays. Turn the 
knob to set the time of the event and confirm by a short push. Then turn the knob to 
select another event or long push and turn the knob to select another weekday. 
 
After all desired events have been edited, long push to leave the time schedule settings. 
The controller goes to the basic display mode also after 30 secs of user inactivity. 
 

Change of setpoints and controller time: 

 
Switch to the settings mode with a superlong 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) 

Summary of Contents for UC120

Page 1: ...gorithm brought to one 0 10 V DC output All values are displayed on a large LCD display The functionality and control parameters i e P and I constants and hysteresis can be set with ModComTool the configuration software which is free to download at http domat int com en downloads software The controller contains real time clock with a weekly scheduler 6 events per day It changes between three oper...

Page 2: ...current Resolution 1x 0 10 V DC 10 mA corresponding to 1 kOhm load 50 mA tolerant to permanent short circuit 10 bit D A converter Setpoint correction according to configuration 10 to 1 K Communication RS485 separation Baud rate 2 wire RS485 Modbus RTU slave optically separated up to 1000 V selectable 1200 9600 115200 bps Display LCD 60 x 60 mm Terminals screw terminals for 0 14 1 5 mm2 wires Cover...

Page 3: ...erator 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 there is an aperture for cabling The bottom should be installed and cabling connected first and the upper part inserted after the construct...

Page 4: ...m the event selection Turn the knob to select the operation mode Day Night Off Event inactive invoked by this event If the event is not active the operation mode is not changed at the set time Short push to confirm the operation mode setting The event time displays Turn the knob to set the time of the event and confirm by a short push Then turn the knob to select another event or long push and tur...

Page 5: ...sted 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 The default values as well as all other settings PI parameters address baudrate can be set by the configuration program ModComTool Dimensions All dimensions in mm ...

Page 6: ... Belden 8205 cable A terminal is designed for maximum 3 wires of 0 8 mm2 Temperature compensation After switching the unit on allow about 90 mins to dissipate the heat inside of the housing Then the sensor is measuring correctly Do not change the sensor correction variable immediately after powering the device on RoHS notice The device contains a non rechargeable battery which backups the real tim...

Page 7: ... versions 08 2016 Changed reference to the configuration software Added picture and description of the installation and link on the datasheet with other colours 03 2017 Added picture and description of the installation and link on the datasheet with other colours ...

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