domat UC300
01/2019 Subject to technical changes.
1
UC300
Communicative floor heating
controller
Summary
UC300 is a communicative floor heating controller with one PWM output for
control of a thermic actuator, or electric floor heater. It can work autonomously,
or in connection to a primary controller (MiniPLC or SoftPLC), building
management system (RcWare Vision or any SCADA), or to UCWEB
–
the web
interface.
UC300
–
basic version with display and knob
UC300/DK
–
version without knob and display
Applications
▪
Systems with water or electrical floor heating
–
control and measuring of
room temperature
▪
monitoring and communication of room temperatures
Function
The controller reads actual room temperature, floor temperature with an external
Pt1000 sensor, setpoint shift by a knob, and set operation status which is set by short
push of the knob. Measured and 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
case the sensor is not connected (missing or broken), the limitation is not active and
the controller uses room setpoint and actual value only.
The output works either as PWM controlled by a PI controller, or on/off (thermostat).
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 operation modes: Day, Night, and Off. A short push in the Night
mode switches to Party mode
–
Comfort extension by 2 hours.
