Temperature Control

The Schrack Smart Building Automation Room Climate Modules "C1144" and "C1244" are used for temperature control.

• The Room Climate Module "C1144" is controlled via Room Control Units.
• The Room Climate Module "C1244" is controlled via PT1000 sensors or an external actual value (e.g. from an analog input).

Four control valves and four Room Control Units can be connected to each Room Climate Module "C1144" or "C1244", corresponding to four separate room control zones.

Multiple valve actuators can generally be operated in parallel on each output. The number is limited by the load capacity of the relay output. This is particularly useful when several heating circuits are required in one room due to the heating pipe length, while the room is controlled as a single zone.

For the Room Climate Module "C1144", additional temperature sensors are required in the rooms to ensure correct temperature control. Temperature sensors are integrated into the Room Control Units "C1101", "C1102", "C1103", and "C1104". Depending on the model and configuration, these Room Control Units also provide functions such as setpoint adjustment, mode selection (comfort, energy-saving, frost protection), and a presence button.

Unlike the Room Climate Module "C1144", the temperature setpoint and mode cannot be changed directly via a Room Control Unit when using the "C1244". These settings can only be changed via the app, as only a PT1000 temperature sensor can be connected to the corresponding input of the "C1244".

Example:
The room climate in the bedroom is to be controlled. The bedroom has one heating circuit.

A Room Control Unit "C1103" is used, providing a temperature sensor, setpoint adjustment, mode selection, and a presence button.

A Schrack Smart Building Automation Room Climate Module "C1144" is used for the heating circuit. One output is used for the valve actuator, leaving the remaining three outputs available.