User Manual

9-5
Siemens Switzerland Ltd www.siemens.com/gamma 2019
Building Technologies Division
Modular installation system, Room Control Box
Overview and selection guides
Modular room control
Decentralized solution for a presence- and time-dependent temperature control
Legend:
Room Control Box AP 641 with actuators
and sensors for room automation
Presence detector
Room temperature controller
Central control unit RMB795B
Heating controller with 0…10 V heating demand
input or KNX interface
Optimal use of the thermo drive actuator
A room temperature controller installed in a room controls the thermo drive actuator installed in a Room Control Box to minimize the energy
demand in the room. The energy demand is simultaneously transmitted via KNX to the central control unit RMB795, which determines the
exact quantity of energy required for heating or cooling in all rooms, compares this demand with the time-controlled demands and transmits
it to the heating or cooling controllers. This ensures the highest possible energy efficiency.
KNX
AC 230 V
M
1
4
2
5
3
3
4
1
5
2
99
22_VS_2017_Gamma HQ_EN_Chapter_9_V1.indd 5 26.07.2018 14:32:50