Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 15 Communication 2017-09-29
QAW740 RM..
3131Z08
Geographical zone: 5
Room temperature
Geographical zone: 5
Room unit
Heating circuit 1
Room temperature
The occupancy times (time switches) of the different geographical zones are on an
individual basis, but all (or individual) zones use the same holidays and special days.
Hence, a common calendar for the common holidays and special days shall be used.
The common calendar has an impact on the time switches of the heating circuits.
For more detailed information, refer to section 15.2 " Calendar data (holidays and
special days)".
If the room occupancy times of the different geographical zones are identical, a time
switch can be defined as the master. The other heating circuits as time switch slaves
take care of the master’s occupancy times.
The commonly used time switch acts as a master in the geographical zone of its
heating circuit (or ventilation system).
The heating circuits that shall adopt the time switch will be operated as time switch
slaves and receive their signals from the master’s zone (setting: Time switch slave
(apartment)).
RM..
RM..
3133Z12
Master Slave
Time switch
Geographical zone: 1
Heating circuit 1
Time switch
Geographical zone: x
Heating circuit 2
Time switch slave (apart.) = 1
Time switch slave (apart.) = ----
If 2 heating circuits – or one heating circuit and one ventilation circuit – serve the same
rooms, they belong to the same geographical zone.
The 2 plants acquire the same room temperature and use the same room occupancy
schedule (in other words, the room operating mode is the same).
This is a room control combination where one of the heating circuits (or the ventilation
system) adopts the preselection for the room operating mode of the second heating
circuit as the master.
If the room operating mode is changed with the occupancy button on the room unit (e.g.
on the QAW740), the room control master will adopt that change and forward it to the
room control slave.
Holidays/specia
l days
(variant 2)
Same room occupancy
times (variant 3)
2 plants for the same
rooms (variant 4)