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Building Technologies
Modular Heating Controller RMH760B
CE1P3133en
HVAC Products
14 Communication
05.02.2007
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 14.2 “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 heat-
ing 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..
31
33
Z
12
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.
For detailed information, refer to subsection 9.10.3 “Room control combination”.
In the case of a room control combination with a ventilation plant, the ventilation plant
will
always
adopt the function of the room control master.
Holidays/special days
(variant 2)
Same room occupancy
times (variant 3)
2 plants for the same
rooms (variant 4)
⇒