Basic Documentation

140/256
Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 9 Heating circuit control 2017-09-29
When using the room control combination with ventilation, special attention must be
paid to the sensor's location on the ventilation side.
Mounting the sensor for the room temperature in the extract air in combination with a
heating circuit is not permitted!
The sensor for room temperature control of the ventilation system must be located in
the room. If this is not observed, the heating circuit will work with the wrong
temperature when the ventilation plant is shut down.
9.10.3 Room control combination
The heating circuit of the RMH760B can be combined with a heating circuit of some
other controller. The combination of 2 room control systems is required when one
heating circuit is used for the underfloor heating system and one for the radiators, for
example. Another example is the combination of ventilation and heating in a room (e.g.
in a hall).
If only the time program shall be commonly used, this can be done without a room
control combination. In that case, the time switch of the heating circuit is to be operated
as a master or slave. For more detailed information, refer to section 5.1 "Time switch".
In the event of a power failure, the slave’s operating mode is Comfort
until the
master sends another signal via bus
.
For more detailed information about ventilation, refer to the Basic Documentation on
the RMU7…B (P3150).
Main menu > Commissioning > Extra configuration > Heating circuit 1 (or 2 or 3)
Operating line
Range
Factory setting
Room control combination
Master /
Slave external setpoint /
Slave internal setpoint
Master
There are no settings required.
The room operation selector must be operated and the setpoints (if externally) adjusted
at the maser.
Main menu > Commissioning > Communication > Heating circuit 1 (or 2 or 3)
Operating line
Range
Factory setting
Geographical zone (apartm.)
---- / 1…126
----
Communication is described in chapter 15 "Communication".
Requirement:
The basic load is covered by a weather-compensated heating circuit and the load-
dependent part by a second heating circuit with or without room influence. The 2
heating circuits shall operate parallel and be controlled by a common switching
program or room operation selector.
Important
Note
Behavior after a power
failure
Extra configuration
Settings
Communication
Example:
2 heating circuits