Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 9 Heating circuit control 2017-09-29
T
T
3131B15
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Heat
consumer
Heat
source
Heat
consumer
Heat demand
Load control
Load reduction can be triggered by one of the following functions:
• Protective boiler startup
• Limitation of the return temperature
• DHW heating with shifting priority
• DHW heating with absolute priority
From the consumer's point of view, a load increase can be effected in the form of pump
and / or mixing valve overrun. In principle, this means load maintenance.
9.7 Optimization functions
The opimization functions are activated or influenced by the following settings:
Main menu > Commissioning > Settings > … or
Main menu > Settings > Heating circuit 1 (or 2 or 3) > Optimizations/influences
Operating line
Range
Factory setting
Type of optimization With room model /
With room temp sensor
With room model
Forward shift on max
0…48 h
6 h
Early shutdown max
00.00…06.00 h.min
00:00 h.min
Quick setback
Off / On
On
[Boost heating] setpoint increase
0…20 K
5 K
Room temperature rise
1…600 min/K
60 min/K
9.7.1 Type of optimization
The type of optimization determines whether the optimization functions and boost
heating are performed based on the acquired room temperature or whether the room
model is used.
In plants where the heating circuit operates in connection with a ventilation system as a
room control combination, the room temperature sensor used for the ventilation plant
must not be located in the extract air!
The room model calculates the room temperature based on the outside temperature,
the building time constant and the rate of room temperature increase.
If no room temperature sensor is connected, the optimization functions can work with
this room model.
Load reduction
Load increase
Settings
Caution
Room model