Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 10 DHW heating 2017-09-29
Main menu > Settings > DHW > Controller primary circuit
Operating line
Range
Factory setting
Setp increase DHW charging
0…50 K
10 K
Setp increase mixing valve
0…50 K
10 K
Setp increase heat exchanger
0…50 K
10 K
Setpoint increase storage tank acts on the control, but not on the temperature request.
The amount of heat required for DHW heating can have a considerable impact on the
temperature request to the heat source. Here, the selected DHW priority is of great
importance. For more detailed information, refer to the following section " DHW priority"
and to chapter 15 "Communication".
10.10 DHW priority
Using DHW priority, preference can be given to DHW heating by reducing the output of
the heating circuits. The output reduction can be either shifting or absolute.
In addition, the heat request to the heat source can be restricted to the DHW user
request.
Main menu > Settings > DHW > DHW
Operating line
Range
Factory setting
Priority None [DHW request] /
Shifting [DHW request] /
Absolute [DHW request] /
None [max selection] /
Shifting [max selection]
Shifting [DHW
request]
During DHW heating, there is no restriction for the heating circuits with regard to heat
consumption.
But the heat source provides maximum limitation of the temperature for DHW heating.
If the heat source does not reach the required flow temperature setpoint, the amount of
heat drawn by the heating circuits will be restricted by a load reduction. Apart from that,
the heating circuits can draw heat without any restriction.
The heat source provides maximum limitation of the temperature for DHW heating.
During DHW heating, the heating circuits are not allowed to draw any heat.
The heat source delivers the temperature to satisfy the heat demand for DHW heating.
With regard to heat consumption during DHW heating, there are no restrictions for the
heating circuits.
The heat source delivers the temperature according to maximum selection of DHW
heat demand and heat demand from other consumers.
If the heat source does not reach the required flow temperature setpoint, the amount of
heat drawn by the heating circuits will be restricted via load reduction. Apart from that,
the heating circuits can draw heat without any restriction.
The heat source delivers the temperature according to maximum selection of DHW
heat demand and heat demand from other consumers.
The priority function only acts on the heating circuits, not on ventilation systems.
Settings
Settings
No priority
Shifting priority
Absolute priority
No priority / maximum
selection
Shifting priority /
maximum selection
Note