Basic Documentation

177/256
Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 10 DHW heating 2017-09-29
Main menu > Commissioning > Extra configuration > Outputs > Electric immersion
heater Assign terminal
Main menu > Commissioning > Settings > … or
Main menu > Settings > DHW > DHW
Operating line
Range
Factory setting
Changeover el immersion heater
Yes / No
No
Operation el immersion heater
Normal setpoint /
Automatically
Automatically
Using this setting, changeover to the electric immersion heater can be deactivated. In
that case, the storage tank is charged with hot water throughout the year.
When using the electric immersion heater, it can be selected whether the storage tank
setpoint shall be predefined by the time switch or whether it shall apply permanently.
This setting is active only during operation with the electric immersion heater and
when a storage tank sensor is available.
10.11.5 System pump
The boiler pump (system pump) for DHW heating must be activated depending on the
type of hydraulic circuit.
The required function can be selected on the service level:
Main menu > Commissioning > Settings > … or
Main menu > Settings > DHW > Controller primary circuit
Operating line
Range
Factory setting
System pump required
Yes / No
Yes
3133S85
A
B
A
The boiler pump is located at A and
required as a system pump for DHW heating.
Input: System pump
required = Yes
B
The boiler pump is located at B and is
not required for DHW heating.
Input: System pump required = No
10.11.6 Consumer control
Any DHW plant type can be equipped with consumer control.
This function offers the choice of combining high storage tank setpoints with a reduced
risk of scalding by using lower consumer setpoints, for example. This can help to make
optimum use of a given storage tank volume.
In that case, consideration must be given to the fact that higher water temperatures
lead to the formation of more scale in the plant.
Settings
Changeover to electric
immersion heater
Operation with electric
immersion heater
Example