Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 10 DHW heating 2017-09-29
The type of DHW operating mode to be used for overriding the 24-hour program can be
selected on the service level.
Main menu > Commissioning > Settings > … or
Main menu > Settings > DHW > DHW
Operating line
Range
Factory setting
Preselected optg mode input Normal / Reduced /
Protection
Normal
10.3.3 Plant operation
Plant operation indicates whether DHW heating is switched on and what its state is.
Main menu > DHW > Plant operation
Operating line
Range
Factory setting
Preselection
Auto / Off*
Auto
State Off /
DHW ready /
Charging active /
Electric
Cause Plant operation sel /
DHW user request /
Legionella function /
Overtemp
protection/overrun /
Frost protection storage
tank /
Frost protection for the
flow /
Summer operation /
* The frost protection functions are ensured (according to control priority

, refer to subsection 10.3.4)
For service purposes, DHW heating can be switched off. The primary valve will fully
close, the pumps start their overrun and will then be deactivated.
On completion of servicing, the p
lant operation selector must be set back to "Auto".
The current state of DHW heating is displayed.
It is indicated why the current state is active.
Settings
Plant operation
Preselection for the plant
operation selector
State
Cause