Solarbayer PROMATIC D10 Bedienungsanleitung Seite 51

DIRECT HEATING CIRCUIT (DC)
Stand-pipe temperature calculation
Calculation of the stand-pipe temperature is limited with the setting of parameter S3.8.
If two room temperature sensors are used and the parameters S1.5 and S1.6 are set to
support this configuration, the average temperature of this two sensors is used for the
correction of calculated temperature for the stand-pipe temperature.
Parameter S3.1 is used to set the influence of room temperature deviation for the calcula-
tion of the stand-pipe temperature, and with the parameter S3.2 you can adjust the paral-
lel shifting of the heating curve.
Heating switch OFF
If the calculated temperature of the stand-pipe isn't at least a little higher than the room
temperature, then the heating is automatically switched off. If the room temperature is not
measured and when the outdoor temperature approaches the required temperature, then
the heating is automatically switched off. The switch off point can be corrected with pa-
rameter S1.12.
At automatic switch off of the heating, a temperature of 4 °C is set for the temperature for
the stand-pipe, the circulation pump UWP2 is turned off with a 4 min delay. With parame-
ter S3.5 other possibilities for UWP2 pump operation can be selected.
Intense - BOOST heating
With parameters S3.3 and S3.4 you can define time and intensity of the boost heating,
which is activated at transition from night to day heating interval.
Boiler temperature influence on stand-pipe temperature calculation
Whenever the boiler temperature drops for 8 K or more below the minimum boiler temper-
ature, the circulation pump UWP2 is stopped.
Additional direct heating circuits
The controllers PROMATIC D10, D20 have a possibility to connect more additional direct
heating circuits, which are controlled with room thermostats ST2RDR. This option can be
set with parameter S1.4 with values 7, 8, 9 or 10.
The room thermostat is controlling the circulation pump of the additional direct heating
circuit with the first relay and with the second relay it gives the command to activate the
heat source. The controller calculates the temperature regarding to the settings of the
heat curve steepness - parameter S3.6 and the parallel shift of the heating curve for the
additional direct circuits - parameter S3.7.
51 Service settings manual