Samson trovis 5600, Mounting And Operating Instructions

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Function WE Configuration
Parallel pump operation OFF
10 min
40.0 °C
DHW–CO4–06 = ON
Delay of cancelation due to system deviation / 0 to 10 min
Min. flow set point in heating circuit for parallel pump opera-
tion / 20.0 to 90.0 °C
7.6 Circulation pump operation during storage tank charging
The function block setting DHW–CO4–11 = ON causes the circulation pump to continue run-
ning according to the programmed time schedule even during storage tank charging.
The function block setting DHW–CO4–11 = OFF causes the circulation pump to be switched off
as soon as the storage tank charging pump is activated. The circulation pump restarts according
to the time schedule when the storage tank charging pump has been switched off again
Function
WE Configuration
Circulation pump operation
during storage tank charging OFF DHW–CO4–11
7.7 Priority operation
In many district heating systems with primary DHW heating, the allotted amount of water can-
not meet DHW heating and heating operation demands when they are required at the same
time. As a result, the capacity required for DHW heating needs to be taken from the heating sys-
tem when great heating loads occur; and this, until DHW heating has been concluded.
Nevertheless, heating operation is not to be interrupted simply. Only the amount of energy re-
quired for DHW heating is to be deducted. This can be achieved by using the priority functions
Reverse control and Set-back operation .
7.7.1 Reverse control
In all systems with DHW heating and a heating circuit with control valve, DHW heating can be
given priority by applying reverse control. The function block setting DHW–CO4–08 = ON al-
lows the temperature at the flow sensor DHW to be monitored.
In systems without the flow sensor DHW, the temperature directly at the storage tank sensor is
monitored. If system deviations still occur after the time entered in 'Delay of reverse control
active' has elapsed, the set point of the heating circuit with control valve is gradually reduced
each minute until the flow temperature set point has reached 5 °C at the minimum. How strongly
the controller responds is determined by the 'Correction factor'.
76
EB 5610 EN
Functions of the DHW circuit