Samson TROVIS 5500 - Intermediate Heating; Parallel Pump Operation; Speed Control of Charging Pump

94 EB 5573-1 EN
Functions of the DHW circuit
7.5 Intermediate heating
This function can only be activated in systems Anl 2.x, 4.1 and 4.5.
With the setting CO4 > F07-1, heating operation of the UP1 heating circuit is reactivated
for a period of 10 minutes after 20 minutes of priority operation (heating deactivated during
DHW heating). By setting CO4 > F07-0, storage tank charging is given unlimited priority
over the heating operation in the UP1 heating circuit.
Functions WE Conguration
Intermediate heating 1 CO4 > F07 - 1
7.6 Parallel pump operation
This function can only be activated in systems Anl 2.1 to 2.1, 4.1 and 4.5.
When CO4 > F06 - 1, the circulation pump UP1 remains activated during DHW heating.
This does not include operating situations during which the current ow temperature demand
of the pump circuit is lower than the adjusted 'Temperature limit'. In this case, the controller
applies priority operation, if necessary with intermediate heating. Once a parallel pump op-
eration cycle has been activated and the time period set in 'Stop' has elapsed, system devia-
tions greater than 5°C cause the controller to suspend parallel operation for 10 minutes and
to apply priority operation.
Setting 'Stop' to 0min leads to a parallel operation once initiated remaining regardless of a
deviation.
Functions WE Conguration
Parallel pump operation 0
10min
40.0°C
CO4>F06 - 1
Stop: 0 to 10min
Temperature limit: 20.0 to 90.0°C
7.7 Speed control of charging pump
An active speed control of the charging pump (CO4 > F21 - 1) causes the storage tank sen-
sor 2 to be activated, however, in combination with CO4 > F02 - 0 only to measure the
speed control.
When the storage tank charging pump SLP is switched on, the speed control of the pump is
activated: if the temperature at the storage tank sensor 2 is low at the beginning, a 10V sig-
nal is issued at Y1. If the temperature at SF2 reaches the value entered in 'Start speed reduc-
tion', the signal level at Y1 is reduced within the range between the limits entered in 'Start