Adjusting Pump Rate Of Integral Circulation Pump - Viessmann VITODENS 200-W B2HE 85 Installation Instructions Manual

Vitodens 200-W B2HE 85, 120, 150, 199 Installation
Adjusting Pump Rate of Integrated Circulation Pump
Setting (%) in Heating circuit 1 group:
■ Min. speed: Parameter 1102.0
■ Max. speed: Parameter 1102.1
Residual Head B2HE 85-120
Operation of the integral circulation pump as heating
circuit pump for heating circuit 1
The pump speed and consequently the pump rate are
controlled subject to the outside temperature and the
switching times for heating operation or reduced mode.
The minimum and maximum speeds for heating operation
can be matched to the existing heating system at the
control unit.
■ The minimum pump rate and the maximum pump rate
are factoy-set to the following values:
Boiler model Factory-set speed setings in %
Min. pump rate
B2HE-85
B2HE-120
B2HE-150
B2HE-199
■ In the following system conditions, the internal
circulation pump is operated at a constant speed:
- Low loss header or heating water buffer tank and
heating circuits with mixing valve
- Constant supply temperature operation
Speed setting (%): Parameter 1100.2 in the Boiler group
Boiler Connections
Max. pump rate
50 85
50 100
50 75
50 100
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