Calpeda NCE HQ2 Instrucciones De Uso página 37

8.Control function(Take NCE HQ2 50-120 as an example）
8.1 Proportional pressure curve(0~12m)
The application of Proportional pressure control: the pump performance is adjusted
according to the actual system heat demand. The pump head increases proportionally
to the flow rate of the system. The pump performance depends on the required pump
curve and the pump pressure is set in the range 0 to 12m.
Figure1 Proportional pressure curve/setting
Choosing the correct proportional pressure setting depends on the characteristics of the
heating system and the actual heat demand.
8.2 Constant pressure curve
Constant pressure control is used to adjust pump performance based on actual system
heat demand, but the pump performance curve will depend on the desired pump curve.
The pressure setting range of the pump is 0-12m, which can be set by yourself.
Choosing the correct constant pressure setting depends on the characteristics of the heating
system and the actual heat demand.
Figure2 Constant pressure curve/setting
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