DAB EVOSTA2 Installationsanweisung Und Wartung Seite 47

11.1.2 Regulation with Constant Differential Pressure
11.1.3 Regulation with constant curve
ENGLISH
In this regulating mode the differential pressure is
kept constant, irrespective of the demand for water,
The Hs set point may be set from the display.
Regulation indicated for:
– Heating and conditioning plants with low
load losses
– Single-pipe
valves
Plants with natural circulation
–
– Primary circuits with low load losses
– Domestic water recirculating systems with
thermostatic valves on the rising columns
In this regulating mode the circulator works on
characteristic curves at a constant speed.
Regulation indicated for heating and conditioning
plants with constant flow.
45
systems with thermostatic