Operating instructions

www.dimplex.de 452115.66.16 FD 9206 EN-4
UPE 70-25 - UPE 120-32
English
6 Description and Function
6.1 Description of the pump (Fig. 1.1 on p. II)
The Wilo-Stratos PARA series high-efficiency pumps are wet-
running pumps with "Electronic Commutated Motor" (ECM)
technology and integrated electronic regulation module which
makes an automatic adjustment of the pump output to variable
system loads possible.
This ensures optimum system efficiency in all operating modes
and with all loads, as well as the highest possible energy savings
on the pump side.
The regulation module has an axial design and can be found on
the motor casing (Fig. 1.1 Appendix page II item 5), with up to
three types of automatic output adjustment (depending on the
type of pump):
Table 6.1:
The essential advantages of this electronic regulation are:
 Energy savings and reduced operating costs at the same
time,
 Reduction of flow noise,
 Fewer overflow valves required, e.g. in static heating
circuits.
6.1.1 Types of differential pressure regulation
The selectable types of regulation are:

p-c: The electronics maintain the differential pressure
produced by the pump constant at the selected differential
pressure setpoint HS (up to the maximum characteristic
curve) across the entire permissible volume flow range (Fig.
3.1 Appendix page III).

p-v: The electronics change the differential pressure
setpoint value to be maintained by the pump linearly
between ½Hs and Hs. The differential pressure setpoint
decreases or increases (Fig. 3.2 Appendix page III)
depending on the discharge rate.
6.2 Pump functions
6.2.1 Pump with operating button
The red button (Fig. 1.1 Appendix page II item 4) on the front of
the regulation module (Fig. 1.1 Appendix page II item 5) is the
central operating element, and offers three setting ranges.
 Setting range (Fig. 1.1 Appendix page II position 1):
Analogue input 0...10 V activated. Fig. 3.3 Appendix page III
and Fig. 3.4 Appendix page III show the functions which are
linked to the analogue control signal (factory setting).
 Setting range (Fig. 1.1 Appendix page II position 2): 
Type of regulation
p-c active.
 Setting range (Fig. 1.1 Appendix page II position 3): 
Type of regulation
p-v active.
NOTE
The minimum and maximum setting values for the delivery height with
regulation types
p-c and p-v depend on the pump type and can be
determined from the characteristic curve.
If the setpoint for the delivery height set via the red button falls below the
minimum setting value, then the pump operates at the minimum setting
Hmin for this type of regulation.
If the setpoint for the delivery height set via the red button exceeds the
maximum setting, then the pump operates at the maximum setting Hmax.
Type of regulation
1) p-c (Fig. 3.1 Appendix page III)
2)
p-v (Fig. 3.2 Appendix page III)
3) Speed adjustment via analogue signal 0...10 V 
(Fig. 3.3 Appendix page III and Fig. 3.4 Appendix page III)