Description And Function; Description Of The Pump (Fig. 1.1 Appendix On Page Ii; Pump Functions - Wilo UPE 100-25K Installation And Operating Instruction

UPE 100-25K - UPE 120-32K
6

Description and function

6.1 Description of the pump (Fig. 1.1 Appendix on page II)

The UPE high-efficiency pump is a series of glandless pumps
with integrated electronic regulation, which enables the perfor-
mance of the pump to be adapted automatically to variable
load states of the system.
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, with up to three types of automatic output
adjustment (depending on the type of pump):
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.

6.2 Pump functions

6.2.1 Pump with operating button
The turnbutton on the front of the regulation module (Fig. 1.1
Appendix on page II) is the central operating element with the
setting ranges.
UPE 100-25 K;UPE 100-32 K;UPE 120-32 K (Fig. 1.1 Appendix
on page II)
Setting range (Fig. 1.1 Appendix on page II item 1):

Constant speeds
 Setting range (Fig. 1.1 Appendix on page II item 2):
Type of regulation p-c active.

Setting range (Fig. 1.1 Appendix on page II item 3):

Type of regulation p-v active.

NOTE
The minimum and maximum setting values for the delivery
height with regulation types
pump type and can be determined from the characteristic
curve.
If the setpoint for the delivery height set via the 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 button
exceeds the maximum setting, then the pump operates at the
maximum setting Hmax.
p-c and p-v depend on the
 
452115.66.38c · FD 0308
Type of regulation
1) Constant speeds
2)
p-c

3) p-v

Table 6.1:
The key 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 cir-
cuits.
p-v: The electronics change the differential pressure set-


point value to be maintained by the pump linearly between
½Hs and Hs. The differential pressure setpoint decreases
or increases depending on the discharge rate.
English
EN-5