Setting In Connection With Pump Replacement; Max. Or Min. Curve Duty; Constant Curve Duty - Grundfos UPED 50-12 Montage- Und Betriebsanleitung

6.3.1 Setting in connection with pump
replacement
If an uncontrolled pump is to be replaced with a
UPE Series 2000, settings can be made according to
the tables below.
Existing pump at maximum speed
Existing
pump
Maximum
Setting of
head
head [m]
[m]
3 2
4 2
5 2.5
6 3
7 3.5
8 4
9 4.5
10 5
11 5.5
12 6
Read the tables as follows:
• If the maximum head of the existing pump is
6 metres and the pump is running at maximum
speed under normal operating conditions, it is rec-
ommended to set the UPED pump to 3 metres and
to select proportional pressure.
• If, however, the existing pump is running at a
reduced speed, it is recommended to set the
UPED pump to 2 metres and to select constant
pressure.

6.4 Max. or min. curve duty

Can be set by means of the control panel or the
R100.
The pump can be set to operate according to the
max. or min. curve, like an uncontrolled pump,
see fig. 9.
H
Min.
Fig. 9
132
UPE Series 2000
Setting of
control mode
Constant pressure
Constant pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Max.
Q
Existing pump at reduced speed
Existing
UPE Series 2000
pump
Maximum
Setting of
head
head [m]
[m]
3 1.5
4 1.5
5 2
6 2
7 2.5
8 3
9 3.5
10 3.5
11 4
12 4
The max. curve mode can be selected if an uncon-
trolled pump is required. In this operating mode, the
pump will operate independently of an external con-
troller, if installed.
The min. curve mode can be used in periods in
which a minimum flow is required. This operating
mode is suitable for night-time duty.
Two different min. curves can be set by means of the
R100.

6.5 Constant curve duty

Can be set by means of the R100.
The pump can be set to operate according to a con-
stant curve, like an uncontrolled pump. Select one of
19 curves between the max. and min. curves, see
fig. 10.
H
Min.
Fig. 10
Setting of
control mode
Constant pressure
Constant pressure
Constant pressure
Constant pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Proportional pressure
Max.
Q