Technical Data - Grundfos ALPHA Pro Installation And Operating Instructions Manual

In the example in , the pump duty point is changed
from (1) to (2) because of a changed system charac-
teristic (thermostatic valves are closed) and conse-
quently a lower water demand.

8. Technical data

Supply voltage: 1 x 230 V ±10%, 50 Hz, PE.
Motor protection: The pump requires no external
motor protection.
Enclosure class: IP 42.
Insulation class: F.
Relative air humidity: Maximum 95%.
System pressure: Maximum 10 bar, 102 m head.
Inlet pressure: At +75°C: 0.5 m head, at +90°C:
2.8 m head, at +110°C: 11.0 m head.
EMC: EN 61 000-6-1 and EN 61 000-6-3.
Sound pressure level: The sound pressure level of
the pump is lower than 43 dB(A).
Ambient temperature: 0°C to +40°C.
Temperature class: TF110 to CEN 335-2-51.
Surface temperature: The maximum surface tem-
perature will not exceed +125°C.
H H
[ft] [m]
ALPHA Pro XX-60
20
6
ALPHA Pro XX-50
5
16
ALPHA Pro XX-40
4
12
3
8
2
4
1
0 0
0.0 0.2 0.4
0.0 0.1
0.6 0.8 1.0 1.2 1.4
0.2 0.3 0.4
Liquid temperature: +2°C to +110°C.
Pumps in domestic hot-water systems: Continuously:
+15°C to +60°C.
To avoid condensation in the terminal box and the
stator, the pumped liquid temperature must always
be higher than the ambient temperature. See table.
Ambient
temperature
[°C]
0
10
20
30
35
40
Liquid temp. 60 [°C]
1.6 1.8 2.0 2.2 2.4
0.5 0.6 0.7
Liquid temperature
Min. [°C] Max. [°C]
2 110
10 110
20 110
30 110
35 90
40 70
p
[kPa]
50 Hz
50
1 x 230 V
40
30
20
10
0
2.6 2.8 Q [m³/h]
0.8
Q [l/s]
9