Brochure

2.2 ALPHA1 15-55 performance range and operating mode selection
The shown hydraulic performance is without a check valve.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Q [US GPM]
0
2
4
6
8
10
12
14
16
18
20
[ft]
H
0
1
2
3
4
5
6
[m]
H
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Q [m³/h]
Constant Pressure III
Constant Pressure II
Constant Pressure I
17 18
TM068910
Push-button
• Each time you press the push-button, the circulator setting is changed.
TM061857
Constant pressure I
• The duty point of the pump will move left and right along the lowest constant-pressure curve depending on the water demand
in the system.
• The pump head (pressure) is kept constant, irrespective of the flow demand.
TM073286
Constant pressure II
• The duty point of the pump will move left and right along the middle constant-pressure curve depending on the water demand
in the system.
• The pump head (pressure) is kept constant, irrespective of the flow demand.
TM073287
Constant pressure III
• The duty point of the pump will move left and right along the highest constant-pressure curve depending on the water demand
in the system.
• The pump head (pressure) is kept constant, irrespective of the flow demand.
TM073288
ALPHA
2
9
Performance range