Immergas SUPER TRIO Instructions And Warnings page 46

Head available to the system (direct zone)
Constant head (ΔP C).
80
70
A
60
50
40
30
20
10
0
0 200 400 600
Proportional head (ΔP V).
70
60
50
40
30
20
10
0
0 200 400 600
B
800 1000 1200 1400 1600 1800
Flow rate (l/h)
B
A
800 1000 1200 1400 1600 1800
Flow rate (l/h)
50
45
40
35
30
25
20
15
10
5
0
Key:
2000 2200 2400
50
45
40
35
30
25
20
15
10
5
0
2000 2200 2400
46
A = Available head
B = Absorbed power by the circulator
(dotted area)
53