Airwell AW-WHPMA04-H91 Manuel D'installation page 141

10.5 The circulation pump
The relationships between the head and the water flow rated,the PMW Return and the water flow
rated are shown in the graph below.
4- 10kW
(Pump maintains maximum output)
Flow rate（m 3 /h）
Water resistance(KPa)
2.87
2.71
2.49
2.16
1.89
1.53
1.16
0.91
0.73
0.59
0.50
0.41
12- 16kW
(Pump maintains maximum output)
Flow rate（m 3 /h） Water resistance(KPa)
2.97
2.81
2.6
2.41
2.25
2.05
1.85
1.65
1.48
1.26
1.04
0.87
0.69
0.51
29.1
34.2
42.0
53.8
63.4
77.4
83.8
84.8
85.0
85.0
84.9
84.7
32.1
36.7
43.4
49.5
54.6
60.8
67.4
74.4
80.7
84.3
85.4
85.7
85.9
86.0
52