Setting The Pump - HTW A60CGN8PLUS Manuel De L'utilisateur

9.5 Setting the pump

The pump is contolled via a digital low-voltage pulse-width modulation signal which means that the
speed of rotation depends on the input signal.The speed changes as a function of the input profile.
The relationships between the head and the water flow rated,the PMW Return and the water flow
rated are shown in the graph below.
The internal pump maintains maximum output, the indoor unit can provide the head and flow:
Indoor unit： 60, 100
3
Water resis tance（KPa ）
Flow rate （ m /h）
2.64
2.55
2.45
2.35
2.24
2.14
2.04
1.95
1.82
1.71
1.61
1.52
1.41
1.30
1.21
1.10
1.00
0.92
0.81
0.69
0.56
0.46
29.45
33.27
37.39
41.51
46.33
50.65
54.57
58.59
64.32
69.14
73.67
77.59
82.21
83.82
84.82
85.83
86.73
83.62
83.01
81.90
80.80
79.80
45