Viessmann 47-819-55 - Page 44

44
Residual heads of the integral circulation pump 32 kW
Residual head
0
kPa
0 200 400 600 800 1000
Flow rate in l/h
100
200
300
400
0
10
20
30
40
500
50
mbar
1200100 300 500 700 900 1100
5
50
150 15
250 25
350 35
450 45
F
600
550 55
60
1300 1400
A
B
C
E
D
Fig. 30
F
Upper operational limit
Curve Pump rate of circulation pump
A
60 %
B
70 %
C
80 %
D
90 %
E
100 %
Commissioning, inspection, maintenance
Adjusting the integral circulation pump rate (cont.)
6221465