Pressure drops
C
B
A
Heating water flow rate
in l/h
Pressure drop in mbar
10,000
8000
6000
5000
4000
3000
2000
1000
800
600
500
100.0
80.0
60.0
50.0
40.0
30.0
20.0
10.0
8.0
6.0
5.0
4.0
3.0
2.0
1.0
0.8
0.6
0.5
0.4
0.3
1000
800
600
500
400
300
200
100
80
60
50
40
30
20
10
8
6
5
4
3
kPa
Pressure drop on the heating water side
A
Cylinder capacity 500 l (lower indirect coil)
B
Cylinder capacity 300 l (lower indirect coil)
C
Cylinder capacity 300 and 500 l (upper indirect coil)
0.1
0.2
0.3
0.4
0.5
0.6
0.8
1.0
2.0
3.0
4.0
5.0
6.0
8.0
10.0
500 600
800
1000
2000
3000
4000
5000 6000
1
2
3
4
5
6
8
10
20
30
40
50
60
80
100
kPa
Pressure drop in
DHW flow rate
in l/h
mbar
Pressure drop on the DHW side
DHW cylinders
(cont.)
78
VIESMANN
VITOSOL
11
5822 440 GB
