Drawable water volume
■ Cylinder content heated to 60 °C
■ Without reheating
Cylinder capacity l 300 400 500 750
*2
950
*2
Draw-off rate l/min 15 15 15 15 15
Drawable water volume l 110 120 220 330 420
Water at t = 60 °C (constant)
Heat-up time
The specified heat-up times will be achieved when the maximum
continuous output of the DHW cylinder is made available at the rele-
vant heating water flow temperature and when DHW is heated from
10 to 60 °C.
Cylinder capacity l 300 400 500 750
*2
950
*2
Heat-up time at heating water flow temperature min
90 °C 16 17 19 17 18
80 °C 22 23 24 21 22
70 °C 30 36 37 26 28
Pressure drop on the heating water side
A
B
C
D
500
600
800
1000
2000
3000
4000
5000
6000
8000
10000
0.3
0.4
0.5
0.6
0.8
1
2
3
4
5
6
8
10
20
30
40
50
60
80
100
Pressure drop
Heating water flow rate
in l/h
3
4
5
6
8
10
20
30
40
50
60
80
100
200
300
400
500
600
800
1000
kPa
mbar
A
Cylinder capacity 300 l (upper indirect coil)
B
Cylinder capacity 300 l (lower indirect coil)
Cylinder capacity 400 and 500 l (upper indirect coil)
C
Cylinder capacity 500 l (lower indirect coil)
D
Cylinder capacity 400 l (lower indirect coil)
500
600
800
1000
2000
3000
4000
5000
6000
8000
10000
0.3
0.4
0.5
0.6
0.8
1
2
3
4
5
6
8
10
20
30
40
50
60
80
100
Pressure drop
Heating water flow rate
in l/h
A
B
3
4
5
6
8
10
20
30
40
50
60
80
100
200
300
400
500
600
800
1000
kPa
mbar
A
Cylinder capacity 750 and 950 l (upper indirect coil)
B
Cylinder capacity 750 and 950 l (lower indirect coil)
*2
Values determined by calculation.
DHW cylinders
(cont.)
50
VIESMANN
VITOSOL
7
5822 440 GB