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DHW cylinders
(cont.)
Pressure drop
500
400
300
200
100
80
60
50
40
30
20
10
8
6
5
4
Heating water volume in l/h
of one cylinder cell.
Pressure drop on the heating water side
A Cylinder capacity 300 and 500 l
B Capacity 200 l
Installation accessories
11.1 Solar-Divicon
See also chapter "Sizing the circulation pump".
Viessmann supplies the Solar-Divicon to simplify the installation and
the selection of pumps and safety equipment:
■ Part no. 7188 391
Type PS10
■ Part no. 7188 392
Type PS20
A Solar-Divicon and a solar pump line are required for systems with a
second pump circuit or with a bypass circuit.
VITOSOL
100
A
80
B
60
50
40
30
20
10
8
6
5
4
3
2
1
DHW throughput in l/h
Pressure drop on the DHW side
If, on systems with a bypass circuit, the solar pump line is to be posi-
tioned to the right-hand side of Solar-Divicon, the pump of Solar-Divi-
con acts as bypass pump and that of the solar pump line as solar circuit
pump. In this case, fit the safety assembly to the solar pump line.
The solar pump line is available in the following versions:
■ Part no. 7188 393
Type P10
■ Part no. 7188 394
Type P20
11
VIESMANN
91
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