Viessmann VITODENS 200-W Technical Manual page 11

Vitodens 200-W
(cont.)
Circulation pump head
700 70
C
600
60
500 50
400
40
300 30
B
200 20
100 10
A
0 0
0 500
Pump rate in l/h
A Stage 1
B Stage 2
C Stage 3
Note
When the heating circuit and circulation pumps are operated in parallel
for cylinder heating (no DHW priority control), we recommend the
installation of a DHW cylinder in the secondary side (downstream from
the low loss header) of the heating system.
VITODENS 200-W
1000 1500 2000
1
VIESMANN
11