Viessmann VITODENS 111-W Technical Manual page 15

Wall mounted gas condensing boiler
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Vitodens 111-W
(cont.)
Residual heads (delivered condition)
700
70
600
60
500
50
400
40
300
30
200
20
100
10
0
0
0
Flow rate in l/h
A Min. pump rate 65 %
B Max. pump rate 26 kW (90 %)
VITODENS
200
400
600
B
A
800
1000
1200
C Max. pump rate 35 kW (100 %)
D Upper operational limit
D
C
1400
VIESMANN
2
15

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