Viessmann VITODENS 111-W Installation And Service Instructions Manual page 27

Burner adjustment when connecting multiple...
One boiler per floor
3 m
Fig. 20
Rated heating output 26 kW
Number of boilers
Correction factor (adjustable
value)
0
1
2
3
4
5
6
operation with natural gas
–
2
18
≤
> 18 25
≤
–
–
–
–
Commissioning, inspection, maintenance
(cont.)
3 4
Flue length a (m)
9
≤
> 9 21 13
≤ ≤
> 21 25 > 13 23
≤ ≤
> 23 25
– ≤
– –
– –
5 6
12
≤
> 12 18 16
≤ ≤
> 18 25 > 16 21
≤ ≤
> 21 25
– ≤
– –
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