Viessmann Vitosol
100 Technical Manual page 44

3.2 Sizing pipe diameters and circulation pump
Low flow operating mode
Installing collectors,
single rows (connected in series)
18x1
B
Calculation example
·
Collector array volume flow V at an
average throughput of 20 l/(m
·
V + 15 m
2 2
· 20 l/(m · h)
·
V + 300 l/h
·
V + 5 l/min ¢ 0.833 l/(min · collector)
np [ 45 mbar per collector field
results in
np [ 100 mbar, including
tot
connection pipes and connection set.
Installing collectors,
double rows (connection in series)
Note
We recommend alternate connection for
improved flow characteristics, if more than
six collectors type s/w 2.5 are installed
(max. 10 collectors) in series.
44
C
18x1
2
· h)
C B
A
18x1
18x1
C
A
A Flow
B Return
C Air vent valve
18x1
A Flow
B Return
C Air vent valve
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