Viessmann Vitosol100 - Page 44

3.2Sizing pipe diameters and circulation pump
44
VITOSOL
Low flow operating mode
Installing collectors,
single rows (connected in series)
Calculation example
Collector array volume flow V at an
average throughput of 20 l/(m
2
· h)
V  15 m
2
· 20 l/(m
2
· h)
V  300 l/h
V  5 l/min  0.833 l/(min · collector)
np  45 mbar per collector field
results in
np
tot
 100 mbar, including
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.
5822135 GB
A Flow
B Return
C Air vent valve
B
C
A
C
18x1
18x1
18x1
·
·
·
·
A Flow
B Return
C Air vent valve
C
18x1
A
B
18x1