Viessmann Vitosol100 - Page 43

3.2Sizing pipe diameters and circulation pump
43
VITOSOL
Installation examples for flat collectors Vitosol 100, type s/w 2.5
High flow operating mode
Installing collectors in a single row
6 collectors  15 m
2
absorber surface area
A Flow
B Return
C Air vent valve
Calculation example
Collector array volume flow V at an
average throughput of 40 l/(m
2
· h)
V  15 m
2
· 40 l/(m
2
· h)
V  600 l/h
V  10 l/min  1.67 l/(min · collector)
According to the diagram on page50, a
pressure drop of np  110 mbar results,
incl. connection pipes and connection set.
Recommended pipe diameter  28 x 1.5.
Installing collectors,
double rows (connection in parallel)
2 x 6 collectors  30 m
2
absorber surface
area
A Flow
B Return
C Air vent valve
Calculation example
Collector array volume flow V at an
average throughput of 40 l/(m
2
· h)
V  30 m
2
· 40 l/(m
2
· h)
V  1200 l/h
V  20 l/min  1.67 l/(min · collector)
According to the diagram on page50, a
pressure drop of np  110 mbar results,
incl. connection pipes and connection set.
Recommended pipe diameter  35 x 1.5.
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
C
B
28x1
·
·
·
·
22x1
C
A
35x1.5
B
·
·
·
·