Hydronic Connections
47
Collector Supply and Return Piping
H
For the piping connecting the
collectors to the Solar Divicon
pumping station, Viessmann
recommends the use of commercial
copper pipe and bronze fittings, or
non-galvanized steel pipe.
PEX or
other plastic pipes are not suitable for
solar collector supply and return
piping.
H
Use only high temperature solder or
brazing material when connecting the
copper pipes in the collector piping.
The melting temperature should be
above 450°F / 232°C.
H
When laying out the collector array,
ensure that the system can “breathe”
properly. Do not route pipes above the
collector array.
Refer to the Vitosol System
Design Guidelines for
required flow rates and pipe
sizing parameters for Vitosol
200-T collectors.
Each Vitosol 200-T collector or collector
array should have isolation valves
installed in each supply and return line
to allow the isolation of collectors for
servicing.
Sample System Layout
Solar collector
Solar-Divicon (pumping station)
Collecting tank
Expansion vessel
Solar manual filling pump
System fill manifold valve
Screw-in elbow, comes with
sensor well
Dual-mode DHW tank
I
Tank temperature sensor
Air separator
Solar control unit
Flexible connection pipe (optional)
Collector temperature sensor
Fast air vent, c/w shutoff valve
*1
R Return to collector
S Supply from collector
*1
Install at least one air vent valve at the
highest point of the system.
Refer to the Vitosol System
Design Guidelines for more
information on other
installation examples and
system types.
5
3
6
8
5
3
8
v
1
.1
Do not use galvanized pipes,
galvanized fittings or graphitized
gaskets, or any type of plastic pipes.
CAUTION
IMPORTANT
S
R
I
DCW
DHW
T
T
T
The domestic hot water temperature
must be limited to 140°F / 60°C by
installing a mixing device, e.g. a
thermostatic anti-scald mixing valve.
WARNING
Summary of Contents for VITOSOL 200-T SD2A 2m2 Series
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