Collector Supply And Return Piping; Sample System Layout - Viessmann VITOSOL 200-T SD2A 2m2 Series Installation Instructions Manual

Collector Supply and Return Piping

Sample System Layout

DHW
I
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
For the piping connecting the
H
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.
Use only high temperature solder or
H
brazing material when connecting the
copper pipes in the collector piping.
The melting temperature should be
above 450°F / 232°C.
When laying out the collector array,
H
ensure that the system can "breathe"
properly. Do not route pipes above the
collector array.
T
T T
S
R
DCW
Solar control unit
Flexible connection pipe (optional)
Collector temperature sensor
Fast air vent, c/w shutoff valve
R Return to collector
S Supply from collector
*1
Install at least one air vent valve at the
highest point of the system.
Hydronic Connections
CAUTION
Do not use galvanized pipes,
galvanized fittings or graphitized
gaskets, or any type of plastic pipes.
Refer to the Vitosol System
Design Guidelines for
required flow rates and pipe
sizing parameters for Vitosol
200-T collectors.
IMPORTANT
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.
Refer to the Vitosol System
Design Guidelines for more
information on other
installation examples and
*1
system types.
WARNING
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.
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