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Commissioning, inspection, maintenance
Further details regarding the individual steps
Flushing, testing for leaks and filling the solar thermal system
■
!
Please note
Filling and commissioning the
solar thermal system without
first safeguarding heat transfer
results in thermal loads.
If commissioning is carried out
prior to this, cover the collec-
tors and keep covered until
heat transfer has been regula-
ted.
Note
The glass cover of Viessmann flat-
plate collectors is coated with a pro-
tective foil.
For vacuum tube collectors, use the
tarpaulins available as accessories.
■ Flushing the solar thermal system
8
(cont.)
– Soldered copper pipes
Flush particularly thoroughly as any
residual scale may damage the
operation of the solar thermal sys-
tem.
– Flush solar thermal system with heat
transfer medium. Otherwise there is
a risk that residual water from flush-
ing may become mixed with the heat
transfer medium and thus alter its
properties.
Note
To flush and fill the solar thermal
system, use the filling container or
filling station available as acces-
sories. These contain high speed
pumps with high pump rates and fil-
ters.
■ Never drain the system with a suction
pump.
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