56
Commissioning
the System
14 Commissioning the System
Following installation of the solar
collectors and hydraulic connection of
the collectors and piping, the system
can be filled. When doing so, the
thermal conditions and the particular
features of the installation must be
taken into account. For this reason, the
system may only be filled, commissioned
and maintained by a suitably authorised
technician.
To prevent damage to the system, the
heat transporting fluid used to initially fill
the system must be consistently used
thereafter.
Safety!
If the system filling point (pump station)
is located in the roof space, there
should be a suitable flat surface on
which to stand the filling station, eg
floor, loft boarding or similar.
14.1 Heat Transporting Fluid
In order to prevent frost and corrosion
damage to the solar collectors and
connections, the system may only be
filled with a high-quality heat
transporting fluid (propylene glycol and
water mix). If the recommended ready-
mixed fluid is used, this provides
adequate frost protection to approx. -
24 °C.
14.2 Instructing the Operator
The installer must instruct the system
operator in the function, operation and
required servicing intervals of
the system.
The system operator must be given the
instructions for installation and use for
safekeeping.
Figure 118: Filling Station
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