STIEBEL ELTRON soKi Basic Bedienungsanleitung Seite 23

InStallatIOn
InStallatIOn
6.5.3 Filling the solar thermal system
CAUTION Injury
!
f Wear protective gloves when handling heat
f
transfer medium.
f Wear safety goggles.
f
f Observe the safety datasheet for the heat trans-
f
fer medium.
Note
Before filling the heat transfer medium circuit, ensure
that the pipework installation has been completed,
the collectors are connected and the cylinder has been
filled.
Damage to the appliance and environment
!
It must be ensured that the heat absorbed by the col-
lector can be transferred.
f during commissioning, first fill the heating circuit,
f
then the solar circuit.
Damage to the appliance and environment
!
never admix water or alternative heat transfer media.
Otherwise, the essential characteristics and corrosion
protection can no longer be guaranteed.
Damage to the appliance and environment
!
never fill the system in strong sunlight. this could lead
to steam hammer inside the collectors.
f Cover the collectors. f
f Fill the system with the heat transfer medium until it is ex- f
pelled free of bubbles.
f while filling the solar thermal system, vent it several times
f
at the vents, if these are installed.
f to vent the pump line, slowly open the gravity brake by f
turning it to the 0° position.
SOKI basic
f Close the gravity brake by turning it to the 90° position.
f
f Close BdF valve "drain" and raise the system pressure to f
approx. 0.5 mPa.
Note
this product is equipped with a 0.6 mPa safety valve.
f Close BdF valve "fill" and switch off the pump at the flush- f
ing and filling station.
f Observe the system pressure at the pressure gauge. If it
f
drops, remedy any leaks in the system.
f Reduce the pressure at the BdF valve "drain" to the sys- f
tem-specific pressure.
f Install the expansion vessel and set the operating pressure f
to 0.35 mPa (3.5 bar).
f Close BdF valves "fill" and "drain".
f
f Set the gravity brake to its operating position (0° position).
f
f Remove the hoses of the flushing and filling station and fit
f
the caps to the BdF valves "fill" and "drain".
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