Flushing And Filling The Solar Thermal System - Stiebel Eltron Soki basic Utilisation Et Installation

InStallatIOn
InStallatIOn
6.5 Flushing and filling the solar thermal
system
1
2 3
4
1 BdF valve "fill"
2 Flow meter
3 BdF valve "drain"
4 water (flushing) / heat transfer medium
5 Filter
6 Fill pump
6.5.1 Preparing for flushing and filling
Note
a optional detailed procedure can be found in the col-
lector operating and installation instructions.
Note
Flush the system with potable water and not with heat
transfer medium.
Damage to the appliance and environment
!
never flush the system when there is a frost.
f Separate the expansion vessel from the solar thermal
f
system.
f Close the gravity brake by turning the ball valve to the 90°
f
position. the gravity brake is integrated inside the ball
valve above the pump.
22 |
5
6
1
1 Ball valve at the flow meter
the ball valve at the flow meter must be closed.
turn the slot to the horizontal position.
f Connect the water supply to the BdF valve (connection
f
"fill") next to the pressure gauge.
f Connect the water drain pipe to the BdF valve (connec- f
tion "drain") next to the flow meter.
6.5.2 Flushing the solar thermal system
f Open BdF valves "fill" and "drain". f
f Commission the flushing and filling station and fill the sys- f
tem with water.
f Flush the system for at least 15 minutes.
f
Damage to the appliance and environment
!
after flushing, drain the system fully.
Residual water can cause damage if there is a frost.
SOKI basic