FlowConB
© RESOL 08239 Flowcon_B.monen.indd
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2.1Filling, flushing and commissioning the pump station
2. Commissioning
· Connect the pressure hose to the fill valve at the safety
head-piece below the pressure gauge (11) and open the
fill and drain valve.
· Connect the flushing hose to the fill and drain valve at
the flowmeter and open the fill and drain valve.
· The slot of the adjustment screw at the flowmeter has
to be in a horizontal position.Thus the integrated ball
valve is closed (see flowmeter manual). Open the non-
return valve above the pump;for this purpose turn the
ball valve by means of an open-ended spanner (wrench
size 14) to a 45° position (half opened, half closed).
· Fill sufficient solar fluid into the tank of a flushing and
filling station (not supplied) and fill the solar thermal
system.
· Flush the solar thermal system using the flushing and
filling station for at least 15 minutes.To remove all air
from the system, open the adjustment screw at the
flowmeter several times.
· The system may be flushed with water before
commissioning but the final installation must con-
tain antifreeze to protect against frost damage.
· Close the drain valve while the pump is running and
increase the system pressure to approx. 6 bar. The
system pressure is indicated at the pressure gauge.
· Close the fill valve and switch-off the pump of the
flushing and filling station; open the adjustment screw
at the flowmeter (vertical position).
· Bleed the system above the collector until the dis-
charged fluid is free of bubbles. Increase the pressure
to approx. 6 bar and check the system for leaks. In the
case of a significant decrease in pressure, there may be
leakage in the system
Adjust the system to the manufacturer‘s recommended
pressure (to approx. 1,8 to 2,3bar with a collector
height of approx. 5 to 10 m).
· Put the circulation pump into operation at maximum
speed (see pump manual) and let it circulate for at least
15 minutes.
· Afterwards, adjust the desired pump speed.
· Adjust the flow rate at the flowmeter according to the
specifications of the collector manufacturer.
· Remove the hoses of the flushing and filling station
and screw the caps onto the valves of the flushing and
filling valves.
· Check the system for leaks. Open both ball valves
· Die vordere Isolierschale der Solarstation anbringen,
die Thermometer einstecken.
2.2Emptying the system
· Open the non-return valve in the ball valve (see
following advice).
· Open the air vent at the highest point of the system
(above the collector).
· Open the fill and drain valve at the lowest point of the
system, if possible close to the store connection (not
supplied) or at the drain valve and the pump.
