Flushing And Filling The Solar Circuit - A.O. Smith 0308801 Benutzerhandbuch

4.1

FLUSHING AND FILLING THE SOLAR CIRCUIT

The fill and drain valves required to flush and fill are integrated in the station. Make sure not to
wash dirt particles that may be present in the solar system into the expansion tank. Disconnect
the expansion tank from the solar circuit during flushing and filling, if necessary, and only use flush
and fill stations with fine filters.
Note:
The system must be clean and free of air and contaminants to ensure the perfect
functioning of the system. Therefore, we recommend installing a vent valve.
Connection of the fill station
Flow restrictor position
Open Closed
The solar circuit is flushed in flow direction.
8. Disconnect the expansion tank from the solar
thermal system.
9. Take the non return valve in the ball valve [4]
out of operation (45°).
10. Close the flow restrictor [6] below the pump
(horizontal position).
This guarantees that the dirt particles that may be
still present will be washed out of the system and
will not access the circuit again.
11. Connect the fill station to the solar pump
station:
- Pressure hose to the fill valve [5]
- Flush hose to the drain valve [7]
12. Open the fill and drain valves [5 and 7]
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