Weishaupt WHI sol/aqua 20 1, Руководство пользователя, Страница: 22 / 36

Installation and operation instructions
Separation station WHI sol/heat 20 #1 / 40 #1; Separation station WHI sol/aqua 20 #1 / 40 #1
6 Commissioning
83514202 ▪ 1/2014-06 ▪ Ext. PAW
22-36
1. Switch off the solar pump.
2. Disconnect the expansion tank from the solar system. This prevents
dirt particles still present in the pipes from being flushed into the
expansion tank. Observe the separate instructions for the expansion
tank!
3. The return ball valve [b] must be closed (90° position, see page 20).
4. Connect the flush and fill station:
- Pressure hose to the fill valve [d]
- Flush hose to the drain valve [g].
5. Open the fill and drain valves [d|g] and put the flush and fill station into
operation.
6. Since the air can escape only slowly, the system must be filled slowly
and vented on the collector. Otherwise the air/water mixture will be
distributed over the entire circuit. Once the filling process is finished,
flushing is started.
7. To vent the pump stroke, open and close the return ball valve [b]
during flushing.
8. Keep flushing the solar circuit until the solar fluid exits without forming
bubbles (see page 21).
9. Flush the collector fields individually, if possible!
10. Close the drain valve [g] with the filling pump running and increase the
system pressure to approx. 5 bars. The system pressure can be read
on the pressure gauge [e].
11. Vent the circulation pump via the vent screw.
12. Close the fill valve [d] and switch off the pump of the flush and fill sta-
tion.
13. Check at the pressure gauge if the system pressure is being lowered
and eliminate any leaks, if present.
14. Reduce the pressure on the drain valve [g] to the system-specific
pressure, if necessary.
15. Connect the expansion tank to the solar circuit and set the operating
pressure of the solar system by means of the flush and fill station
(for the required operating pressure, see instructions of the expansion
tank).
16. Close the fill and drain valves [d|g].
17. Take the ball valve [b] to the 0° position (see page 20).