Evoqua DEFENDER SP-27-48-487, Руководство по эксплуатации и техническому обслуживанию

Страница: 56 / 88

Page 56
Media recharge is required when:
The pressure differential reaches 10
–12 PSI shortly after bumping.
The required system recirculation flow rate cannot be maintained.
The media does not coat well or does not readily release from the flex tubes and into the suspension.
See Tubewash Procedure.
Before pressing STOP , partially open the drain valve to clear any debris in the piping.
Press STOP . The pump stops, the effluent valve closes, and the System Idle screen displays.
1. Press MENU .
2. Press DRAIN RINSE .
3. Close Pump Discharge Valve. Press next.
4. Press
BUMP CYCLE . The filter bumps for the preprogrammed number of times (10).
Press Next.
5. Open Drain Valve. Press next.
6. Open Vacuum Drain Valve. Press next.
7. Once the tank is completely empty, Close Drain Valve. Press next.
8. Open Pump Discharge Valve. Press next.
9. Fill Tank. Press
PUMP ON , and then wait a couple of seconds after the water passes the
viewing window. Tank is full when water is flowing out if the Vacuum drain valve
10. Press PUMP OFF . Press next.
11. Press REPEAT and follow the steps on the controller to rinse the tank again and remove
as much residual media and debris as possible.
12. Close pump discharge valve. Press next.
13. Open drain valve. Once the tank is completely empty, Press next.
14. Close drain valve. Press next.
15. Close vacuum drain valve. Press next.
16. Open vacuum transfer valve. Press next.
17. Open vacuum hose valve. Press next.
18. Insert vacuum hose into bag of media.
19. Press
Vacuum On to vacuum media into the tank. Continue until the required amount of
media has been loaded.
20. Press Vacuum Off. Press next.
21. Close vacuum hose valve. Press next.
22. Close vacuum transfer valve. Press next.
23. Open precoat vent line valve. Press next.
24. Open pump discharge valve. Press next.
25. Open vacuum drain valve. Press next.
26. Fill Tank. Press
PUMP ON , and then wait a couple of seconds after the water passes the
viewing window. Tank is full when water is flowing out if the Vacuum drain valve. System
is full when water is flowing out of the precoat vent line.
27. Press PUMP OFF . Press next.
28. Close vacuum drain valve. Press next.
29. Close precoat vent line valve. Press next.
30. System will automatically begin a 10 minute precoat cycle, and then return to filter mode.