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WTC 600 LP / MP MAINTENANCE
Service Handbook 08.2004
Aids:
- Conserving tank
- Four connection hoses
- Chemicals for conservation (compare with Table 25) and for neutralization
- Conductive capacity measuring unit, for measurement comparison after flushing
- Protective clothing (goggles, gloves, apron)
- External pump.
Starting Position:
- RO equipment set to switched off operating mode and switched off with main switch.
Work steps:
1. Fill 25 litres of chlorine-free drinking water into the flushing tank (20/16).
2. Connect the untreated water inlet; depressurise the system:
- Use the connection hoses and flushing pump (20/19) to connect the flushing tank with the
untreated water sampling tap
- Feed the drinking water adapter and connection hose from the drinking water outlet (20/8)
to the flushing tank
- Feed the concentrate adapter and connection hose from the concentrate outlet (20/12) to
the flushing tank
- Switch on the flushing pump.
3. Switch system to disinfection operating mode and adjust water pressure to 2 bar (manometer
4.7) using the untreated water sampling tap.
4. Disconnect the earthing pin plug of the metering pumps.
5. Add sodium bisulphite to the flushing tank.
6. If the system is to be protected against frost, then slowly add the RM 1,2 propandiol.
7. Allow the conservation solution to circulate for 10 minutes.
8. The more RM 1,2 propandiol is added the lower the drinking water flow. Do not change the
pressure regulating valve and concentrate regulating valve settings.
9. Set the system to switched off operating mode and switch off the master switch.
10. Disconnect the flushing tank and seal the untreated water inlet as well as the drinking water
and concentrate outlet with sealing discs (5.005-260.0) (same places as for initial startup, cf.
Chap. 3.3.1.2).
Dispose of the conservation solution according to the regulations.
NOTE