8 Servicing/Maintenance
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Hya-Rain/Hya-Rain N
8.2 Maintenance/inspection
KSB recommends the following regular servicing schedule:
Table 18:
Overview of maintenance work
Maintenance interval
Maintenance work
Monthly
Replace the stored mains water.
Every 6 months
Check the mains water mode.
Check the pump control unit.
Check the discharge lines.
Every 8000 operating hours
approximately
Replace the rolling element bearings.
8.2.1 Replacing the stored mains water
Hya-Rain
We recommend replacing the stored mains water once a month.
1. Set the operating mode selector switch to mains water mode.
2. Flush the toilet or activate another consumer installation 2 or 3 times.
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The noise of the mains water flowing into the tank can be heard.
3. Set the operating mode selector switch back to automatic mode.
Hya-Rain N
The stored mains water is replaced automatically.
8.2.2 Checking the mains water mode
1. Check the overflow for any escaping water.
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If water escapes, the float valve could be defective and has to be replaced.
Replacing the float valve
A
Fig. 22:
Replacing the float valve
1. Shut off the mains water supply.
2. Undo the four screws (A) at the cover on the side.
3. Remove the cover.
4. Pull out the float valve.
5. Fit a new float valve and new sealing elements.
6. Fit the cover.
7. Screw in the four screws (A) hand-tight at the cover on the side.