6.4.5 Replace the resin cartridges
1. Close the tap water valve.
2. Close the storage tank valve.
3. Open the water purified valve to depressurize the network. The SOURCE light of the
electronic unit is now on. Let the purified water valve opened.
4. Turn off the water purifier by unplugging the power plug.
5. Carefully unscrew the white filter holder (the right one) (Figure 8).
6. Remove the used cartridge. Insert the new one, respecting the right way of the water flow
described part 6.3.3 (Figure 9).
7. Check that the O-ring is properly positioned in the filter holder groove, then re-screw it. To
tight with the hand should be enough.
8. Wipe off the water at the bottom of the water purifier to quickly detect a possible leak
during the starting up.
9. Remove the little used cartridge and replace a new one (Figure 10).
10. Open the tap water valve.
11. Re-plug the power plug. The POWER, PUMP and FLUSH lights are on: the water purifier is
starting a 2-minute rinse cycle of the reverse osmose membrane. Rinse is over when the
FLUSH light is off: the water purifier is producing purified water.
12. Open the storage tank valve.
13. Wait until all the filter holders are full of water. After a while, the water will come to the
purified water valve: let flowing 3 to 4 liters to correctly drain the system. Measure the
conductivity of the purified water. It should be close to 0 µS/cm.
14. Close the purified water valve. The water purifier is now operational.
O-Classic
operator’s manual
version: 20.01.22
21
Figure 8
Figure 9
Figure 10
