6.4.3
Replace the 1 µm-sediment filter cartridge
1. Close the tap water valve.
2. Close the storage tank valve.
3. Open the water purifier 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. Using the larger key (supplied), carefully unscrew (by turning to the right), the filter holder
(Figure 6).
WARNING
: the filter holder is full of water, it is then recommended to have a mop
close to hand.
6. Once the filter holder is out, remove the used cartridge. Rince the filter holder. Insert the
new “1 µm-sediment filter” cartridge (in whatever way).
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. Open the tap water valve.
10. 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 osmosis membrane. Rinse is over when the
FLUSH light is off: the water purifier is producing purified water.
11. Open the storage tank valve.
12. 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. In the case that
you replaced the ion-exchange resin, measure the conductivity of the purified water. It
should be close to 0 µS/cm.
13. Close the purified water valve. The water purifier is now operational.
O-Classic
operator’s manual
version: 20.01.22
19
Figure 6
