Chapter 4 - Maintenance
13
7.
Screw on the filter housing lightly with the filter key.
8.
Switch on the steam sterilizer and open the shut-off valve at the manometer.
9.
Check whether all the parts are secure and that the reverse osmosis unit is free from leaks.
Replacing the activated carbon filter
Replace the cartridge of the activated carbon filter once a year or when replacing the fine filter.
1.
Switch off the steam sterilizer and close the
shut-off valve at the manometer.
2.
Unscrew the filter housing (a) from the filter
body (b) using the filter key. Guide the filter
key upwards from below over the filter
housing and turn the filter key in a clockwise
direction.
WARNING
The filter housing is full to the brim with
water. Remove the water.
b
1
a
3.
Remove the activated carbon filter (1) and rinse the filter housing with tap water.
4.
Remove the sealing ring from the filter housing (a).
5.
Clean and grease the sealing ring lightly with silicone grease (art. no. 24371).
6.
Insert the new activated carbon filter in the filter housing.
7.
Screw on the filter housing lightly using the filter key.
8.
Switch on the steam sterilizer and open the shut-off valve at the manometer.
9.
Check whether all the parts are secure and that the reverse osmosis unit is free from leaks.
Replacing the mixed-bed resin cartridge
If the mixed-bed resin in the ion exchanger is exhausted (poor permeate quality), replace the mixed-bed
resin cartridge. Check the permeate conductivity after every replacement of the mixed-bed resin cartridge.
1.
Switch off the steam sterilizer and close the
shut-off valve at the manometer.
2.
Unscrew the filter housing (a) from the filter
body (b) using the filter key. Guide the filter
key upwards from below over the filter
housing and turn the filter key in a clockwise
direction.
WARNING
The filter housing is full to the brim with
water. Remove the water.
3.
Remove and replace the mixed-bed resin cartridge (1).
4.
When inserting a new cartridge, please ensure that the flat seal of the mixed-bed resin cartridge
(1) points upwards (see arrow).
5.
Remove the sealing ring from the filter housing (a).
6.
Clean and grease the sealing ring lightly with silicone grease (art. no. 24371).
7.
Replace the mixed-bed resin cartridge (1) in the filter housing.
8.
Screw on the filter housing lightly using the filter key.
9.
Remove the permeate line at the filter housing of the ion exchanger (see Fig. 1, pos. 6).
