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6.7
Replacing the filter cartridge
I
CAUTION!
Close the existing check valve before replacing the filter cartridge!
INFORMATION!
f The filter cartridge must be replaced no later than 12 months after commissioning,
irrespective on the degree of exhaustion.
f The filter cartridge must also be replaced after a shutdown period of 4 weeks or more.
Procedure:
1. Close the check valve.
2. Unscrew the filter cartridge out of the filter head in a clockwise
motion (see Fig. 12).
Dismantling can be simplified by turning the filter head in the filter
bracket by 90°.
3. Install new filter cartridge (see Fig. 12).
4. Flush and bleed filter cartridge as described in Section 6.6.
5. Dispose of the removed filter cartridge; observe the local disposal
regulations.
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2
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Fig. 12
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