Xylem YSI Alyza IQ NH4, Operation Manual

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Alyza IQ NH4 Maintenance and cleaning
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figure 5-14Opening the housing lid
1 Housing lid
2 Bearer
3 Boring for the fixing screw
4 Filter mat holder
3 Open the upper filter mat holder with the aid of a screwdriver by levering
it off and exchange the upper filter mat (see Abb. 5-15,
 129).
figure 5-15Exchanging the upper filter mat
1 Upper filter mat holder
2 Upper filter mat
3 Opening for screwdriver
4 Press the upper filter mat holder shut again.
5 Fold the bearer and close the housing lid.
6 Screw the housing lid tight with the two screws.
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