Dd, Pd And Pdp Filter Change - BeaconMedaes dMED 7 Instruction Book

Instruction book
7.2

DD, PD and PDp filter change

Filter
Procedure
Replace the filter elements yearly or every 4000 hours (whichever comes first), or if the pressure drop
exceeds 0.35 bar (5.08 psi).
Following procedure is valid for the DD, PD and PDp filters:
1. Isolate the filter from the air net by closing the external inlet and outlet valve of the unit (customer's
installation).
2. Depressurize the filter by turning the connection nipple (6) of the automatic drain valve anti-clockwise.
3. Unscrew the bowl (3). A whistling noise will warn you if the bowl is not fully depressurized. If this occurs,
the bowl should be screwed back and the venting should be repeated.
4. Discard the filter element (2).
5. Remove the drain valve (4) by unscrewing the retaining nut (5) underneath the bowl.
6. Remove the O-ring from the bowl and clean the bowl. Position a new O-ring on the bowl.
7. Remove the O-ring from the drain valve and position a new O-ring on the drain valve. The latter is supplied
with each new filter kit.
8. Reinstall the drain valve in the bowl using the retaining nut.
9. Reposition the new filter element with the new O-rings. Apply a small amount of water based lubricant
(supplied in the medical cleaning kit) on the O-ring and on the thread of the bowl.
10. Screw the bowl completely on the filter head (1).
Warning
2920 7099 70
To ensure that the unit always produces pharmacopoeia compliant air, only dedicated and
genuine spare parts must be used.
Consult the spare parts list for part number information.
The installation and maintenance must be done by trained and certified personnel.
73