Faster ASEPTIC, Operating And Maintenance Manual

Page: 26 / 68

a D:GROUP Company
00254EN – Rev. 01 – 11/2012 26
7.F HEPA FILTERS (by technical assistance personnel)
ATTENTION: before replacing HEPA filters, the isolator must be decontaminated (see Para. 7C.) and
a sterilization certificate must be issued to the technicians before starting the service
operation. For the safety of the personnel and the environment, the use of relevant
personal protection devices is recommended as well as the collection of the replaced
HEPA filters in polyethylene bags.
Pass box top HEPA filters (F3)
1. Remove the pre-filter support frame.
2. Unscrew the bolts [20] that fasten the top pass box filter [21]
3. Replace the clogged filter
4. Repeat steps from 3 to 1.
Pass box rear HEPA filters (F4) (see diagram for maintenance operations page 44)
5. Open the external door of the pass box
6. Unscrew the two screws [7] that fasten the rear grid [22] and remove it
7. Unscrew the screws of the frame to release the HEPA filter [20]
8. Repleace the HEPA filter
9. Repeat the steps from 8 to 5.
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21
7
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