Cd Unit Desiccant Change; Qdt Filter Maintenance - BeaconMedaes dMED 7 Instruction Book

7.3

CD unit desiccant change

Desiccant for CD unit
Warning
Pharmacopoeia compliance
7.4

QDT filter maintenance

Service
When the filter has to process air with a temperature higher than the reference temperature, the filter's lifetime
will shorten considerably. It is then advisable to oversize the filter.
The air flow of the filter is from the bottom to the top of the filter. Due to the composition of the activated
carbon element, the bag must be placed with the knot at the top of the bag. Observe the correct order of the
bags (activated carbon first, than catalyst)!
If an oil indicator is mounted, the purity of the air is measured. When the indicator shows a fast increase of
oil content in the air, the QDT filter element and the indicator tube have to be replaced.
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To ensure that the unit always produces pharmacopoeia compliant air, only dedicated and
genuine spare parts must be used.
The installation and maintenance must be done by trained and certified personnel.
After carrying out any maintenance or repair work, Pharmacopoeia testing must be done
by a local testing company to assure reliable and correct operation of the unit.
When replacing desiccant, make sure that the desiccant is disposed of according to the
local regulations.
Consult the parts list for part numbers.
Change the QDT filter element yearly or every 4000 hours, whichever comes first. Its
pressure drop will not increase during its useful life. Nevertheless, the adsorption element
must be changed earlier at the first signs of oil vapour and odour.
Instruction book
2920 7099 70