A
B
Subject to alteration without prior notice.
13
US_CA/ A•mist_10C/UM2239-1
11.5
WORN OUT FILTER CASSETTES
When the filter cassette is worn out it has to be taken care of in an environmental-friendly way.
The sheet metal casing and the aluminum separators can be recycled.
Clean filtermedia can be sent to disposal facilities, but when it contains oil and particles from the
process, local regulations for disposal or incineration need to be followed.
If the oil is washed from the cassette, it can usually be sent for landfill.
11.6
TO CLEAN FILTER CASSETTES
Filter stage 1 can be washed several times*). Wash with water-based degreasing agent in a
chamber washer (pict. A), max. permissible water temperature: 90°C.
After washing, the filter must be left to dry until it no longer drips before it can be used again
(Figure D). The filter continues to dry in the filter unit.
The Absolute filter (HEPA) is not washable and must be replaced when the pressure drop exceeds
the ”service required” level.
If you do not have a chamber washer, you can place the filter cassette in a tub filled with
water mixed with a water-based degreasing agent for 4-8 hours. Remove the cassette from the
tub and allow the filter cassette to finish dripping before you flush it clean with a high-pressure
washer.
Be careful not to damage the separators when you spray them under high pressure. The result of
this cleaning method is doubtful and should therefore be tested from case to case.
Check that the sealing strip is undamaged before you refit the filter cassette. The sealing strip
must face upward.
*
)
Depending on the type of impurities it is exposed to, the useful life of the filter may reduce after wasching, when
compared with a new filter.
t
(max)
=90°C
