Reference Description
(1) Status
(2) OSCi Overflow
When you tap the warning, the screen will show that the water level in the OSCi is too high.
By fixing the problem (see section Problem solving), this warning will disappear automatically.
5.8 Maintenance
Check the filters regularly as explained below in order to prevent untreated condensate
from entering the sewer.
Sample the condensate weekly.
• If the filters are not installed properly, oil-containing condensate can leave the OSCi.
• When new activated carbon filters are placed, the outgoing water may initially look
black (caused by carbon dust). This is not harmful.
• Each new filter is provided with a label. The correct position is marked on the label.
• Used filters can be heavy.
• See to it that no condensate comes into contact with eyes, mouth, …
• If the compressor has not been in operation during a long period, bacteria formation
could occur inside the OSCi. Depending on the amount of bacteria it is advised to
clean the OSCi before putting the compressor back into operation.
Checking the condensate
Every week, a test sample should be collected during compressor operation.
1. Open the condensate sample valve at the side of the compressor (drain plate) for 5 seconds
and dispose of the collected condensate according to local regulations for oil containing
water. (This is to remove the water that remains in the test outlet tube between the OSCi
and the compressor back panel).
2. Re-open the test valve and collect the condensate in the test bottle.
3. Compare the turbidity of the sample with the 15 ppm turbidity reference bottle.
4. If the turbidity of the test sample is more intense than the reference turbidity, a request for
servicing should be initiated, to be carried out within 2 weeks time. The vertical position of
the test outlet ensures that there is enough clean activated carbon left above this position to
keep the condensate under 15 ppm for at least 2 weeks (valid for a GA 90 with dryer which
runs 24 h/day at reference conditions).
Instruction book
2920 7109 51 101
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