Instruction Book
9829 2115 69 100
8.3 Filter Option
Description
To protect the desiccant from contaminating fluids or particles, an inlet filter (PD for Z
compressors, DD and PD combination for G compressors) can be mounted upstream of the
dryer. On the outlet side of the dryer, a particle filter of the DDp-type can be mounted to prevent
dust particles, emerging from the desiccant bed, from entering the air net.
The filter option consists of a PD (Z compressors) or DD and PD (G compressors) inlet filter, a
DDp outlet filter, as well as all the relevant piping and instructions.
The status of the filters is read into the Elektronikon regulator, which will display an alarm
message in case of filter fouling.
The filter element of a DDp outlet filter should be replaced one week after initial start-up or
replacement of the desiccant.
In case an extra afterfilter is installed by the customer, it is important to always mount it
downstream of the DDp particle filter
(1)
For Z compressors: PD filter For GA
compressors: DD and PD filter
(2) Dryer
(3) DDp filter
(4) PDp filter
(5) Inlet filter
(6) Outlet filter
(7) Customer's installation
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