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48 Maintenance and Replacement of components
6.2 Hygiene and Maintenance according to VDI 6022 Page 1
The humidification system Condair DL incorporates the very latest technology and has been designed
to guarantee hygienically trouble-free operation when operating conditions are observed . The hy-
giene during operation was tested, proven and confirmed by the award of the SGS-Fresenius Hygiene
Certificate following long-term tests at the Fresenius Institute.
To ensure operational safety and to guarantee hygiene in long-term operation, the maintenance con-
cept for the Condair DL has been structured in two stages . This differentiates between periodical
checking and the implementation of a total system maintenance of the Condair DL. In order to operate
the system according to the regulations "optimized air humidification DGUV" the maintenance must be
carried out in accordance with the information given in chapter Section 6 , additionally an maintenance
record must be provided.
Hygiene Service
For carrying out a total system maintenance your Condair representative offers maintenance
contracts.
The trained Condair service technicians have the necessary equipment and carry out the
hygiene service following the most up to date factory approved procedures and guidelines. For this
purpose, please contact your Condair representative.
6.2.1 Periodical checking
Periodical checking should be carried out monthly and include the follow ing work:
Item Work to be carried out
Nozzle system
–
Check the spray pattern of the atomizing nozzles during operation
(spray
cone: 60° acceptable). Remove atomizing nozzles with uneven spray pattern
and clean them (see total system maintenance).
– Check hoses and connections for sealing , if necessary, replace defective
components.
Post-evaporation unit – Check ceramic plates for damage . Damaged plates should be replaced (see
full servicing guide).
Note: A grey discolouration of the ceramic plates is normal. This is due to
deposits from the silver ionization.
Central unit – Silver ionization : see detailed information in Section 6.5 .
– Check hoses, connections, pressure sensors (PS4 and PS5), valves , etc.
in the central unit. Replace defective components where necessary.
Important: replace pressure sensors (PS4 and PS5) every 3 years.
Humidifier housing/
Drain pan
– Check the drain pan and humidifier housing for soiling (Rust, slime, dust),
clean if necessary (see total system service).
– Check the drain pan behind the post evaporation unit for collection of
residual water . If residual water is present, check the water drain and the post
evaporation unit.