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7.1.3 Cleaning with Cleaning Solution
Cleaning the lamp protective tubes by filling the radiation chamber with a cleaning solution:
➤ Switch on UV system with the START/STOP key
➤ Switch off master switch or disconnect power plug
➤ Close shut-off valves upstream and downstream of the radiation chamber
➤ Open water drain plug and vent screw and remove
➤ Discharge radiation chamber
➤ Reinstall water drain plug and tighten; only very little force is required for this purpose
➤ Fill the radiation chamber with cleaning solution via the vent opening
➤ Allow the cleaning solution to soak in for at least 20 minutes
➤ Open water drain plug and remove
➤ Discharge (empty) radiation chamber and dispose of cleaning solution according to
requirements
➤ Thoroughly flush radiation chamber with clean water until all remains of the cleaning solution
are removed
➤ Screw in water drain plug and tighten; only very little force is required for this purpose
➤ Slowly open shut-off valve upstream of radiation chamber
➤ Fill radiation chamber until water emerges from the vent screw
ATTENTION!
Use the clamping screw of the manual wiper if system is wall-mounted vertically!
➤ Close vent screw; only very little force is required for this purpose
➤ Open shut-off valve downstream of radiation chamber
(only necessary for manual shut-off valve)
➤ Check radiation chamber for leaks
➤ Switch on master switch or connect power plug
The UV system is now ready for operation.
IMPORTANT!
• For radiation chambers that are regularly cleaned by filling with a cleaning solution, it is
recommended to replace the water drain screw and vent screw by suitable valves.
• It is advisable to use a suitable acid-resistant pump to fill larger radiation chambers via
the water drain opening.
• If the radiation chamber is filled using a pump, it is advisable to circulate the cleaning
solution via the vent opening. This will shorten the cleaning time and improve the
results.
• The cleaning solution can be reused several times if it is collected and stored in a
suitable container.
7.1.4 Cleaning the UV-C Sensor
➤ Disconnect sensor connection cable from UV-C sensor
➤ Unscrew UV-C sensor out of radiation chamber
➤ Clean quartz window with a rag soaked in cleaning solution until the coating is completely
removed
➤ Rinse quartz window with clear water and dry with a soft cloth
➤ Check O-ring for damage. Replace damaged seal
➤ Reinstall UV-C sensor and firmly tighten; only slight pressure is required for this purpose
➤ Connect sensor cable to UV-C sensor
➤ Slowly open shut-off valve upstream of radiation chamber
➤ Fill radiation chamber until water emerges from the vent screw
ATTENTION!
Use the clamping screw of the manual wiper if system is wall-mounted vertically!
➤ Close vent screw; only very little force is required for this purpose
➤ Open shut-off valve downstream of radiation chamber
(necessary only for manual shut-off valve)
➤ Check radiation chamber for leaks
➤ Switch on master switch or connect power plug
The UV system is now ready for operation.
Maintenance
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