Maintenance And Cleaning - Neptun Premium NPTF-O 15000 Gebrauchsanleitung

- GB -
- GB -

Maintenance and cleaning

WARNING
Possible death or severe injury from hazardous electrical voltage!
 Prior to reaching into the water, isolate (switch off and disconnect) all units/devices used in the water.
 Isolate the device (disconnect from the power supply) before carrying out any work on it.
CAUTION
The ultra-violet radiation of the UVC lamp can burn your eyes and skin.
 Never operate the UVC lamp outside its casing.
 Never operate the UVC lamp in a casing that is defective.
CAUTION
Quartz glass and UVC lamp can break and cause cut injuries.
 Handle the quartz glass and UVC lamp with care.
 C, D
Adhere to the safety information given above! Check and clean the water outlet into the pond at regular intervals.
Clean the filters at regular intervals (e.g. every four weeks), however, at the latest when cloudy or dirty water from the
water outlet returns to the garden pond. Carry out quick cleaning first. Should this prove insufficient, clean the entire
unit. Never use chemical cleaning agents.
Quick cleaning (C2, C3)
Open and remove the filter lid from the filter housing (C2). Pull the cleaning handles several times (C3). This causes
the foam filters to compress and be mechanically cleaned. Open the cover cap at the cleaning outlet and drain the
soiled water. Screw the cover cap back on again and start the unit up (see Start-up).
Complete cleaning (C2 – C5)
Open and remove the filter lid from the filter housing (C2). Unlock and remove the inner cover (C4). Press both
engagement hooks at each of the foam filter holders sideward, then remove holders including foam filters (C5).
Remove the foam filters from the holders and clean with clear water. Open the cover cap at the cleaning outlet and
clean filter housing, inner lid and cover with water. Reassemble the filter in the reverse order. Arrange the foam filters
in water flow direction: Coarse foam filters (blue) first, then fine foam filters (red). Screw the cover cap back on again
and start the unit up (see Start-up).
Cleaning the UCV clarifying unit (D)
Open and remove the filter lid from the filter housing (C2). Turn the unit head of the UVC clarifying unit counter-
clockwise against the stop, then carefully pull off (D1). Undo the clamping screw by turning counter-clockwise, and
remove the quartz glass including the O ring forward with a slight turning movement (D2). Remove the O ring from the
quartz glass, clean and check for damage. Clean the quartz glass outer face with a moist cloth and check for damage.
Thoroughly clean the inner and outer surfaces of the housing. If necessary, replace the UVC lamp (D3).
Reassembly: Push the O ring against the collar of the quartz glass, press the quartz glass into the unit head against
the stop, fit the clamping screw and hand-tighten (D4). Check the O ring at the unit head for damage, fit the O ring and
push the unit head carefully into the housing while exerting light pressure (D5). Ensure that the tenons at the housing
engage in the grooves of the bayonet closure. Turn the unit head clockwise up to the stop while applying slight
pressure, so that the two arrows on the unit head and the housing meet (D6).
Changing the UVC lamp (D3)
For an optimum filter performance, we recommend to replace the UVC lamp after approx. 8000 operating hours.
Important! Only use lamps the designation and rating of which match the information on the type plate.
Pull out and replace the UVC lamp.
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