NEPTUN classic NCTF-O 8000 Notice D'emploi page 15

Cleaning and maintenance, replacing the UVC lamp
Attention! Dangerous electrical voltage.
Possible consequences: Death or severe injury.
Protective measures:
• Electrical units and installations with a rated voltage of U > 12 V AC or U >30 V DC located in the water:
Isolate the units and installations (switch off and disconnect from the power supply) before reaching into the
water.
• Isolate the unit before starting any work.
• Secure the unit to prevent unintentional switching on.
Attention! Breakable glass.
Possible consequences: Injury to your hands caused by cuts.
Protective measures: Handle the quartz glass and UVC lamp with care.
D, E, F
Adhere to the safety information given above! Check and clean the water outlet into the pond at regular intervals. We
recommend to clean the filters at regular intervals (e.g. every four weeks), however, at the lastest when cloudy or dirty
water from the water outlet returns to the garden pond. Never use chemical cleaning agents.
Cleaning the filters (D)
Remove the filter lid including the UVC clarifying unit from the filter housing, remove the foam filter and clean them
under running water by compressing them vigorously. Gently rinse the bio surface elements with clean water (not
under running water). Completely empty the filter housing and clean under running water. Reassembly the filters in the
reverse order, start the filter pump first (C1), then connect the power plug of the UVC pre-clarifying unit (C2).
Opening the UCV clarifying unit (E)
• Remove the cover from the UVC clarifying unit.
• Turn the UVC clarifying unit counter-clockwise up against the stop (bayonet closure), then carefully pull out of the
filter cover including the O ring (1).
• Loosen the self-tapping screw (7) until the the screw tip is sunk in the housing of the clamping screw (2).
• Unscrew the clamping screw counter-clockwise (3).
• Remove the quartz glass including the O ring towards the front with a slight turning movement (4).
• Check the quartz glass and the O ring for damage and replace, if necessary.
• Clean the quartz glass outer face with a moist cloth.
Replacing the UVC lamp (E)
Important: Only use lamps the identification and capacity data of which correspond to the information on the type
plate.
For an optimum filter performance, we recommend to replace the UVC lamp after approx. 8,000 operating hours.
• Pull out and replace the UVC lamp.
Assembly of the UVC clarifying unit (E)
• Insert the quartz glass including the O ring against the stop in the unit head (6).
• Press the O ring into the gap between unit head and quartz glass.
• Tighten the clamping screw clockwise up to the stop (7).
• Tighten the self-tapping screw (8).
• Check the O-Ring at the unit head for damage and replace, if necessary (9).
• Carefully push the unit head into the housing while applying slight pressure. Ensure that the tenons at the housing
engage in the grooves of the bayonet closure.
• Turn the unit head clockwise against the stop while applying slight pressure.
• Refit the cover for the UVC pre-clarifying unit.
Cleaning the filter pump (F)
Take pump out of the water, unscrew the stepped hose connection including the O ring from the connection thread,
actuate the engagement hook of the filter housing, open the filter housing and remove the pump. Turn off the pump
housing, remove the impeller. Clean the pump housing, the impeller and the filter housing using clear water and a
brush. After cleaning, fit the unit in the reverse order.
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