16
CLEANING THE UV QUARTZ GLASS
ALWAYS ISOLATE THE UNIT FROM ANY ELECTRICITY AND WATER SUPPLIES
BEFORE CARRYING OUT MAINTENANCE ON THE UNIT.
If you notice an increase in algae formation and/or see that limescale is forming,
you will need to check that the UV bulb is working properly. To ensure
peak efficiency, the UV bulb must be replaced every 8000 hours of operation.
How to Clean the UV Quartz glass:
1. Unplug the UV light’s power plug.
2. Switch off the water pump.
3. Unscrew the black UV retaining collar and carefully pull out the device head along
with the UV bulb (please do not touch the UV bulb with your hands). (FIG. 16.1 - 16.2)
4. To remove the quartz sleeve carefully ease out from inside the unit.
This may be tight. (FIG. 16.3)
5. Now you can clean the quartz sleeve with a damp cloth.
6. Check the quartz sleeve for damage before putting it back.
7. Put the Quartz glass back in the unit and be sure that the orange O-ring is in place
and is clean.
8. Check that the black O-ring is in the groove of the quartz sleeve. (FIG. 16.4)
9. Put the device head back in the Quartz sleeve and screw it tight. (FIG. 16.5)
10. Switch on the water pump and check for any leaks.
11. Now you can switch on the UV.
Unscrew Orange
O-Ring
Black O-Ring
FIGURE 16.1
FIGURE 16.5
FIGURE 16.2 FIGURE 16.3 FIGURE 16.4
As already mentioned, it is essential that the unit is protected from frost during the winter
months, or disconnected from water and electricity supplies and stored indoors. During the
spring and summer season, the quartz sleeve, which separates the UV bulb from the water
passing through the unit, will need to be cleaned two or three times. This is essential, as dirt
or limescale building up on the quartz sleeve will inhibit the penetration of the ultraviolet light
into the water and affect the efficient working of the unit.
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