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Cleaning
Do not use an abrasive cleaner!
Caution
Scratching of the sensor window or sleeve will void
any manufacturer's warranty on this item.
13. Put on chemically resistant gloves and tight-fitting protective
goggles.
14. For cleaning, use a mild acid solution, such as 10 % citric
acid, or a household cleaner, such as vinegar. For strong
fouling use IPA (IsoPropyl Alcohol). See section:
agents.
15. Clean the quartz sleeve with a soft cloth or replace it by a new
one.
16. Clean the quartz window of sensor (45.18) with a lint-free
cotton swab.
Reassembling
17. Insert centring spring (45.3) into quartz sleeve (45.2).
18. Carefully slide quartz sleeve (45.2) into reactor (45.1) until it is
locked into place in the internal quartz holder.
– Make sure, that the sleeve is not at an angle as otherwise
pressure will be applied on the sides of the sleeve and
against the reactor chamber, which can damage the sleeve.
– In case the sleeve gets stuck, gently try rotating it while
pushing it in.
19. Screw in sensor (45.18) into sensor connection (45.17) and
carefully tighten it by hand to achieve a water-tight seal.
– Make sure, that the O-ring at the sensor is placed correctly.
20. Push the quartz sealing O-ring (45.7) onto the sleeve and
move it against the quartz sleeve socket.
21. Reinstall quartz compression nut (45.8). This nut should be
tightened by hand.
22. Wrap up cable (45.19) in loops and fix it with a cable tie.
23. Remove the bucket under sensor connection (45.17).
24. If the system is equipped with a chlorination module, move the
chemical tank (fig. 9, pos. 21) back into its original position.
25. Make sure, that there is some clean water in the external tank
providing a positive pressure at the UV reactor inlet.
26. Slowly open the manual valve at the external tank outlet.
– Check, if any water leaks from the UV reactor. In case of a
leakage, carefully try to retighten the connections. If this
does not help, check the O-rings.
27. To deaerate the UV reactor, slightly loosen union nut (45.22)
at manual valve (49) and wait until water comes out. Then
carefully tighten it again.
– Be careful not to change the adjustment of manual valve
(49).
Danger of damage to the UV lamp due to
overheating
The UV reactor must be deaerated before the system
is switched on again. Otherwise the UV lamp can get
Caution
damaged by overheating.
If the UV reactor is not sufficiently deaerated, switch
off the UV lamp during startup until the UV reactor is
completely filled with water. See section:
8.13.6 Switching on/off the UV
28. Remove the water-tight foil without getting any water on
electrical components.
29. Reinstall the lamp and restart the system according to the
reassembling steps in section:
8.6 Cleaning
lamp.
8.13.4 Replacing the UV
lamp.
8.13.6 Switching on/off the UV lamp
Fig. 26 UV controller
1. To switch off the UV lamp, press the power button (45.20) at
the UV controller on the back of the AQpure control cabinet
for 2 seconds.
2. The UV lamp switches off and the display (45.21) shows
"P-OFF".
– To switch on the lamp, press power button (45.20) again for
2 seconds.
45.20
45.21
43
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