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Warning
Risk of burns!
Depending on when the power supply was switched
off, the UV lamp might still be very hot.
Wear protective gloves, if necessary.
5. Gently pull out the lamp harness, until you can see the lamp
(45.4).
– Be careful not to touch the glass of the lamp with the fingers.
Wipe off any fingerprints with alcohol and a soft cloth.
45.16
45.4
45.1
Fig. 24 Disconnecting the UV lamp
6. Separate the lamp (45.4) from the connector (45.5) by pulling
them apart.
– Do not try to twist the connector, as it can break.
7. Carefully remove lamp (45.4) from reactor (45.1) taking
special care not to angle the lamp while pulling it out.
– If the lamp is angled, pressure is applied to the inside of the
quartz sleeve (45.2), which can damage the quartz sleeve.
– Note that the centring spring (45.3) remains in the quartz
sleeve. For lamp replacement, the spring can be left in the
sleeve.
This concludes the dismantling of the lamp. The lamp can now be
replaced.
For cleaning or replacement of the quartz sleeve, go on according
to section:
8.13.5 Cleaning or replacing the quartz sleeve and the
sensor.
Reassembling
To install the new lamp, go through the following steps.
1. Be careful not to touch the glass of the lamp with the fingers.
Wipe off any fingerprints with alcohol and a soft cloth.
2. Before inserting lamp (45.4) into quartz sleeve (45.2) of UV
reactor (45.1) make sure, that the lamp centring spring (45.3)
is inside the quartz sleeve.
3. Insert lamp (45.4) into quartz sleeve (45.2) with the pins on
the connection side.
– Leave about 5 cm of the lamp protruding from the quartz
sleeve.
4. Connect lamp connector (45.5) to lamp (45.4).
– Make sure, that the connector is fully seated on the pins.
5. Screw end cover (45.12) back onto the quartz compression
nut (45.8) with screws (45.14).
6. Connect earthing wire (45.9) to earthing stud (45.11) at UV
reactor (45.1) with earthing nut and washer (45.10).
7. To restart the system:
– Switch on the power supply by turning the main breaker to
the ON position.
– If the alarm of the maintained component is active, press the
[Reset] button on the HMI to restart the system. Otherwise
press the [Start] button to restart the system.
It takes 4 minutes after startup until water can be
Note
tapped from the system, because the UV lamp needs
to warm up again.
42
45.5
8.13.5 Cleaning or replacing the quartz sleeve and the sensor
Dismantling
The following steps refer to fig.: 9.
1. If the lamp is not yet removed, remove the lamp as described
in the dismantling steps of section
lamp
and carefully set it aside on a clean cloth.
2. Shut off the upstream water supply that feeds water into the
UV reactor by closing the manual valve at the external tank
outlet.
Danger of insufficient UV disinfection performance
Manual valve (49) is adjusted by certified service
staff during commissioning. Do not change the
Caution
adjustment of this valve.
Otherwise certified service staff needs to re-adjust
the valve.
3. If the system is equipped with a chlorination module, move the
chemical tank (21) out of the system, so that you can place a
bucket under the UV sensor connection.
The following steps refer to fig.: 23-25.
4. Place an empty bucket under sensor connection (45.17).
5. Cable (45.19) is wrapped up in loops that are fixed with a
cable tie. Remove the cable tie.
– The cable tie must be removed because the cable is twisted,
when the sensor (45.18) is unscrewed. It is not necessary to
disconnect the cable from the control box.
6. Cover all electrical components around and below the working
area with water-tight foil, so that no water can ingress and
damage those components.
7. Unscrew sensor (45.18) counter-clockwise.
8. To aerate the UV reactor, slightly loosen union nut (45.22) at
manual valve (49) and wait, until the UV reactor is drained
completely into the bucket. Then carefully tighten it again.
– Be careful not to change the adjustment of manual valve
(49).
45.16
45.17
45.18
45.19
Fig. 25 Dismantling the quartz sleeve
9. Unscrew quartz compressing nut (45.8) counter-clockwise
from UV reactor (45.1).
10. Remove quartz sealing O-ring (45.7).
11. Carefully pull quartz sleeve (45.2) out of UV reactor (45.1).
– 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
pulling it out.
12. Remove centring spring (45.3) from the quartz sleeve.
8.13.4 Replacing the UV
45.22
49
45.8
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