12
MAINTENANCE
UV LAMP REPLACEMENT.
The TES UV lamps have a useful lamp life of 9000 hours of continual use. This
equates to approx. one years continual operation.
It is very important to note when the system was initially started up and how
many hours per day the lamp is in operation as this can then be used to
calculate when the 9,000 hours has expired and lamp replacement is necessary.
CAUTION: DO NOT EXCEED THE 9000 HOUR LAMP LIFE AS THE LAMP
REMAINING LIT IS NOT AN INDICATION THAT IT IS STILL
CAPABLE OF DOSING THE NECESSARY LEVELS OF UV
READIATION.
To remove the UV lamp, the following procedure should be adopted:
1 - Isolate the main power supply to the TES unit.
2 - Switch off the main pool recirculation pump.
3 - Close both the inlet and outlet isolating valves.
4 - Check that the pressure gauge reading has went to ZERO.
5 - Remove the top electrical cover.
Depending on the time taken to reach this stage, the UV lamp may still be hot
and therefore the system should be left to cool down for at least ten minutes.
6 - Remove the UV bulb by pulling the lamp wire in an upwards direction until
the lamp plug and lamp end socket are visible.
7 - Hold the lamp only by the lamp end piece (not the glass) and remove the
lamp connection plug.
8 - It is now possible to fully remove the UV lamp.
9 - Fit the lamp end cushion onto the bottom end of the new lamp and replace
the top two o-rings around the top ceramic lamp end (the end with the
power pins) Take care not to touch the glass surface with bear hands.
Always use clean cotton gloves or a cloth if handling the glass surfaces of
the lamp.
10 - Slide the lamp into the glass thimble taking care that the top two o-rings
remain on the lamp ceramic end and go into the glass thimble. These
o-rings are only to avoid vibration of the lamp and are not water seals.
11 - Re-connect the UV lamp power plug to the ceramic lamp end piece ensuring
that the power plug is correctly orientated to the lamp pins as the plug will
only fit in two out of four directions.
12 - Refit the reactor top cap by using the screws provided taking care not to
over-tighten.
13 - Re-instate the mains power supply to the unit but the UV lamp should not
light at this stage as the main pool circulating pump should still be stopped.
14 - Re-start the main pool circulation pump and the UV lamp should illuminate
which will be indicated again by a glow at the top clear outlet connection.
