Hydrotech DLR-AP Ultraviolet Water Disinfection Unit - Manual (Page 14)

Maintenance
Required
maintenance Periodically, you will need to perform routine maintenance procedures on
your WEDECO UV disinfection unit. This section provides directions for:
• Replacing the lamp (every 365 days or in the event of a lamp-out alarm).
• Cleaning the quartz sleeve (as needed).
• Replacing the headpiece O-ring (every 365 days or when needed, based
on visual inspection).
Replacing the
lamp
The UV lamp is rated to provide 365 days of continuous use. After this time,
it must be replaced for the disinfection unit to operate effectively.
Step Action
1 Turn off the water supply to the UV disinfection unit.
2 Disconnect all power to the UV disinfection unit and wait several minutes for the lamp to
cool.
3 Drain the system: Have a bucket large enough to hold the water in the chamber, close both
shutoff valves, and open the drain to draw off the water.
4 Remove the Glo-Cap: Rotate the Glo-Cap so that the tabs line up with the raised tabs on the
headpiece and pull the cap away from the headpiece to remove it.
5 Remove the lamp: Gently pinch together the two large tabs on the transparent clip and pull
lamp assembly straight up until it is completely removed.
IMPORTANT! Lamp must be disposed of properly. Check your local regulations for
disposal of hazardous materials.
6 Insert the new UV lamp (refer to directions for installing the UV lamp).
7 Restart your disinfection unit according to the start-up sequence for your model specifications.
8 Record the date in the maintenance log.
9 Sanitize your water system (see directions in this section).
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