CMP DEL AOP 50 - Page 17

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Section 4 Maintenance & Service
4D-2QuartzTubeRemovalandCleaning
NOTE: For instructions on cleaning without mechanical disassembly,
see Appendix D.
NOTE: If the DEL AOP 50 is installed below water level, the bypass valves
must all be CLOSED to prevent excess pool water from draining into the
open unit when a Quartz Tube is removed.
1. Before continuing, allow adequate time for the Quartz Tubes to cool
and drain the water from the UV Reactor by removing the Drain Plug
and replacing it once water has stopped exiting the UV Reactor.
2. After removing the lamps, remove the top Lamp Retainer Screws
using the hex key included in the parts bag. Place the Lamp Retainer
Screws, Washers, and the Lamp Retainer aside in a safe place.
3. Using the hex key included in the parts bag, loosen the bottom
Lamp Retainer Screws two full rotations.
4. Grasp the Quartz Tube from the top of the UV Reactor, and pull to
remove it from the UV Reactor.
5. Remove the Sealing O-Ring from the top of the Quartz Tube and
set aside in a safe place. NOTE: O-Rings in the bottom Endcap of
the Reactor do not need to be removed for Quartz Tube Service.
6. Clean the Quartz Tube exterior with a mild solution of muriatic acid
(available at all pool supply stores) and water in a ratio of four parts
water to one part acid (4:1).
Figure7:UVReactorSubassembly
LAMP CONNECTOR
LAMP RETAINER SCREWS
UV REACTOR
DRAIN PLUG
LAMP
RETAINER
SEALING O
-
RING
WASHERS